1I016SW0060 2,, 265 HEENAN

010

GEOPHYSICAL REPORT on a

MAGNETOMETER SURVEY,,,-..,,.~--r,

Mineral Claims S-353911-923 incl. and S-359145

HEKNAN TOWNSHIPsu nivu R Y "MI N TNG i ri vi" s i ON

ONTARIO NTS: 41-0-16

p.A. KKLLY P.Eng. JU1.Y 11,1973 1'al conbri dgc Nickel Mines Limited

l 67 Wil son Avenue Timmins, Ontario

ABSTRACT

16^05 li ne/mi le s of magnetometer survey covering twelve claims

located in south-east Heenan Township was carried out under contract

during May and June 1973.

The claims cover a sequence of Archean calc-alkaline-thoelites

mantled by Algoma-type iron formations. These formations are folded in a

west plunging anticlinal structure trending east-west.

The survey outlined the position and orientation of the iron

formation but the intense magnetic response of these rocks probably ob

scured further delineation of volcanic stratigraphy adjacent to the mag

netite-bearing zones.

The structure of the rocks underlying the property appears to be

an overturned, west plunging, east-west trending anticline. The axial plane

dips steeply north-northwest.

Additional detailed geological mapping and mercury geochemistry is

recommended.

James A. Kelly July 11, 1973

PROPERTY:

(a) Total number of claims

(b) Recorded numbers

(c) Dates of Recording

(d) Staked by

(c) Status

Twelve (12)

S-353911 - 921 incl; S-359145

June 14, 1972 (S-353911 - 921)

June 27, 1973 (S-359145)

Fred Blake and Garfield MacVeigh

S-353911 - 21 twenty (20) days due June 14, 1973 (extension granted to Dec. 31, 1973

S-359145 - twenty (20) days due June 27, 1974

2) LOCATION:

(a) Township

(b) Mining Division

(c) N.T.S.

(d) Latitude

(e) Longitude

(f) Additional Data

Heenan and part of Marion

Sudbury

41-0-16

47 0 47' N

82 0 21' W

48 miles due east of Chapleau Ontario

3) OWNERSHIP:

(a) Recorded Owner

(b) Address

(c) Interest

Falconbridge Nickel Mines Limited

P.O. Box 40, Commerce Court West, Toronto, Ontario

1007o transferred to Falconbridge, June 30, 1972

4) ACCESS:

(a) Summer - via f loat equipped Beaver aircraft to Woman River k, mile

south of junction with Opeepeesway River then via trail \

mile to west-northwest.

- via canoe from Jerome on Opeepeesway Lake. The Eddy Forest

Products road from Jerome to Rush Lake is no longer usable as

all bridges were removed in 1971. The canoe route involves at

least 21 portages.

(b) Winter - via helicopter or snowmachine from base on Rush Lake. Ice

conditions on the Woman River would be hazardous for ski/wheel

equipped aircraft. It is probable that winter logging trails

from the Eddy company operations in Mallard and Benton Twps.

might penetrate the area thus permitting use of

Bombardier tractors. The extent and location of such routes

is not, known at this time, however.

5) HISTORY:

The Woman River iron formation, an oxide-sulfide volcanogenic exhalite

deposit has been the center of exploration activities in the area.

These iron formations have been extensively trenched sampled and drilled by

Jefferson Mining Corporation later Central Sudbury Lead-Zinc Mines Limited

and still later as Stackpool Mining and Holding Limited. Initial work was begun

in 1910. Efforts to date have outlined pockets containing moderate tonnages of

low grade iron. Minerology of the iron-bearing zones is too diverse, however, to

yield economic metal concentrates by present methods.

Elsewhere in the general area some gold and base metal activities have occurred

from time to time. ]n 1946 Fummerton Mining did some, exploratory work on 16 un-

patented claims to the west of Claim Lake. Results, if any, are not known.

During 1971 and early 1922. discovery of a "porphyry copper" occurrence led

to a staking stampede in the Rush Lake area (Marion, Genoa, Mallard and Eric

Townships). Nothing of economic or academic interest was uncovered and most

claims were allowed to lapse.

Renewed prospecting activities on gold occurrences in the Swayze-Dore-Heenan

area are reported to have taken place in recent months, however.

The area was mapped by A.M. Goodwin during the 1961 and 1962 field seasons.

The final report, G.R. No.38 and map, No. 2067 (l" = \ mi.) was published by the

O.D.M. in 1965.

6) GENERAL GEOLOGY:

The claims cover a section of acid to intermediate volcanic rocks overlain

by oxide and sulfide bearing iron formation and basic flows. All consolidated

rocks in the. claim group are of Archean age.

Northwest trending faults cut and locally displace the sequence southwest

of the property. Weak to moderate foliation in the area strikes about S60 to

700E .

Within the claim group the volcanic sequence occuppies the north limb of a

regional anticline which strikes and plunges westwards through southern Heenan

Township 4

Sources of Information

O.n.M. Map /7 2067 - Heenan, Marion and Northern Part of Genoa

Township; A.M. Goodwin, 3966

7) MAGNETOMETER SURVEY:

(a) Grid

(1) Baseline - Rearing N42 0 30'E, length - 11,000 feet

(2) Crosslines - bearing N47 30'W, length - 82,150 feet (@ 200' intervals)

(3) Ticlines - bearing N42 O 30'E, length - 2,600 feet

Total line/miles cut - 16.05

(4) Stations - 1779 @ 50' intervals

(5) Tie-in - the base line intersects the Heenan-Marion township line

but exact survey co-ordinates are not known.

(6) Personnel - under contract by Fred Blake, P.O. Box 187, Temagami, Ontario

(7) Dates - May 20 to June 12, 1973

(b) Magnetometer Survey:

(1) Purpose - to outline the volcanic stratigraphy

(2) Instrument - Scintrex MF-2, a battery -powered transistorized,

direct reading instrument which reads the vertical

component of the earth's magnetic field.

(3) Sensitivity - ^)or (-) 20 gammas/ scale division

(4) Theory of Method - the fluxgate magnetometer employs a satuarable core

system which consists of two highly permeable metallic

strips about which primary coils have been wound. An

alternating, low frequency field (l KH z) is applied

Lo these coils through an oscillator. This field is

sinusoidal and drives the strips into saturation during

each half cycle resulting in an even rate change of

permeability of the cores or strips ( at 2 KH z).

Any ambient magnetic field acting on this system yields

a phnse variation or flux which, when gated at a certain

frequency (in this case the second harmonic), induces

voltage pulses in an adjacent seconadry winding. These

(5) Procedure

(6) No. of Readings

(7) Personnel

(8) Covering J)':tes

- 4 -

pulses are amplified, fed through a phase dector

and emerge as a D.C. signal. As this signal is directly

proportional to the strength of the ambient field, the

strength of the exterior magnetic field can be read

directly on a voltmeter calibrated in gammas.

The accuracy of the Scintrex instrument is within

n.5% of full scale between 1000 and 10,000 gamma range

and within 1.070 between the 10,000 to 30,000 gamma

range.

- a magnetic base station was established between lines

50 and 52N on the east boundary of claim S-353913

(see map). From here auxilliary base stations were

established. Readings were then taken at 50 foot

intervals with traverses so arranged that the auxill

iary stations could be re-read at least every hour.

In this manner diurnal and instrument drift variations

were established and the appropriate corrections made.

The final magnetometer survey map is presented as

Figurelattached to this report.

1779

under contract by Fred Blake. P.O. Box 187, Temagami

magnetometer readings : June 14 to 24th., 1973

drafting and report preparations June 27-30 and

July 4 to 6, and July 9 to 11. 1973 ^

8) RESULTS;

As expected, the location, strike and dip of the iron formation are well

established. Unfortunately, the intense magnetic response due to these formations

would tend to mask any weaker anomalous zones in underlying formations.

Within the underlying volcanics, areas of more siliceous rocks appear to underly

portions of claims S-353918 -914 and S-353920

- i) -

9) CONCLUSIONS and RECOMMENDATIONS:

The magnetic survey has delineated the zones of iron formations within

that portion of the volcanic pile covered by the twelve claims.

The zone of negative response striking E-W along the southern boundary

appears to be caused by a flat magnetic body, probably the iron formation.

If. this is the case the magnetic patterns would indicate an overturned

anticlinal structure whose axial plane strikes and plunges west-southwest

and dips steeply north-northwest.

It is recommended that detailed geological mapping and mercury geochemical

propspecting be crrried out on these areas lying east of the iron formations.

Respectfully submitted,

A. Kelly,'P.Eng. T& lconbridge Nickel Mines Limited July 9, 1973

GEOPHYSICAL - GEOLOG TECHNICAL DAT,

•noiesweaee a .iaes HEENAN 900

S ZO aV)^

g Sb O

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

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

MagnetometerType of Survey——

Township or Area. Claim hnlrlrr(s)Falconbridge Nickel Mines Limited

Heenan

P.O. Box 40, Commerce Court West, Toronto, Ontario

Author of Report James A. Kelly_______^_____

Address 724 Churchill Street, Timmins, Ontario

Covering Dates of Survey May 20 - July 11. 1973————(linecutting to office)

Total Miles of Line rut 16.05———^——.————————

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, j

-Magnctometcr—L--Radiometric——Ji^

-Other________

DAYSper claim

Geological.

Geochemical. 6AIRBORNE C REDITS (Special provision credits do not apply to airborne surveys)

Magnetometer. .Electromagnetic. . Radiometric(enter days per claim)

DATE- July 23, 1973 SIGNATURE:

PROJECTS SECTION Res. Geol. -—————Previous Surveys /t,,

Qualification.!?.

jUXby. .date.

GEOLOGICAL KRANCH

Approved by. -date.

GEOLOGICAL BRANCH.

Approved by. -date.

MINING CLAIMS TRAVERSEDList numerically

353911S(prefix) (number)

...S.........................35391.2,

..3.5.3.9A.3..

.S.,.......................353915,

.8..........................353916.

.S..........................353912,

.S..........................353918.S 353919

S

S

353920

353921

-^SatASr

TOTAL CLAIMS———ii.

Show instrument technical data in each space for type of survey submitted or indicate "not applicable"

GEOPHYSICAL TECHNICAL DATA

GROUND SURVEYS

Number of Stations—— 1779 .Number of Readings. 1779

Station interval. Line

50 Feet

spacing. 200 feet

Profile scale or Contour intervals,———-

MAGNETIC

Instrument ____Scintrex MF-2

1000 gammas(specify for each type of survey)

20 gammasAccuracy - Scale constant———Diurnal correction mrthnH main base with auxllliary stations readings to give diurnal curveBase station location on east boundary of claim S-353913 between lines SON and 52N——————

ELECTROMAGNETIC

Instrument-,————-——---——.^—-—-^-—-——.—^-^----—^———---^-———.^—-—-----——————-^.^^-----—————.Coil configuration ————-—-———————.——.-——-—-—————..—.^——...^———.——.—————.———.—^——Coil separation----^—,-—^—.—.^^-.—--^-.——.-—-—^————.——-.—^^.^.———^——.-.^—^—.—--———..———.Accuracy^__^^_^_______^_________^__.______^__^____^^___^____^_^_^^—______^^^__.Method: CH Fixed transmitter d Shoot back d Inline O Parallel lineFrequency.

(specify V.L.F. station)Parameters measured. GRAVJ'i'Y

Instrument ——————

Scale constant.Corrections made.

Base station value and location.

Elevation accuracy-——————--————————- INDUCED POLARIZATION - RESISTIVITY

Instrument.Time domain. Frequency__ Power————.

Frequency domain.. Range————^—-

Electrode array.-— Electrode spacing. Type of electrode,

File

GEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL TECHNICAL DATA STATEMENT

RECEIVED

J UL 2 5 1973

C

JH J ZOwCflO WuI-"-mcm

TO BE ATTACHED AS AN APPENDIX TO TECHNICAL REPORT SECT"" FACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

Type nf Survey Magnetometer

Township or Area HeenanClaim hnlHrrM Falconbridge Nickel Mines Limited

P.O. Box 40, Commerce Court West, Toronto, Ontario

Author of Report James A. Kelly

Address 724 Churchill Street, Timmins, Ontario

rnvprinp na * M nf Survey May 20 - July 11, 1973(linecutting to office)

Total Miles of Line rut 16.05

SPECIAL PROVISIONS DAYS CREDITS REQUESTED Geophysical per etata

- -KlfrirnmaanerirENTER 40 days (includes line cutting) for first -Magnetometer —— 95 —————

' survey, ~Radiom*Mrir, ,

F.MTKR 2 0 d ays for each -Otheradditional survey using r;pMlr,mralsame grid. Gpfichfi-nifal

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

Vlagnetomeier K]prlrnmnpnetir Radinrnetrir(enter days per claim) J s

riATK: J"!y 23, 1973 siniSIATIIRK: ( ^^/J^AujKbr of Report orient

PROJECTS SECTION

Res. Geol. Qualifications ^ ,e^^ 1

Previous Surveys

Checked hy date

OKOT.OniCAl.KRANCH

i A pproved hy date

oKomnir-ALKKANrn

Approved h y .,,.,, . Hate.

MINING CLAIMS TRAVERSED List numerically

S 353911(prefix) (number)S 353912

...............S............................353SA3........S 3.53914

...............8............................353SA5........

,..,.........S............................353916.......

S O COQ1 7

S . . ... ...........353918.......

...............S............................353919........

S 35392Q

,.........,..S............................353921.......

...............S............................3591A5........

TOTAL CI, A IMS 12

If space insufficient, attach list

Show instrument technical data in eacli space for type of survey submitted or indicate "not applicable"

GEOPHYSICAL TECHNICAL DATA

GROUND SURVEYS

Number of Stations _____ 1 779 ——————————.———^————— Number of Readings _____ 1779Station interval _____ 5 0Line spacing _____ 200 feet

Profile scale or Contour intervals _______ 1000 gammas(specify for each type of survey)

MAGNETIC

Instrument ____ Sr.-infrpy ————. MF-? ——.—..^—————^^.^^^Accuracy - Scale constantDiurnal correction mrtlmri main base with auxilliary stations readings to give diurnal curveBase station Inratinn on east boundary of claim S-353913 between lines SON and 52 N _____

ELECTROMAGNETIC"Instrument ——-—-—.————————.————-——..-—^——-————-—.——..———-——.^———.—..^^-——^Coil configuration Coil separation -—.Accuracy ———^^Method: Q Fixed transmitter CD Shoot back CD Inline CD Parallel lineFrequency ^^^^^-^^^^^^^^.^^^-^—^^^^^^^^^^^,..^^^^^^^^^^--.—^.^.^^^^^^^^^^-^^^^^^^^^^^-—.^-

(specify V.L.F. station)

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

Instrument.Scale constant.Corrections made.

Base station value and location.

Elevation accuracy——————————————INDUCED POLARIZATION - RESISTIVITY

Instrument.Time domain___________________________ Frequency domain.Frequency_______________________________ Range——————. Power______________________________________j———^——.Electrode array.-— Electrode spacing- Type of electrode.

CD on ru

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fr

ui x

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NEWTON TWP.

Appro*

82"20'45"

BENTON TWP. M -659

THF TOWNSHIPor

HEENAN

DISTRICT OFSUDBURY

SUDBURYMINING DIVISION

SCALE: M NCH 40 CHAINS

LEGEND

PATENTED LAND

CROWN LAND SALELEASESLOCATED LANDLICENSE OF OCCUPATIONMINING RIGHTS ONLYSURFACE RIGHTS ONLYROADSIMPROVED ROADSKING'S HIGHWAYSRAILWAYSPOWER LINESMARSH OR MUSKEGMINESCANCELLED

C.S

©Loc.LO,

M.R.O. S.R.O.

—O—

NOTES

400 Surface rights reservation around the shores of all lakes and rivers.

- MINING LANDS *DATE OF ISSUE

JUL31 1973

MINISTRY OF NATURAL RESOURCES

PLAN NO M-925(ATARI*)

MINISTRY OF NATURAL RESOURCESSURVEYS AND MAPPING BRANCH

4ioi6sw00ea 2.1255 HEENAN 200

C/l

Xm m

h-

cr

v" 1

OJ LO

<

41016SWe068 2 .1265 HEENAN

a AIM y

- - ? w

LOCATION MAP

Scale ' ''p Tiiw

AIM f

T*T

?M

INSTRUMENT' M* Phor M-7OO Serk)l N" 7167

- -4IO Measurement s tation on picket l ine

-140

- -ISO

-670

- -1,280 Relative value of vertical component of earth's magnetic f ield in gammas

--2,680 fl .

-I.4IO

--4SO

A A

Main C ontrol S tation*

Secondary. Base Station

Magnetic Contour

Magnetic Depression

Contour By - J. A. Kelly

Contour Interval.' - 5, 000 .-4,000 , -3 .000 ,-2 , 000 , -l , 000 , Ol .000 , 2 , O OO , 5, OOO , IO, OOO , 20,000 , 3 0 .000 , 40 ,OOO, 50,000 , 60 .000 , 80,000 gamma*

lFALCONBRIDGE NICKEL MINES LTD,

HEENAN PROPERTYHeenan

SUDBURY MINING DIVISION

MAGNETOMETER SURVEY

?0*. 400

vey June 7 3

Fred Blake

Drawn R r ' D E La*t

N O ' 16