helicopter borne mag emag emag-vlf surv rpt...010 received" r: t 8 1 2 1986 mining lands...

53D)6NE8881 2.8893 BORLAND LAKE 010

REPORT ON

COMBINED HELICOPTER-BORNE

MAGNETIC, ELECTROMAGNETIC AND VLF

SURVEY

BORLAND LAKE PROJECT, ONTARIO

for

SANDS MINERALS CORPORATION

by

AERODAT LIMITED

JUNE 1985

RECEIVEDFFB 12 1986

MINING LANDS SECTION

•

•

•

11111111111111 II 53D16NE0001 2.8893 BORLAND LAKE

REPORT ON

COMBINED HELICOPTER-BORNE

MAGNETIC, ELECTROMAGNETIC AND VLF

SURVEY

BORLAND LAKE PROJECT, ONTARIO

for

SANDS MINERALS COHPORA'l'ION

by

AERODAT LIMITED

JUNE 1985

010

RECEIVED" r: t 8 1 2 1986

MINING lANDS SECTION

53D16NE8aei Z . 8893 BORLAND LAKE

TABLE OF CONTENTS

010C

Page No.

1. INTRODUCTION 1-1

2. SURVEY AREA LOCATION 2-1

3. AIRCRAFT AND EQUIPMENT 3-1

3.1 Aircraft 3-1

3.2 Equipment 3-1

3.2.1 Electromagnetic System 3-1

3.2.2 VLF-EM System . 3-2

3.2.3 Magnetometer 3-2

3.2.4 Magnetic Base Station 3-2

3.2.5 Radar Altimeter 3-2

3.2.6 Tracking Camera 3-3

3.2.7 Analog Recorder 3-3

3.2.8 Digital Recorder 3-4

3.2.9 Radar Positioning System 3-4

4. DATA PRESENTATION 4-1

4.1 Base Map and Flight Path Recovery 4-1

4.2 Electromagnetic Profiles 4-2

4.3 Total Field Magnetic Contours 4-3

4.4 VLF-EM Total Field Contours 4-4

5. INTERPRETATION 5-1

6. RECOMMENDATIONS 6-1

" APPENDIX I - General Interpretive Considerations

APPENDIX II - Anomaly List

• I

I 1.

2.

3.

4.

5.

6.

•

IIII III III III I 53D16NE0001 2.8893 BORLAND LAKE

TABLE OF CONTENTS

INTRODUCTION

SURVEY AREA LOCATION

AIRCRAFT AND EQUIPMENT

3.1

3.2

Aircraft

Equipment

3.2.1

3.2.2

3.2.3

3.2.4

3.2.5

3.2.6

3.2.7

3.2.8

3.2.9

Electromagnetic System

VLF-EM System

Magnetometer

Magnetic Base Station

Radar Altimeter

Tracking Camera

Analog Recorder

Digital Recorder

Radar Positioning System

DATA PRESENTATION

4.1

4.2

4.3

4.4

Base Map and Flight Path Recovery

Electromagnetic Profiles

Total Field Magnetic Contours

VLF-EM Total Field Contours

INTERPRETATION

RECOMMENDATIONS

010C

Page No.

1 - 1

2 - 1

3 - 1

3 - 1

3 - 1

3 - 1

3 - 2

3 - 2

3 - 2

3 - 2

3 - 3

3 - 3

3 - 4

3 - 4

4 - 1

4 - 1

4 - 2

4 - 3

4 - 4

5 - 1

6 - 1

, APPENDIX I - General Interpretive Considerations

APPENDIX II - Anomaly List

LIST OF MAPS

(Scale: 1:10,000)

Maps


VLF-EM Total Field Contours

Also provided but not included as a part of this report:

Mylar overlays of 4600 Hz coaxial/4186 Hz coplanar electro*

magnetic profiles in two colours.

LIST OF MAPS

(Scale: 1:10,000)


Ie VLF-EM Total Field Contours

Also provided but not included as a part of this report:

Mylar Dverlays of 4600 Hz coaxial/4186 Hz coplanar electro-

magnetic profiles in two colours,

1-1

1. INTRODUCTON

This report describes an airborne geophysical survey

carried out on behalf of Energy Mines Limited by Aero-

dat Limited. Equipment operated included a 3-frequency

electromagnetic system, a magnetometer, a VLF-EM system

and a radar positioning system.

The survey area, located near Favourable Lake in North

western Ontario, was flown from April 18 to April 19,

1985. At a nominal spacing of 100 meters, a total of

820 line kilometers of data were collected.

• !

I

~

I •

1 - 1

1. IN TRODUC TON

This report describes an airborne geophysical survey

carried out on behalf of Energy Mines Limited by Aero-

dat Limited. Equipment operated included a 3-frequency

electromagnetic system, a magnetometer, a VLF-EM system

and a radar positioning system.

The survey area, located near Favourable Lake in North-

western Ontario, was flown from April 18 to April 19,

1985. At a nominal spacing of 100 meters, a total of

820 line kilometers of data were collected.

2-1

2. SURVEY AREA LOCATION

The index map below outlines the survey area. The flight

line direction was approximately N30 0 East at a nominal

line spacing of 100 meters.

940 I5'

83eOO'

• I

,"

I

I

I I.

2 - 1

2. SURVEY AREA LOCATION

The index map below outlines the survey area. The flight

line direction was approximately N30 0 East at a nominal

line spacing of 100 meters.

ti3°00'------iJ:::;;:i--::3~:::__f::...-~~-~---------

3-1

3. AIRCRAFT AND EQUIPMENT

3.1 Aircraft

The helicopter used for the survey was an Aerospatiale

A-Star 350D owned and operated by Maple Leaf Helicop

ters Limited. Installation of the geophysical and an

cillary equipment was carried out by Aerodat. The

survey aircraft was flown at a mean terrain clearance

of 60 meters.

3.2 Equipment

3.2.1 Electromagnetic System

The electromagnetic system was an Aerodat 3-

frequency system. Two vertical coaxial coil

pairs were operated at 932 and 4600 Hz and a

horizontal coplanar coil pair at 4186 Hz. The

transmitter/receiver separation was 7 meters.

Inphase and quadrature signals were measuredv

simultaneously for the 3 frequencies with a

time constant of 0.1 seconds. The electromag

netic bird was towed 30 meters below the heli

copter.

~ I !

3 - 1

3. AIRCRAFT AND EQUIPMENT

3.1 Aircraft

The helicopter used for the survey was an Aerospatiale

A-Star 350D owned and operated by l-1aple Leaf Helicop

ters Limited. Installation of the geophysical and an-

cilIary equipment was carried out by Aerodat. The

survey aircraft was flown at a mean terrain clearance

of 60 meters.

3.2 Equipment

3.2.1 Electromagnetic System

The electromagnetic system was an Aerodat 3-

frequency system. Two vertical coaxial coil

pairs were operated at 932 and 4600 Hz and a

horizontal coplanar coil pair at 4186 Hz. The

transmitter/receiver separation was 7 meters.

Inphase and quadrature signals were measured ~

simultaneously for the 3 frequencies with a

time constant of 0.1 seconds. The elec~romag

netic bird was towed 30 meters below the heli-

copter.

3-2

3.2.2 VLF-EM System

The VLF-EM system was a Herz Totem 1A. This in

strument measures the total field and quadrature

component of the selected frequency. The sensor

was towed in a bird 12 meters below the helicop

ter. The transmitting station used was NAA

(Cutler, Maine/ 24.0 kHz) for all lines except

210 - 340 where NSS (Annapolis, Maryland, 21.4 kHz)

was used.

3.2.3 Magnetometer

The magnetometer was a Geometrics G803 proton

precession type. The sensitivity of the in

strument was l gamma at a 0.5 second sampling

rate. The sensor was towed in a bird 12 meters

below the helicopter.

3.2.4 Magnetic Base Station

An IFG proton precession type magnetometer was

operated at the base of operations to record di

urnal variations of the earth's magnetic field.

The clock of the base station was synchronized

with that of the airborne system to facilitate

later correlation.

, ' '

)

I •

3 - 2

3.2.2 VLF-EM System

The VLF-EM system was a Herz Totem lAo This in-





(Cutler, Maine, 24.0 kHz) for all lines except


was used.

3.2.3 Magnetometer


precession type. The sensitivity of the in-

strument was 1 gamma at a 0.5 second sampling

rate. The sensor was towed in a bird 12 meters




operated at the base of operations to record di-

urnal variations of the earth's magnetIc field.



later correlation.

. 3-3

3.2.5 Radar Altimeter

A Hoffman HRA-100 radar altimeter was used to

record terrain clearance. The output from the

instrument is a linear function of altitude for

maximum accuracy.

3.2.6 Tracking Camera

A Geocam tracking camera was used to record

flight path on 35 mm film. The camera was op

erated in strip mode and the fiducial numbers

for cross-reference to the analog and digital

data were imprinted on the margin of the film.

3.2.7 Analog Recorder

An RMS dot-matrix recorder was used to display

the data during the survey.' In addition to

manual and time fiducials, the following data

was recorded:

Channel Input Scale

O Low Frequency Inphase 2 ppm/mm

1 Low Frequency Quadrature 2 ppm/mm

2 High Frequency Inphase 2 ppm/mm

3 High Frequency Quadrature 2 ppm/mm

I

~

3 - 3


A Hoffman HRA-lOO radar altimeter was used to



maximum accuracy.


3.2.7


flight path on 35 nun film. The camera was op




Analog Recorder




was recorded:

Channel Input Scale

0 Low Frequency Inphase 2 ppm/nun

1 Low Frequency Quadrature 2 ppm/nun

2 High Frequency Inphase 2 ppm/nun

3 High Frequency Quadrature 2 ppm/nun

3-4

Channel Input Scale

4 Mid Frequency Inphase 4 ppm/mm

5 Mid Frequency Quadrature 4 ppm/nun

6 VLF-EM Total Field 2.5%/mm

7 VLF-EM Quadrature 2.5%/mm

13 Altimeter (500 ft. at topof chart) 10 ft./mm

14 Magnetometer 5 gamma/mm


3.2.8 Digital Recorder

A Perle DAC/NAV data system recorded the survey

on magnetic tape. Information recorded was as

follows:

Equipment Interval

EM 0.1 seconds

VLF-EM 0.5 seconds

Magnetometer 0.5 seconds

Altimeter 0.5 seconds

MRS III 0.5 seconds

3.2.9 Radar Positioning System

A Motorola Mini-Ranger (MRS III) radar naviga

tion system was utilized for both navigation

3 - 4

Channel Input Scale


5 Mid Frequency Quadrature 4 ppm/mm



13 Altimeter (500 ft. at top of chart) 10 ft./mm


15 Magnetometer 50 gamma/rom

3.2.8 Digital Recorde~



follows:

Equipment Interval

EM 0.1 seconds

VLF-EM 0.5 seconds



MRS III 0.5 seconds


A Motorola Mini-Ranger (MRS III) radar naviga-


3-5

and track recovery. Transponders located at

fixed locations were interrogated several

times per second and the ranges from these

points to the helicopter measured to several

meter accuracy. A navigational computer tri

angulates the position of the helicopter and

provides the pilot with navigation information.

The range/range data was recorded on magnetic

tape for subsequent flight path determination.

• I

I

•

3 - 5










4-1

4. DATA PRESENTAITON

4.1 Base Map and Flight Path Recovery

A photomosaic base at a scale of 1:10,000 was prepared

by enlargement of aerial photographs of the survey area.

The flight path was derived from the Mini-Ranger radar

positioning system. The distance from the helicopter

to two established reference locations was measured sev

eral times per second, and the position of the helicop

ter calculated by triangulation. It is estimated

that the flight path is generally accurate to about

10 meters with respect to the topographic detail of the

base map. The flight path is presented with fiducials

for cross-reference to both the analog and digital data.

4.2 Electromagnetic Profiles

The electromagnetic data was recorded digitally at a

sample rate of 10/second with a time constant of 0.1

seconds. A two stage digital filtering process was

carried out to reject major sferic events, and to re

duce system noise. The process is outlined below.

i

• I':

4 - 1



A photomosaic base at a scale of 1:10,000 was 'prepared




to two established reference locations was measured sev-

eral times per second, and the position of the helicop-









seconds. A two stage digital filtering process was .

carried out to reject major sferic events, and to re-


4-2

Local atmospheric activity can produce sharp, large

amplitude events that cannot be removed by convention

al filtering procedures. Smoothing or stacking will

reduce their amplitude but leave a broader residual

response that can be confused with geological pheno

menon. To avoid this possibility, a computer algor

ithm searhces out and rejects the major sferic events.

The signal to noise ratio was further enhanced by the

application of a low pass digital filter. It has zero

phase shift which prevents any lag or peak displace

ment form occurring, and it suppresses only variations

with a wavelength less than about 0.25 seconds. This

low effective time constant permits maximum profile

shape resolution.

Following the filtering processes, a base level cor

rection was made. The correction applied is a linear

function of time thatn ensures that the corrected am

plitude of the various inphase and quadrature compo

nents is zero when no conductive pr permeable source

is present. The filtered and levelled data was then

presented in profile map form.

The inphase and quadrature profiles of the 4600 Hz

I

• I 4 - 2

Local atmospheric activity can produce sharp, large I

amplitude events that cannot be removed by convention-

al filtering procedures. Smoothing or stacking will

reduce their amplitude but leave a broader residual

response that can be confused with geological pheno-

menon. To avoid this possibility, a computer algor-

ithm searhces out and rejects the major sferic events.

The signal to noise ratio was further enhanced by the

application of a low pass digital filter. It has zero

phase shift which prevents any lag or peak displace-

ment form occurring, and it suppresses only variations

with a wavelength less than about 0.25 seconds. This

low effective time constant permits maximum profile

shape resolution.

Following the filtering processes, a base level cor-

rection was made. The correction applied is a linear

function of time thatn ensures that the corrected am-

plitude of the various inphase and quadrature compo-

nents is zero when no conductive pr permeable source .

is present. The filtered an? levelled data was then

presented in profile map form.

The inphase and quadrature profiles of the 4600 Hz

4-3

coaxial/4186 Hz coplanar coil configurations have

been presented with flight path as a two colour

mylar overlay.

4.4 Total Field Magnetic Contours

The aeromagnetic data was corrected for diurnal var

iations by subtraction of the digitally recorded

base station magnetic profile. No correction for

regional variation was applied.

The corrected profile data was interpolated onto a

regular grid at a 25m true scale interval using a

cubic spline technique. The grid provided the basis

for threading the presetned contours at a 10 gamma

interval.

The aeromagnetic data has been presented with flight

path and electromagnetic anomaly information on the

base map.

4.4 VLF-EM Total Field Contours

The VLF-EM signal from NAA (Cutler, Maine) and NSS

(Annapolis, Maryland) was compiled in map form.

I

~

4 - 3

coaxial/4l86 Hz coplanar coil configurations have

been presented with flight path as a two colour

mylar overlay.

4.4 Total Field Magnetic Contours

The aeromagnetic data was corrected for diurnal var-

iations by subtraction of the digitally recorded

base station magnetic profile. No correction for

regional variation was applied.

The corrected profile data was interpolated onto a

regular grid at a 25m true scale interval using a

cubic spline technique. The grid provided the basis

for threading the presetned contours at a 10 gamma

interval.

The aeromagnetic data has been presented with flight

path and electromagnetic anomaly information on the

base map.

4.4 VLF-EM Total Field Contours

The VLF-EM signal from NAA (Cutler, Maine) and NSS

(Annapolis, Maryland) was compiled in map form.

4-4

The mean response level of the total field signal

was removed and the data was gridded and contoured

at an interval of 2%.

The VLF-EM total field data has been presented with

flight path and electromagnetic anomaly information

on the base map.

I .

• J

4 - 4

The mean response level of the total field signal

was removed and the data was gridded and contoured

at an interval of 2%.

The VLF-EM total field data has been presented with

flight path and electromagnetic anomaly information

on the base map •

5-1

5. INTERPRETATION

A large number of electromagnetic anomalies were identified

from the electromagnetic profiles, and subsequent conductor

axes interpreted. The selection of anomalies was based on

a number of geophysical considerations, which are outlined

in Appendix I and expanded upon in the paragraphs follow

ing. The interpretation of conductor axes from these anomal

ies is discussed, along with their observed magnetic cor

relation.

Anomaly Selection

The single most important feature of anomaly recognition

is the response profile shape. Several properties of the

source can be determined from this information using char

acteristic curves for Aerodat's coaxial/coplanar configura

tion. Anomalies that exhibit profile shapes characteristic

of a thin steeply dipping conductive body are generally con

sidered to be of bedrock origin/ while those with profile

shapes characteristic of a thin flat-lying body are often

attributed to a conductive overburden source.

For each anomaly, the apparent conductance has been cal

culated based on the model of a vertical half-plane. For

J.

i

~ 5 - 1

I

~

5. INTERPRETATION

A large number of electromagnetic anomalies were identified

from the electromagnetic profiles, and subsequent conductor

axes interpreted. The selection of anomalies was based on

a number of geophysical considerations, which are outlined

in Appendix I and expanded upon in the paragraphs follow-

ing. The interpretation of conductor axes from these anomal-

ies is discussed, along with their observed magnetic cor-

relation.

Anomaly Selection

The single most important feature of anomaly recognition

is the response profile shape. Several properties of the

source can be determined from this information using char-

acteristic curves for Aerodat'scoaxial/coplanar configura-

tion. Anomalies that exhibit profile shapes characteristic

of a thin steeply dipping conductive body are generally con

sidered to be of bedrock origin, while those with profile

shapes characteristic of a thin flat-lying body are often

attributed to a conductive overburden source.

For each anomaly, the apparent conductance has been cal-

culated based on the model of a vertical half-plane. For

5-2

both the 4600 and 932 Hz responses, these are listed in

Appendix II. Conductance values of less than approximat

ely 4 mhos suggest electrolytic conduction as in faults

or shears, or possible minor disseminated mineralization.

A higher conductance value is indicative of electronic

conduction, which is characteristic of significant sul

phide or graphite mineralization.

When the exploration target is gold formations, the empha

sis for conductor identification is placed on the conduct

or's probability of being of bedrock as opposed to over

burden origin. The conductor's estimated conductance is

not a stressed factor. Although gold itself is highly

conductive, it cannot be expected to exist in sufficiently

large and well connected quantity to yield a direct air

borne electromagnetic response. However, accessory minera

lization such as sulphide or graphite may produce a good

conductance as an indirect indication. Gold might be lo

cated within a fault, shear zone or contact that may produce

a significant response due to contained clay or conductive

fluids. This type of conductor,,referred to as "structural"

is usually associated with low conductances, less than 4

mhos.

When sulphide mineralization is the exploration target.

5 - 2

both the 4600 and 932 Hz responses, these are listed in

Appendix II. Conductance values of less than approximat-

ely 4 mhos suggest electrolytic conduction as in faults

or shears, or possible minor disseminated mineralization.

A higher conductance value is indicative of electronic

conduction, which is characteristic of significant sul-

phide or graphite mineralization.

When the exploration target is gold formations, the empha-

sis for conductor identification is placed on the conduct-

or's probability of being of bedrock as opposed to over-

burden origin. The conductor's estimated conductance is

not a stressed factor. Although gold itself is highly

conductive, it cannot be expected to exist in sufficiently

large and well connected quantity to yield a direct air-

borne electromagnetic response. However, accessory minera-

lization such as sulphide or graphite may produce a good

conductance as an indirect indication. Gold might be 10-

cated within a fault, shear zone or contact that may produce

a significant response due to contained clay or conductive

fluids. This type of conductor, ,referred to as "structural"

is usually associated with low conductances, less than 4

mhos.

When sulphide mineralization is the exploration target, ! i .

J

5-3

greater emphasis can be placed on individual anomaly char

acteristics, including profile shape, estimated conductance,

and conductor axes length. As mentioned in the Appendix,

the response profile shape is largely determined by the geo

metrical orientation, physical size, and depth of the caus

ative body. High conductance values, say greater than 10

mhos, are a positive indication of either sulphide or gra

phite mineralization. When the strike length of a conductor

axis is long, shorter sections containing "anomalies"

within the anomalous zone are generally of greatest interest.

Electromagnetic Conductor Axes

Conductor axes have been interpreted from the electromag

netic anomalies based on the geophysical considerations dis

cussed above. Many axes exhibit response profile character

istics that suggest a probable source geometry, while others

feature less distinctive profile shapes. Those with pro

file characteristics indicative of a bedrock origin have

been coded as such, and those with marginal electromagnetic

responses have been labelled "possible bedrocks".

In general, a conductor's probability of being of bedrock

origin is greater when it is associated with a magnetic fea

ture, as they are indicators of the underlaying geology.

5 - 3

greater emphasis can be placed on individual anomaly char-

acteristics, including profile shape, estimated conductance,

and conductor axes length. As mentioned in the Appendix,

the response profile shape is largely determined by the geo-

metrical orientation, physical size, and depth of the caus-

ative body. High conductance values, say greater than 10

mhos, are a positive indication of either sulphide or gra-

phite mineralization. When the strike length of a conductor

axis is long, shorter sections containing "anomalies"

within the anomalous zone are generally of greatest interest.

Electromagnetic Conductor Axes

Conductor axes have been interpreted from the electromag-

netic anomalies based on the geophysical considerations dis-

cussed above. Many axes exhibit response profile character-

istics that suggest a probable source geometry, while others

feature less distinctive profile shapes. Those with pro-

file characteristics indicative of a bedrock origin have

been coded as such, and those with marginal electromagnetic

responses have been labelled "possible bedrocks".

In general, a conductor's probability of being of bedrock

origin is greater when it is associated with a magnetic fea-

ture, as they are indicators of the underlaying geology.

In this survey area, the magnetics are particularly infor

mative, as numerous geological features can be distinguished

from the contours. For this reason, apparent correlations

between conductive and magnetic responses have been coded

on the interpretation map. However, the favourability of a

coinciding or flanking magnetic anomaly would be best assessed

with the benefit of additional geological and geophysical

information.

The electromagnetic response over much of the surveyed area

is quite high, indicating a conductive environment. Many

of the conductors occur coincident with the dominantly

striking N60 0W magnetic units, evident as metavolcanics on

the Ontario Department of Mines (ODM) Map #2262, which de

scribes the area as a metavolcanic-metasediment belt. Num

erous bedrock conductors have been interpreted and a selec

tion of the more anomalous or model-like responses are de

scribed below:

Wl, W2, W3: These axes all feature high conductances and

strike with the major magnetic units. The profile shapes

at W2 are strongly characteristic of a thin, vertical plate

like source.

W4: This single line anomaly is typical of a verti

cally dipping conductor.

I

~

I

\

• J

5 - 4

In this survey area, the magnetics are particularly infor-

mative, as numerous geological features can be distinguished

from the contours. For this reason, apparent correlations

between conductive and magnetic responses have been coded

on the interpretation map. However, the favourability of a

coinciding or flanking magnetic anomaly would be best assessed

with the benefit of additional geological and geophysical

information.

The electromagnetic response over much of the surveyed area

is quite high, indicating a conductive environment. Many

of the conductors occur coincident with the dominantly

striking N600W magnetic units, evident as metavolcanics on

the Ontario Department of Mines (ODM) Map #2262, which de-

scribes the area as a metavolcanic-metasediment belt. Num-

erous bedrock conductors have been interpreted and a selec-

tion of the more anomalous or model-like responses are de-

scribed below:

WI, W2, W3: These axes all feature high conductances and

strike with the major magnetic units. The profile shapes

at W2 are strongly characteristic of a thin, vertical plate-

like source.

W4: This single line anomaly is typical of a verti-

cally dipping conductor •

5-5

W5: This anomaly, positioned over a weak, out

lying magnetic anomaly, has characteristics of a lens-type

conductor. A similar magnetic anomaly occurs to the north

west but the electromagnetic response is not as prominent.

W6,W7,C1,C3: These anomalous locations mark where conductances

are highest along a lengthy axis, consistent in response

geometry and amplitude.

W8: These axes are positioned near an intrusive-

like magnetic anomaly.

C2: This high conductance anomaly is similar to W5

in that it is coincident with a weak, outlying magnetic

anomaly.

C4,C5,C6,C9,E1,E3: The felsic metavolcanic unit identified

on ODM #2262 and evident in the magnetic contours is asso

ciated with very high conductance electromagnetic responses.

The conductive magnetic responses are similar in their area

dimensions indicating a conductive/magnetic unit or banded

combination. At C6, a distinctive magnetic anomaly may be

of interest as it indicates a change in the geology. E3

is at the east limit of the unit, where both the electromag

netic and magnetic responses diminish. This relatively iso-

I ~

5 - 5

WS: This anomaly, positioned over a weak, out-

lying magnetic anomaly, has characteristics of a lens-type

conductor. A similar magnetic anomaly occurs to the north

west but the electromagnetic response is not as prominent.

W6,W7,Cl,C3: These anomalous locations mark where conductances

are highest along a lengthy axis, consistent in response

geometry and amplitude.

W8: These axes are positioned near an intrusive-

like magnetic anomaly.

C2: This high conductance anomaly is similar to WS

in that it is coincident with a weak, outlying magnetic

anomaly.

C4,CS,C6,C9,El,E3: The felsic metavolcanic unit identified

on OOM #2262 and evident in the magnetic contours is asso

ciated with very high conductance electromagnetic responses.

The conductive magnetic responses are similar in their area

dimensions indicating a conductive/magnetic unit or banded

combination. At C6, a distinctive magnetic anomaly may be

of interest as it indicates a change in the geology. E3

is at the east limit of the unit, where both the electromag

netic and magnetic responses diminish. This relatively iso-

5-6

lated conductor flanks a weak magnetic feature. The esti

mates in Appendix II indicate a shallow (4 - 6m) high con

ductance source, dipping to the north.

C8: This zone of higher conductance is part of a

lengthy axis parallel to the dominant strike. It lies

to the northwest of weaker magnetic anomalies.

E2,E4,E5: These high conductance axes exhibit dips to the

north. E4 and E5 coincide with a magnetic unit.

The remaining conductors are similar to those discussed

above, but possess less distinguishable response profile

attributes. Some of the possible bedrock axes, where co

incident with drainage features, may in fact be due to

associated conductive sediments.

J

• I

I

~

• 5 - 6

lated conductor flanks a weak magnetic feature. The esti

mates in Appendix II indicate a shallow (4 - 6m) high con

ductance source, dipping to the north.

C8: This zone of higher conductance is part of a

lengthy axis parallel to the dominant strike. It lies

to the northwest of weaker magnetic anomalies.

E2,E4,ES: These high conductance axes exhibit dips to the

north. E4 and ES coincide with a magnetic unit.

The remaining conductors are similar to those discussed

above, but possess less distinguishable response profile

attributes. Some of the possible bedrock axes, where co

incident with drainage features, may in fact be due to

associated conductive sediments.

6-1

6. RECOMMENDATIONS

Numerous bedrock conductors have been interpreted from the

electromagnetic survey results. Many of the axes feature

geophysical characteristics suggestive of sulphide or gra

phite mineralization and warrant consideration as potential

base metal prospects. The identification of gold explora

tion targets is aided by the electromagnetic and magnetic

results presented, but is dependent largely upon the favour-

ability of local geological conditions, which are best estab

lished by those most familiar with the geology.

Based on the encouraging results of the geophysical survey,

additional investigation is recommended. However, the

further prioritization of the interpreted conductors requires

a more detailed analysis of the available geological and

geophysical information.

Respectfully submitted,

AERODAT LIMITED

July 11, 1985 Glenn A. Boustead, B.A.Se.

I • 6 - 1

6. RECOMMENDATIONS

Numerous bedrock conductors have been interpreted from the

electromagnetic survey results. Many of the axes feature

geophysical characteristics suggestive of sulphide or gra-

phite mineralization and warrant consideration as potential

base metal prospects. The identification of gold explora-

tion targets is aided by the electromagnetic and magnetic

results presented, but is dependent largely upon the favour-

ability of local geological conditions, which are best estab-

lished by those most familiar with the geology.

Based on the encouraging results of the geophysical survey,

additional investigation is recommended. However, the

further prioritization of the interpreted conductors requires

a more detailed analysis of the available geological and

geophysical information.

Respectfully submitted,

AERODAT LIMITED

July 11, 1985 Glenn A. Boustead, B.A.Sc.

IF' APPENDIX I

T- , GENERAL INTERPRETIVE CONSIDERATIONS

Electromagnetic

|j The Aerodat 3 frequency system utilizes 2 different

transmitter-receiver coil geometries. The traditional

i! coaxial coil configuration is operated at 2 widely

p separated frequencies and the horizontal coplanar coil

pair is operated at a frequency approximately aligned

I with one of the coaxial frequencies.

fi The electromagnetic response measured by the helicopterII

system is a function of the "electrical" and "geometrical"

properties of the conductor. The "electrical" property

of a conductor is determined largely by its conductivity

and its size and shape; the "geometrical" property of the

response is largely a function of the conductors shape

and orientation with respect to the measuring transmitter

and receiver.

Electrical Considerations

For a given conductive body the measure of its conductivity

or conductance is closely related to the measured phase

shift between the received and transmitted electromagnetic

field. A small phase shift indicates a relatively high

conductance, a large phase shift lower conductance. A

small phase shift results in a large in-phase to quadrature

r

~ . '.

,

[;

r

~

j.

. APPENDIX I

GENERAL INTERPRETIVE CONSIDERATIONS

Electromagnetic

The Aerodat 3 frequency system utilizes 2 different

transmitter-receiver coil geometries. The traditional

coaxial coil configuration is operated at 2 widely

separated frequencies and the horizontal coplanar coil

pair is operated at a frequency approximately aligned

with one of the coaxial frequencies.

The electromagnetic response measured by the helicopter

system is a function of the "electrical" and "geometrical ll

properties of the conductor. The lIelectrical" property

of a conductor is determined largely by its conductivity

and its size and shape~ the "geometrical" property of the

response is largely a function of the conductors shape

and orientation with respect to the measuring transmitter

and receiver • /

Electrical Considerations

For a given conductive body the measure of its conductivity

or conductance is closely related to the measured phase

shift between the received and transmitted electromagnetic

field. A small phase shift indicates a relatively high

conductance, a large phase shift lower conductance. A

small phase shift results in a large in-phase to quadrature

rr- W - 2 - APPENDIX I

ratio and a large phase shift a low ratio. This relation-

\\ ship is shown quantitatively for a vertical half-plane

model on the accompanying phasor diagram. Other physicalrli models will show the same trend but different quantitative

p relationships.j

The phasor diagram for the vertical half-plane model, as

presented, is for the coaxial coil configuration with the

[j amplitudes in ppm as measured at the response peak over i'

the conductor. To assist the interpretation of the surveyfi

j results the computer is used to identify the apparent

conductance and depth at selected anomalies. The results

of this calculation are presented in table form in Appendix II

[i and the conductance and in-phase amplitude are presented in

symbolized form on the map presentation.ri

The conductance and depth values as presented are correctr

i, only as far as the model approximates the real geological

situation. The actual geological source may be of limited

- length, have significant dip, its conductivity and thickness

may vary with depth and/or strike and adjacent bodies and

overburden may have modified the response. In general the

j conductance estimate is less affected by these limitations

than is the depth estimate, but both should be considered as

relative rather than absolute guides to the anomaly's

properties.

r /;

r ! ,

I Ii " II

I .

f 1-;

I I I~

/,

J !

- 2 - APPENDIX I

ratio and a large phase shift a low ratio. This relation-

ship is shown quantitatively for a vertical half-plane

model on the accompanying phasor diagram. Other physical

models will show the same trend but different quantitative

relationships.

The phasor diagram for the vertical half-plane model, as

presented, is for the coaxial coil configuration with the

amplitudes in ppm as measured at the response peak over

the conductor. To assist the interpretation of the survey

results the computer is used to identify the apparent

conductance and depth at selected anomalies. The results

of this calculation are presented in table form in Appendix II

and the conductance and in-phase amplitude are presented in

symbolized form on the map presentation.

The conductance and depth values as presented are correct

only as far as the model approximates the real geological

situation. The actual geological source may be of limited

length, have significant dip, its conductivity and thickness

may vary with depth and/or strike and adjacent bodies and

overburden may have modified the response. In general the

conductance estimate is less affected by these limitations

than is the depth estimate, but both should be considered as

relative rather than absolute guides to the anomaly's

properties.

r i- 3 - APPENDIX I

l Conductance in mhos is the reciprocal of resistance in

ohms and in the case of narrow slab-like bodies is thei1 product of electrical conductivity and thickness.

l Most overburden will have an indicated conductance of less

: than 2 mhos; however, more conductive clays may have an

apparent conductance of say 2 to 4 mhos. Also in the low

j conductance range will be electrolytic conductors in faultsi

and shears.

lThe higher ranges of conductance, greater than 4 mhos,

indicate that a significant fraction of the electrical

conduction is electronic rather than electrolytic in

nature. Materials that conduct electronically are limited

to certain metallic sulphides and to graphite. High

conductance anomalies, roughly 10 mhos or greater, are

generally limited to sulphide or graphite bearing rocks.

Sulphide minerals with the exception of sphalerite, cinnabar

and stibnite are good conductors; however, they may occur

in a disseminated manner that inhibits electrical conduction

through the rock mass. In this case the apparent conductance

can seriously underrate the quality of the conductor in

geological terms. In a similar sense the relatively non

conducting sulphide minerals noted above may be present in

significant concentration in association with minor conductive

f I

! l ~ f .

)

- 3 - .APPENDIX I

Conductance in mhos is the reciprocal of resistance in

ohms and in the case of narrow slab-like bodies is the

product of electrical conductivity and thickness.

Most overburden will have an indicated conductance of less

than 2 mhos; however, more conductive clays may have an

apparent conductance of say 2 to 4 mhos. Also in the low

conductance range will be electrolytic conductors in faults

and shears.

The higher ranges of conductance, greater than 4 mhos,

indicate that a significant fraction of the electrical

conduction is electronic rather than electrolytic in

nature. Materials that conduct electronically are limited

to certain metallic sulphides and to graphite. High

conductance anomalies, roughly 10 mhos or greater, are

generally limited to sulphide or graphite bearing rocks.

Sulphide minerals with the exception of sphalerite, cinnabar

and stibnite are good conductors; however, they may occur

in a disseminated manner that inhibits electrical conduction

through the rock mass. In this case the apparent conductance

can seriously underrate the quality of the conductor in

geological terms. In a similar sense the relatively non

conducting sulphide minerals noted above may be present in

significant concentration in association with minor conductive

R[T - 4 - APPENDIX I, j^

j sulphides, and the electromagnetic response only relate

to the minor associated mineralization. Indicated conductancerl i is also of little direct significance for the identification

n of gold mineralization. Although gold is highly conductive

it would not be expected to exist in sufficient quantity

j l to create a recognizable anomaly, but minor accessory sulphide

mineralization could provide a useful indirect indication.

PIn summary, the estimated conductance of a conductor can

j j provide a relatively positive identification of significant

p sulphide or graphite mineralization; however, a moderatei i

to low conductance value does not rule out the possibility

of significant economic mineralization.

Geometrical Considerations

n*pi Geometrical information about the geologic conductor cani '

1 often be interpreted from the profile shape of the anomaly.

H The change in shape is primarily related to the change in

inductive coupling among the transmitter, the target, andpi/i the receiver.

riH In the case of a thin, steeply dipping, sheet-like conductor,

j the coaxial coil pair will yield a near symmetric peak over

l the conductor. On the other hand the coplanar coil pair will

ri pass through a null couple relationship and yield a minimumAF over the conductor, flanked by positive side lobes. As the

r.j i dip of the conductor decreases from vertical, the coaxial

p

~ n r I' . I

n n i I

r r 1 !

n II

ne I

n ,

n , I

n I '.

~ II 1 .

- 4 - APPENDIX I

sulphides, and the electromagnetic response only relate

to the minor associated mineralization. Indicated conductance

is also of little direct significance for tne identification

of gold mineralization. Although gold is highly conductive

it would not be expected to exist in sufficient quantity

to create a recognizable anomaly, but minor accessory sulphide

mineralization could provide a useful indirect indication.

In summary, the estimated conductance of a conductor can

provide a relatively positive identification of significant

sulphide or graphite mineralization; however, a moderate

to low conductance value does not rule out the possibility

of significant economic mineralization.

Geometrical Considerations

Geometrical information about the geologic conductor can

often be interpreted from the profile shape of the anomaly.

The change in shape is primarily related to the change in

inductive coupling among the transmitter, the target, and

the receiver.

In the case of a thin, steeply dipping, sheet-like conductor,

the coaxial coil pair will yield a near symmetric peak over

the conductor. On the other hand the coplanar coil pair will

pass through a null couple relationship and yield a minimum

over the conductor, flanked by positive side lobes. As the

dip of the conductor decreases from vertical, the coaxial

ITQ - 5 - APPENDIX I

kj j anomaly shape changes only slightly, but in the case of

the coplanar coil pair the side lobe on the down dip side O l strengthens relative to that on the up dip side.

njj As the thickness of the conductor increases, induced

current flow across the thickness of the conductor becomes

' relatively significant and complete null coupling with the

f coplanar coils is no longer possible. As a result, the l .

apparent minimum of the coplanar response over the conductor

i diminishes with increasing thickness, and in the limiting

. case of a fully 3 dimensional body or a horizontal layer

' or half-space, the minimum disappears completely.

A horizontal conducting layer such as overburden will produce

a response in the coaxial and coplanar coils that is a

function of altitude (and conductivity if not uniform). The

profile shape will be similar in both coil configurations

with an amplitude ratio (coplanar/coaxial) of about 4/1*.

In the case of a spherical conductor, the induced currents

are confined to the volume of the sphere, but not relatively

restricted to any arbitrary plane as in the case of a sheet-

like form. The response of the coplanar coil pair 'directly

over the sphere may be up to 8* times greater than that of

the coaxial coil pair.

n I '

r !

f I .

~ r '

f '

~ I '

J ! I

- 5 - APPENDIX I

anomaly shape changes only slightly, but in the case of

the coplanar coil pair the side lobe on the down dip side

strengthens relative to that on the up dip side.

As the thickness of the conductor increases, induced

current flow across the thickness of the conductor becomes

relatively significant and complete null coupling with the

coplanar coils is no longer possible. As a result, the

apparent minimum of the coplanar response over the conductor

diminishes with increasing thickness, and in the limiting

case of a fully 3 dimensional body or a horizontal layer

or half-space, the minimum disappears completely.

A horizontal conducting layer such as overburden will produce

a response in the coaxial and coplanar coils that is a

function of altitude (and conductivity if not uniform). The

profile shape will be similar in both coil configurations

with an amplitude ratio (coplanar/coaxial) of about 4/1*.

In the case of a spherical conductor, the induced currents

are confined to the volume of the sphere, but not relatively

restricted to any arbitrary plane as in the case of a sheet

like form. The response of the coplanar coil pair 'directly

over the sphere may be up to 8* times greater than that of

the coaxial coil pair.

r,- 6 - APPENDIX I

In summary, a steeply dipping, sheet-like conductor will

display a decrease in the coplanar response coincident

with the peak of the coaxial response. The relative

strength of this coplanar null is related inversely to

the thickness of the conductor; a pronounced null indicates

a relatively thin conductor. The dip of such a conductor

can be inferred from the relative amplitudes of the side-lobes,

Massive conductors that could be approximated by a conducting

sphere will display a simple single peak profile form on both

coaxial and coplanar coils, with a ratio between the coplanar

to coaxial response amplitudes as high as 8.*

Overburden anomalies often produce broad poorly defined

anomaly profiles. In most cases the response of the coplanar

coils closely follows that of the coaxial coils with a

relative amplitude ratio of 4.*

Occasionally if the edge of an overburden zone is sharply

defined with some significant depth extent, an edge effect

will occur in the coaxial coils. In the case of a horizontal

conductive ring or ribbon, the coaxial response will consist

of two peaks, one over each edge; whereas the coplanar coil

will yield a single peak.

ri ! I

r !

r :

J -

- 6 - APPENDIX I

In summary. a steeply dipping, sheet-like conductor will

display a decrease in the coplanar response coincident

with the peak of the coaxial response. The relative

strength of this coplanar null is related inversely to

the thickness of the conductor; a pronounced null indicates

a relatively thin conductor. The dip of such a conductor

can be inferred from the relative amplitudes of the side-lobes.

Massive conductors that could be approximated by a conducting

sphere will display a simple single peak profile form on both

coaxial and coplanar coils, with a ratio between the coplanar

to coaxial response amplitudes as high as 8.*

Overburden anomalies often produce broad poorly defined

anomaly profiles. In most cases the response of the coplanar

coils closely follows that of the coaxial coils with a

relative amplitude ratio of 4.*

occasionally if the edge of an overburden zone is sharply

defined with some significant depth extent, an edge effect

will occur in the coaxial coils. In the case of a horizontal

conductive ring or ribbon, the coaxial response will consist

of two peaks, one over each edge; whereas the coplanar coil

will yield a single peak.

oA

- 7 - APPENDIX I

F] *It should be noted at this point that Aerodat'sil

definition of the measured ppm unit is related tor~

\ the primary field sensed in the receiving coil

r, without normalization to the maximum coupled (coaxial

configuration). If such normalization were applied

H to the Aerodat units, the amplitude of the coplanari

coil pair would be halved.

n n ~ n 11

n Ii \1

f !

I .

1 I

~ I

I

r

I

I I,

I .' \

)

- 7 - APPENDIX I

*It should be noted at this point that Aerodat's

definition of the measured ppm unit is related to

the primary field serised in the receiving coil

without normalization to the maximum coupled (coaxial

configuration). If such normalization were applied

to the Aerodat units, the amplitude of the coplanar

coil pair would be halved.

r- 8 - APPENDIX I

Magnetics

The Total Field Magnetic Map shows contours of the

total magnetic field, uncorrected for regional varia

tion. Whether an EM anomaly with a magnetic correl

ation is more likely to be caused by a sulphide

deposit than one without depends on the type of

mineralization. An apparent coincidence between an

EM and a magnetic anomaly may be caused by a conductor

which is also magnetic, or by a conductor which lies

in close proximity to a magnetic body. The majority

of conductors which are also magnetic are sulphides

containing pyrrhotite and/or magnetite. Conductive

and magnetic bodies in close association can be, and

often are, graphite and magnetite. It is often very

difficult to distinguish between these cases. If

the conductor is also magnetic, it will usually

produce an EM anomaly whose general pattern resembles

that of the magnetics. Depending on the magnetic

permeability of the conducting body, the amplitude of

the inphase EM anomaly will be weakened, and if the

conductivity is also weak, the inphase EM anomaly

may even be reversed in sign.

n .I

\ .

r

I·

• I i

) , I

- 8 - APPENDIX I

Magnetics

The Total Field Magnetic Map shows contours of the

total magnetic field, uncorrected for regional varia-

tion. Whether an EM anomaly with a magnetic correl-

ation is more likely to be caused by a sulphide

deposit than one without depends on the type of

mineralization. An apparent coincidence between an

EM and a magnetic anomaly may be caused by a conductor

which is also magnetic, or by a conductor which lies

in close proximity to a magnetic body. The majority

of conductors which are also magnetic are sulphides

containing pyrrhotite and/or magnetite. Conductive

and magnetic bodies in close association can be, and

often are, graphite and magnetite. It is often very

difficult to distinguish between these cases. If

the conductor is also magnetic, it will usually

produce an EM anomaly whose general pattern resembles

that of the magnetics. Depending on the magnetic

permeability of the conducting body, the amplitude of

the inphase EM anomaly will be weakened, and if the

conductivity is also weak, the inphase EM anomaly

may even be reversed in sign •

- 9 - APPENDIX I

VLF Electromagnetics

The VLF-EM method employs the radiation from powerful

military radio transmitters as the primary signals.

The magnetic field associated with the primary field

is elliptically polarized in the vicinity of electrical

conductors. The Herz Totem uses three coils in the X,

Y, Z configuration to measure the total field and

vertical quadrature component of the polarization

ellipse.

The relatively high frequency of VLF 15-25 kHz provides

high response factors for bodies of low conductance.

Relatively "disconnected" sulphide ores have been found

to produce measurable VLF signals. For the same reason,

poor conductors such as sheared contacts, breccia zones,

narrow faults, alteration zones and porous flow tops

normally produce VLF anomalies. The method can therefore

be used effectively for geological mapping. The only

relative disadvantage of the method lies in its sensitivity

to conductive overburden. In conductive ground the depth

of exploration is severely limited.

The effect of strike direction is important in the sense

of the relation of the conductor axis-relative to the

energizing electromagnetic field. A conductor aligned

along a radius drawn from a transmitting station will be

" ; I

,I

. 1 ff "

~

i , .

I

I. I

- 9 - APPENDIX I

VLF Electromagnetics

The VLF-EM method employs the radiation from powerful

military radio transmitters as the primary signals.

The magnetic field associated with the primary field

is elliptically polarized in the vicinity of electrical

conductors. The Herz Totem uses three coils in the X,

Y, Z configuration to measure the total field and

vertical quadrature component of the polarization

ellipse •

The relatively high frequency of VLF 15-25 kHz provides

high response factors for bodies of low conductance.

Relatively "disconnected ll sulphide ores have been found

to produce measurable VLF signals. For the same reason,

poor conductors such as sheared contacts, breccia zones,

narrow faults, alteration zones and porous flow tops

normally produce VLF anomalies. The", method can therefore

be used effectively for geological mapping. The only

relative disadvantage of the method lies in its sensitivity

to conductive overburden. In conductive ground the depth

of exploration is severely limited.

The effect of strike direction is important in the sense

of the relation of the conductor axis-relative to the

energizing electromagnetic field. A conductor aligned

along a radius drawn from a transmitting station will be

Fr ^ -10 -

APPENDIX I

[j in a maximum coupled orientation and" thereby produce a 'l

stronger response than a similar conductor at a differentrij strike angle. Theoretically it would be possible for a

p conductor, oriented tangentially to the transmitter to

produce no signal. The most obvious effect of the strike

j angle consideration is that conductors favourably oriented

with respect to the transmitter location and also neari

l perpendicular to the flight direction are most clearly

j rendered and usually dominate the map presentation.

The total field response is an indicator of the existence

and position of a conductivity anomaly. The response will

be a maximum over the conductor, without any special filtering,

and strongly favour the upper edge of the conductor even in

the case of a relatively shallow dip.

The vertical quadrature component over steeply dipping sheet

like conductor will be a cross-over type response with the

cross-over closely associated with the upper edge of the

conductor.

The response is a cross-over type due to the fact that it

is the vertical rather than total field quadrature, component

that is measured. The response shape is due largely to

geometrical rather than conductivity considerations and

the distance between the maximum and minimum on either side

of the cross-over is related to target depth. For a given

target geometry, the larger this distance the greater the

I

J

I i

r

II !

f • [I

f r r r-, j I

.--I . ,

I ~

l ,

- 10 - APPENDIX I

in a maximum coupled orientation and" thereby produce a

stronger response than a similar conductor at a different

strike angle. Theoretically it would be possible for a

conductor, oriented tangentially to the transmitter to

produce no signal. The most obvious effect of the strike

angle consideration is that conductors favourably oriented

with respect to the transmitter location and also near

perpendicular to the flight direction are most clearly

rendered and usually dominate the map presentation •

The total field response is an indicator of the existence

and position of a conductivity anomaly. The response will

be a maximum over the conductor, without any special filtering,

and strongly favour the upper edge of the conductor even in

the case of a relatively shallow dip.

The vertical quadrature component over steeply dipping sheet

like conductor will be a cross-over type response with the

cross-over closely associated with the upper edge of the

conductor.

The response is a cross-over type due to the fact that it

is the vertical rather than total field quadratur~ component

that is measured. The response shape is due largely to

geometrical rather than conductivity considerations and

the distance between the maximum and minimum on either side

of the cross-over is related to target depth. For a given

target geometry, the larger this distance the greater the

[J W - 11 - APPENDIX I

J depth.

j i The amplitude of the quadrature response, as opposed

. to shape is function of target conductance and depthr i

as well as the conductivity of the overburden and host

q- rock. As the primary field travels down to the conductorj i

through conductive material it is both attenuated and

T phase shifted in a negative sense. The secondary field

produced by this altered field at the target also has an

!, associated phase shift. This phase shift is positive and

n is larger for relatively poor conductors. This secondary

field is attenuated and phase shifted in a negative sense

during return travel to the surface. The net effect of

these 3 phase shifts determine the phase of the secondaryr'i field sensed at the receiver.

j A relatively poor conductor in resistive ground will yield

a net positive phase shift. A relatively good conductor

'' in more conductive ground will yield a net negative phase

f"' shift. A combination is possible whereby the net phase li

shift is zero and the response is purely in-phase with no

ii quadrature component.

rij j A net positive phase shift combined with the geometrical

cross-over shape will lead to a positive quadrature responsei S

on the side of approach and a negative on the side of

departure. A net negative phase shift would produce the

reverse. A further sign reversal occurs with a 180 degree

n

l-I I I

'I ! I Ii

i , I

I, I

r-: I i I

H 1\ I

~ I

- 11 - APPENDIX I

depth.

The amplitude of the quadrature response, as opposed

, to shape is function of target conductance and depth

as well as the conductivity of the overburden and host

rock. As the primary field travels down to the conductor

through conductive material it is both attenuated and

phase shifted in a negative sense. The secondary field

produced by this altered field at the target also has an

associated phase shift. This phase shift is positive and

is larger for relatively poor conductors. This secondary

field is attenuated and phase shifted in a negative sense

during return travel to the surface. The net effect of

these 3 phase shifts determine the phase of the secondary

field sensed at the receiver.

A relatively poor conductor in resistive ground will yield

a net positive phase shift. A relatively good conductor

in more conductive ground will yield a net negative phase

shift. A combination is possible whereby the net phase

shift is zero and the response is purely in-phase with no

quadrature component.

A net positive phase shift combined with the geometrical

cross-over shape will lead to a positive quadrature response

on the side of approach and a negative on the side of

departure. A net negative phase shift would produce the

reverse. A further sign reversal occurs with a 180 degree

.il

- 12 - APPENDIX I

change in instrument orientation as occurs on reciprocal

line headings. During digital processing of the quad

rature data for map presentation this is corrected for

by normalizing the sign to one of the flight line headings,

i. fI n°

n

- 12 - APPENDIX I

change in instrument orientation as occurs on reciprocal

line headings. During digital processing of the quad-

rature data for map presentation this is corrected for

by normalizing the sign to one of the flight line headings.

APPENDIX II

Anomaly List

I

~

i

I

• I

J

APPENDIX II

Anomaly List

PAGE

J8316 CENTRE ANOMALY LIST

FLIGHT LINE ANOMALY CATEGORYFREQUENCY 4600 INFHASE QUAD.

CONDUCTOR BIRD CTP DEPTH HEIGHT

MHOS MTRS MTRS

3333

33333

33333

3

33333

333

3333

3333

3333

600600600600

610610610610610

620620620620620

630630630630630630

640640640

650650650650

660660660660

670670670670

ABCD

ABCDE

ABCDE

A

BCDEF

ABC

ABCn

ABCD

ABCD

1040

0441•it!-.

21441

004512

215

4402

1045

5401

40.13.71.5.

11 .146.190.36,38.

32.38.93.95.25.

24.12.

168.138.22.25.

23.15.

123.

99.103.17,22.

20.14,

100.91,

147,132,15.17,

0219

81855

01459

657180

250

1926

3687

4971

38202216

1352554630

2235252925

443541292212

121725

26302114

17222218

30352312

.7

.5

.3

.9

.6,7,7.6.3

.0

.6

.3

.7

.7

.8

.6

.4

.4

.9

.6

.0

.1

.7

.9

. 1

.0

.5

,8,6,1.0

.4

.0

.1

.4

1090

09

1312

21

1191

00

1517

13

31

17

111102

10

1517

191301

.7

.6

.0

.1

.8

.2

.0

.1

.2

.5

.8

.7

.9

.4

.6

.2

.7

.9

.3

.5

.3

.0

.8

.9

.1

.9

.4

.5

.6

.8

.8

.0

.4

.7

.9

0103

250oW-

34

31007

020037

8100

0049

7000

0' 0

05

37363631

2026222631

3732343530

272431303539

393233

33323436

35363639

31303844

680 30.4 32.7 l .3 33

Estimated depth m.3u be unreliable because the stronger part of the conductor may be deeper or to one side of the flisfht line* or because of 3 shallow dip or overburden effects*

PAGE 1


• CONDUCTOR BIRD FREQUENCY 4600 CTP DEPTH HEIGHT

I FLIGHT L.INE ANOMAl.Y CATEGORY INPHASE QUA [I. MHOS MTRS MTRS ------ _._---- .... - -------- --_._--- -----

3 600 A 1 40.0 38.7 1 .7 0 37 3 600 B 0 13.2 20.5 0.6 1 3b 3 600 C 4 71.1 22.3 9.0 0 3b 3 600 D 0 5.9 16.9" 0.1 3 31

3 610 A 0 11 .8 13.6 0.8 25 20 3 610 II 4 146.1 52.7 9.2 0 26 3 610 C 4 ],90.8 55.7 13.0 2 ~'I

~- •... 3 610 It 1 36.5 46.6 1 • 1 3 26 3 610 E 2 38.5 30.3 2.2 4 31

3 620 A 2 32.0 22.0 2.5 3 37 3 620 II 1 38.1 35.6 1 .8 1 3 ')

£"

3 620 C 4 93.4 25.3 11.7 0 ~4

3 620 [I 4 95.5 29.7 9.9 0 35 3 620 E 1 25.9 25.7 1.4 7 30

I 3 630 A 0 24.6 44.13 0.6 0 27

3 630 B 0 12.5 35.6 0.2 ~ 24 ... 3 6:~0 C 4 168.7 41.4 15.7 0 31

~ 3 630 [I 5 138.1 29.4 17.9 0 30 3 630 E 1 22.8 22.9 1 • :~ 3 3 C " .I

3 630 F 2 25.0 12.6 3.5 7 39

3 640 A 2 23.2 12.0 3.3 8 39 3 640 B 1 15.5 17.1 1.0 10 32 3 640 C 5 123.0 25.7 17.8 0 33

3 650 A 4 99.1 26.9 11.9 0 33 3 650 13 4 103.9 30.1 11.1 0 32 3 650 C 0 17.2 21.0 0.9 4 34 3 650 [I 2 22.6 14.5 2.4 9 36

3 660 A 1 20.3 17.8 1 .5 7 35 3 660 13 0 14.6 22.6 0.6 0 36 3 660 C 4 100.8 22.1 15.8 0 36 3 660 [I 5 91.7 18.0 17.8 0 39

3 670 A 5 147.4 30.4 19.0 0 31 3 670 [~ 4 132.9 35.0 13.4 0 30 3 670 C 0 15.7 23.1 0.7 0 38 3 670 [I 1 17.1 12.4 1.9 '5 44

3 680 A 1 30.4 32.7 1.3 1 33 I I.

Estin,ated deF,th n,.3~ be unreliable because the stronSer part f' of the conductor n,B'::t be deeper or to one side of the flight I

I line, or because of a shallow dip or overburden effects.

)

FLIGHT


LINE ANOMALY CATEGORYFREQUENCY 4600 INPHASE QUAD,

PAGE

CONIJUCTOR BIRD CTP DEPTH HEIGHT

MHO* MTRS MTRS

3333

333333

3333

333

333

33

AAAA

AAA

AAA

AA

A

680600680680

690690690690690690

700700700700

710710710

720720720

730730

740740740740

750750750

76076076Q

770770

780

BCnE

ABCDEF

ABCli

ABC

ABC

AB

ABCD

ABC

ABC

AB

A

1134

223011

3114

42A

314

31

1113

111

242

21

1

2133

105150

1059491183837

523234

128

1098974

3627

100

13524

33414292

643427

428459

12845

45

.0

.9

.0

.4

,7.8.2.9*5.6

.0,4.6.1

.2

.5,8

.0

.6

.5

.6

.4

.5

.8

.8

.0

.7,6,4

.1

.8

.8

.6

.5

,4

15394744

786036254832

21324632

256218

162928

5420

39543945

833531

362754

9856

49

.7

.1

.4

.7

.4*4.7,4.6,4

.8

.1

.1

.6

.7

.9

.2

.6

.5

.0

.0

.0

.4

.5*3.9

.7

.6

.5

.2

.8

.8

.5

.6

3

116

11

337011

511

13

143

12

41

11

71

1115

111

2Q2

31

1

,9.3.3.9

*3.9.0.8.2.9

.6

.5, 1.9

,7.4.7

.4

.3

.5

.9

.8

.2

.2

.9

.3

*4.5.2

.0

.9

.1

.4,3

.5

0310

003

1004

1000

001

500

00

10061

099

54

' 3

21

0

45282831

283028263430

36393130

333333

363631

2841

21312628

242425

282825

2226

35

Estimated depth may b e unreliable because the stronger part of the conductor may be deeper or to one side of the fjisht line* or because of a shallow dip or overburden effects.

I

i

~

!-

• I

PAGE 2


FLIGHT FREQUENCY 4600

LINE ANOMALY CATEGORY INPHASE QUAD.

GONJlUCTOr~ It I RD CTf' DEf'TH HEIGHT

MHOS MTRS MTRS

3 3 3 3

3 3 3 3 3 3

3 3 3 3

3 3 3

3 3 3

3 3

4 4 4 4

4 4 4

4 4

4

4 4

4

680 680 680 680

690 690 690 690 690 t.>90

700 700 700 700

710 710 710

720 720 720

730 730

740 740 740 740

750 750 750

760 760 760

770 770

780

------- -------- ------- -----B C II E

A It C II E F

A It C II

A It C

A B C

A [l

A Ii C II

A Ii C

A Ii C

A Ii

A

1 1 :5 4

2 3 o 1 1

3 1 1 4

4 2 4

3 1 4

3 1

1 1 1 3

1 1 1

2 4 2

2 1

1

21.0 33.9

105.0 150.4

105.7 94.8 91.2 18.9 38.5 37.t.>

52.0 32.4 34.6

128.1

109.2 89.5 74.8

36.0 27.6

100.5

135.6 24.4

33.5 41.8 42.8 92.0

64.7 34.6 27.4

42.1 84.8 59.8

128.6 45.5

15.7 1.9 39.1 1.3 47.4 6.3 44.7 11.9

78.4 3.3 60.4 3.9 36.7 7.0 25.4 0.8 48.6 1.2 32.4 1.9

21.8 5.6 32.1 1.5 46.l 1.l. 32.t.> 13.9

25.7 14.7 62.9 3.4 18.2 12.7

1t.>.t) 4.4 29.5 1.3 28.0 11.5

54.0 20.0

39.4 54.5 39.3 45.9

83.7 35.6 31.5

36.2 27.8 54.8

98.5 56.6

49. ;3

7.9 1 .8

1.2 1 .2 1 .9 5.3

1 .4 1 .5 1.2

2.0 8.9 2.1

3.4 1.3

1.5

o 3 1 o

o o 3

10 o 4

1 o o o

o o 1

5 o o

o o

10 o 6 1

o 9 9

5 4 3

2 1

o

45 28 28 31

28 30 28 26 34 30

3b 39 31 30

33 33 33

36 36 31

28 41

21 31 26 28

24 24

28 28 25

22 26

3 c · -,

Estimated depth ma~ be unreliable because the stron~er part of the conductor ffia~ be deeper or to one _side of the f]i~ht line, or because of a shallow dip or overburden effects.


FLIGHT LINE ANOMALY CATEGORYFREQUENCY 4600 INPHASE QUAD,

PAGE


MHOS MTRS MTRS

A

A4

44

A4

44

4

44

4444

44444

444444

44444

444

780

790790

800800

810810

820820

830830830

840840840840

850850850850850

860860860860860860

870870870870870

880880880

H

AB

AB

AB

AB

ABC

ABCn

ABCDE

ABCDEF

ABCBE

ABC

3

9

4

4i

2

3

42

150

2251

05401

056101

21140

002

120,9

66. 1120.8

108.364.6

62.2107.9

185.452.8

49.1246.064.8

64.294.1

204.249,2

40.8285.4227.527,741 .4

43,2305.4477.138.514, 125.2

61.015.442,4159.9

3,6

6.22.8

22.5

59,0

59.240.2

36,844.4

55.643.8

60.348.4

58.354.3120.8

54,095,146.073.7

66.875,167.958.144.3

70.658,666.251,916.630.7

48. 115.845.244.911,1

8.013.315,1

5.9

2.29.7

9,13,1

2.27.2

11.22.0

1 ,420,00,9

2.42.218,5

l . 0

0.916,613.30.51 .5

0.925.544.01,10,91 .1

2.61 .11.5

13.00.1

0.50.02.3

0

00

00

00

00

000

4000

00008

3202

140

7212

' 0

10

2027

27

3030

3436

3131

2932

282424

25262428

2824242722

211920252935

2323282728

342938

Estimated depth mau be unreliable because the stronger part of the conductor may be deeper or to one side of the flisht line* or because of a shallow dip or overburden effects.

• I

!

I

~

PAGE 3


FLIGHT FREGUENCY 4600

LINE ANOMALY CATEGORY INPHASE GUAD.

CONIIUCTOR DIr,D CTP DEPTH HEIGHT

MHOS MTRS MTRS

4

4 4

4

4

4

4

4

4

4

4 4

4 4 4 4

4 4 4 4 4

4 4 4 4 4 4

4 4 4 4 4

4 4 4

780

790 790

BOO 800

810 810

B20 B20

830 B30 830

840 B40 B40 840

B50 850 850 B50 850

B60 860 B60 B60 B60 860

870 870 870 B70 870

BBO 880 8BO

A II

A

B

A [~

A B C

A B C

D

A B C [I

E

A II C [I

E r

A B C [I

E

A B C

3

2 4

4

2

3

4

2

1

5 o

2 2 5 1

o 5 4 o 1

o 5 6 1 o 1

2 1 1 4 o

o o 2

120.9 59.0 5.('? 0 27

66.1 120.8

59.2 40.2

2.2 0 30 9.7 0 3()

108.3 36.8 9.1 64.6 44.4 3.1

62.2 55.6 2.2 107.9 43.8 7.2

185.4 60.3 11.2 52.8 . 48.4 2.0

49.1 58.3 1.4 246.0 54.3 20.0 64.8 120.8 0.9

64.2 94.1

204.2 49.2

40.0 2B5.4 227.5

27.7 41.4

43.2 305.4 477.1 38.5 14. 1 25.2

61.0 15.4 42.4

159.9 3.6

22.5

54.0 2.4 95.1 2.2 46.0 18.5 73.7 1.0

66.8 0.9 75.1 16.6 67.9 13.~5

58.1 0.5 44.3 1.5

70.6 0.9 58.6 25.5 66.2 44.0 51.9 1.1 16.6 0.9 30.7 1.1

48.1 2.6 15.8 1.1 45.2 1.5 44.9 13.0 11.1 0.1

0.0 0.5 13.3 0.0 15.1 2.3

o o

o o

o o

o o o

4 o o o

o o o o 8

3 2 o 2

14 o

7 21

2 . 0 10

20 2 7

34 36

31

31

29 32

28 24 24

25 26 24 28

28 24 24 27 22

21 19 20 25 29 35

23 23 2B 27 28

34 29 313

Estimated depth may be unreliable because the stron~er pal·t of the conductor may be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.


FLIGHT LINE ANOMALY CATEGORYFREQUENCY 4600 IHPHASE QUAD.

PAGE

CONBUCTOR B1RB GTP DEPTH HEIGHT

MHOS MTRS MTRS

44AA4

A4444444

44444

4444

4444444

44444444

44

880880800800880

890890890890890890890890

900900900900900

910910910910

920920920920920920920

931931931931931931931931

940940

DEFGH

ABCDEFGH

ABCDE

ABCD

ABCEiEFG

ABCBEFGH

AB

56111

116's

i003

31015

0504

4010441

23123005

30

145150381331

2248

14819420103967

331568

138

30922698

9218143

18010241

546546

1151471027

227

4121

.5

.4

.4-

.0

.4

.1

.5,5.8.2.6.1 '

,4

.4

.9

.5

.0

.9

.4

.6,644

.6, 1.9.2.7.2.3

.5

.3

.9

.3,5.4.9.8

.3

.9

2617371228

2651193524267527

91776

28

44194635

2628126

482749

3336667679335755

2031

.6

.6

.0

.7

.3

.2

.8

.3

.7

.0

.3

.3

.1

.9

.7

.4

.8

.0

*5.7.3.0

.8

.8

.6

.5

.8

.1

.0

.5

.0

.6

.5

.1*3.3.3

.9

.5

2240

111

11

3524

1006

7101

19

01608

10010

1412

1

3413500

17

40

.2

.5

.7

.1

.7

.0

.6

.1

.0

.0

.2

.7

.4

.7

.0

.7,1.3

*9.1,7.4

,7.6.4.2.2.4.3

,4.2,1.9.6.2.5,3

.1

.8

008

171

9510

1580

14

130

24300

2100

11

60

2021020

1311320

' 0

04

80

2930253135

2724272522232520

3244323030

27232719

25382832262929

2121222324282919

3036

Estimated depth may be unreliable because the stronger part of the conductor may be deeper or to one side of the flight line* or because of a shallow dip or overburden effects*

PAGE 4


• CONDUCTOR BIRIt Ff,EGUENCY 4600 CTP nEPTH HEIGHT

FLIGHT LINE AIWMALY CATEGORY INPHASE GUAn. MHOS HTRS MTI~B -- ... ~-- .. - .. _------ -------_ .. ------- ... _---

4 880 [I 5 145.5 26.6 22.2 0 29 4 880 E 6 150.4 17.6 40.5 0 30 4 BBO F 1 38.4' 37.0 1 .7 B .,.., r.

<. J

4 880 G 1 13.0 12.7 1.1 17 31 4 880 H 1 31.4 28.3 1 .7 1 3:-5

4 890 A 1 22.1 26.2 1 .0 9 27 4 890 B 1 48.5 51.8 1.6 C"

,J 24 4 890 C 6 148.5 19.3 35.1 1 27 4 B90 [I 5 194.8 35.7 24.0 0 25 4 890 E 1 20.2 24.0 1 .0 15 22 4 890 F 0 10.6 26.3 0.2 8 23 4 890 G 0 39.1 75.3 0.7 0 25 4 890 H 3 67.4 27.1 6.4 14 20

4 900 A 3 33.4 9.9 7.7 13 32 4 900 B 1 15.9 17.7 1 .0 0 44

I 4 900 C 0 6.5 7.4 0.7 24 32 4 900 II 1 B.O 6.8 1 • 1 30 30 4 900 E 5 138.9 28.0 19.3 0 30

~ 4 910 A 0 30.4 44.5 0.9 "1 27 <.

4 910 B 5 92.6 19.7 16.1 10 23 1\ 910 C 0 26.6 46.3 0.7 0 27 4 910 [I 4 98.4 35.0 8.4 1 1 19

4 920 A 4 92.6 26.0 10.7 6 "1 c.-L .J

4 920 .B 0 18.1 28.8 0.6 0 38 4 920 C 1 14.9 12.6 1.4 20 28 4 920 D 0 3.2 6.5 0.2 21 32 4 920 E 4 180.7 48.8 14.2 0 26 4 920 F 4 102.2 27.1 12.4 2 29 4 920 G 1 41.3 49.0 1.3 0 29

4 931 A 2 54.5 33.5 3.4 13 21 4 931 B 3 65.3 36.0 4.2 11 21 4 931 C 1 46.9 66.6 1 • 1 3 22 4 931 [I 2 115.3 76.5 3.9 "1 ,,- 23 4 931 E 3 147.5 79.1 5.6 0 24 4 931 F 0 10.4 33.3 0.2 . 0 28 4 931 G 0 27.9 57.3 0.5 0 29 4 931 H 5 227.8 55.3 17.3 4 19

4 940 A 3 41.3 20.9 4.1 8 30

I. 4 940 B 0 21.9 31.5 0.8 0 36

Esti nlated depth nla!:' be unreliable because the stronger part of the conductor nla!:' be deeper or to one side of the flight line, or becalJse of a shallow dip or overburden effects.

J

PAGE


FLIGHT LINE ANOMALY CATEGORYFREQUENCY 4600 INPHASE QUAD.

CONDUCTOR BIRDCTP DEPTH HEIGHT

MHOS MTRS MTRB

4AA

AAAAAAA

AAAAAA

AAAAAA

AAAAAA

AAAAA

AAAAA

940940940

950950950950950950950

961961961961961961

970970970970970970

980980980980980980

990990990990990

10001000100010001000

CDE

AKCDEFG

ABCDEF

ABCHEF

ABCDEF

ABCDE

ABCDE

342

3253213

212356

564103

101263

16420

02300

88.972.935.1

84.790.8

294.6156.345.237.551,1

28.821.358.976.3

126.8141 .3

171.8183.285.037.423.649.2

35.216.726.453.0

247.684.9

41.2275.4130.145.216.4

10.348.928.913.83.2

42.123.922.2

32.678.759.2

101 .139,150.023.7

17,226.440.430.422.718.6

34.018,629.738.038.825,5

30.532,931 .134,021,235,3

46.336.941 .332.123.4

12.427.09.2

19,15,4

5.68.52.9

7.22.6

23.84.52.11 .14.9

2.91,03.16.7

22,034.0

20.951 .78,21.60.74.2

1.90.41 .13.2

70.66.5

1 .439,810.52.70.7

0.73,86.70.70,2

005

621050

15

802200

003006

602800

40324

112

152

30

323435

26242122273322

344230313128

263029343530

303332263131

2525243333

3634323728

1010 o 9.6 18.! 0.4 17 20

Estimated depth may be unreliable because the stronger part of the conductor may be deeper or to one side of the flight linet or because of 3 shallow dip or overburden effects.

• !

• J

PAGE 5


FLIGHT FREOUENCY 4600

LINE ANOMALY CATEGORY INPHASE QUAn.

CONrIUCTor~ B I HI! CIP DEPTH HEIGHT

MHOS MTRS MTRS

4 4 4

4 4 4

4 4

4 4

4 4 4 -1 4 4

4 4 4 4

4 4

4 4 4 4 4 4

4 4 4 4 4

4 4 4 4 4

4

940 940 940

950 950 950 950 950 950 950

96l 961 961 961 961 961

970 970 970 970 970 970

980 980 980 980 980 980

990 990 990 990 990

1000 1000 1000 1000 1000

1010

c [I

E

A B C [I

E

F G

A

B C [I

E F

A [l

C [I

E

F

A B C II E F

A B C [I

E

A B C [I

E

A

3 4 2

3 2 5 3 2 1 3

2 1 2 3 t.oJ

6

5 6 4 1 o 3

1 o 1 2 6 3

1 6 4 2 o

o 2 3 o o

o

88.9 72.9 35.1

84.7 90.8

294.6 156.3 45.2 37.5 51.1

28.8 21.3 58.9 76.3

126.8 141.3

171.8 183.2 85.0 37.4 23.6 49.2

16.7 26.4 53.0

247.6 84.9

41.2 275.4 130.1

45.2 16.4

10.3 48.9 28.9 13.8 3.2

42.1 5.6 23.9 8.S 22.2 2.9

32.6 7.2 78.7 2.6 59.2 23.8

101.1 4.5 39.1 2.1 50.0 1.1 23.7 4.9

17.2 2.9 26.4 1.0 40.4 3.1 30.4 6.7 22.722'<) 18.6 34.0

34.0 20.9 18.6 51.7 29.7 8.2 38.0 1.6 38.8 0.7 25.5 4.2

30.5 1.9 32.9 0.4 31.1 1.1 34.0 3.2 21.2 70.6 35.3 6.5

46.3 1.4 36.9 39.8 41.3 10.5 32.1 2.7 23.4 0.7

12.4 0.7 27.0 3.8 9.2 6.7

19.1 0.7 5.4 0.2

18.5 0.4

o o

1 o 5 o

1 ~j

8 o 2 2 o o

o o ~5

o o 6

6 o 2 8 o o

4 o 3 2 4

11 2

15 2

30

17

32 34 3~)

26 24 21 22 27 33 22

34 42 30 31 31 28

26 30 29 34 35 30

30 33 32 26 31 31

25 25 24 33 33

36 34 32 37 28

20

Estimated depth may be unreliable because the stron~er part of the conductor may be deeper or to one side of the flisht line, or because of a shallow dip or overburden effects.

PAGE


FLIGHT LINE ANOMALY CATEGORYFREQUENCY 4600 INPHASE QUAD,

CONDUCTOR BIRD CTP DEPTH HEIGHT 1HQS MTRS MTRB

4AAA

AAAAA

AAAAAA

5555

55555

5555

55

555

55

1010101010101010

10211021102110211021

103010301030103010301030

1040104010401040

10501050105010501050

1060106010601060

10701070

108010801080

10901090

BCDE

ABCDE

ABCDEF

ABCD

ABCliE

ABCD

AB

ABC

AB

1310

13060

066032

0165

54100

0003

30

001

31

25253222

226115

29813

12327348208658

1117

172139

1201002458

77

1860

7114

79

41

4429

.7

.0

.2

.2

.1

.9

.6

.8,2

.8,9.5.8.2.6

.8

.2

.9

.4

.1

.0

.2

.1

.2

,9.4.3.7

,8.0

.9

.8

.1

.6

.6

33103532

2323243722

233243363245

13152123

2226191212

10172224

3222

16li59

2228

.9

.7

.8

.8

.2

.7

.6

.6

.2

.2,2.3.7.4.7

.4

.5

.4

.7

.0

.2,0.5. 1

.3

.0

.3

.8

,8.3

.0

.7

.5

.3

.0

1410

1

60

440

06346072

01

3924

2112

100

0006

50

001

41

.0

.3

.3

.8

.2 6.6.2.5

.4

.3

.9

.6,5,6

.9

.4

.0, 1

.0

.5

.9

.2

.5

.6,2.9.0

.5,6

.3,7.0

,2,6

4225

. 2

4

1006

6

00235

11700

009

1119

26850

06

12220

139

28252730

3434382329

292225272825

35373034

3132322926

23283339

3430

262630

2527

1100 28,3 20,1 2.3 12 29

Estimated depth may be unreliable because the stronger F-art of the conductor mey be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

J

• I

•

r-'AGE 6




CONDUCTOR B1RD CTF' DEPTH HElGHT

MHOS MTRS MTRS

4 4 4 4

4

4 4 4 4

4

4 4 4 4 4

5 5 ::; 5

5 5 5 5 5

5 ::; 5 ::;

5 ::;

5 ::; 5

5

5

5

1010 1010 1010 1010

1021 1021 1021 1021 1021

1030 1030 1030 1030 1030 1030

1040 1040 1040 1040

1050 1050 1050 1050 1050

1060 1060 1060 1060

1070 1070

1080 1080 1080

1090 1090

1100

------- -------- ------- -----It C [t

E

A

It C II E

A

It C [I

E F

A B C [I

A It C [I

E

A It C [I

A B

A B

C

A

II

A

1 3 1 o

1

3 o 6 o

o 6 6 o 3 :2

o 1 6 5

5 4 1 o o

o o o 3

3 o

o o 1

3 1

2

25.7 25.0 32.2 22.2

61.9 15.6

298.8 13.2

12.8 327.9 348.5

20.8 86.2 58.6

11 • B 17.2

172.9 139.4

120.1 100.0 24.2 5.1 8.2

7.9 7.4

18.3 60.7

71.8 14.0

7.9 9.8

41.1

44.6 29.6

,28.3

33.9 1.0 10.7 4.3 35.8 1.3 32.8 0.8

23.2 1.2 23.7 6.l) 24.6 0.6 37.6 44.2

23.2 0.4 32.2 6~~.:~

43.3 46.9 36.7 0.6 32.4 7.5 45.7 2.6

13.4 0.9 15.5 1.4 21.4 39.0 23.7 24.1

22.0 26.2 19.0 12.5 12.1

10.3 17.0 22.3 24.8

32.8 22.3

16.0 11 .7 59.5

22.3 28.0

20.1

21 .0 12.5

1 .9 0.2 0.5

0.6

0.6

0.3 0.7 1.0

4.2 1.6

4 22

5 2

4 1 o o 6

6

o o 2 3 c' .,J

11 7 o ()

o o 9

11 19

26 B

o

o 6

12 22

13 9

12

2El 25 27 30

34 34 3B 23 29

29 22

27 28

35 3'7 30 34

31 32 32 29 26

23

28 33 39

34 30

26 26 30

25 27

29

Estiffiated depth ffiay be unreliable because the stron~er part of the conductor ffiay be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.


FL.IGHT LINE ANOMALY CATEGORYFREQUENCY 4600 INPHASE QUAD.

PAGE


MHOS MTRG HTRS

5

5555

555

5555

55

5

5

5

5

5

55

55

55

55

55

5

1100

1110111011101110

112011201120

1130113011301130

11401140

1150

1160

1170

1180

1190

12001200

12101210

12201220

12301230

12401240

1250

B

ABCD

ABC

APCD

AB

A

A

A

A

A

AB

AB

AB

AB

AB

A

2

0431

152

0600

00

0

0

0

2

2

01

11

11

11

10

0

17,2

37,6174,876,314,6

9,583.337,5

10.981 .110.29,1

10.36,4

8,2

13,0

19.4

35.5

29,2

44.634,9

35,137,6

53.647.9

32,843.8

30.616,3

15.4

10.7

66,156.132.714.2

6.411.521 .0

11 .69.119.314.3

17,911 ,1

8,8

14.4

24,4

23.2

18.7

72,837,2

40,451.2

52.747,3

32.341.0

31 .229*8

34.6

2.3

0.811.26.11 .2

1.727.63,4

0.936.20.40.5

0,40,3

0.8

0,9

0.9

2.8

2.7

0.91 .4

1.31 . 1

1.91.8

1.61.8

1 .40.5

0.4

23

017

11

2187

17868

617

24

17

10

10

9

02

00

00

1*0

101

0

27

28242635

402632

32273134

3228

29

28

27

29

33

3030

3135

3430

3334

2430

29

Estimated depth may be unreliable because the stronger part of the conductor may be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

PAGE 7

e J8516 CENTRE ANOMALY LIST -. CONDUCTOR BIRD FREQUENCY 4600 CTF' DEPTH HEIGHT

FLIGHT LINE AtWMAL Y CATEGORY INPHASE QUAD. MHOS MTRS MH,S ------ ..... - .. --_ .... - ... _------ _._----- -----

5 1100 r~ 2 17.2 10.7 2.3 23 27

5 1110 A 0 37.6 66.1 0.8 0 28 5 1110 r~ 4 174.8 56.1 11.2 1 24 5 1110 C 3 76.3 32.7 6.1 7 26 5 1110 D 1 14.6 14.2 1.2 11 3~j

5 1120 A 1 9.5 6.4 1.7 21 40 5 1120 B 5 83.3 11.5 27.6 B 2l) 5 1120 C ..,

~- 37.5 21.0 3.4 7 32

5 1130 A () 10.9 11 .6 0.9 17 32 5 1130 B 6 81.1 9.1 36.2 8 27 5 1130 C 0 10.2 19.3 0.4 6 31 5 1130 [I 0 9.1 14.3 0.5 8 34 t::" 1140 ,J A 0 10.3 17.9 0.4 (, 3'")

~-

I 5 1140 Il 0 6.4 1 1 • 1 0.3 17 28

5 1150 A 0 8.2 8.8 0.8 24 29 ,- 5 1160 A 0 13.0 14.4 0.9 17 28

5 1170 A 0 19.4 24.4 0.9 10 27

5 1180 A 2 35.5 23.2 2.8 10 29

5 1190 A 2 29.2 18.7 2.7 9 33

5 1200 A 0 44.6 72.8 0.9 0 30 5 1200 B 1 34.9 37.2 1 .4 2 30

5 1210 A 1 35.1 40.4 1.3 0 31 5 1210 II 1 37.6 51.2 1 • 1 0 3 c -.J

5 1220 A 1 53.6 52.7 1.9 0 34 5 1220 n 1 47.9 47.3 1.8 0 30

5 1230 A 1 32.8 32.3 1.6 1 33 5 1230 B 1 43.8 41.0 1.8 '0 34

5 1240 A 1 30.6 31.2 1 .4 10 24 5 1240 B 0 16.3 29.8 0.5 1 30

5 1250 A 0 15.4 34.6 0.4 0 29 - Est i alated depth ala~ be IJ r, reI i a b 1 e because the stronSer part of the condlJctor Ifla~ be deeper or to or,e side of the flight line, or because of a shallow dip or ove rblJ rden effects.


CONDUCTOR BIRDFREQUENCY 4600 CTP DEPTH HEIGHT

FLIGHT LINE ANOMALY CATEGORY INPHASE QUAD* MHOS MTRS MTRS

5

5

5

5C" *J

55

5

5

6

6

6

6

6

6

6

6

6

1250

1260

1270

12801280

12901290

1300

1310

1320

1330

1340

1350

1360

1370

1380

1390

1400

B

A

A

AB

AB

A

A

A

A

A

A

A

A

A

A

A

1

1

2

10

10

0

1

1

2

3

2

2

2

1

2

2

32

42

35

3039

7014

17

21

19

52

48

31

44

66

22

34

34

.5

.6

.6

.6

.1

.7*5

.8

.8

.6

.3

.7

.2

.0

,0

.2

.1

.0

37

38

24

3168

8525

29

24

17

36

23

20

35

39

17

28

25

.8

.7

.3

.7

.9

.3

.6

,0

.5

.5

.0

.8

.2

.4

.8

.6

.6

.8

1 .

1 .

2*

1.0.

1 .0.

0,

1 ,

1 ,

2,

4.

2,

2.

3.

1 ,

2.

2,

2

9

6

48

65

6

1

5

9

5

7

3

7

8

0

2

10

B

3

20

07

5

8

12

5

1

5

3

3

5

3

2

22

25

35

3229

2726

27

29

30

28

36

35

30

29

38

33

35

Estimated depth may be unreliable beceuse the stronger pert of the conductor may b e deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

PAGE a

e J8516 CENTRE ANOMALY LIST

• CONDUCTOR BIRD FREQUENCY 4600 crr ItEPTH HEIGHT

I FLIGHT LINE ANOMALY CATEGORY INPHASE QUAD. MHOS MTRS MTRS .. - ..... _--- ------- -------- ------- -----

<=" 1250 B 1 32.5 .J 37.8 1 .2 10 22

5 1260 A 1 42.6 38.7 1 .9 B 25

5 1270 A 2 35.6 24.3 2.6 3 3!,j

5 1280 A 1 30.6 31.7 1 • 4 2 32 5 1280 B 0 39.1 68.9 0.8 0 29 c· 1290 A 1 J 70.7 85.3 1 .6 0 27 .,.. J 1290 B 0 14.5 25.6 0.5 7 2b

5 1300 A 0 17.8 29.0 0.6 5 27

r- 1310 A 1 21.8 24.5 1 • 1 8 29 J

6 1320 A 1 19.6 17.5 1 c· • .J 12 30

I 6 1330 A 2 52.3 36.0 2.9 r-,J 28

I-6 1340 A 3 48.7 23.8 4.5 1 36

6 1350 A "') 31.2 20.2 2.7 L:" 35 ~- .J

6 1360 A 2 44.0 35.4 2.3 3 30

6 1370 A 2 66.0 39.8 3.7 3 29

6 1380 A 1 22.2 17.6 1 .8 t.-.J 38

6 1390 A 2 34.1 28.6 2.0 3 33

6 1400 A 2 34.0 25.8 2.2 2 35

Est i Ria ted depth Rla~ be unreliable because the stronSer part of the conductor nla~ be deeper or to one side of the flisht line, or because of a shallow dip or overburden effects.

J

PAGE

FLIGHT

J8516 CENTRE ANOMALY LIST CLOW FREQ3


LINE ANOMALY CATEGORY INPHASE QUAD, MHOS MTRS MTRB

3333

33333

33333

333333

333

3333

3333

3333

600600600600

610610610610610

620620620620620

630630630630630630

640640640

650650650650

660660660660

670670670670

ABCD

ABCDE

ABCDE

ABCDEF

ABC

ABCD

ABCD

ABCD

2040

35402

20553

o

06503

305

5503

2056

5503

102

40-0

5879239

94

545811

70

116913

10

70

80

605928

62

6566

968326

.6

.2

.3

.3

.5

.5

.8

.3

.0

.3,9.6,2,7

.6,9.5,6.5.3

.5

.9

.5

.3

. 1

.4

.4

.1

.6

.7,0

,6.2.7.3

164

252

447821514

12

1432279

127

404199

75

34

283478

76

2922

454476

. 1

.9 3.7

.8,2,4, 1.6

,3.5.5.7.7

.2

.8

.6

.8

.5

.8

.7

.3

.0

.8

.4

.4,3

.9

.2

.4

.9

.7

.0

.0

.2

20

150

4231202

30

17246

20

442905

40

31

241804

20

2738

282304

.8,7,1.0

,7.5.7.3.4

.3

.7,9.4.8

.3

.0

.6

.5

.7

.4

.2

.0

.3

.5

.9

.4,7

.8

.7

.4, 1

,6.7.6.2

32020

47334

10

9400

23

187007

13

1790

21

1019

191500

0- o1018

37363631

2026222631

3732343530

272431303539

393233

33323436

35363639

31303844

680 5,8 12,2 1,3 33

Estimated depth may be unreliable because the stronger F-srt of the conductor may be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

J

i

• 1

•

PAGE 1

J8516 CENTRE ANOMALY LIST [LOW FREQ]

FLIGHT LINE ANOMALY CATEGORY FREQUENCY INPHASE

932 QUAD.

CONflUCTOR IllfW CTP DEPTH HEIGHT

MHOS MTRS MTRS

3 3 3 3

3

3 3 3 3

3

3 3 3 3

3

3 3 3 3 3

3 3 3

3 3 3 3

3 3 3 3

3 3 3 3

3

600 600 600 600

610 610 610 610 610

{,20 620 620 620 620

630 630 630 630 630 630

640 640 640

650 650 650 650

660 660 660 660

670 670 670 670

680

A II C [I

A

Ii C [I

E

A

II C D [

A II C [I

E r

A II C

ti B C [I

A II C [I

A 11 C D

A

"'l ~ .. o 4

o

3

5 4 o 2

2

o 5 5 3

'1 "-o 6 5 o 3

3 o 5

c· ..J

5 o 3

2 o 5 6

5 5 o 3

1

10.6

40.3 -0.3

87.5 92.8 3.3 9.0

9.3 4.9

54.6 58.2 11.7

7.6 0.9

116.5 91.6

10.3

7.5 0.9

80.5

60.3 59.1

2.4 8.4

6.1 2.6

65.7 66.0

96.6 83.2 2.7 6.3

5.8

16.1 2.8 4.9 0.7

25.3 15.1 2.7 0.0

4.8 4.7 47.2 23.5 82.4 12.7 15.1 0.3 14.6 2.4

12.3 3.3 14.5 0.7 32.5 17.9 27.7 24.4 9.7 6.8

7.8 0.0 40.6 44.6 41 .8 2·9.5 9.5 0.7 9.8 5.4

7.7 4.2 5.3 0.0

34.0 31.3

28.8 24.5 34.4 18.9 7.4 0.4 8.3 4.7

7.9 2.8 6.2 0.7

29.4 27.4 22.9 38.1

45.7 28.6 44.0 23.7 7.0 0.6 6.2 4.2

12.2 1.3

3 20

2 o

47 3 3 4

10

9

4 o o

23

18 7 o o "7

13

17 9 o

~,

~ .

1 10 19

19 15 o o

o o

10 18

9

3i' 36 36 31

20 26 22 26 31

37

32 34 3~

30

27 24 31 30 3~:i

39

39 32 33

33 32 34 36

35 36 36 39

31 30 38 44

33

Estiffiated depth ffiay be unreliable because the stron~er part of the conductor ffi2Y be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

PAGE

FLIGHT

J8516 CENTRE ANOMALY LIST CLOU FREG3

CONDUCTOR BIRDFREQUENCY 932 GTP DEPTH HEIGHT

LINE ANOMALY CATEGORY INPHASE QUAD. MHOS MTR5 MTRB

3333

333333

3333

333

333

33

AAAA

AAA

AAA

AA

680680680680

690690690690690690

700700700700

710710710

720720720

730730

740740740740

750750750

760760760

770770

BCDE

ADCDEF

ABCD

ABC

ABC

AB

ABCD

ABC

ABC

AB

21A5

344111

3215

545

434

42

2224

223

242

21

6.37.3

45.687.9

39.344.348.64.79.38.0

22.49.08.4

82.2

67.335.644.8

17.211 .353.7

61 ,97. 1

11.910.215.544.6

15.212.312.2

12.245.915.2

32.89.8

8.114.941 .449.7

43.934.833, 18.9

18.115.3

21 .113.516.540.8

36.733.826.2

14.010,638.0

52.910.0

14.919.120.937,0

31.717.512.7

18.632,926.7

56,321.8

2.91 .69.8

22. 1

7.111 .714.5

1 .41.91 .8

7,32.71 ,8

25.6

21 .48,517.2

8.05.7

14,2

11.72.6

3.92.13.9

10.9

2.13.35.1

3.013.32,7

3.81.6

91140

irf,.47

2239

4A70

014

10151

1a

236

135

51622

116

- 8

47

452821331

283028263430

36393130

333333

363631

2841

2.1312628

242425

282825

2226

780 8,9 19,3 l .6

Estimated depth may be unreliable because the stronger part of the conductor may be deeper or to one side of the flight line* or because of a shallow dip or overburden effects,

I • I

PAGE 2

J8516 CENTRE ANOMALY LIST [LOW FREOJ


932 QUArt.

CONDUCTOr:: III RD eTP DEPTH HEIGHT

MHOS MTR5 MTRS

3 3 3 3

3 3 3 3 3 3

3 3 3 3

3 3 3

3 3 3

3 3

4 4 4 4

4 4 4

4 4 4

4 4

4

680 680 680 680

690 690 690 690 690 690

700 700 700 700

710 710 710

720 720 720

730 730

740 740 740 740

750 750 750

760 760 760

770 770

780

[-I

C [I

E

A [I

C D E r

(-t

II C [I

A

II C

A B C

A II

A B C It

A B C

A B C

A II

A

2 1 4 5

3

4 4 1 1 1

3 2 1 5

5 4 5

4 3 4

4 2

2 2 2 4

2 2 3

2 4 2

2 1

1

6.3 7.3

45.6 87.9

39.3 44.3 48.6 4.7 9.3 8.0

22.4 . 9.0 8.4

82.2

67.3 35.6 44.8

17.2 11.3 53.7

61.9 7.1

11.9 10.2 15.5 44.6

15.2 12.3 12.2

12.2 45.9 15.2

32.8 9.8

8.9

8.1 2.9 14.9 1.6 41.4 9.8 49.7 22.1

43.9 7.1 34.8 11.7 33.1 14.5 8.9 1.4

18.1 1.9 15.3 1.0

21.1 7.3 13.5 2.7 16.5 1.8 40.8 25.6

36.7 21.4 33.0 8.5 26.2 17.2

14.0 0.0 10.6 5.7 38.0 14.2

52.9 10.0

14.9 19.1 20.9 37.0

31.7 17.5 12.7

18.6 32.9 26.7

56.3 21.8

19.3

11 .7 2.6

3.9 2.1 3.9

10.9

2.1 3.3 5.1

3.0 13.3 2.7

3.8 1.6

1 .6

9 11

4 o

4 7

22

4 4 7 o

o 1 4

10 15

1

1

8

23 6

13 5

5 16

11 6

-8

4 7

o

20

30 2B 26 34 30

3('

39 31 30

36 36 31

28 41

21 31 2l, 28

24 24 '"It.:' (I.. ~J

28 28 25

22 26

3~i

Estimated depth ma~ be unreliable because the stron~er part of the conductor ffiBY be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

PAGE

J8516 CENTRE ANOMALY LIST CLOW FREGD

FREQUENCY 932 FLIGHT LINE ANOMALY CATEGORY INPHASE QUAD,


MHOS MTRS MTRS

A

AA

AA

AA

AA

AAA

AAAA

AAAAA

AAAAAA

AAAAA

AAA

780

790790

BOO800

810810

820820

830830830

840840840840

850850850850850

860860860860860860

870870870870870

880880880

B

AB

AB

AB

AB

ABC

ABCD

ADCDE

ABCDEF

ABCDE

ABC

4

35

53

25

42

150

2061

05502

166222

32250

403

47,6

19,068.3

58.919.8

16,958.2

89,213.0

9.0157.3

2,7

18.69.8

135.57.6

6,5169.1135,0

3.313.8

9.2208.8332.2

9.14.37.6

27.35.79,7

95.6-0.6

3.0-3. 18.6

51.0

26.544.8

37.0. 24.6

24.537. 1

71 .821 .3

20.984.933.0

30.436,358,921 .8

18.594.379.414.622.2

19.996.3

142.315.65.010.4

27.85.7

17,251.91.9

1 .33.39.2

8,0

4,116.9

17.14.8

3.716.7

14.22.8

1.427.90.0

3.20.8

35.21 .0

0.927.424.00.32.9

1.636.946.22.22.82.8

7,13.92,2

23.90,0

10.20.04.2

1

41

00

41

04

600

7023

5014

14

1430

153613

134011 1

0

660

15

27

3030

3436

3131

2932

282424

25262428

2824242722

211920252935

2323282728

342938

Estimated depth may be unreliable because the stronger part of the conductor msy be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

• I

PAGE: 3

J8516 CENTRE ANOMALY LIST [LOW FREQJ




MHOS MTRS MTRS

4

4 4

4

4

4

4

4 4

4 4 4

4 4 4 4

4 4 4 4 4

4 4 4 4 4 4

4 4 4 4 4

4 4 4

780

790 790

BOO 800

810 810

820 820

830 830 830

840 840 840 840

850 850 850 850 850

860 860 860 860 860 860

870 870 870 870 870

880 BBO 8BO

A I.l

A [-I

A I.l

A

D

A D C

A II C II

A [I

C [I

E

A B C D E F

A D C [I

E

A B C

4

3 5

5

3

2 5

4 2

1 5 o

2 o 6 1

o 5 5 o 2

1 6 6 2 2 2

3 2 2 5 o

4 o 3

47.6

19.0 68.3

58.9 19.8

16.9

89.2 13.0

9.0 157.3

2.7

18.6 9.8

135.5 7.6

6.5 169.1 135.0

3.3 13.8

9.2 208.8 332.2

9.1 4.3 7.6

27.3 5.7 9.7

95.6 -0.6

3.0 -3.1 8.6

51.0 8.0

26.5 4.1 44.8 16.9

37.0 17.1 ,24.6 4.8

24.5 3.7 37.1 16.7

71.8 14.2 21.3 2.9

20.9 1.4 84.9 27.9 33.0 0.0

30.4 3.2 36.3 O.B 58.9 35.2 21.8 1.0

18.5 0.9 94.3 27.4 79.4 24.0 14.6 0.3 22.2 2.9

19.9 1.6 96.3 36.9

142.3· 46.2 15.6 2.2 5.0 2.8

10.4 2.8

27.8 7.1 5.7 3.9

17.2 2.2 51.9 23.9 1.9 0.0

1.3 10.2 3.3 0.0 9.2 4.2

1

4 1

o o

4 1

o 4

6 o o

7 o 2 3

5 o 1 4

14

14 3 o

15 36 13

13 40 11 . 1 o

66 o

15

27

30 30

34 36

31 31

29 32

28 24 24

26 24 28

21 19 20 25 29 35

23 23 28 27 28

34 29 38

Estiffiated depth ffiBW be unreliable because the stron~er part of the conductor ffiBY be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

PAGE

FLIGHT

J8516 CENTRE ANOMALY LIST CLOU FREQ3

LINE ANOMALY CATEGORYFREQUENCY 932 INPHASE QUAD.


MHOS MTRS M-TRB

AAAAA

AAAAAAAA

AAAAA

AAAA

AAAAAAA

AAAAAAAA

AA

880880880880880

890890890890890890890890

900900900900900

910910910910

920920920920920920920

931931931931931931931931

940940

DEFGH

ABCDEFGH

ABCHE

ABCD

ABCDEFG

ABCDEFGH

AB

56342

32650015

41015

1604

4000562

34154005

30

98.0114.511.76.2

10.1

7.811,2

113.9127.20.2

-5.1

8.840.4

19.13.60.01 .3

84.3

6.567.14.2

50.4

50.82.62.3

-0.8

103. 173.710.8

23.030.811 .368.357.2-0.52.1

130.1

16.02,0

43.336.914.43.812.4

7.819,035.661.99.78.6

19,222.6

11 .05.41 .B1 .8

45. 1

14.021 .712.641 .2

39,37.56.61.0

68,527.517.8

24.427.323,238.959.76.5

14.696,2

16.29.2

31.349.14.00.13.7

4.52.5

51 .029,90.00.01.6

17.6

13,31 .80.01.1

23,5

1 .441,90.7

11 .6

12,50.50,50.018,935.82.6

6.38.81.9

20.38.80.00.117.8

5.80.2

10

194212

30132200

1018

18160

600

13121012

77

20004

10

17151293

o05

130

2930253135

2724272522232520

3244323030

27232719

25382832262929

2121222324282919

3036

Estimated depth may be unreliable because the stronger f sf-i, of the conductor may be deeper or to one side of the flisht line* or because of a .shallow dip or overburden effects.

• I

PAGE 4

J8516 CENTRE ANOMALY LIST CLOW FREOJ

FLIGHT LINE ANOMALY CATEGORY FREOUENCY INf'HASE

932 (WAn.

CONnUCTor~ III RD CTP [IEf'TH HEIGHT

MHOS MH~S MH<S

4 4 4 4 4

4

4 4 4 4 'I 4 4

4 4 4 4 4

4 4 4 4

4 4 4 4

4 4 4

4 4 4 4 4 4 4 4

4 4

880 880 880 880 880

890 890 890 890 890 890 890 890

900 900 900 900 900

910 910 910 910

920 920 920 920 920 920 920

931 931 931 931 931 931 931 931

940 940

--_._--- ---------

D E F G H

A B C D E F G H

A B C II E

A II C II

A II C D E F G

A fI C [J

E F G H

A B

5 6 3 4 2

3 2 6

o o 1 5

4 1 o 1 5

1 6 o 4

4 o o o 5 6 2

3 4 1 5 4 o o 5

3 o

98.0 114.5

11.7 6.2

10.1

7.8 11 .2

113.9 127.2

-5.1 B.8

40.4

19.1 3.6 0.0 1 .3

84.3

6.5 67.1 4.2

50.4

50.8 2.6 2.3

-0.8 103.1 73.7 10.8

23.0 30.8 11.3 68.3 57.2 -0.5

2.1 130.1

16.0 2.0

43.33l.=5 36.9 49.1 14.4 4.0 3.8 8.1

12.4 3.7

7.8 4.5 19.0 2.5 35.6 51.0 61.9 29.9 9.7 0.0 8.6 0.0

19.2 1.6 22.6 17.6

11.0 13.3 5.4 1.8 1.8 0.0 1.8 1.1

45.1 23.5

14.0 1.4 21.7 41.9 12.6 0.7 41.2 11.6

39.3 12.5 7.5 0.5 6.6 0.5 1.0 0.0

68.5 18.9 27.5 35.8 17.8 2.6

24.4 6.3 27.3 8.8 23.2 1.9 38.9 20.3 59.7 8.8 6.5 0.0

14.6 0.1 96.2 17.8

5.8 0.2

1 o

19 42 12

30 13

2 ., ~ ..

o o

10 18

18 16 o

60 o

13 12 10 12

7 7

20 o o 4

10

17 15 12

9 3

·0 o 5

13 o

29 30 25 31 35

27 24 27

23 25 20

32 44 32 30 30

27 23 27 19

25 38 28 32 26 29 29

21 21 22 23 24 28 29 19

30 36

Estiffiated depth may be unreliable because the stron~er part of the conductor ffiay be deeper or to one side of the flisht line, or because of a .shal16w dip or overburden effects.

PAGE

J8516 CENTRE ANOMALY LIST CLOU FREGZI

FLIGHT

444

4444444

444444

444444

444444

44444

44444

LINE ANOMALY

940940940

950950950950950950950

961961961961961961

970970970970970970

980980980980980980

990990990990990

10001000100010001000

CDE

ABCnEFG

ABCDEF

ABCDEF

ABCDEF

ABCDE

ABCDE

CATEGORY

453

5364202

202566

664102

2Q0364

16441

25400

FREQUENCY INPHASE

37.746.715,0

46,825,8

216,070.313.44.9

15.6

9.23.6

17,042.493.9103.9

112.0138,448. 15.73.7

13.9

11 .82.43.7

20.9195.937.2

7.0202,769.325.04,2

3.228.815.82.90.3

932 QUAD,

34.421 .512.9

27.237.975.860.119.217.821 .5

11 .69.5

25.325.229.636.0

49.243.231 .714.710,520,7

16.38.310.319.656.531 .9

17,171.748.815.98.4

4.215,69.36.61 .2

CONDUCTOR CTP DEPTH

MHOS MTRS

9,123.87,1

17,64,3

52.712.23.40,53.8

3,50,73,6

16.547,843.5

32.854.015.11,00.73,3

3.40,40.77.1

65.99.8

1*251.215.512,7

1 .2

2.016.512.10.80.0

24

13

10725

120

16

1315602

205357

1289

1504

1005

1116

'32

9211450

BIRD HEIGHT MTRS

323435

26242122273322

344230313128

263029343530

303332263131

2525243333

3634323728

1010 -0.2 5.3 0.0 20

Estimated depth may be unreliable because the stronger part of the conductor may be deeper or to one side of the flisJht line* or because of a shallow dip or overburden effects*

•

I

~

)

PAGE

J8516 CENTRE ANOMALY LIST [LOW FREOJ

t.-.J



CONDUCTOR BIRD eTP lIEPTH HEIGHT

MHOS MTRS MTRS

4 4 4

4 4 4 4 4

4 4

4 4 4 4 4 4

4 4 4 4 4 4

4 4 4 4 4 4

4 4 4 4 4

4 4 4 4 4

4

940 940 940

950 950 950 950 950 950 950

961 961 961 961 961 961

970 970 970 970 970 970

980 980 980 980 980 980

990 990 990 990 990

1000 1000 1000 1000 1000

1010

C II E

A B C D E

F G

A B C D E F

A B

C D E

F

A B C D E F

A B C

D E

A B C [I

E

A

4 5 3

5 3 6 4 2 o 2

2 o 2 5 6 6

6 6 4 1 o 2

2 o o 3 6 4

1 6 4 4 1

2 5 4 o o

o

37.7 46.7 15.0

46.8 25.8

216.0 70.3 13.4 4.9

15.6

9.2' 3.6

17.0 42.4 93.9

103.9

112.0 138.4

48.1 5.7 3.7

13.9

11.8 2.4 3.7

20.9 195.9 37.2

7.0 202.7 69.3 25.0 4.2

3.2 28.8 15.8

2.9 0.3

-0.2

34.4 9.1 21.5 23.8 12.9 7.1

27.2 17.6 37.9 4.~5

75.8 52.7 60.1 12.2 19.2 3.4 17.8 0.5 21.5 3.8

11.6 3.5 9.5 0.7

25.3 3.6 25.2 16.5 29.6 47.8 36.0 43.5

49.2 32.8 43.2 54.0 31.7 15.1 14.7 1.0 10.5 0.7 20.7 3.3

16.3 3.4 8.3 0.4

10.3 0.7 19.6 7.1 56.5 65.9 31.9 9.8

17.1 1.2 71.7 51.2 48.8 15.5 15.9 12.7 8.4 1~2

4.2 2.0 15.6 16.5 9.3 12.1 6.6 0.8 1.2 0.0

5.3 0.0

2 4

13

10 7 2 5

12 o

16

13 1 5 6 o 2

2 o

3

7

12 8 9

15 o 4

10 o 5

11 16

32 9

21 14 50

o

3':)

34 35

26 24 21 22 27 33 22

34 42 30 31 31 28

26 30 29 34 35 30

30

33 32 26 31 31

25 25 24 33 33

36 34 32 37 28

20

Estimated depth may be unreliable because the stron~er part of the conductor may be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

PAGE

FLIGHT

J8516 CENTRE ANOMALY LIST CLOU FREGD


LINE ANOMALY CATEGORY INPHASE QUAD* MHOS MTRS MTRS

4444

44444

444444

5555

55555

5555

55

555

55

1010101010101010

10211021102110211021

103010301030103010301030

1040104010401040

10501050105010501050

1060106010601060

10701070

108010801080

10901090

BCDE

ABCDE

ABCDEF

ABCD

ABCDE

AB

CD

AB

ABC

AB

0321

25161

166053

1366

65300

0024

41

002

31

31185

6403

2113

3242246

45720

410

136105

876411-0

0

0-0

736

374

11

11

186

.9

.5

.6

.2

.4

.9

.5

.6

.3

.8

.5

.3

.1

.9

.6

.0

.5

.5

.2

.5

.5

.1

.3

.0

.2

.1

.5

.6

.8

.0

.1

.6

.2

.9

.9

119

1411

10187

806

58297112623

77

4742

36361044

448

23

277

34

19

1913

*

t

*

*

*

*

t

*

#

*

*

t

*

*

t

*

*

t

*

t

*

*

*

*

t

#

t

t

t

t

*

t

t

t

t-

2262

00572

938601

0811

17A22

9793

67

985

9A

0,77.12.21 .2

2.224 .2

1 .047.11.2

1.756.846.70.7

26.25.6

1 .S7.6

47.336.3

33.120.05.60.00.0

0.00.03.5

14.4

12.21.3

0.20,32.4

5.91.6

11281413

146

110

25

2900

127

13

182000

00

1900

30

200

320

2827" 7

1514

28252730

3434382329

292225272825

35373034

3132322926

23283339

3430

262630

2527

1100 8.8 13.7 2.5 14 29

Estimated depth may be unreliable because the stronger part of the conductor mau be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

• I

J

PAGE 6

J8516 CENTRE ANOMALY LIST [lOW FREOJ



CONItUCTOR BIrW eTP DEPTH HEIGHT

MHOS MTRS MTRS

4 4 4

4

4

4 4 4 4

4

4 4 4 4 4

5 5 5 5

5 5 5 5 5

5 5 5 5

5 5

5 5 5

5 5

5

1010 1010 1010 1010

1021 1021 1021 1021 1021

1030 1030 1030 1030 1030 1030

1040 1040 1040 1040

1050 1050 1050 1050 1050

1060 1060 1060 1060

1070 1070

1080 1080 1080

1090 1090

1100

------- -------- ------- -----

B C [I

E

A B C [I

E

A B C [I

E F

A B C [I

A B C [I

E

A B

,C

D

A B

A B C

A [t

A

o 3 2

1

5 1 6 1

1 6 6 o 5 3

1 3 6 6

6 5 3 o o

o o 2 4

4 1

o o 2

3 1

2

3.9 11.5 8.6 5.2

6.4 40.9 3.5

211.6 3.3

3.8 242.5' 246.3

4.1 57.9 20.6

4.0 10.5

136.5 105.2

87.5 64.5 11 .1 -0.3 0.0

0.2 -0.1

7.5 36.6

37.8 4.0

1 • 1 1 .6

11.2

8.8

11.2 9.2

14.6 11 .2

10.0 18.0 7.5

80.7 6.2

5.9 82.3 97.8 11.6 26.0 23.1

0.7 7.1 2.2 1.2

24.2 1 .0

47.1 1.2

1.7 56.13 46.7 0.7

26.2 5.6

7.0 1.5 7.8 7.6

47.1 47.3 42.1 36.3

36.1 33.1 36.7 20.0 10.4 5.6 4.2 0.0 4.2 0.0

4.9 0.0 4.7 0.0 8.9 3.5

23.3 14.4

27.6 12.2 7.7 1.3

3.9 0.2 4.8 0.3

19.5 2.4

19.9 5.9 13.4 1.6

13.7

11 28 14 13

14 6

11 o

25

29 o o

12 7

13

18 20

o o

o o

19 o o

3 o

20 o

3 20

28 27

. 7

15 14

14

2B 25 27 30

34 34 38 23 29

29 22 25 27 28

35 37 30 34

31 32 32 29 26

23 28 33 39

34 30

26 26 30

25 27

29

Estiruated depth ruay be unreliable because the stron~er part of the conductor ruay be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

PAGE

J8516 CENTRE ANOMALY LIST CLOW FREQD



5

5555

555

5555

55

5

5

5

5

5

55

55

55

55

55

1100

1110111011101110

112011201120

1130113011301130

11401140

1150

1160

1170

1180

1190

12001200

12101210

12201220

12301230

12401240

B

ABCD

ABC

ABCD

AB

A

A

A

A

A

AB

AB

AB

AB

AB

3

1533

363

0600

00

0

0

0

2

2

01

11

32

33

20

9,0

8,0109.228,96.5

4.868.815.8

2,267.40.52.7

1 . 1-0.1

0,6

1 .8

3.6

10.3

8.7

1 ,57,3

7.47,1

19.216.1

12.716.5

10.8-0.3

8,8

21 .573.035.76.0

3,920.9

' 17.5

5.019.64,25.5

5.53.4

4.0

6.8

10.4

16,0

11,9

20.815.4

16,716.8

22.322.3

14,418.6

14.08.9

4.9

1 .119.15.64.6

4.945.85.1

0.748.20,00,9

0,10.0

0.0

0.2

0,6

2.7

3.0

0.01 .5

1.41.3

5,23.8

4.65,1

3.60.0

27

326

27

339

10

2489

22

110

14

15

13

12

14

08

51

47

12' 7

200

27

28242635

402632

32273134

3228

29

28

27

29

33

3030

3135

3430

3334

2430

1250 -1.5 9.3 0.0 29

Estimated depth may b e unreliable because the stronger part of the conductor maa be deeper or to one side of the flight line* or because of s shallow dip or overburden effects*

PAGE 7

J8516 CENTRE ANOMALY LIST CLOW FREOJ I • CONDUCTOR ItlRD

FREQUENCY 932 CTP [IEF-TH HEIGHT FLIGHT LINE AtWMALY CATEGORY INF'HASE QUAD. MHOS MH:S MTRB ------ ------- -------- ------_ .. -----

5 1100 I{ 3 9.0 8.8 4.9 27 27

5 1110 A 1 8.0 21.5 1 • 1 3 28 5 1110 II 5 109.2 73.0 19.1 2 24 5 1110 C 3 28.9 35.7 5.6 6 26 5 1110 II 3 6.5 6.0 4.6 27 35

5 1120 A 3 4.8 3.9 4.9 33 40 5 1120 II 6 68.8 20.9 45.8 9 2l, 5 1120 C 3 15.8 17.5 5.1 10 32

5 1130 A 0 2.2 5.0 0.7 24 32 5 1130 II 6 67.4 19.6 48.2 8 27 5 1130 C 0 0.5 4.2 0.0 9 31 5 1130 [I 0 2.7 5.5 0.9 22 34

5 1140 A 0 1 • 1 5.5 0.1 11 32 5 1140 B 0 -0.1 3.4 0.0 0 28

5 1150 A 0 0.6 4.0 0.0 14 29

~ 5 1160 A 0 1.8 6.8 0.2 15 28

5 1170 A 0 3.6 10.4 0.6' 13 27

5 1180 A 2 10.3 16.0 2.7 12 29

5 1190 A 2 8.7 11.9 3.0 14 33

5 1200 A 0 1.5 20.8 0.0 0 30 5 1200 [I 1 7.3 15.4 1.5 B 30

5 1210 A 1 7.4 16.7 1.4 5 31 5 1210 [I 1 7.1 16.8 1.3 1 35

5 1220 A 3 19.2 22.3 5.2 4 34 5 1220 [I 2 16.1 22.3 3.8 7 30

5 1230 A 3 12.7 14.4 4.6 12 33 5 1230 II 3 16.5 18.6 5.1 . 7 34

5 1240 A 2 10.8 14.0 3.6 20 24 5 1240 II 0 -0.3 8.9 0.0 0 30

5 1250 A 0 -1.5 9.3 0.0 0 29 • Estinlated depth nla'::! be unreliable becalJse the stronser part of the conductor ma'::! be deeper or to one side of the flisht line, or because of a shallow dip or overburden effects.

J

J8516 CENTRE ANOMALY LIST CLOU FREQ3


FLIGHT LINE ANOMALY CATEGORY INPHASE QUAD. MHOS MTRS MTRS

5 1250

5 1260

5 1270

5 1280 5 1280

5 1290 5 1290

5 1300

5 1310

6 1320

6 1330

6 1340

6 1350

6 1360

6 1370

6 1380

6 1390

6 1400

B

A

A

A B

A B

A

A

A

A

A

A

A

A

A

A

A

0

1

2

0 0

0 0

0

0

1

2

2

2

1

3

4

4

4

5

8

9

5 1

8 0

2

3

4

11

14

8

10

22

10

17

15

.3

.0

.5

.7

.5

.6

.8

.0

.7

.6

.3

.6

.9

,0

.4

.7

.0

.5

16

18

16

15 19

32 8

9

11

8

21

22

14

19

27

7

13

11

.3

.7

.1

.7

.7

.2

.6

.7

.7

.1

.6

.4

.3

.6

.1

.6

.2

.3

0

1

2

0 0

0 0

0

0

1

2

3

2

1

5

8

8

9

.7

.4

.3

.9

.0

.7

.0

.2

.6

.6

.1

.2

.4

.9

.2

.1

.5

.0

12

10

5

3 0

0 2

8

9

20

7

0

7

6

7

20

14

15

22

25

35

32 29

2726

27

29

30

20

36

35

30

29

38

33

35

Estimated depth nisu be unreliable because the stronger pert of the conductor may be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

I i PAGE 8 I .

J8516 CENTRE ANOMALY LIST (LOW FREtJJ

• CONDUCTOR BIRD FREOUENCY 932 eTP DEPTH HEIGHT

j FLIGHT LINE ANOMALY CATEGORY INPHASE QUAIl. MHOS MTRS MTf..;S ------ _ .. _---_ .... -------- ------- -----

S 1250 B 0 5.3 16.3 0.7 12 22

5 1260 A 1 8.0 18.7 1 .4 10 2S

5 1270 A 2 9.5 16.1 2.3 5 35

5 1280 A 0 5.7 15.7 0.9 3 32 5 1280 B 0 1.5 19.7 0.0 0 29

0:-oJ 1290 A 0 8.6 32.2 0.7 0 27 5 1290 II 0 0.8 B.6 0.0 2 26

... 5 1300 A 0 , 2.0' 9.7 0.2 8 27

5 1310 A 0 3.7 11.7 0.6 9 29

6 1320 A 1 4.6 8.1 1 .6 20 30

6 1330 A 2 11.3 21.6 2.1 7 2£1

~ 6 1340 A 2 14.6 22.4 3.2 0 36

6 1350 A 2 B.9 14.3 2.4 7 35

6 1360 A 1 10.0 19.6 1.9 6 30

6 1370 A 3 22.4 27.1 5.2 7 29

6 1380 A 4 10.7 7.6 8.1 20 38

6 1390 A 4 17.0 13.2 8.5 14 33

6 1400 A 4 15.5 11.3 9.0 15 35

£stin,ated def'th n,aY be unreliable becalJse the stronger f'art of the conductor n,aY be deef'er or to one side of the flight line, or because of a shallow dif' or overburden effects.

J

FLIGHT

J8516 EAST ANOMALY LIST

FREQUENCY 4600 LINE ANOMALY CATEGORY INPHASE QUAD.

PAGE


MHOS MTRS MTRS

111111

2222

22222

222rt

2

22222

i1

111

1

11

11

101010101010

21212121

3131313131

4141414141

5151515151

6060

707070

80

9090

100100

ABCDEF

ABCD

ABCDE

ABCDE

ABCDE

AB

ABC

A

AB

AB

215012

2611

21062

24222

23341

41

115

4

11

11

94.141.7

103.214.747.467.0

68.2105.649.251 .6

66.536.19.3

133.287.6

56.259.622.930.238.0

46.654.9

105.686.748.5

83.734.9

51 .233.1

170.4

74.5

28.071.8

59.357.2

83.747.015.617,247.555.6

52.19.3

58.249.5

56.740.523.15,2

85.1

45,011,816.520.431.7

35.829.950.628.255.9

22.332.9

55.834.227.3

25.1

28.981*3

66.078.3

2.51 .4

26.00.91 .72.5

2.853.9

1 .41.9

2,41 .40,2

176.02.2

2.515,62.12.52,0

2,44.05.89.01 .5

11 .61.7

1 .61.5

27.6

8.3

1 .41.7

1.61.2

10

101820

11000

68

1290

05

1270

46993

63

10112

11

' 5

0

00

243321242832

28222932

2223202126

3533323335

3029192325

2731

182224

23

3025

3128

Estimated depth may be unreliable because the stronger part of the conductor may be deeper or to one side of the flight linef or because of a shallow dip or overburden effects.

• r

J

PAGE 1





MHOS MTRS MTRS

1 1 1 1 1 1

2 2 .., ~-

2

2 2 2 2 2

2 .., ,-7 2 2

2 2 2 2 2

1 1

1 1 1

1

1 1

1 1

10 10 10 10 10 10

21 21 21 21

31 31 31 31 31

41 41 41 41 41

51 51 51 51 51

60 60

70 70 70

80

90 90

100 100

------- -------- ------- -----

A B C D E F

A B C D

A B C D E

A B C D E

A B C D E

A B

A [I

C

A

A B

A B

2 1 5 o 1 2

2 6 1 1

2 1 o 6 2

2

4 2 2 2

2 3 3 4 1

4 1

1 1 5

4

1 1

1 1

94.1 41.7

103.2 14.7 47.4 67.0

68.2 105.6

49.2 51.6

66.5' 36.1 9.3

133.2 87.6

56.2 59.6 22.9 30.2 38.0

46.6 54.9

105.6 86.7 48.5

83.7 34.9

51.2 33.1

170.4

28.0 71.8

47.0 1.4 15.6 26.0 17.2 0.9 47.5 1.7 55.6 2.5

52.1 2.8 9.3 53.9

58.2 1.'1 49.5 1.9

56.7 2.4 40.5 1.4 23.1 0.2 5.2 176.0

85.1 2.2

45.0 2.5 11.8 15.6 16.5 2.1 20.4 2.5 31.7 2.0

35.8 2.4 29.9 '4.0 50.6 5.13 28.2 9.0 55.9 1.5

22.3 11.6 32.9 1.7

55.8 1.6 34.2 1.5 27.3 27.6

25.1 8.3

28.9 1.4 81.3 1.7

66.0 1.6 78.3 1.2

1 o

10 18

2 o

1 10 o o

6 8

12 9 o

o 5

12 7 o

4 6 9 9 3

6 3

10 11

2

11

5 o

o o

24 33 21 24 28 32

28 22 29 32

22 23 20 21 26

35 3:~

32 33 35

30 29 19 23 25

27 31

18 22 24

23

30 25

31 28

Estimated depth ma~ be unreliable because the stron~er part of the conductor ma~ be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

PAGE


FLIGHT

11111

1111

11

1

1

1i

111

11

11

11

22

222

222

LINE ANOMALY CATEGORY

110110110110110

120120120120

132132

141

150

160160

170170170

180180

190190

200200

210210

220220220

230230230

ABCDE

ABCH

AB

A

A

AB

ABC

AB

AB

AB

AB

ABC

ABC

20001

1002

12

1

1

11

211

01

11

21

12

031

13

1 0

FREQUENCY INPHASE

87.710.06.04.8

77.5

29.15.99,7

67.0

33.370.2

70.8

60.9

26.766.2

52.025.756.1

34.051.8

74,538.5

56.847.9

74.081 .0

39.9115.647.0

47.079.144.7

4600 QUAD.

75.112.115.98,1

93.5

33.812.110.550.4

40,669.0

90.6

68.2

28,283,1

48,528.955.8

49.548.7

77.844.9

54.356,6

87.652.9

70.671 .151 .3

53.445.885.2

CONDUCTOR BIRD GTP DEPTH HEIGHT

MHOS MTRS MTRS

2.60.70,20.31 .6

1,20.20.82,8

1.22.0

1.4

1 .6

1 .31 .5

2.01 .21.9

0.91.9

1 .91 .3

2.01 .4

1.63,6

0.84.31.5

1 .54.20.7

03

11240

01780

00

0

0

40

031

00

00

20

01

02

' 2

010

2545242724

42254333

3728

27

30

3129

373227

3034

3034

2736

2928

282427

292924


• !

)

~

PAGE




CONDUCTOR Brr.:D CTr DEPTH HEIGHT

MHIlS MTRS MTRS

1 1 1 1 1

1 1 1 1

1

1

1

1

1 1

1 1 1

1 1

1 1

1 1

2 2

2 2 2

2 2 2

110 110 110 110 110

120 120 120 120

132 132

141

150

160 160

170 170 170

180 180

190 190

200 200

210 210

220· 220 220

230 230 230

------- -------- ------- -----A B C D E

A II C [I

A

B

A

A

A B

A It C

A It

A fl

A B

A B

A B C

A II C

2 o o o 1

1 o o 2

1

2

1

1

1 1

2 1 1

o 1

1 1

2 1

1 2

o 3 1

1 3

. 0

87.7 10.0 6.0 4.8

77.5

29.1 5.9 9.7

67.0

33.3 70.2 .

70.8

60.9

26.7 66.2

52.0 25.7 56.1

34.0 51.8

74.5 38.5

56.8 47.9

74.0 81.0

39.9 115.6 47.0

47.0 79.1 44.7

75.1 12.1 15.9 8.1

93.5

33.8 12.1 10.5 50.4

40.6 69.0

90.6

28.2 83.1

48.5 28.9 55.8

49.5 48.7

77.8 44.9

54.3 56.6

87.6 52.9

70.6 71 .1 51.3

53.4 45.8 85.2

2.6 0.7 0.2 0.3 1.6

1.2 0.2 0.8 2.8

1.2 2.0

1.4

1.3 1.5

2.0 1.2 1.9

0.9 1.9

1.9 1 .3

2.0 1.4

1.6 3.6

0.8 4.3 1.5

1 .5 4.2 0.7

o 3

11 24

o

o 17

8 o

o o

o

o

4 o

o 3 1

o o

o o

2 o

o 1

o 2

. 2

o 1 o

25 45 24 27 24

42

37

2B

27

30

31 29

37 32 27

30

34

30 34

27 36

29 28

28 24 27

29 29 24

Esti~ated depth ~a~ be unreliable because the stronger part of the conductor ~a~ be deeper or to one side of the flight line, or because of a shallow dip or overburden effects.

FLIGHT


LINE ANOMALY CATEGORYFREQUENCY 4600 INPHASE QUAD*

PAGE


MHOS MTRS MTRB

22

222

22222

2222

222

222

22222

2222

222

222

240240

250250250

260260260260260

270270270270

280280280

290290290

300300300300300

310310310310

320320320

330330330

AB

A6C

ABCDE

ABCD

ABC

ABC

ABCDE

ABCD

ABC

ABC

31

103

31021

0103

201

112

12110

2111

212

112

7434

249

61

10029242618

13262578

931928

554579

728437207

22175532

342024

322125

.8

.4

.4,3.1

.8

.6

.8

.2

.7

.5

.8

.6

.9

.3

.9

.8

. 1

.2

.1

,6.6.9.3.2

.7*9,9.1

.5

.2

.6

.0

.1

.8

4335

191923

4532542017

16234833

613333

596456

1195951229

13165541

241515

272315

.3

.8

.5

.0

.8

.4

.3

.8

.2

.8

*3, 1.5,2

.8

.0*0

.8

.4

.8

.8

.9,2.2.4

.0

.7

.3,3

.5*7.8

.1

.4

.0

41

106

61021

0106

301

113

13110

2111

212

112

.1

.5

.8,3.5

.2

.3

.5,0.3

.8

.7

.6

.3

.7

.6

.2

.6

.1

.2

.1

.3

.1,1.6

.8

.3

.9

. 1

.4

.8

.5

.9

.1

.9

20

060

07078

11500

100

000

0000

17

191500

516"12

04

15

2843

433035

2927333334

32343232

273241

322732

2230344334

28283233

332932

413430


I • I

PAGE: 3

J8516 E~ST ANOMALY LIST



CONDUCTor~ BIRD CTF' DEPTH HEIGHT

MHOS MTRS MTRS

2

2 2 2

2 2 2 2 2

., ~-

2 2 2

2 2 2

2 2 2

2 2 2 ') ... 2

2 2 2 2

2 2

2 2 2

240 240

250 250 250

260 260 260 260 260

270 270 270 270

280 280 280

290 290 290

300 300 300 300 300

310 310 310 310

320 320 320

330 330 330

------- -------- ------- -----A [t

A B C

A It C D E

A B C [l

A B C

A B C

A B C D E

A It C D

A 13 C

A B C

3 1

1 o 3

3 1 o 2 1

o 1 o 3

2 o 1

1 1 2

1 2 1 1 o

2 1 1 1

2 1 2

1 1 2

74.8 34.4

24.4 9.3

61.1

100.8 29.6 24.8 26.2 18.7

13.5 26.8 25.6 78.9

93.3 19.9 28.8

55.1 45.2

43.3 35.8

19.5 19.0 23.0

45.4 32.3 54.8 20.2 17.8

16.3 23.1 48.5 33.2

61.8 33.0 33.0

59.8 64.4

79.1 56.8

72.6 ' 119.0 84.6 59.9 37.9 51.2 20.3 22.2

7.2 9.4

22.7 13.0 17.9 16.7 55.9 55.3 32.1 41.3

34.5 24.5 20.2 15.7 24.6 15.8

32.0 27.1 21.1 23.4 25.8 15.0

4.1 1 .5

1.8 0.3 6.5

6.2 1.3 0.5 2.0 1 .3

0.8 1 .7 0.6 6.3

3.7 0.6 1.2

1 .6 1.1 3.2

1 .1 3.3 1 • 1 1 • 1 0.6

2.8 1.3 1 .9 1 • 1

2.4 1.8 2.5

1.9 1 • 1 2.9

2 o

o 6 o

o 7 o 7 B

11

o o

1 o o

o o o

o o o o

17

19 15 o o

5 16 "12

o 4

15

2B 43

43 30 35

29 27 33 33 34

32 34 32 32

27 32 41

32 27 32

22 30 34 43 34

28 28 32 33

33 29 32

41 34 30



FLIGHT LINE ANOMALY CATEGORYFREQUENCY 4600 INPHASE QUAD.

PAGE


MHOS MTRS MTRS

222

222

33

3333

3333333

33333333

333333

3333

350350350

351351351

352352

360360360360

370370370370370370370

380380380380380380380380

390390390390390390

400400400400

ABC

AEC

AB

ABCD

ABCDEFG

ABC -DEFGH

ABCDEF

ABCD

202

113

34

1234

p144101

11341233

322431

0341

25*322.024.2

27,429.496.7

111.6148.5

27, 125.9

135.6205, 1

69.937,1

220.4195.026.233.220.2

18.619.8

103.6130.945.252.054.539.8

92.785.250.8183.9119.421.6

16.989.9107.830.8

19,528.314,8

27.425,542.3

44.643.0

32.719.362.659,0

58.847.269.866.826.048.623.6

14.520,648.140,352.341 .722.514,3

50.153.441.459.554,426.2

27.747,133.827.0

2.00.92.6

1 .41 .86.4

7.512.3

1 ,12,16.6

13.5

2,51 .2

12.210.71.40.91 .0

1.71 .26.0

10.91 .42.45.86.3

4.83.92.311,36.41.0

0.64.9

10.11.8

00

11

0140

10

01000

2632

124o

7900007

12

00002

12

5001

4 D3534

422430

2727

35322625

26232022252435

3931293232323030

283135242624

28293236

Estimated depth meu be unreliable because the stronger part of the conductor may be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

'. I

PAGE 4



LINE ANOMALY CATEGORY INPHASE ~UAD.

CONDUCTor, Bl ra. CTP nEPHi HEIGHT

MHOS MTRS MTRS

2 2 2

2 2 2

3

3

3 3 3 3

3 3 3 3 3 3 3

3 3 3 3 3 3

3 3

3 3 3 3 3 3

3 3 3 3

350 350 350

351 351 351

352 352

360 360 360 360

370 370 370 370 370 370 370

380 380 380 380 380 380 380 380

390 390 390 390 390 390

400 400 400 400

------- -------- ------- -----

A fl C

A B C

A B

A

B C

D

A B

C D E F G

A B C [I

E F G H

A B C [I

E F

A B C [I

2 o 2

1 1 3

3 4

1

2 3 4

2 1 4 4 1 o 1

1 1 3 4 1 2 3 3

3 2 2 4 3 1

o 3 4 1

25.3 22.0 24.2

27.4 29.4 96.7

111. 6 148.5

27.1 25.9'

135.6 205.1

69.9 37.1

220.4 195.0 26.2 33.2 20.2

18.6 19.8

103.6 130.9 45.2 52.0 54.5 39.8

92.7 85.2 50.8

183.9 119.4 21.6

16.9 89.9

107.8 30.8

19.5 2.0 28.3 0.9 14.8 2.6

27.4 1.4 25.5 1.8

44.6 7.5 43.0 12.3

32.7 1.1 19.3 2.1 62.6 6.6 59.0 13.5

58.8 2.5 47.2 1.2 69.8 12.2 66.8 10.7 26.0 1.4 48.6 0.9 23.6 1.0

14.5 20.6 48.1 40.3 52.3 41.7 22.5 14.3

50.1 53.4 41.4 59.5 54.4 26.2

27.7 47.1 33.8 27.0

1.7 1.2 6.0

10.9 1 .4 2.4 5.8 6.3

4.8 3.9 2.3

11. 3 6.4 1.0

0.6 4.9

10.1 1.8

o o

11

o 14

o

1

o

o 10

o o

2 6 3 2

12 4 2

7 9 o o o o 7

12

o o o o 2

12

5 o o 1

4(1

35 34

42 24 30

27

27

3::-;

32 26

25

26 23 20 22

24 35

39 31 29 32 32 32 30 30

28 31 35 24 26 24

28 29 32 36


PAGE


FLIGHT LINE ANOMALY CATEGORYFREQUENCY 4600 INPHASE QUAD 4


MHOS HTRS MTRS

3

333

333

333

3333

3333

3333

3333

3333

33333

400

410410410

420420420

430430430

440440440440

450450450450

460460460460

470470470470

480480480480

490490490490490

E

ADC

ABC

ABC

ABCD

ABCD

ABCD

ABCD

ABCD

ABCDE

1

444

354

555

3453

2430

1452

2331

0322

21111

1

11

11

11

11

1

11

76

782386

800402

841130

97479260

00136641

31864955

80111850

32777969

2761483447

.7

.3

.0

.8

.1, 1.9

.6

.0

.4

.6

.2

. 1

.7

.1

.1

.0

.5

.4

.6

.5

.9

,6,1.1.2

.7

.1

.1

.4

48.5.3.2.0

86

203130

291827

141727

49563525

68292363

43303148

51525354

48385346

2267504445

.6

. 3

.3

.0

.3

.9

.4

.6

.5

.6

.6

.8

.4,0

.5,1.8,5

.2

.3

.2

.4

.9

.9

.7

.7

.2

.1

.2

.2

.0

.9

.6

.1

.9

1.8

11 ,813,78,4

7,620.412.3

20,625.117.8

5,38.4

23.76.0

3.613.27,30.9

1 .08.2

18.82.2

3.75.96.41 .6

0.95,13.43.3

2.01 .71 .61 .11.8

0

400

273

500

4304

0000

0200

0630

0A00

' 5

0000

26

303031

302427

293229

24232531

27303433

34303037

31222530

30282931

3531363437

500 115,5 91 .6 3.1 23

Estimated depth may be unreliable because the stronger part of the conductor maa be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

I Ie

J

f'AGE


c:' .. I



CONDUCTOR IIH-:D crr DEPHf HE I GHT

MHOS MTRS MTr<S

3

3 3 3

3 3 3

3

3 3

3 3 3 3

3 3 3 3

3 3

3 3

3 3 3 3

3 3

3 3

3 3 3 3 3

3

400

410 410 410

420 420 420

430 430 430

440 440 440 440

450 450 450 450

460 460 460 460

470 470 470 470

480 480 480 480

490 490 490 490 490

500

------- -------- ------- -----E

A [I

C

A B C

A B C

A .B C D

A B C D

A .B C D

A II C D

A B C D

A D C D E

A

1

4

4 4

3 5 4

5 c.-.J

5

3 4 5 3

2 4

3 o

1 4

5 2

2

3 3 1

o 3 2 2

2 1 1 1 1

2

76.7

78.3 123.0 86.8

80.1 104.1 102.9

84.6 111.0 130.4

97.6 147.2 192.1 60.7

100.1 113.1 66.0 41.5

31.4 86.6

149.!:i 55.9

BO.6 111 • 1 I1B .1 50.2

32.7 77.1 79.1 69.4

27.8 61.5 48.3 34.2 47.0

115.5

86.6 1.B

20.3 11.8 31.3 13.7 30.0 8.4

29.3 7.6 18.9 20.4 27.4 12.3

14.6 20.6 17.5 25.1 27.6 17.8

49.6 5.3 56.8 8.4 35.4 23.7 25.0 6.0

68.5 3.6 29.1 13.2 23.8 7.3 63.5 0.9

43.2 1.0 30.3 8.2 31.2 18.H 48.4 2.2

51.9 3.7 52.9 5.9 53.7 6.4 54.7 1.6

48.2 0.9 38.1 5.1 53.2 3.4 46.2 3.3

22.0 2.0 67.9 1.7 50.6 1.6 44.1 1.1 45.9 1.8

91.6 3.1

o

4 o o

2 7 3

5 o o

4 3 o 4

o o o o

o 2 o o

o 6 3 o

o 4 o o

5 o o o o

1

26

30 30 31

30 24 27

29 32 29

24 23

31

27 30 34 33

34 30 30 37

31 22 25 30

30 28 29 31

35 31 36 34 37

23

Estimated depth may be unreliable because the stronSer part of the conductor rua~ be deeper or to one side of the flisht line, or because of a shallow dip or overburden effects.

PAGE


FLIGHT

33333

3333

33333

33333

3333333

3333

33333

333

LINE ANOMALY

500500500500500

510510510510

520520520520520

530530530530530

540540540540540540540

550550550550

560560560560560

570570570

BCDEF

ABCD

ABCDE

ABCDE

ABCDEFG

ABCD

ABCDE

ABC

CATEGORY

00131

1224

12220

22130

0213021

2422

32431

342

FREQUENCY 4600 IHPHASE QUAD.

3.959.590.7146.236.3

27.496.290.1153.6

9.6151 .382.665.725.0

38,173.858.0155,6 '10.5

5.7171 .037.492.38.3

30.832.1

49,2194.799.2143.7

136.750.392.842.666.5

51.8125.046.0

11.5100.7103.792.439.6

27.995.691.060.6

8.4127.687.064.736.7

23.953.272.184.511.4

8.3124.833.237,410,221.135.2

27.465.877.1

101 .5

86.332,827,721.977.6

23.332,941.4


MHOS MTRS MTRS

0. 10.91 ,84,51 ,4

1 .42,22.18.3

1 .13.22.02.00.8

3.03.11 .45.60.9

0.43.91 .96.90.72.51 .3

3.810.83.13.9

4.43.110.34.01 .6

5.113.22.0

160023

1100

270020

7400

24

24038

' 22

40

10550

053

' 3

0

810

2225242229

34222725

2821262531

3124282425

28213123283635

26192024

2429283626

292832


•

PAGE 6




CONDUCTOR BIRD eTr IIEPTH HE I GHT

MHOS MTRS MTRS

3 3 3

3 3

3

3 3 3

3

3 3 3 3

3 3 3 3 3

3 3 3 3 3 3 3

3

3 3 3

3 3 3 3 3

3 3 3

500 500 500 500 500

510 510 510 510

520 520 520 520 520

530 530 530 530 530

540 540 540 540 540 540 540

550 550 550 550

560 560 560 560 560

570 570 570

It C [I

E F

A B C [I

A

B C [I

E

A

fl C [I

E

A B C II E F G

A fl e It

A fl C It E

A It C

o o 1 3 1

1 2 2 4

1

2 2 2 o

2 2 1 3 o

o 2 1 3 o .., ". 1

2 4 2 2

3 2 4 3 1

3 4 2

3.9 11.5 59.5 100.7 90.7 103.7

146.2 92.4 36.3 39.6

27.4 27.9 96.2 95.6 90.1 91.0

153.6 60.6

9.6 8.4 151.3· 127.6 82.6 87.0 65.7 64.7 25.0 36.7

38.1 73.8 58.0

155.6 10.5

5.7 171. 0 37.4 92. :5 8.3

30.8 32.1

49.2 194.7 99.2

143.7

136.7 50.3 92.8 42.6 66.5

23.9 53.2 72.1 84.5 11 .4

8.3 124.8 33.2 37.4 10.2 21.1 35.2

27.4 65.8 77.1

101.5

86.3 32.8 27.7 21.9 77.6

0.1 0.9 1 .8 4.5 1.4

1 .4 2.2 2.1 8.3

1 • 1 3.2 2.0 2.0 0.8

3.0 3.1 1 .4 5.6 0.9

0.4 3.9 1 .9 6.9 0.7

1 .3

3.8 10.8

3.1 3.9

4.4 3.1

10.3 4.0 1.6

51.8 125.0 46.0

23.3 5.1 32.9 13.2 41.4 2.0

16 o o 2 3

1 1 o o

27 o o 2 o

7 4 o o

24

24 o 3 8

4 o

10 5 5 o

o 5 3 3 o

8 1 o

22 25 24 22 29

34

27 '1". ". oJ

28 21 26 '1 c· "" ~J

31

31 24 28 24 2~j

28 21 31 2:~

28 36 35

26 19 20 24

24 29 28 36 26

29 20 32

Esti~ated depth ~a~ be unreliable because the stronSer part of the conductor ma~ be deeper or to one side of the flisht line, or hpcause of a shallow dip or overburden effects.

PAGE




3

3333333

333333

3333

333333

33333

33333

3333

570

5BO580580580500580580

590590590590590590

600600600600

610610610610610610

620620620620620

630630630630630

640640640640

D

ABCDEFG

ABCDEF

ABCD

ABCDEF

ABCDE

ABCDE

ABCD

3

1123013

110401

1040

004412

21441

04512

2154

109.2

37,642.553.380.118,924.144.9

24.621.79.5

116.423.859.5

40.013.271 .35.9

11.84.3

146.1190.836.538.5

32.038.193.795.525.9

24.6168.7143.722.825.0

23.215.5123.088.5

67.7

39,938.932.344.641 .418.520.6

22.619.421 .841,934.372.7

38.720,523,116.9

13.627,652,755.746.630.3

22.035.626.329,725.7

44.841 .431 .122.912.6

12.017.125.730.0

4.2

1.51.93.54.40.41 ,94.7

1 .51 .50,38.60.81.4

1 .70.68,60.1

0,80.09.2

13.01 .12.2

2.51.8

11.29.91 .4

0.615.717.71,33.5

3.31 .0

17.88.6

0

00523

203

6102210

0103

2520234

31007

0003

' 7

81000

28

39332928242336

333131273130

37363531

202026222631

3732353530

2731303539

39323333

Estimated depth may be unreliable because the stronger part of the conductor meu be deeper or to one side of the flight liner or because of s shallow dip or overburden effects.

'.

PAGE 7




CONIIUCTOR II H<ll

CTF' DEPTH HEIGHT MHOS MTRS I1Tr.:S

3

3 3 3 3 3 3 3

3

3 3 3 3 3

3 3 3 3

3 3

3 3 3 3

3 3 3 3 3

3 3 3 3 3

3 3 3 3

570

500 580 580 580 500 580 580

590 590 590 590 590 590

600 600 600 600

610 610 610 610 610 610

620 620 620 620 620

630 630 630 630 630

640 640 640 640

------- -------- ------- -----

[I

A (I

C II [

F G

A B C D E r

A B C D

A B C D E F

A B C D E

A

B C n E

A B C D

3

1 1 2 3 o 1 3

1 1 o 4 o 1

1 o 4 o

o o 4 4 1 2

2 1 4 4 1

o 4 5 1 2

2 1 5 4

109.2

37.6 42.5 53.3 80.1 18.9 24.1 44.9

24.6 21.7 9.5

116.4 23.8 59.5

40.0 13.2 71.3 5.9

11.8 4.3

146.1 190 • .8 36.5 38.5

32.0 38.1 93.7 95.5 25.9

24.6 169.7 143.7 22.8 25.0

23.2 15.5

123.0 88.5

67.7

39.9 38.9 32.3 44.6 41.4 18.5 20.6

22.6 19.4 21.8 41.9 34.3 72.7

4.2

1.5 1.9 3.5 4.4 0.4 1.9 4.7

1.5 1 .5 0.3 8.6 0.8 1.4

3B.7 1.7 20.5 0.6 23.1 8.6 16.9 0.1

13.6 0.8 27.6 0.0 52.7 9.2 55.7 13.0 46.6 1.1 30.3 2.2

22.0 2.5 35.6 1.8 26.3 11.2 29.7 9.9 25.7 1.4

44.8 0.6 41.4 15.7 31.1 17.7 22.9 1.3 12.6 3.5

12.0 3.3 17.1 1.0 25.7 17.8 30.0 8.6

o

o o 5 2 3

20 3

6

10

2 1 o

o 1 o 3

25 2 o 2 3 4

3 1 o o 7

o o o 3 7

8 10 o o

28

39 33 29 28 24 23 36

33 31 31 27 31 30

37 36 35 31

20 20 26 22 26 31

37 32 35 35 30

27 31 30 35 39

39 32 33 33

Estiffiated depth ffia~ be unreliable because the stronSer part of the conductor ma~ be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.


FLIGHT LINE ANOMALY CATEGORYFREQUENCY -4600 INPHASE QUAD*

PAGE 8


MHOS MTRS MTRS

33333

3333

33333

33333

33333

3333

650650650650650

660660660660

670670670670670

680680680680680

690690690690690

700700700700

ABCDE

ABCD

ABCDE

ABCDE

ABCDE

ABCD

0AA02

10A5

A5A01

113A3

22301

31A2

17991031722

2014

10091

821471321517

303310515094

10594911837

5234

12855

.9

.1

.9

.2

.6

,3.5.8,7

,2*4.9.7, 1

.4

.9

.0,4.2

,7.8 2.9.6

.0,6.1.4

2626302114

17222219

2530352312

3239474441

7860362532

21463248

.5

.9

.1

.0

.5

.8

.3, 1.2

.7

.4

.0

.2

.4

,7.1,4.7.2

.4

.4,7.4.4

.8,1.6.8

0111102

10

1516

9191301

116

116

33701

51

132

.7

.9*1.9.4

.5

.6

.8

.4

,4,0,4.7.9

.3

.3

.3,9.3

.3

.9,0,B.9

.6

.1

.9

.2

0004

10

7000

00005

13100

003

104

1000

37333 23436

35363639

3231303744

3328283132

2830282630

36313033

Estimated depth may be unreliable because the stronger pert of the conductor may be deeper or to one side of the flight line* or because of a shallow dip or overburden effects*

PAGE 8

e J8516 EftST ANOMALY LIST ) • CONDUCTOR BIRD

FREQUENCY 4600 CTP DEPTH HEIGHT FLIGHT LINE ANOMALY CATEGORY INPHASE QUAD. MHOS MTRS MTRS _ .... __ .... - ------- _ .. _----_ .... .... _---_ ... -----

3 650 A 0 17.9 26.5 0.7 0 37 3 650 B 4 99.1 26.9 11. 9 0 33 3 650 C 4 103.9 30.1 11 .1 0 32 3 650 D 0 17.2 21.0 0.9 4 34 3 650 E 2 22.6 14.5 2.4 10 36

3 660 A 1 20.3 17.8 1.5 7 35 3 660 B 0 14.5 22.3 0.6 0 3b 3 660 C 4 100.8 22.1 15.8 0 36 3 660 [l t:'

~, 91.7 19.2 16.4 0 39

3 670 A 4 82.2 25.7 9.4 0 32 3 670 Et 5 147.4 30.4 19.0 0 31 3 670 C 4 132.9 35.0 13.4 0 30 3 670 [I 0 15.7 23.2 0.7 0 37 3 670 E 1 17.1 12.4 1 .9 5 44

I 3 680 A 1 30.4 32.7 1.3 1 33 3 680 B 1 33.9 39.1 1 • :~ 3 28 3 680 C 3 105.0 47.4 6.3 1 2B ,- 3 680 11 4 150.4 44.7 11 .9 0 31 3 680 E 3 94.2 41.2 6.3 0 32

3 690 A 2 105.7 78.4 3.3 0 28 3 690 B 2 94.8 60.4 3.9 0 30 3 690 C 3 91.2 36.7 7.0 3 28 3 690 [t 0 18.9 25.4 0.8 10 26 3 690 E 1 37.6 32.4 1.9 4 30

3 700 A 3 52.0 21.8 5.6 1 36 3 700 B 1 34.6 46.1 1.1 0 31 3 700 C 4 128.1 32.6 13.9 0 30 3 700 D 2 55.4 48.8 2.2 0 33

Estin,ated deF'th n,a~ be u r, reI i a b 1 e because the stronSer F'art of the conductor IT,a~ be deeF'er or to orle side of the flight line, or becB'Jse of a shallow diF' or overburden effects.

PAGE

J8516 EAST ANOMALY LIST CLOU FREQ3

FLIGHT


LINE ANOMALY CATEGORY INPHASE QUAD. MHUS MTRS MTRS

111111

2i*Lo4L

'J

222^)2

22 i

22

22222

11

111

1

11

11

101010101010

21212121

3131313131

4141414141

5151515151

6060

707070

80

9090

100100

ABCDEF

ABCD

ABCDE

ABCnE

ABCDE

AB

ABC

A

AB

AB

226022

3623

23062

25342

14A51

52

216

6

40

02

19.214.581.53,311.915.8

21 .588.011.816.2

14,1"14.82.2

117.020.2

15.341 .410,716.99.3

9.425.652,750.58.5

53.311.3

12.08.4

142.1

54.2

15.58.8

6.715.3

41 .020.930.07.7

22.130.6

28.420.220.619.3

25.814.96.0

24.939.4

24.818.59.0

11 .014.2

18.723.143.931 .222.1

28.316.7

23.015.732. 1

19.9

10.733.6

27.727.4

2.33.5

37.50.82.32.4

4.670.92.54.7

2.55.70.5

84.72.7

3.023.86.4

10.82.7

1 .88.1

11,516,61 .2

20.63.0

2.21.9

82.7

33.4

9,70.7

0.52.6

35

112370

7117B

11213092

07

22177

71011127

89

16173

14

- 210

04

243321242832

28222932

2223202126

3533323335

3029192325

2731

182224

23

3025

3128

Estimated depth may b e unreliable because the stronger part of the conductor may be deeper or to one side of the flight line* or because of a shallow dip or overburden effects.

• I

•

PAGE 1

J8516 EAST ANOMALY LIST [LOW FREQl

FLIGHT LINE ANOMALY CATEGORY FREQUENCY INF'HASE

932 QUAD.

CONDUCTOR BIrW CTP DEPTH HEIGHT

MHOS MTRS MTRS

1 1 1 1 1 1

2 '1 ... 2 2

2 2 2 ") .:..

2

'1 "-.

2 '1 ..:..

2 2

2 2

2 2 "'I ".

1 1

1 1 1

1

1 1

1 1

10 10 10 10 10 10

21 21 21 21

31 31 31 31 31

41 41 41 41 41

51 51 51 51 51

60 60

70 70 70

80

90 90

100 100

A [l

C D E F

A [I

C D

A B C [I

E

A It C D E

A [l

C D E

A B

A II C

A

A II

A It

2 2 6 o 2 2

3 6 ') ~.

3

2 3 o 6 2

2 5 3 4 2

1 4 4 5 1

5 2

2 1 6

6

4 o

o 2

19.2 14.5 81.5 3.3

11 .9 15.8

21.5 88.0 11.8 16.2

14.t "14.8

117.0

15.3 41.4 10.7 16.9 9.3

9.4 25.6 52.7 50.5 8.5

53.3 11.3

12.0 8.4

142.1

54.2

15.5 B.B

6.7 15.3

41.0 2.3 20.9 3.5 30.0 37.5 7.7 0.8

22.1 2.3 30.6 2.4

28.4 4.6 20.2 70.9 20.6 2.5 19.3 4.7

25.8 2.5 14.9 5.7 6.0 0.5

24.9 84.7 39.4 2.7

24.8 3.0 18.5 23.8 9.0 6.4

11.0 10.8 14.2 2.7

IB.7 23.1 43.9 31.2 22.t

28.3 16.7

23.0 15.7 32.1

19.9

10.7 33.6

27.7 27.4

1 .8 8.1

11.5 16.6

1 .2

20.6 3.0

2.2 1.9

82.7

33.4

9.7 0.7

0.5 2.6

3

1 1 23

7 o

7 11

7 8

11 21 30

9 2

o 7

"'I? L ••

17 7

7 10 1 1 12

7

8 9

16 17

3

14

. 21 o

o 4

24 33 21 24 28 32

28 22 29 32

23 20 21 26

35 33 32 33 35

30 29 19 23 25

27 31

18 22 24

23

30

31 28

Esti~ated depth ~a~ be unreliable because the stron~er part of the conductor ffia~ be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

PAGE

J8516 EAST ANOMALY LIST CLOW FRE03

FLIGHT


LINE ANOMALY CATEGORY INPHASE QUAD, MHOS MTRS MTRS

11111

1111

11

1

1

11

111

11

11

11

22

222

222

110110110110110

120120120120

132132

141

150

160160

170170170

180180

190190

200200

210210

220220

- 220

230230230

ABCDE

ABCD

AB

A

A

AB

ABC

AB

AB

AB

AB

ABC

ABC

31000

20 ?

2

22

2

2

10

122

20

00

20

03

040

040

273118

713

20

817

18

13

58

87

14

87

105

165

933

5534

4416

.1,2.2,3*9

.4*0.9.9

.1

.4

. 1

.6

.7

.9

.5*7.0

.8,2

*6,4

.4

.5

,9.8

.9

.2

.2

.1

.4

.2

40442

36

1234

30

1432

30

26

1030

231027

1523

3518

2722

3534

184520

202722

.1

.9

.0

.9

.7

.7

.3,5.6

.0

. 1

.8

.0

.2

.8

.7

.8,0

.7,8

.5

.4

.0

.3

*8.1

.7

.2

.8

.4

.5

.3

A1000

2023

22

3

2

10

122

20

00

30

07

0110

0140

.3

.6

.2

.5

.6

.0

.2

.7

.9

.1

.7

.0

.3

*7

.8

.1

.8,3

. 1

.8

.9

.6

.1

.5

.8

.7

,7.2.3

.3

.2

.6

51830410

134250

42

5

2

150

0165

100

00

70

06

37- o

075

2545242724

42254333

3728

27

30

3129

373227

3034

3034

2736

2928

282427

292924

Estimated depth niay be unreliable because the stronger pert of the conductor may be deeper or to one side of the flight l i ne f or because of a shallow dip or overburden effects.

• J

PAGE 2

J8516 EAST ANOMALY LIST [LOW FREQJ



CONDUCTOR BIrnt eTP [IEPTH HE I GHT

MHOS MTRS MTRS

1 1 1 1 1

1 1 1 1

1 1

1

1

1 1

1 1 1

1 1

1 1

1 1

2 2

2 2 2

2 2 2

110 110 110 110 110

120 120 120 120

132 132

141

150

160 160

170 170 170

180 180

190 190

200 200

210 210

220 220 220

230 230 230

------- -------- ------- -----A Il C [I

E

A B C

D

A

B

A

A

A [!

A B

C

A

A B

A B

A B

A D C

A

B C

3 1 o o o

2 o 2 2

2

2

2

2

1 o

1 2

2

2 o

o o

2 o

o 3

o 4 o

o 4 o

27.1 3.2 1.2 1.3 8.9

7.4 1 .0 3.9

20.9

8.1 17.4

18.1

13.6

8.5 7.7

14.0

8.8 7.2

10.6 5.4

16.4 5.5

9.9 33.8

5.9 53.2 4.2

4.1 41.4 6.2

40.1 4.9 4.0 2.9

36.7

12.7 3.3 4.5

30.6

14.0 32.1

30.8

26.0

10.2 30.8

23.7 10.8 27.0

4.3 1.6 0.2 0.5 0.6

2.0 0.2 2.7 3.9

2.1 2.7

3.0

2.3

1.7 0.8

1 • 1 2.8 2.3

15.7 2.1 23.8 0.8

35.5 0.9 18.4 0.6

27.0 3.1 22.3 0.5

35.8 0.8 34.1 7.7

18.7 0.7 45.2 11.2 20.8 0.3

20.4 0.3 27.5 14.2 22.3 0.6

:5 18 30 41 o

1 34 25 o

4 2

5

2

15 o

o 16

5

10 o

o o

7 o

o 6

3 7 o

o 7 5

25 45 24 27 24

42 '") .. -... oJ

43 33

37 28

27

30

31 29

37 32 27

30 34

30 34

27 36

29 28

28 24 27

29 29 24

Estiffiated depth ffiay be unreliable because the stronSer part of the conductor ffiay be deeper or to one side of the flisht line, or because of a shallow dip or overburden effects.

PAGE

J8516 EAST ANOMALY LIST CLOU FREG3

FLIGHT


LINE ANOMALY CATEGORY INPHASE QUAD. MHOS MTRS MTRS

22

222

22222

2o

22

222

222

2oo 3

2

2222

222

222

240240

250250250

260260260260260

270270270270

280280280

290290290

300300300300300

310310310310

320320320

330330330

AB

ABC

ABCDE

ABCD

ABC

ABC

ABCDE

ABCD

ABC

ABC

40

115

52021

0205

501

104

14021

4220

112

102

37.75.5

5.82.738.6

57.710.81.07.93.9

1 .98.51 .6

46.7

48.81.96.0

11.26.7

39.2

15.039.95.66.32.6

12.95.7

16.15.4

7.54.88.7

6.63.28.7

27.714.7

9.65.317.3

29.513.613.211.67,7

5.311,112.020,2

30.19,2

11.9

22.821 ,325,5

37.927.917,78.43,5

7.67.5

21 .915.9

15.08,7

10,1

13,99.39.9

12,10,9

1 .91 .0

23,2

22, 13,70.02.61 .2

0.43.20.0

25.8

16,50,21 .5

1 .90.814.3

1 .613.10,72.71 .8

11,22,63.90.8

1 .61 .53,8

1.40,63.9

80

5275

51801316

201407

841

236

570

1038

292761

620

' 18

08

21

2843

433035

2927333334

32343232

273241

322732

2230344334

28283233

332932

413430


••

)

PAGE: 3

JB516 EAST ANOMALY LIST (LOW FREOJ



CONDUCTOR BIRD CTF' DEF'TH HEIGHT

MHOS MTRS MTRS

2 2

2 2 2

2 2 'J ... 2 ') .L

2 2 2 2

2 2 2

2 ~)

•

2 2 2 2 2

2 2 2

2 2 2

2 2 2

240 240

250 250 250

260 260 260 260 260

270 270 270 270

280 280 280

290 290 290

300 300 300 300 300

310 310 310 310

320 320 320

330 330 330

A B

A B C

A B

C [I

E

A B C II

A B C

A B C

A B C II E

A B C II

A B C

A B C

4 o

1 1 5

5 2 o 2 1

o 2 o 5

5 o 1

1 o 4

1 4 o 2 1

4 2 2 o

1 1

2

1 o 2

37.7 5.5

5.8 2.7

57.7 10.8 1.0 7.9 3.9

1 .9 8.5 1.6

46.7

48.8 1.9 6.0

11. 2 6.7

39.2

15.0 39.9

5.6 6.3 2.6

12.9 5.7

16.1 5.4

7.5 4.8 8.7

6.6 3.2 8.7

27.7 14.7

9.6 5.3

17.3

29.5 13.6 13.2 11.6 7.7

5.3 11.1 12.0 20.2

12.1 0.9

1 .9 1 .0

23.2

22.1 3.7 0.0 2.6 1 .2

0.4 3.2 0.0

25.8

30.1 16.5 9.2 0.2

11.9 1.5

22.8 1.9 21.3 0.8 25.5 14.3

37.9 1..6 27.9 13.1 17.7 0.7 8.4 2.7 3.5 1.8

7.6 11.2 7.5 2.6

21.9 3.9 15.9 O.B

15.0 1.6 8.7 1.5

10.1 3.8

13.9 1.4 9.3 0.6 9.9 3.9

8 o

5 27

5

5 18

o 13 16

20 14 o 7

8 4 1

2 3 6

5 7 o

10 38

29 27

6 1

6 20

'18

o 8

21

28 43

43 30 3~)

29 27 33 3~~

34

34 32 32

27 32 41

32 27 32

30 34 43 34

28 2E1 32 3:5

33 29 32

41 34 30

EstiffiBted depth ffia~ be unreliable because the stronSer part of the conductor ffiaw be deeper or to one side of the fliSht line, or because of a shallow dip or overburden effects.

PAGE

J8516 EAST ANOMALY LIST CLOW FREQD



222

222

33

3333

3333333

33333333

333333

3333

350350350

351351351

352352

360360360360

370370370370370370370

380380380380380380380380

390390390390390390

400400400400

ABC

ABC

AB

ABCD

ABCDEFG

ABCDEFGH

ABCBEF

ABCD

203

125

55

0145

4155100

30451345

443541

0454

49

51056

6196

16

62125

286

118101

513

62

41679

183123

44342099524

2386613

t

4

t

4

4

4

4

*

4

*

4

4

4

t

t

t

*

4

*

4

4

t

4

4

4

t

t

*

4

t

4

t

t

*

t

*

*

609

?

01

67

8054

5966293

12584613

280812

6462

1099

111231

3542

11104858

261774769

147

57

384219181811

29301763488

736339

c

.5

.1

.6

.4

.0

.8

.7

.5,2.4.6

.7,3.6.3.8.3.4

.6

.1

.9

.7,9.7.1.2

.2

.8

.9

.8

.4

.7

.9

.0

.3t. 9

2.20.95.5

1.23.7

19.9

19.231.2

0.11.9

13.331 .4

8.01 .1

21 .216.21 .50.00.9

4,60.49.1

17.81.76.2

15.418.0

14.69.27.5

19.79.91.2

0.58.9

23.88.2

09

20

0234

53

01532

101253

213

14

2513302

101218

74824

23

1640

17

483534

422430

2727

35322625

26232022252435

3931293232323030

283135242624

28293236

Estimated depth may be unreliable because the stronger part of the conductor rosy be deeper or to one side of the flight line? or because of 3 shallow dip or overburden effects.

• I

J

PAGE 4

J8516 EAST ANOMALY LIST (LOW FREQJ



CONIIueTor~ III rw elP [IEPTH HEIGHT

MHOS MTRS MTRB

2 2 2

2 .., ~.

2

3 3

:~

3 3 3

3 3 3 3 3 3 3

3 3 3 3 3 3 3 3

3 3 3 3 3 3

3 3 3 3

350 350 350

351 351 351

352 352

360 360 360 360

370 370 370 370 370 370 370

300 380 300 380 300 380 300 380

390 390 390 390 390 390

400 400 400 400

------- -------- ------- -----

A I~

C

A B

C

A B

A

B C II

A B C II E F G

A It C [I

E F G H

A B C D E F

A B e II

2 o 3

1 2 5

5 5

o 1 4 5

4

1

5 1 o o

3 o 4 5 1 3 4 5

4 4 3 5 4 1

o 4 5 4

• 6.6 4.0 9.9

10.0 56.1

61.6 96.7

1.8 6.0

62.5 125.4

28.5 6.9

118.6 101.6

1.9 3.3

6.1

41.5 67.8 9.4

18.6 31.1 23.3

44.2 34.8 20.0 99.8 52.1

2.6 38.4 66.6 13.2

10.5 9.5 9.1

0.9

11.6 1.2 12.4 3.7 31.0 19.9

35.8 19.2 42.7 31.2

11.5 0.1 10.2 1.9 48.4 13.3 58.6 31.4

26.7 8.0 17.3 1.1 74.6 21.2 76.3 16.2 9.8

14.3 7.4

1.5 0.0 0.9

5.6 4.6 7.1 0.4

30.9 9.1 42.7 17.8 19.9 1.7 18.7 6.2 18.1 15.4 11.2 18.0

29.2 14.6 30.8 9.2 17.9 7.5 63.8 19.7 48.4 9.9 8.7 1.2

7.9 0.5 36.0 8.9 33.3 23.0 9.9 8.2

o 9

20

o 23

4

5 3

o 15

3 2

10 12

3 21

3 14

25 13

3 o 2

10 12 18

7 4 8 2 4

23

16 4 o

17

4£1 35 34

42 24 30

27 27

3 "" ~I

32 26 25

26 23 20 22 25 24 35

39 31 29 32 32 32 30 30

20 31 35 24 26 24

20 29 32 36

Estimated depth may be unreliable because the stron~er part of the conductor may be deeper or to one side of the flisht line, or because of a shallow dip or overburden effects.

PAGE

J8516 EAST ANOMALY LIST CLOW FREQ3

CONDUCTOR BIRDFREQUENCY 932 GTP. DEPTH HEIGHT

FLIGHT LINE ANOMALY CATEGORY INPHASE QUAD. HHOS MTRS MTRS

3

333

333

333

3333

3333

3333

3333

3333

33333

400

410410410

420420420

430430430

440440440440

450450450450

460460460460

470470470470

480480480480

490490490490490

E

ABC

ABC

ABC

ABCD

ABCD

ABCD

ABCD

ABCD

ABCDE

3

655

466

665

4455

4540

0453

4430

0333

42202

23

568050

397167

637581

4067

12634

4764302

2399118

3644437

1262625

1218134

11

.6

.6

.1

.8

.5

.1

.1

.4

.8,0

.7

.3

.8

.7

. 1

.7

.4

.0

.7

.2

.9

.6

.4

.8

.3

.0

.6

.3

.9

.3

.6

.0

.5

.8

.2

32

193929

272825

163045

39585816

37402718

14375622

32475325

18333327

926211720

.0

,1.2.7

. 1

.1

.1

.6

.8

.2

.3

.9

.7,8

.2,3.6.9

.9

.4

.8, 1

.5

.4

.9

.2

.4,3.7.2

.5

.9

.0

.6

.0

4

372517

133234

543222

8113120

111780

08

205

9860

0556

83302

.6

.8

.9

.9

.4

.9

.7

,4.3.0

.7,7,8.3

.8

.8

.5

.0

.2

.7,0,0

.3

.0

.4

.7

.0

.2

.3

.4

.0

.6

.0

.5

.3

7

714

797

700

75o*-

10

6120

0302

4830

0545

-183100

26

303031

302427

293229

24232:531

27303433

34303037

31222530

30282931

3531363437

500 31.2 50.1 4.1 23

Estimated depth tnay be unreliable because the stronger Fart of the conductor may be deeper or to one side of the flight liner or because of a shallow dip or overburden effects.

• I

PAGE C" 0)

J8516 EAST ANOMALY LIST (LOW FREOJ



CONDUCTOR BInD ClP. IIEPTH HE I GHT

MHOS MTRS MTRS

3

3

3 3

3 3 3

3 3 3

3 3 :~

3

3 3 3 3

3 3

3 3

3 3 3 3

3 3 3 3

3 3 3

3 3

3

400

410 410 410

420 420 420

430 430 430

440 440 440 440

450 450 450 450

460 460 460 460

470 470 470 470

480 400 480 480

490 490 490 490 490

500

E

A B C

A B C

A B C

A B C D

A B C II

A B

C D

A II C D

A B C D

A B C

II E

A

3

6 5 5

4 6 6

6 6 5

4 4 5 5

4 5 4 o

o 4 5 3

4 4 3 o

o 3 3 3

4 2 2

o 2

3

23.6

56.6 80.1 50.8

39.5 71 .1 67.1

63.4 75.8 81.0

40.7 67.3

126.8 34.7

47.1 64.7 30.4 2.0

2.7 39.2 91.9 18.6

36.4 44.0 43.3 7.0

1.6 26.3 26.9 25.3

12.6 18.0 13.5 4.8

11.2

31.2

32.0 4.6

19.1 37.8 39.2 25.9 29.7 17.9

27.1 13.4 28.1 32.9 25.1 34.7

16.6 54.4 30.8 32.3 45.2 22.0

39.3 A.7 58.9 11.7 58.7 31.8 16.8 20.3

37.2 11.(3

40.3 17.8 27.6 8.5 18.9 0.0

14.9 0.2 37.4 8.7 56.8 20.0 22.1 5.0

32.5 9.3 47.4 0.0 53.9 6.4 25.2 0.7

18.4 0.0 33.3 5.2 33.7 5.3 27.2 6.4

9.5 8.0 26.9 3.6 21.0 3.0 17.6 0.5 20.0 2.3

50.1

7

7 1 4

7 9 7

7 o o

7 5 2

10

6

1 2 o

o 3 o 2

4 8 3 o

o 5 4 5

·18 3 1

o o

4

26

30 30 31

30 24 27

29 32 29

24 23 2~)

31

27 30 34 33

34 30 30 37

31 22 25 30

30 28 29 31

35 31 36 34 37

23

Esti~ated depth ~a~ be unreliable because the stron~er part of the conductor ffia~ be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

PAGE

J8516 EAST ANOMALY LIST CLOU FREQ]

FLIGHT


LINE ANOMALY CATEGORY INPHASE QUAD. MHOS MTRS MTRS

33333

3333

33333

33333

3333333

3333

33333

333

500500500500500

510510510510

520520520520520

530530530530530

540540540540540540540

550550550550

560560560560560

570570570

BCDEF

ABCD

ABCDE

ABCDE

ABCDEFG

ABCD

ABCDE

ABC

00133

4314

33131

33143

2324141

3423

32542

551

-0.73.915.948.412.7

13.731 .916.678. 1

5.540.414.323.46.7

14.422.211.462.66.3

2.746.69.2

41 .12.416.56.7

20.592.823.241 .3

42.813.054.220.919.2

30.678.28.7

3.731 . 140. 164.313.6

10,044.438.763.1

3.563.735.030.511 .5

17.331 .027.369.04.4

2.671 .816.539.24.310.714.6

18.179.143.959.9

59.121.734.715.028.5

16.745.119.5

0.00.11 .76. 14.9

8.65.01 .9

13.6

7.44.61 .74.81 .9

4.44 .31 .68.56.8

3.05.02.18.91 .1

10,71 .4

7.713.42.95.2

5,62.716.210.23.7

16,620,81,5

0024

17

18702

47419

14

11921

44

56389

34144

16671

265

.107

1423

2225242229

34222725

2821262531

3124282425

28213123283635

26192024

2429283626

292832

Estimated depth tnay be unreliable because the stronger part of the conductor may be deeper or to one side of the flight liner or because of a shallow dip or overburden effects.

PAGE 6

JB516 EAST ANOMALY LIST CLOW FREGJ



CONDUCTOR BIRD eTP DEPTH HEIGHT

MHOS HTRS HTRS

3 3 3 3 3

3 3 3 3

3

3 3 3 3

3

3 3 3 3

3 3 3 3 3 3 3

3

3 3 3

3

3 3 3 3

3 3 3

500 500 500 500 500

510 510 510 510

520 520 520 520 520

530 530 530 530 530

540 540 540 540 540 540 540

550 550 550 550

560 560 560 560 560

570 570 570

B C II E F

A B e II

A

B e II E

A [I

C II E

A B C D E F G

A

B e D

A D C II E

A B C

o o 1 3 3

4 3 1 4

3

3 1 3 1

3

3 1 4 ~~

2 3 2 4 1 4 1

3

4 2 3

3 2 5 4 2

5 5 1

-0.7 3.9

15.9 4B.4 12.7

13.7 31.9 16.6 78.1

.,. "" ~ ..... 40.4 14.3 23.4 6.7

14.4 22.2 11.4 62.6

6.3

2.7 46.6 9.2

4 1 • 1 2.4

16.5 6.7

20.5 92.8 23.2 41.3

42.8 13.0 54.2 20.9 19.2

30.6 78.2

B.7

3.7 0.0 31.1 0.1 40.1 1.7 64.3 6.1 13.6 4.9

10.0 B.6 44.4 5.0 3B.7 1.9 63.1 13.6

3.5 7.4 63.7 4.6 35.0 1.7 30.5 4,(3 11.5 1.9

17.3 31.0 27.3 69.0

4.4

71.8 16.5 39.2 4.3

10.7 14.6

18.1 79.1 43.9 59.9

59.1 21.7 34.7 15.0 28.5

4.4 4.3 1 .6 8.5 6.8

3.0 5.0 2.1 8.9 1 • 1

10.7 1.4

7.7 13.4

5.6 2.7

16.2 10.2 3.7

16.7 16.6 45.1 20.8 19.5 1.5

o o 2 4

17

18 7 o 2

47 4 1 9

14

1 1

9 2 1

44

56 3 B 9

34 14

4

16 6 7 1

2 6 5

.10 7

14 2 3

22 25 24 22 29

34 22 27 25

28 21 26 25 31

31 24 28 24 25

2B 21 31 23 28 36 35

26 19 20 24

24 29 28 36 26

29 28 32

Estiffiated depth ffia~ be unreliable because the stronSer part of the conductor ffia~ be deeper or to one side of the fliSht line, or because of a shallow dip or overburden effects.

PAGE




3

3333333

333333

3333

333333

33333

33333

3333

570

580580580580580580580

590590590590590590

600600600600

610610610610610610

620620620620620

630630630630630

640640640640

D

ABCDEFG

ABCDEF

ABCD

ABCDEF

ABCDE

ABCDE

ABCD

2

2144045

340401

2040

305402

20553

26503

3055

29*2

8,97*9

27,233,01 .9

12.326.3

10.810.91,4

53.83.7

11 .5

10,62.2

38.4-0.3

5*5-4.2

87.592.83,39,0

9*34,9

55.458.211.7

7*6116*595.93.5

10,3

7,50,9

80.549.1

47.8

14.418.319,329,09.88.5

12,4

8. 17.74.4

46,110.224, 1

16. 14.9

26.12.7

4.85.4

47*282,415,114,6

12,314,531 .527,79,7

12,240,643,49.59,8

7*75*3

34*026.3

3.9

2.41.4

11.39.10.18.9

19.2

7.68.20*3

11 .10.71 .9

2,80.713,40,0

4,70.0

23,512.70,32,4

3.30,719,124,46,8

2.344 .630,20.75.4

4.20.0

31 .319.8

0

32

128

103311

2326234

102

320o0

470334

10

9400

23

18007

.13

17903

28

39332928242336

33313.1273130

37363 S31

202026222631

3732353530

2731303539

39323333

Estimated depth mau be unreliable because the stronger part of the conductor may be deeper or to one side of the flislht line* or because of a shallow dip or overburden effects.

PAGE 7

J8516 EAST ANOMALY LIST [LOW FREQJ


932 QUAD.


MHOS MTRS MTRS

3

3 3 3 3 3 3 3

3

3 3 3 3 3

3 3 3 3

3 3

3 3

3 3

3

3 3 3 3

3 3 3 3 3

3 3 3 3

570

580 580 580 580 580 580 580

590 590 590 590 590 590

600 600 600 600

610 610 610 610 610 610

620 620 620 620 620

630 630 630 630 630

640 640 640 640

D

A B C D E F G

A B C D E F

A B C D

A B C D E F

A B C D E

A

II C [I

E

A B C D

2 1 4 4

o 4 co ...,

3

4 o 4 o 1

2 o 4 o

3 o 5 4 o 2

2

o 5 5 3

2 6 5 o 3

3 o 5 5

29.2

8.9 7.9

27.2 33.0 1.9

12.3 26.3

10.8 10.9

1 .4 53.8 3.7

11.5

10.6

38.4 -0.3

5.5 -4.2 87.5 92.8 3.3 9.0

9.3 4.9

55.4 59.2 11.7

7.6 116.5 95.9 3.5

10.3

7.5 0.9

80.5 49.1

47.8 3.9

14.4 2.4 18.3 1.4 19.3 11.3 29.0 9.1 9.8 0.1 9.5 8.9

12.4 19.2

8.1 7.6 7.7 8.2 4.4 0.3

46.1 11.1 10.2 0.7 24.1 1.9

16.1 2.8 4.9 0.7

26.1 13.4 2.7 0.0

4.9 4.7 5.4 0.0

47.2 23.5 82.4 12.7 15.1 0.3 14.6 2.4

12.3 14.5 31.5 27.7 9.7

12.2 40.6 43.4 9.5 9.9

3.3 0.7

19.1 24.4 6.8

2.3 44.6 30.2 0.7 5.4

7.7 4.2 5.3 0.0

34.0 31.3 26.3 19.8

o

3 2

12 9

10 33 11

23 26 23

4 10

2

3 20

2 o

47 o 3 3 4

10

9 4 o o

23

19 o o 7

.13

17 9 o 3

28

39 33 29 213 24 2 :~ 36

3 :5 31

31 27 31 30

37 36 3~"j

31

20 20 26 22 26 31

37 32 35 35 30

27 31 30 35 39

Esti~ated depth ~a~ be unreliable because the stronSer part of the conductor ~ay be deeper or to one side of the fli~ht line, or because of a shallow dip or overburden effects.

FLIGHT


LINE ANOMALY CATEGORYFREQUENCY 932 INPHASE QUAD,


MHOS MTRS MTRS

33333

3333

33333

33333

33333

3333

650650650650650

660660660660

670670670670670

680680680680680

690690690690690

700700700700

ABCDE

ABCD

ABCDE

ABCDE

ABCnE

ABCD

05503

2056

55503

11454

34411

3153

3.60.59.2.8.

6.2.

65.64,

51 ,96,83.2 .6.

5.7,

45,87.50.

39.44.48.4 .8.

22.8.

82,22.

23144

1778

86283

83696

33670

4426

7283478

76

2923

26454476

1214414933

4334338

15

21164021

.2

.8

.4

.4

.3

.9

.2

.4,0

,0.7.0.1.2

.2

.9

.4

.7,9

.9

.8

. 1

.9

.3

,1.5.8.4

0241804

20

2736

21282304

119

2215

7111411

7i

257

.9

.5

.9

.4

.7

.8

.8

.4

.8

.9

.6,7,7.2

.3

.6

.8,1.0

.1

.7

.5

.4

.8

.3

.8

.6

.2

1221

1020

191500

300

1118

911402

247

229

4707

3733323436

35363639

3231303744

3328283132

2830282630

36313033


\ PAGE 8

e J8516 EAST ANOMALY LIST (LOW FREQJ

• CONDUCl'OR BIRD FREQUENCY 932 CTF' DEPTH HEIGHT

I FLIGHT LINE ANOMALY CATEGORY INPHASE QUAIl. MHOS MTRS MTRS - ... _--- ------- ----_ .... _- -----_._- -----

3 650 A 0 3.2 7.2 0.9 12 37 3 650 B 5 60.3 28.8 24.5 2 33 3 650 C c-

~, 59.1 34.4 18.9 1 32 3 650 D 0 2.4 7.4 0.4 10 34 3 650 E 3 8.4 8.3 4.7 20 36

3 660 A 2 6.1 7.9 2.8 19 35 3 660 B 0 2.7 6.2 0.8 15 36 3 660 C 5 65.7 29.4 27.4 0 36 3 660 D 6 64.8 23.0 36.8 0 39

3 670 A 5 51.8 26.0 21.9 3 32 3 670 [I 5 96.6 45.7 28.6 0 31 3 670 C 5 83.2 44.0 23.7 0 30 3 670 D 0 2.8 7.1 0.7 11 37 3 670 E 3 6.3 6.2 4.2 18 44

! 3 680 A 1 5.8 12.2 1 .3 9 33 3 680 B 1 7.3 14.9 1 .6 11 28 3 680 C 4 45.6 41 .4 9.8 4 28

I-3 680 D 5 87.9 49.7 22.1 0 31 3 680 E 4 50.6 33.9 15.0 2 3':)

3 690 A 3 39.3 43.9 7.1 2 28

I 3 690 B 4 44.3 34.8 11.7 4 30 3 690 C 4 48.6 33.1 14.5 7 28 3 690 II 1 4.7 8.9 1 .4 22 26 3 690 E 1 8.0 15.3 1.8 9 30

3 700 A 3 22.4 21,.1 7.3 4 36 3 700 B 1 8.4 16.5 1.8 7 31 3 700 C 0::-

~, 82.2 40.8 25.6 0 30 3 700 r. 3 22.6 21.4 7.2 7 33

Estin,ated depth n,a~ be unreliable because the stror.ger part of the conductor n,a~ be deeper or to one side of the flistht line, or because of a shallow dip or ove rb'J rden effects.

3-2

3.2.2 VLF-EM System

The VLF-EM system was a Herz Totem 1A. This in






210 -340 where NSS (Annapolis, Maryland, 21.4 kHz)

was used.

3.2.3 Magnetometer


precession type. The sensitivity of the in

strument was l gamma at a 0.5 second sampling

rate* The sensor was towed in a bird 12 meters








later correlation.

)

• I

I

~

I ' i

3 - 2

3.2.2 VLF-EM System

The VLF-EM system was a Herz Totem lAo This in-



was towed in a bird 12 meters below the helicop-




was used.

3.2.3 Magnetometer

The magnetometer was a Geometries G803 proton

precession type. The sensitivity of the in-

strument was 1 gamma at a 0.5 second sampling

rqte. The sensor was towed in a bird 12 meters








later correlation.


A Hoffman HRA-100 radar altimeter was used to



maximum accuracy.



flight path on 35 mm film. The camera was op








was recorded:

Channel Input Scale

O Low Frequency Inphase 2 ppm/mm

1 Low Frequency Quadrature 2 ppm/mra

2 High Frequency Inphase 2 ppm/mm

3 High Frequency Quadrature 2 ppm/mm

I

~

3 - 3


A Hoffman HRA-lOO radar altimeter was used to



maximum accuracy.



flight path on 35 rom film. The camera was op-






the data during the survey.· In addition to


was recorded:

Channel Input Scale

0 Low Frequency Inphase 2 ppm/rom

1 Low Frequency Quadrature 2 ppm/rom

2 High Frequency Inphase 2 ppm/rom

3 High Frequency Quadrature 2 ppm/rom

3-4

Channel Input

4 Mid Frequency Inphase

5 Mid Frequency Quadrature

6 VLF-EM Total Field

7 VLF-EM Quadrature

13 Altimeter (500 ft. at top of chart)

14 Magnetometer

15 Magnetometer

Scale

4 ppm/mm

4 ppm/mm

2.5%/mm

2.5%/mm

10 ft./mm

5 gamma/mm

50 gamma/mm

3.2.8 Digital Recorder



follows:

Equipment Interval

EM 0.1 seconds

VLF-EM 0.5 seconds

Magnetometer O . 5 seconds


MRS III 0.5 seconds


A Motorola Mini-Ranger (MRS III) radar naviga


~ I

3 - 4

Channel Input Scale


5 Mid Frequency Quadrature 4 ppm/mm



13 Altimeter (500 ft. at top of chart) 10 ft./mm



3.2.8 Digital Recorde~



follows:

Equipment Interval

EM 0.1 seconds

VLF-EM 0.5 seconds



MRS III 0.5 seconds


A Motorola Mini-Ranger (MRS III) radar naviga-


3-5










!

• j

i

j •

3 - 5





meter accuracy. A navigational computer tri-





4-1







to two established reference locations was measured sev













~ I

I' I

4 - 1







to two established reference locations was measured sev-









sample rate of lO/second with a time constant of 0.1




i 53D16NE000I 2.8893 BORLAND LAKE 300

' -: . "Vi : tv -\r o j

Airborne VLFEM, Airborne MAG Borland Lake Area"f'OsiH'ctor's Licence No.

Sands Minerals Corp. T1957

49 Wellington Street East, Suite 301, Toronto, Ontario M5E 1C9O i'" "- U .r-,ov ' ' r O"' ". H," :Total Miles of line Cut

Aerodat Limited . 18 .04 85. 18 . s04 -85:

.......Gle.nrL.A,,.Boustea.d. B. . .A... .Se../ ..' '

hr—

40

40

ist in ruinio''.c;il secjuencc)V'Vir-.J C:.i-..

see attached si

K Ei C F 1 VP Tt, 1*4 XV L. 14 m \

l 11B0..5.1:

MINING LANDS 'S

D,, y. Cr.

leet

r" r\j rv-

ECTiOr

^cilu

es

MIP i ng C'oim

Prefix. Nun-bCf

•---•---

1 CA ^ .

N- 3o '-^^ LIJ i* ~ .-- .~- . - ^^ fv^ ***

t - - - — -

i

Expend, Days C r.

-—-

-— - ——— -

Total njmhPf of minin s covered byl of WCKk.

v 1 ?^'i)f..'t uf Work ciftrip y.-'(i 'Vrr^fo, nnving peÔrmed t he work

Petras Eitutis, 419 Chatham St. Brâtford.,---Qntar|xîN3S S4J4 ;;-

,.'

J 1111111111111111111 1111 53D16NE0001 2.8893 BORLAND LAKE 9C2>C2>

Airborne VLFEM, Airborne MAG Borland Lake Area

Sands Minerals Corp. T1957

49 Wellington Street East, suite 301, Toronto, Ontario M5E lC9 :Tot..11 Miles Of line Cut

Aerodat Limited i' • '\ti'

• ~ l ' •

,-,--------- ... ' -- -----1 I',. I

, i , "

: ""I'

! 'T"

~. J. !

I ;! I

; (" t:dll~ d,.:..r It',\.. I'. ; "I,,· '1 ,1'1'.J

:~ I ! ., :~.~) :. ~ . 1" " I' { ; :

r-,-- -----------".-,- --- -----,,----_ i,'-, ~), I " ~ ,) \'

r~1 d r t', ,.--~ " ) I I L .".> ' I

40 ~ ! ' " ), '~ :: I ,. ( J: .. :.:.

40 '-- __ . ___________ . ________ . - '_-0-f· > ' ',; I • t I,l! t~'; :" '<: ','Il ,( :1 '') t'!·'.',' ' f~----~~:_:~·:-:~:,_;·-- _ .. :.-------.-- - -. ..--- ------1 ,.. ---.~::-,__;::~::-('~:;-::-:-.------ .. '----. -------" -- ------1

!

• ; I r • ~ '. r it, r •

r"t t' '.','.

i [l',',> (rl' :':'" "r r[ I

, (I' l ,. r,-, ,!t ' qt'l

r 1, i l:l L_ ! [ 1

j

-· ...... ,\.·.·.D1

-.J~J '" _ _ _ _ .. __ . ____ , __ J

.. President

• r ' •• :: 'r' I"~)" \.'~ T::'

18 ,.04 85, 19 \04 ·85

I ~ •

--------------+------1 see attached s eet

REeL JI' , ,. ,..,

\1 i

I '! [' (i r l' ~," • ,> '''') - ",J

MINiNG LANDS ~ fCHOr

lOlal n',Jmhe( ot mining (1,)111'15 covered by nilS

fcpnrt of work.

Expend, Days Cr.

-,---

" ------

50

"--' -... ---- .. --... -------------------.---1

Petras Eitutis, 419 Chatham St.

SANDS MINERALS

MINING CLAIMS

CLAIM NO.

KRL. 823487 KRL 823488 KRL 823489 KRL 823490 KRL 823431 KRL 823492 KRL 823493 KRL 823494 KRL 823495 KRL 823496

KRL 823620 KRL 823621 KRL 823622

KRL 823625 KRL 823626 KRL 823627 KRL 823628 KRL 823629 KRL 823630 KRL 823631 KRL 823632 KRL 823633 KRL G23634 KRL 823635 KRL 823636 KRL S23637

Page l of l

-i -Led ir* Numerical Order

DAYS CREDIT

40404040404040404040

404040

40404040404040404040404040

CLAIM NO. EXPENDITURE DAYS CREDIT

KRL G23638KRL 023639KRL 323640KRL 823G41KRL 823642KRL B23643KRL 823644KRL. 823645KRL 823646KRL 823647KRL 823648

KRL 823653KRL 823654KRL 823655KRL 823656

KRL 823661KRL 823662KRL 823663KRL 823664

KRL 823668KRL 823669KRL 823670

KRL 827G99KRL 827300

4040404040404040404040

40404040

40404040

404040

4040

MINING CLAIMS TRAVE2~~;

1< F.: 1.. .. 82::HD7 f:]':1.. [323488 f:::F:L.. 023413'3 f:::F:I._ 13234')0 f<F:I.._ DZ~491 ~:::F.:l_ O~'231:.l'32

f:::F:L U234';:)3 I<:F<:L fJ::~~34':)4

KkL H:::::3.::J··;)5 KF.:L 8:234'JG

f:::PL O:23f:,:~~O

f:::f;;:L D23621 1<r.::L 823G~7::2

f:::PL_ 0236:25 f:::kL_ U23G:?E, f<F.:L £l23C27 I<PL. G2:::;('~:::8

f:::F.:L 8:235::29 KPL D:;;::3G30 I<I?L 823G31 f:::F:L El23C::)2 1< F~: l.M E~ 2 3 C:.::3 ~3 ~< r::: L._ C] ~:2 3 fl ~::; 1::1·

f:::F::L f323535 Kkl_ H23C:::)f, J<r.::L D2~3b37

D;\ Y ::::; C: i? L: L ::.:'

·-10 ·:::0 ·10

··:I·()

40 ·::10 ·:10 40 40

40 ·::1·0 ,to

40 ·40 40 40 40 40 ·:'1·<)

40 40 40 .::j.(J

·:lO ~l()

i:T:L ~::::::;;C,39

:: F::: L. ;:; ::? :::: C '·1· 0

KF:L.. U2::::C,·:l2 i<:F:L U 2:::lC:, 4:::) I<:F:L. U2::::C44

1:::f,:L B2:::~E>:.HS

f:::RL 0:2::3G47 l<kL... D2:~Go:.lD

f:::r.;:L f.J23E,53 I<F:L 8Z3C54 1< 1:;;: L. E~ ::::j 5~) ~.::; l<h:L G23C~5C

i<t~~:l... F~~;:::'3bGt::~

i<:F:l_ <]:::3fJE;=;:~

i< ::::: L U::':7' C 'j';; I<J<:L 0:27'000

L;< F'Ll'~D I TLH:::E D(\\/~3 Cr;':ED IT

.::1·0 40

40 ·:10 40 40 40 40 ·::1·1)

40

40 40 40 40

40 ·::j.O

·:\.0

40 40

55O

lM fcM U*

O

Ontario

Ministry of Natural ResourcesGEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL

TECHNICAL DATA STATEMENT

File.

TO BE ATTACHED AS AN APPENDIX TO TECHNICAL REPORTFACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

Airborne Electromagnetic/magneticType of Survey (s) ——Township or Area Favourable Lake/Borland LakeClaim Holder(s)——SANDS MINERALS CORP.————————

ft 3m 4Q Wellington Street E. ToronSurvey Company A^rodatAuthor of Report G. A. BousteaclAddress of Author3883 Nashya Dr.. MississauqaCovering Dates of Survey.

Total Miles of Line Cut M /a

10-04-86 to 18-04-85(linecutting to office)

SPECIAL PROVISIONS CREDITS REQUESTED

ENTER 40 days (includes line cutting) for first survey.ENTER 20 days for each additional survey using same grid.

Geophysical—Electromagnetic.—Magnetometer——Rad iometric———Other————^

DAYS per claim

Geological.Geochemical.

AIRBORNE CREDITS (Special provision credits do not apply to airborne surveys)

Magnetometer JJL Electromagnetic ^0 Radiometric N/A(enter days per claim)

Feb. 11/86 DATE:—————————— SIGNATURE:.

Author of Report or Agent

Res. Geol.. .Qualifications.Previous Surveys

File No. Type Date Claim Holder

MINING CLAIMS TRAVERSED List numerically

.gee.(prefix) (number)

MINING

TOTAL CLAIMS 5JL

837 (5/79 1

@) Ontario

Ministry of Natural Resources

GEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL TECHNICAL DATA STATEMENT

File ______ _

TO 8E ATTACHED AS AN APPENDIX TO TECHNICAL REPORT FACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

Type of Survey(s) Airborne Electromagnetic/magnetic

Township or Area __ F_a_v_o_u_r_a_b_l_e_L_a_k_e_/_B_o_r_l_a_n_d __ L_a_k_e ___ ,..-------------.... MINING CLAIMS TRAVERSED

Claim Holder(s) SANDS MINER..7\ .. LS CORP. List numerically

#301 49 Wellington St.eet E. Toron r~

Survey Company ~erodat Limited

Author of Report G. A. Bouatead

Address of Author 3883 Nashva Dr., Mississauga Covering Dates of Survey 10-04-86 to 18-04-85

(linecutting to office)

Total Miles of Line Cut_...,~ ... l,~/A~_-_____________ _

... R.f?~ ... 9.~.t?!.9.h~.g ... 9.b~.~~ .................. . (prefix) (number)

SPECIAL PROVISIONS CREDITS REQUESTED Geophysical

DAYS per claim ................................................................. "i

ENTER 40 days (includes line cutting) for first survey.

ENTER 20 days for each additional survey using same grid.

-Electromagnetic ___ _

-Magnetometer ____ _

-Radiometric _____ _

-Other _______ _

Geological ______ _

Geochemical

AIRBORNE CREDITS (Special provision credits do not apply to airborne .urvey.)

Magnetometer 40 Electromagnetic 40 Radiometric N / A (enter days per claim)

Feb. 11/86 n I·t/Y DATE: _____ SIGNATURE:_-:-"P(~,--,,{f/~~--:----:--_

Author of Report or Agent

Res. Gcol. _______ Qualifications __________ _

Previous Surveys File No. Type

.~~-.----,--------------~ Date Claim Holder

837 (5(791

'01 ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• J

,~ .:: ................................................................. ]

. ................................................................ i ::t

....... R.i.~.~.'.y. .. ~ .. p. ......................... .

.......... F..EB .. l .. ~ .. 19~.b. ............................ .

·'MTNIWC .. tMOS'·SfCTIOH·· .. ········ .... · .. ·· ................................................................. .................................................................

.................................................................

TOTAL CLAIMS_ ..... 5oLJO.t-___ _

GEOPHYSICAL TECHNICAL DATA

GROUND SURVEYS — If more than one survey, specify data for each type of survey

Number of Stations ___________________________Number of Readings — Station interval _______________________________Line spacing ^.—^—.-.Profile scale———^^———..——-——.^^——————..—-—^—.———.—.————.^—.^Contour interval.

Instrument -—^.——..——— Accuracy — Scale constant.

jj Diurnal correction method.

s S

O HSI

O o.

O D Q z;

Base Station check-in interval (hours). Base Station location and value .——

InstrumentCoil configuration Coil separation ^^Accuracy -————Method: CD Fixed transmitter CD Shoot back CD In line CD Parallel lineFrequency——————————————————————————————————————————————————————————————

{specify V.L.F. station)

Parameters measured-—————-—-——-——-—-^^^————^—^-—-———^—^———————-—————.—-^

InstrumentScale constant.Corrections made —.

O Base station value and location .

Elevation accdracyll

Instrument .————————————————————————————————————————————————— Method . CD Time Domain r . D Frequency Domain Parameters - On time ___________________________ Frequency —————

Off time ____________________________ Range.time.

— Integration time.

Electrode array — Electrode spacing .

Type of electrode

GEOPHYSICAL TECHNICAL DATA

GROUND SURVEYS -- If more than one survey, specify data for each type of survey

Number of Stations ______________________ Number of Readings ____________ _

Station interval ________________________ Line spacing _______________ _

Profile scale __________________________________________________ _

Contourinterval ________________________________________________ _

I Instrument ________________________________________________ __

Accuracy - Scale constant _________________________________________ _

Diurnal correction method ________________________________________________ _

Base Station check-in interval (hours)

Base Station location andvalue __________________________________________ _

U Instrument _________________________________________________________ _ -~ Coil configuration _________________________________________ __ Z Coil separation _______ . _______________________________________ _

Accuracy ___________________________________________________________________ _

Method: o Fixed transmitter o Shoot back o In line o Parallel line

Frequency _______________________ ~~~~~--~~---------------------------(specify V.L.F. station)

Parameters measured ___________________________________________________ _

Instrument __________________________________________________________________ __

Scaleconstant ____________________________________________________________________ _

Corrections made

Base station value and location __________________________________________________ __

Elevation acclAraty,\...C--.!..l _c ____ ---"_~ _____ . ________________________ --------_____ _

Instrument ____________________________________________________ _

z Method , 0 Time Do,~"il! I r \ __ o Frequency Domain

Parameters - On time _____________________ _ Frequency _______________ _

- Off time _______________________ _ Range ___________________ __

- Delay time ______________________ _

- Integration time ________________ _

~ Power ____________________________________________________________ _ ~ Electrodearray _______________________________________________________ _

Electrode spacing ___________________ .

Typeofelectrode ____________________________________________________________________ _

SELF POTENTIALInstrument^-——-———-————^—.--—^^———-———^—-—.—^—-——.^^—— Range.Survey Method .^^—--—————^^—---————--——---—————^^—————.-—-——.——

Corrections made.

RADIOMETRICInstrument.——.Values measured .Energy windows (levels)-^-—————-—^--————-———^—---.-.—^————.——..—-.—. Height of instrument_____________________________Background Count. Size of detector-^————^-—.—^--—.—-——-—.^——.-^^—...————..———...—...—. Overburden —..—.-^.—...—.——..—.^^—^...—-.—-..^...-——-^——.—.^^—-..^--—.—.^^-—

(type, depth — include outcrop map)

OTHERS (SEISMIC, DRILL WELL LOGGING ETC.)Type of survey.———..^^———-—^—.——^———..—— Instrument ^^——————————.-^^^———————Accuracy————.——^^—--^—^^——————————Parameters measured.

Additional information (for understanding results).

AIRBORNE SURVEYSType of survey(s) Airborne Electromagnetic, VLF-EM System and MagnetometerInstrument(s) E"Mi Aerodat 3 frequency system; VLF; Herz Totem 1A, MAG;G803

(specify for each type of survey)Accuracy ___ 3 frequencies; 932 Hz, 4600 Hz; 4186Hz; Tx Cutler Maine; l gamma@0 . 5s

(specify for each type of survey)Aircraft ,.^H Aerospatiale A-Star 350D ___________________________________Sensor altitude 3 0 meters

Navigation and flight path recovery method — Geooan tracking oamoraMwao uood to rooord the _________________________ flight path on 35mm film. —————.^————....^—- Aircraft altitndp 60 meters _____________________ Line Sparing 100 meters —————. Miles flown over total arra 820 line km. _____________ Over c]ajms only no ________________

SELF POTENTIAL Instrument ________________________________________________ Range ________________ _

Su~eyMethod _______________________________________________________________________ _

Corrections made ___________________________________________________ _

RADIOMETRIC Instrument __________________________________________________________ _

Valuesmeasured ___________________________________________________ ___

Energy windows (levels) _______________________________________________ _

Height of instrument _______________________________ Background Count __________ _

Sizeofdetector ____________________________________________________ _

Overburden ________________________ -:-_________________________________ _ (type, depth - include outcrop map)

OTHERS (SEISMIC, DRILL WELL LOGGING ETC.) Typeofsurvey __________________________________________________________ _

lnstrulnent __________________________________________________________ ___

Accuracy ______________________________________________________________ ___

Parameters measured ____________________________________________________ _

Additional information (for understanding results) __________________________ _

AIRBORNE SURVEYS Type of su~ey(s) Airborne Electromagnetic, VLF-EM System and Magnetometer

Instrument(s) E-M: Aerodat 3 frequency system; VLF: Herz Totem lA, MAG: G803 (specify for each type of survey)

Accuracy 3 frequencies: 932 Hz, 4600 Hz; 4186Hz; Tx Cutler Maine; 1 [email protected] (specify for each type of survey)

Aircraft used Aerospatiale A-Star 350D

Sensor altitude 30 meter s

Navigation and flight path recovery method Geooan traokin9 oamera:,',;ias used to reoord the flight path on 35mro film.

Aircraft altitude 60 meter s Line Spacing ___ l..wO:"l,O'--lmo.ueW-loto.loe<.olrlo..JsliL-___ _

Miles flown over total area 820 line km. Over claims onIy, __ n_o _________ _

GEOCHEMICAL SURVEY - PROCEDURE RECORD

Numbers of claims from which samples taken.

Total Number of Samples. Type of Sample.

(Nature of Material)

Average Sample Weight———————

Method of Collection————————

Soil Horizon Sampled. Horizon Development.

Sample Depth————— Terrain_________

Drainage Development———————————— Estimated Range of Overburden Thickness.

ANALYTICAL METHODS

Values expressed in: per cent Dp.p. m. p. p. b.

nD

Cu, Pb, Zn, Ni, Co, Ag, Mo, As,-{circle)

Others ————————————.-.———..—.Field Analysis (-

Extraction Method. Analytical Method- Reagents Used——

Field Laboratory AnalysisNo. ——————————.

SAMPLE PREPARATION(Includes drying, screening, crushing, ashing)

Mesh size of fraction used for analysis^^——

Extraction Method. Analytical Method -

Reagents Used——

Commercial Laboratory

Name of Laboratory—

Extraction Method

Analytical Method

Reagents Used -^—^

.tests)

.tests)

-tests)

GeneraL General.

GEOCHEMICAL SURVEY - PROCEDURE RECORD

Numbers of claims from which samples taken _________________________ _

Total Number of Samples ___________ _

Type of Sample· _____________ _ (Nature of Material)

Average Sample Weight ____________ _

Method of Collection ____________ _

Soil Horizon Sampled ____________ _

Horizon Development _____ .,--______ _

Sample Depth. ______________ _

Tcrrain _________________ _

Drainage Development. ____________ _

Estimated Range of Overburden Thickness, ____ _

SAMPLE PREPARATION (Includes drying, screening, crushing, ashing)

Mesh size of fraction used for analysis ______ _

GcneraJ~ ____ ~ ____________ _

ANALYTICAL METHODS

Values expressed in: per cent p.p.m. p. p. b.

o o o

Cu, Pb, Zn, Ni, Co, Ag, Mo, As,-( circle)

Others ________________ _

Field Analysis ( ___________ tests)

Extraction Method ___________ _

Analytical Method ___________ _

Reagents Used _____________ _

Field Laboratory Analysis No. (, ______________ tests)




Commercial Laboratory (, _________ tests)

Name of Laboratory __________ _




General-----------------

SANDS MINERALS C ORPORATION

Lands Management Branch February 12,1986Ministry of Natrural ResourcesRoom 6610, Whitney Block99 Wellesley Street WestQueens Park, TORONTOM7A 1W3

Dear Mr. Pichette:

Please find enclosed form 837, Technical Data Statement, which supplements SANDS MINERALS CORP. Report of Work #2-86.

Also enclosed, in duplicate are copies of the combined Helicopter-Borne Magnetic, Electromagnetic and VLF-EM survey for mining claims KRL 823487 et al.

I trust that this submittal meets wth your requirements.

Yours truly,

SANDS MINERALS CORP.

Petras Eitutis Lands Manager

MINING IANDS

, 49 Weffmgton Street tast, Toronto, Ontario, Canada M5E 1C9 (416) 868-1665

SAN 0 S MINERALS

Lands Management Branch Ministry of Natrural Resources Room 6610, Whitney Block 99 Wellesley Street West Queens Park, TORONTO M7A 1W3

Dear Mr. Pichette:

CORPORATION

February 12,1986

Please find enclosed form 837, Technical Data Statement, which supplements SANDS MINERALS CORP. Report of Work #2-86.

Also enclosed. in duplicate are copies of the combined Helicopter-Borne Magnetic, Electromagnetic and VLF-EM survey for mining claims KRL 823487 et a 1.

I trust that this submittal meets wth your requirements.

Yours truly.

SANDS MINERALS CORP.

Petras Eituti s Lands Manager

RECElV£D F (B 1 2 1986

M\N\NG LANDS SWl \Ott

{( 10 r, 49 Wp((fngton Street tast, 1 monto, Ontario, Canada M5t 1 C9 (416) 868-1665

SANDS MINERALS

MINING CLAIMS TRAVERSED

CLAIM NO.

KRL KRL KRL KRL KRL KRL KRL KRL KRL KRL

823487823488823489823430823491823432823493823434823495823496

KRL 823620 KRL 823621 KRL 823622

KRLKRLKRLKRLKRLKRLKRLKRLKRLKRLKRLKRLKRL

823625823626823627823628823629G23630823631G23KJ2823633823634823635823636823637

EXPENDITURE DAYS CREDIT

GO 80 80 80 80 80 GO 80 80 80

808080

8080808080 GO 80 G*.) 80 80 GO 80 GO

Page l of l

Listed in Numerical Order

CLAIM NO. EXPENDITURE DAYS CREDIT

KRLKRLKRLKRLKRL.KRLKRLKRLKRLKRLKRL

KRLKRLKRLKRL

KRLKRLKRLKkL

KRLKk'Lk PI

KRLKRL

823638823633823640823641823642823643823644823645823646823647823648

823653823654823655823656

823661G23662823663823664

E236G8G236G3823S70

G27893G27300

8080808080GO8080GO8080

80808080

80808080

808080

80GO

• • e I"IINII\11?:i CLAII"IH TI::::i\'vF:r:::nc::n ..... I. .. :i~::.t\,.d in NUI'i'I€~Y'j.ci"l OI"d€.Y'

CL.A I ~1 1\ln.

f~: r,: 1.... El :;;:: ::~ 4 El '7 KI:,:L El:::::;:::401::l f:::f;::L D:?34Cl9 KF;':L f.32::~490 f(F;::L El:;;::3491. f< r.~ L f.3 :;:~ :::: 4 ':;} 2 K F;:: L El ::;:::':: 0::1· .~~ ~~ t:::F~L 0:;;::3494 f(F:L [l:;;::349~S

f(F:L 02:'::'::1·9(; _ ....... - ................................. ..

f:::F;;:L 02:::)620 f:::F,:L El2~';:621 KF<:L 0:2::3622 .. - ........................................ .. ~.

K~~:L El2~:)C2~75 KPL B::::::3C26 KF::L 02:3C2'7 KF,:L B:::::::)f::,::?r::; I<F;;:L D2~=iC,:::::9 f~:kL n::?~:;c,:::,;o

I<PL U:;::::3C~3:l f< F:;: 1.... U :;::: 3 (, ::::: .:::: I<PI... O::::::3C,~::)J K F::: 1.... El ::::: :::: b :::: ,::/ f< F;:: L U :::~ :.:~ c :::)~::; f::: j=::: L.. B::::: 3C :::: f, f:::r:::L U2::;<:;:::,)'7

EX PEI\ID l·I"I...JF:E: D(\ Yb C:F:E:U J T

no GC· DO DO DO DO DO 80 00 00

00 no ElO

flO E10 BO DO HO HO t30 C~!..·)

E:~()

f~()

C~()

(3()

DO

C:I....A I Ivl ND.

I<}:::L U2~:;)C::1El

I<F:L. i:3 :;~ :~.~ (:, ~.~ I:~ 1< F: 1.. .. B :;:~ ~3 C, ,::1· 0 I<:F:L B 2 ~:;) t,; <:1 1. :·:F::L., f.:~ ::~: 3 E, ,~, :;~ I<}:::L.. [:3 ~2 ~3 (:, .:~. 3 1< F;,:L f323G44 I<:F:L 02:3645 l<:r;::1... 82~3G4[' I<PL. B:~::::G4 '7 1< F::: 1.. .. El::::::3648

!< I:::: 1.... B 2 ~7j C ~:::j;:: I<}:::I... 023[,~j4

i:::F:I... D::;::::jE,~:=;5

I<F:L o~:~:::)C~:)c ........................ " .................. -..

1<. I? I.. B>:''/U'09 i<F:L.. :3:;:::'?'~)OO

EXPEI\ID I TUF<:E DAYE) CF<:ED IT

ElO Be)

no DO DO no Be) !:10 GO 80 DO

no DO no no

DO uo

no 00

Mining Lands Section

Control Sheet

File No

TYPE OF SURVEY ^—-tSEOPC"" CAL

____ GEOLOGICAL

____ GEOCHEMICAL

EXPENDITURE

MINING LANDS COMMENTS:"•y* * s

"', J j'tS* /j O /l-;s ' j' .X' ( sy '/ir r/

Signature of Assessor

Date

• Mining Lands Section File No :2 ~iCf '3 Control Sheet

TYPE OF SURVEY L-GEOPI:~' -', :AL --GEOLOGICAL ---GEOCHEMICAL --

EXPENDITURE

MINING LANDS COMMENTS: '" / '

" ( ) J//r tU d /Jt (' . J ,{! ( .(':/ ;U' ""/

Signature of Assessor

Date

REFERENCES

AREAS WITHDRAWN FROM DISPOSITION

MJU). - M INING RIGHTS ONLY

WU). - SURFACE RIGHTS ONLY

M.+ S. - MINING AND SURFACE RIGHTS

177301* | 775017 82393**— — ^. — —— ^ — — —i

Si K "L IT** L l K R L |KftL

779O22 1775021 j T7BOZO

*23523 | *235^4. l 823590— — — — -— ^tL,i 77502* l 77302*V 779030

L— — —J— — —Ita*—HKL IKML

*23928 *23527 *2392*'

7T9O43 TTS042 775041

•235*28233*1 82358O823912 l 823911 t •239*3•239)9 J 823514 i8249l5

*235O* , 823907 . *235Oa l 8-2350*1*25310 l 823973 |82357\f\82OT l 82337* i *23377 | *23S7*~, —.1—.—. — l—. —. — t— — — i— — —— — — —— -^—— —- — — — — —— —-

.,-™^""* I ttMUrt "***** [ 6236*3 j 8236*4 j V.. **l2J?ttU?-S--|^-4-r-^:----!--.——i-,———.- ——-^--—— -l---/-.*2349* *234*7 82334O i*233*t 823982 *239*3

•2399*. aU93*j*233S7 J 823396 [ ^-. ' "~—— — — M. J— — — —- — — — — -^ —"f^,

KHL IKRL INML 1 l '•239*4 !823933 f 823392

L KRL KMU KRL KRL , i -&1) l *"*'j '

4 l 82368* l 823W5 | 823*64 | 8^54*3^?.*^**! 82*649^*14*44'!^

[KML IKRL ~] KRL ~|RML; l KRL -^ |"Rt f fytRi. , '5rX IKML ,

*. g i ' v^ 1 •*lpr*i lAV" l ^ ) i \f3*61 j 825**0 j •2367* f 62343* . *236*O | 8^441 ] 6V34C2. fB64O , ^ -^ | 623642 |62M43V^*A496|

K*L~ ~|i"tl^" (••t *^-~~ ~- —~ ~i~-" ' ~- ~' —~ — ~~j——— .—— fc * m.mi. i mi. l ""L. |K"Ly l KM L y l VPt,

623697 I t^/CS* j •1^991 6^69* | 823636 f 823637 t 62M36 l 6I3*Ja

|7MT~JKRL~l• •.ut |*"L/ l **Ly IKRLy

' j/ v '7li/,.. l •23653 l 8236341 •JM12| 6T36S

i"~*v/ i y r^

XW364* J *T3648 J *a*47 [ 823631 ( 82TOO j 8

IKHL IK*L "Taiit. l**. M"V j* 1 Vf '• c^j 8!3629|6Z3626| 8T3627 |K)

KBL URL P-~ ~~~ ~"O l l

7*3*03 l 7*3907 r •^*3623 l *"K* (823621 [*VUO ' '*M*9

KHL IKRL I**L IKRL IKRL IKRL 'KRLi i

•23*17 i*236l* (8Z34I* 1*23441 1*234*2

KRL J KRL

. y y KL

' X ' V ' J*3623 l •"•22 1823621 I8M6

823614 8236(3 823*I2 82348O 82347*

•23596 t KRL l K*L j""L | KRL l KRL

"•". l l l J

•23*09 823604 623461 823462 623463 {•234641

IKRL IKRL l |6232*6 6232*7KML~

|62K)27 |*21O2*

f 940*44 | 940*4* 940*47

53* 00* 00"

53-

52*52' 30"-J52* 52* 30"

• 4* 15' 00'o o1 oo"

- im

LEGENDNo.

TRAILSSURVEYED LINES:

70WNSHIPS. BASE LINES. ETC.LOTS. MINING CLAIMS. PARCELS, ETC.

UNSURVEYED LINES:LOT LINESPARCEL BOUNDARYMINING CLAIMS ETC.

RAILWAY AND RIGHT OF WAY i UTILITY LINES NON-PERENNIAL STREAM FLOODING OR FLOODING RIGHTS ' 2 SUBDIVISION OR COMPOSITE PLAN RESERVATIONS ORIGINAL SHORELINE MARSH OR MUSKEG MINES TRAVERSE MONUMENT

ms////////////?//'^. '

DISPOSITION OF CROWN LANDS

TYPE O F DOCUMENT

PATENT. SURFACED MINING RIGHTS____.

~ .SURFACE RIGHTS ONLY_______.

.MINING RIGHTS ONLY________.

LEASE, SURFACE St MINING RIGHTS....^™-

" .SURFACE RIGHTSONLY^___.-——

- .MINING RIGHTSONLY..™^—M——.

LICENCE OF OCCUPATION .___.^^^.™^.ORDER-IN^OUNCIL ———^..—-,.^——.

RESERVATION ______A___...._____,

CANCELLED __________._______,SAND 8. GRAVEL __....___.______^..

SYMBOL

T OCC ®O

MOTE: MINING MIGHTS IN PARCELS PATENTED PHlOft TO MAY 8. 1*13. VESTED IN ORIGINAL PATENTEE *V THE PUBLIC LAND* ACT. R-SO. 1*70. CHAP. 360, 8EC. 63. SUBSEC 1.

SCALE: 1 INCH * 40 CHAINS

FEETD 1OOO MOO 4000 60OO •000

O 2OO METRES

1000H KM)

200O 12 KM l

AREA

BORLA K

.ANDM.N.R. ADMINISTRATIVE DISTRICT

RED LAKEMINING DIVISION

RED LAKEUNO TITLES/ REGISTRY DIVISION

KENORA

53D16KE0001 2.8693 BORLAND LAKE 200

Ministry ofNatural '^Management Resources Branch

Ontario

Qat*JANUARY, 1983

• ••••r

G-1741

"~' ..

- -~

REFER ENCES

. AREAS WITHDRAWN FROM DISPOSITION

'IUIA -MINING RIGHTS ONLY

, &.JLO.-:-SURFACE RIGHTS ONLY

IL+ S. -MINING AND SURFACE RIGHTS

D lead -- - D 5 'dwa- ..

'\ ~'~'

:{

t. '~'.

.... L-

III 53D16NE0001 2.8893 BORLAND LAKE

" -, .

.

..

c "

59'

5T

~------ '... '. "\

.. --,~---./ ".

, .J.. .. --.

-' \

-......... -.... \

18'

. I,'

53'

..... :'r, . '''\''

"

'4" II' 00·

/

I

) .I \ > l

\

"'"

14'

.,

•

, \ .I

! ..... -.. --- .... -....... ,.

\" i , ....--L

, - ,~, - , -., .... _r -'- .. ,

oJ,' - " .. -

j '-"-o-'-'~_

•

IS'

. :,

( -.i...

.' .

12'

.:,-

II'

-'';

~.-,' "

!

'- ( ./ \ I "\ .. ! J .~-~

1 ......... -.l.

\.. ...• --", .. - /

~.~

10'

-."-----,,",".

.. '~"~-"'" "

o

.'

(

7'-~", l '. . ''''· .. l

" .... ,., .

. ; .~ ......

7'

.. \ ;

'1

6'

•

\. ....... "\

" ~""'-'-"

'---

-'" -.. _-.

6'

/

4' S'

"\ ,

~.-

I .. "~-1." ,,-

, \

('

2'

"\, \. '-"\

.--

•

I'

, ;

'\ '.

~9'

58'

57'

5S'

5~'

54'

. . -.

52" 52' 10·

.4° 00' 00·

, ' ... ,,-,

•

.j

, -< .' ... '. f: l;lIIiH\IIAY'ANIJIIOUTE No.

. bnterOOAOS

TRAILS

SURVEYED LINES: 1OWNSHIPS. BASE LINES. ETC. LOTS. MINING CLAIMS. PARCelS. ETC.------

UNSURVEYED LINES: LOT LINES PARCEL BOUNDARY MINING CLAIMS ETC.

RAILWAY AND RIGHT Of WAY

UTILITY LINES

NON.f'ERENNIAL STREAM

FLOODING OR FLOODING RIGHTS

SUBDIVISION OR COMPOSITE PLAN

RESERVATIONS

ORIGINAL SHORELINE

MARSH OR MUSKEG

MINES

TRAVERSE MONUMENT

_ ... _._--: . :. .. .. .....

. ---._._-...... --

DISPOSITION OF CROWN LANDS ( ~ ______________________________ -iC

TYPE OF DOCUMENT SYMBOL

PATENT. SURFACE & MINING RIGHTS _______ •

• SURFACE RIGHTS ON LY_____ e ,MININGRIGHTSONLY_____ Q

LEASE. SURFACE & MINING RIGHTS ___ ------ •

- ,SURFACERIGHTSONLY_,___ ~ - • MINING RIGHTS ON l Y .____ g

LICENCE OF OCCUPATION ___ __ ---'" OROER·IN-COUNCIL ______________ DC

RESERVATION __________ ~ ____________________ ~

CANCELLED __________________ ®

SAND & GRAVEL _________ • • ~

IIOTE.: MINtNO IItIGHT'S .N ...... CELS PATENTED "".0" TO ..... ., a, '.,3. VIESTED IN ORIGINAL PATENTEE ." THE PUBLIC \.AIIIOS .... CT. III-S_O. 1.10, CHAP_ -:sao. SEC. 113. SUBSEC ,_

SCALE: liNCH t 40 CHAINS

FEET • '000· 1000

• 200 MIET"ES-

AREA

'000 (1 K .. '

BORLAND LAKE

OIDOO

20G0 t2lU'l

II.N.R. ADMINISTRATIVE DISTRICT

RED LAKE IIINING DIVISION

RED LAKE LAND TITLES I REGISTRY DIVISION

KENORA

~J - Ministryof ',land

Natural "Managemeni Resources Branch

Ontario

'-

G-,1741 ..... , ."U JANUARY, 1983

•

SANDS M INERALS CORPORATION

VLF-EM TOTAL FIELD CONTOURSNSS(Md.)2l.4kHz;NAA(Maine)24.0kHz.

BORLAND LAKE PROJECTONTARIO

SCALE i/10,0001320

J\pril 1985STATIONS'

NAA - Lines 10- 200,350-700

NSS - Lines 210-330

53DXI6,53E/!W AERODAT LIMITED

53DI6NE0001 2.8893 BORLAND LAKE

\

1111111111111111111111111111111111 53D16NE002Jl ;..> AI:l!:.l ElClRLANC _f,~:E

210

o en

'"

,. 'h

. •

•

\ • ,

t , , 'J,' ·i ,

I Y

o "-'"

C <0

'"

--~~-

I •

" i

\ I I \ " { I' ,\y "l,

1

o v

'"

, .

" o 10 en

' .. ,'

• J

o N

'"

. I

.' .... • r • . '

)

I /

, '

.' , ,. ,

•

o <D ~)

LEGFND

, .' J

N Ul

"'

I , f I ,

o N .'<)

50%, ...------

10 % -----.~

Sensor el8vafion. ..49 metres

STATIONS·

o

,

NAA - Lin •• 10- 200,350-700

NSS • Line. 210 - 330

. .

o o "'

. ~

o

'" N

o

'" "

o

'" N

..

o

'" N

o N

o o N

a

~~

o 0"" "'~

\0 \ I-\

t .

U <D

•

l \ \ ~ \-" \

. '

1

I ~\Pl

\-

I •

II

'-' c)

'" m

,

I

I ,

I

, ,

+

c

0 ,

r

SANDS MINERALS CORPORATION _._-_. ----------

VLF·I!M TOTAL FIELD CONTOURS NSS (Md.) 21.4 kHz;NAA(Maine)24.0 kHz.

BORLAND LAKE PROJECT ONTARIO

SCALF 1/10,000 o '330 660 1320

100 200 000 I Ki'ometre

1Dr:~' .April 1985

... _-

.. AERODAT LIMITED r-~ T ~~o ___ u _5~.E/16.53 Ell ___ _

IMAF No 3 J8516

SANDS MINERALS C ORPOR/TIDN

TOTAL FIELD MAGNETIC MAP

BORLAND LAKE PROJECTONTARIO

April 1985

53DXI6,53E7I

2T AERODAT LIMITED ^ T

'MAP No

53D16ME000I a,8693 BORLAND LAKE

\

IIIIIII1

o o

"

, \

o 0> <0

\ ,

220

,

o "W

I,

o CO <0

o en <0

o .., <0

.!

o ,., «)

". '

o «)

o

'"

~f¥' , (, t , .

en 0 ro Ii)

o «) Ii)

o Ii)

"'

'MI"

\.

.... ' -

o N

'"

" I

'" '" Ln 0 Ii)

, 0' .. I ..,'

, (

.-<. -

o Ii) ..,

o ... ..,

..

o N ..,

•

o

, ,

., /'" he

,_ ''r

o .. ,.,

.. ' '" .rtf' ..

/"',/ ;l"',,,r,a~

N ." ,..,

, -c,

Sensor elElI/[]lion

.

'" N ,.,

.------

~ "

o

i f

o ..,

... ( I

,

\

o "' N

-+-~ ,

o N

.... r04<rr--___ ~

T'

5.0+----/

. ,.

o '" OJ

o 0"" 0>

/

/

.+

60520

--

50 ,

o

o a

o m

o . ,

I r

r ,

i

l

r

\ '~'

\

+

a

SANDS "1INERJ\L;, C'ORPOR/.TI)r,

TOT AL FIELD MAGNETIC MAP

BORLAND LAKE PROJECT ONTARIO

'-, C 41 F / IJ,ODc!

n:::3:30~.~6fj:O:::==~'!32:C:' ::;;: .... :::-~==:~_~~! ".".".' '." __ • J ICO 200 000 I ":::il0rTH!tre

~)c.TE April 1985

.. AERODAT LIMITED ~. T S ~Jo 53 D/16 ,53 Ell

\~i\P ~,o 2 J8015

helicopter borne mag emag emag-vlf surv rpt...010 received" r: t 8 1 2 1986 mining lands...

Documents