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GEOSEHRCH COIlSimiinTS LimiTED
42Ht5IC*Me Z.67*2 TOMORROW LAKE 010
Elec tromagnetic, VLF and Magnetic Surveys
for DOME EXPLORATION (CANADA) LIMITED
onProject 159L
Detour Lake Area, Ontario
(To Accompany Maps 83-280 to 83-283)
December 20, 19&3
- l -
INTRODUCTION
A horizontal loop electromagnetic survey, an
EM-16 VLP survey and a magnetic survey were carried out on
Project 159L for Dome Exploration (Canada) Limited in
November, 1983.
The property comprises 16 claims and is located in
the Tomorrow Lake area - Detour Lake, Ontario. The grid is
located approximately 6k miles northeast of Cochrane, Ontario.
Access to the property was by helicopter from La Sarre, Quebec,
The purpose of this survey was to locate conductive
zones which might be related to economic sulphide bodies. No
conductors were located. The accompanying maps show the area
surveyed and the results obtained.
A technical data sheet is appended to this report.
- 2 -
METHOD AND INTERPRETATION OF RESULTS - ELECTROMAGNETIC SURVEY
Operating Principle; When an electrical conductor is subjected to a
primary alternating field, a secondary current is induced in the
conductor. This current produces a secondary alternating field
which together with the primary field produces a resultant field of
different amplitude and phase from the applied primary field. These
differences may indicate the presence of a conductor*
Operation; The battery-powered transmitter sets up a primary field
while the in-phase and out-of-phase (quadrature) components of the
complex secondary vertical field are detected by a receiving coil
and measured by means of a compensator-amplifier unit located a fixed
distance from the transmitter unit. These parameters are expressed
in percentage of the primary field*
Conductor Recognition; The typical curve over a steeply-dipping conductor
shows a low (negative - greater than 5/") over the centre of the
conductor, flanked by positive readings on both sides of the conductor.
Both the in-phase and the out-of-phase components usually produce
the same general shape of curve. An asymmetrical curve may indicate
one or more of the following conditions: (l) more than one conductor
(2) variable conductive overburden (3) a shallow dipping conductor.
Conductivity Determination; The ratio of the amplitudes of the two
measured components, in-phase to out-of-phase, is directly proportional
to the conductivity of the conductor, in areas of non-conductive
overburden .
Conductor Location; For a single conductor, both component readings are
normally zero when either the transmitting or receiving coil is
directly above the conductor. The location of the conductor is cal
culated by adding one-half the distance between the transmitting coil
and the receiving coil (coil interval) to the co-ordinate at which
the readings are zero. A unique solution is generally not possible
in the case of multiple conductors spaced less than one coil interval
apart. This results in the possibility that an apparently wide
conductor may actually consist of two or more narrow conductors.
Depth of Penetration; The maximum depth of penetration for detection of
a steeply-dipping conductor in a geo-electrically neutral background
is about O.? times the coil interval. Over horizontal or flatly-
dipping conductors, penetration of up to 1.5 times the coil interval
is possible.
- 3 -
RESULTS
The horizontal-loop E.M. survey (Map 83-28O) Tailed
to outline an anomalous zone that could be considered a drill
target. The lack or response could be due in part to the fact
that the area is wet, mostly swamp covered and the depth to
bedrock is unknown.
The VLF survey (Maps 83-282 and 83-283) is uninter
esting with no significant response worth drill testing. At
the northern end of Line 6E there is a slight E.M. response.
However, with no corresponding horizontal-loop or magnetic
anomaly this zone is unimportant.
The magnetic survey (Map 83-281) has outlined a zone
with a maximum intensity of 6O,219 gammas on Lines OE, IE and
2E. This feature may continue to the west of the surveyed
area. A minor magnetic feature is outlined on Lines 4E and
5E which appears to have a north-south strike.
On the basis of the geophysical results, no drill
targets are indicated.
Geosearch Consultants Limited
XJQ-rrU#G0-r*
WHT/mm W. H. Thompson P. Eng.
I.
GEOPHYSICAL TECHNICAL DATA
Project 159L
ELECTROMAGNETIC SURVEY
Instrument: Max Min IX
Accuracy: 1^ per scale division
Method: In line
Coil configuration: Co-planar
Parameters measured: The vertical in-phase and out of-phase
(quadrature) components of the secondary field.
Frequencies: 3555 Hz and 888 Hz
Coil separation: lOOm
Number of readings at 25m stations: 1267
Total number of readings: 1267 Line spacing: lOOm
Profile scale: l cm to 1O#
MAGNETIC SURVEY
Instrument: Scintrex Proton Magnetometer
Magnetic field measured: Total
Accuracy - scale constant: i gamma
Diurnal correction method: Proton Magnetometer Recorder
- at 3O second intervals
Base station locations: 4E at 8S
Number of readings at 25m stations: 1269
Total number of readings: 1269 Line spacing: 100m
Contour interval: 25 gammas
II.
VLF SURVEY
Instrument: EM-16 Geonics
Frequency Measured: l?.8 KHz, NAA Cutler, Maine, U.S.A.
Reading Direction: Northeast Quadrant
Accuracy: - 1^
Number of Readings at 25m stations: 1261
Total Number of Readings: 1261 Line Spacing: lOOm
Profile Scale: lcm to 10J6
Fraser filter contour interval: yft
42H1SNEMMS 2.67*2 TOMORROW LAKE
A sctlon Mining t-ands Section
Control Sheet
9OO
TYPE OP SURVEY
MINING LANDS COMMENTS:
GEOPHYSICAL
GEOLOGICAL
GEOCHEMICAL
EXPENDITURE
Signature of Assessor
Date
Ministry ofNaturalResources
Ontario
Report of Work(Geophysical. Geological. Geochemical and Expenditures)
* ISg/tfV-Project 1JJ9L
Mining Act
int.
: ype of Survevls)
If number of mining claims traversedexceeds space on this form, attach a iist.
Note: Only days credits calculated m tnei "Expenditures" section may be entered
l l in the "Expend. Days Cr." columns.?X?y- DiDo not use shaoed areas below.
Electromagnetic, Magnetic fe VLFCiiir- HOIOerls)
_ Dome Exploration (Canada) Limited A21 -
__Box 270, l First Canadian Place, Torontor. Company
Geosearch Consultants Limited
.Date of Survey '.from Si to) 'Tola: M.ies o* nne CUT
2,83 33.3 km Nacre and Ac a r ess o? Author (of Geo-Techmcal report)
W. H. Thompson, Suite 7OO - 88 University Ave.. Toronto M5J 1T6C-ed::s Requested per Each Claim in Columns at right Mining Claims Traversed (List in numerical sequence)Soec a Provu-Ons
Fc- first survey:
enter 40 days. 'This educes line cutting)
Geophysical ' ^^
- Electromagnetic l,
- Magnetometer ^f\
Fc- each acd.tior.a- survey ' K'*'0™'"u; -gthesamegnc. \m? ork
- Othe- VLF 2O Enter 20 days l f or each)
Vj-. Lavs
C". Diete reverse s:oe
ar- . erter ;otal(sl nere
~ir E c--ne Credits
Note: Spec ai provsions
creo:ts do not appi
10 A.rborne Survey
Geological
Geochemical
. Days per Geoonvsicai Oairn
- E.^tromagnet.c
- Magnetometer
- Radiometric
- Other
Geological i
; Geochemical
' Oavi per Claim
Electromagnetic
V ^ : Magnetometer
Radiometric
Expenditures (excludes power stripping)~vce o* Work Performed
i
Caici. ation of Expenditure Days Credits Total
Tc'a' Expenditures Days Crecus
S J*H-irstr-^ctions
To*ai Days Credits rnay be apportioned at the claim holder's cr-.O'Ce. Enter numoer of oays credits per claim selected in columns at right.
'May 3, 1984Recorneo Holder or Agent (Signature)
Mining OamnPre*'n Numoer
P i 628586
t i
—t
128587
528588
28589
;285QO
760712
760713
76071U
. 760715
760716
760717
760718
760719- 76O720 i
.
K L x
' ' i - - ,- : ! ' ~
i - : , l
Expeno. Days Cr.
L)
-
Vinir.g C'a'rn
Prer.x ^UTIOC-
ECOMAY C
BO ppi nw. —,
Total nurr
claims covreport or
For Office Use Only1 otai Days Cr.' Recorced
Date Recorded **j *Z2iJft
R DE C
rfmJAO.
C/C " '
t E u tlAY
A.M.7,8(9TK*r
\
*~
F1
Ir
0
iber oi minmcered oy thiswork.
fe^Jr^t
Expend. Davs Cr.
'
" V \ :u '-:1
im?r*r?r
1
16
. l
1\\''\
t1^80 "J&p.'ZF" H^ZTff-
Certi ; cation Verifying Report of WorkX i /^ \y1 rareby cemfy that 1 have a personal and intimate knowledge of the facts set forth m the Report of Work annexW-ttereto. havmg performed the work or witnessed same curing and/or after its completion and the annexed repon is true.
Kame and Posiai Aooress of Person Certifying
sea, Suite ?OO - 88 Universit Y AV9 ToToiTfcfi m*) .T 1T6Oite Certified |Ce'tL-|eo 5yl5i^^turel
Dec. 20, 1983 Iv^ft A^n^TTi^iMn^
Ministry of Natural Resources File.
OntarioGEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL
TECHNICAL DATA STATEMENTPro .lee t 159L
TO BE ATTACHED AS AN APPENDIX TO TECHNICAL REPORTFACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT
TECHNICAL REPORT MUST CONTAIN INTERPRETATION. CONCLUSIONS ETC.
uzwjj^5
iu. u. O
Type of Survey(s) Electromagnetic f VLF & Magnetic
Township or Area Tomorrow LaUe^-.
Claim Holder(s)___Dome Exploration
tour* T,alce Ar*ea
Ltd.
Survey Company
Author of Report V. H. Thompson
Consul tan-fca Ltrf-
Address of Author Suite 7OO - 88 University Ave*Toronto
Covering Dates of Survey NOV. 4/^3 - Per. 20/^3 ^^(Inecutting to office)
Total Miles of Line r.iit km
SPECIAL PROVISIONSCREDITS REQUESTED
ENTER 40 days (includes line cutting) for first survey.
ENTER 20 days for each additional survey using same grid.
Geophysical
Electromagnetic-
Magnetometer
RadiArrKfric. ..-n,K,r VLF
fwvJngtral
nmrhrmiral
DAYS per claim
ko20
20
-
AIRBORNE CREDITS (Special provision credits do not apply to airborne surveys)
Magnetometer . Electromagnetic . Radiometric(enter days per claim)
20, 1983 SIGNATU
Res. Geol.. .Qualifications.
Previous Surveys File No. Type Date Claim Holder
MINING CLAIMS TRAVERSED List numerically
(prefix)
P .628587..
.628J5.2P..
P•^•••••••
• •••••
.P.
760713.••••••A******4*n*A*
P 76Q7J.4 •••••*A*lr*M*# *M*f**
7.6Q7J.5..
.P.............76Q7J.7..
i Jti i i i 1 1 i i i i 1 1 1 1 0i rio\f tf t li t ri 1
......P.............7/5107.2,0..
......_^......p._.........2/SXJ722.
TOTAL ri AIMS
837 (5/79)
GEOPHYSICAL TECHNICAL DATA
GROUND SURVEYS — If more than one survey, specify data for each type of survey
Mag. EM VLF Number of Stations _____ 1269 __________________ Number of RreHm*126? 126? 126lStation interval 25 metres __________________ Line sparing 1OO metres Profile "-"l- l cm toContour interval VLF filtered - 5#; Mag. - 25 gammas
Instrument Scintrex Proton Magnetometer
Accuracy — Scale constant l gamma ——-————^^^—-^^^-^^———^^^———— Diurnal correction method Magnetometer recorder at 3O second intervals
Base Station check-in interval (hours)Base Station location and value ____Line frE (j 8S. 5912*1 gammas
ELECTROMAGNETIC
Instrument MaT-min II
Cnil r"nfifnir?tiin f!r*-Pl anar*
HoH separation TOO mo-h^** 5
Accuracy l*ja
Method: Q Fixed transmitter O Shoot back QDttn P™,, —— j, 3555 Hz and 888 Hz
4^^Mflfc^F 1 F -tfAftMB)
Parameterc measured The vertical in-phase and out-of-phase
line O Parallel line
components of"the secondary field
Instrument Geonics EM-16_________________________________VLF ~~""~"~"""'"""'"' Frequency megpnred~17-8 KHz—^^—^—^^^--——^^^———^^^^
Station - NAA Cutler. Maine U.S.A.^^-^^—^—^^—
Direction Read - Northeast Quadrant
Accuracy - ±
Line Spacing — 10O metres______Station Spacing —
Profile Scale - l o.m t.o 1O^^^——-^Fraser filter contour interval -
Instrument .——————————————————————————————————————————————— Method D Time Domain D Frequency Domain
Parameters — On time ___________________________ Frequency ——^— — Off time ____________________________ Range ————————— Delay time
— Integration time.
Power —^—^———.^^—^-.——Electrode array — Electrode spacing . Type of electrode .
July 9. 1984 File: 2.6702
Dome Exploration (Canada) LimitedBox 270l First Canadian PlaceToronto, OntarioM5X 1H1
Dear Sirs:
RE: Geophysical (VLF) Survey on Mining Claims P 628586 et al In the Area of Tomorrow Lake
Enclosed Is the plan, In duplicate, for the above-mentioned survey. In order to complete your submission please Indicate the actual readings at each station, and return the plans to this office.
For further Information, please contact Mr. Ray Plchette at (416)965-4888.
Yours sincerely,
S.E. YundtDirectorLand Management Branch
Whitney Block, Room 6643 Queen's Park Toronto, Ontario M7A 1U3 Phone:(416)965-4888
D. K1nv1g:mc
cc: Geosearch Conslltants Limited Suite 70088 University Avenue Toronto, Ontario M5J 1T6
cc: Mining Recorder Timmins, Ontario File: 188-84
Encl.
SEND TO
n n c -: i Y : D
FROM x,t/,^ — ft f*OAT t
SUBJECT
UL.& ff*~* t*aS-u&fc haay*-
fA/yy^ OL^tL 2^ nif
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EPLY tS__youa o^-t*vtot AS~ ~6b aun cucu******* g-tfcO. re^i^L^oj^a^F ^
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FOLD AT MARKS FOB USI INJIT9CMI J* 1O WINDOW l NVE LOK 4
Dome Exploration (Canada) p ( ' BO, 270. . -i^j 1 First Canadian Place LimitSO Toronto. Ontario
M5X 1H1 (416)3643453 Telex 065 24590
Executive Office Jul 25 1934 Telecopier 366 1 775
DELIVERED
Land Management Branch Ministry of Natural Resources Room 6610, Whitney Block Queen's Park Toronto, Ontario M7A 1W3
Attention: Mr. Ray Plchette
Re; Your File Nos. 2.6701 - 2.6703 incl.
Dear Sir:
Further to your letters of July 9, 1984 and our recent telephone conversation regarding the plotting of the actual reading at each station on the V.L.F. Survey plans which were returned with your letters, we indicated, that due to the cost factor, the con siderable amount of time required and the shortage of personnel to post these readings, would delay the return of these plans to you.
We, therefore, request you waive this requirement as to the above-mentioned surveys and we will make certain that future submissions will have all readings plotted as per your requirements.
Tour favourable consideration to this request will be greatly appreciated.
Tours very truly,
DOME EXPLORATION (CANADA) LIMITED
Edward A. Plgulski Assistant Secretary
EAP:ts
1984 05 16 Your Pile: 188Our File: 2.6702
Mr. Bruce HanleyMining RecorderMinistry of Natural Resources60 Wilson AvenueTimmins, OntarioP4N 2S7
Dear Sir:
He have received reports and maps for a Geophysical (Electromagnetic k Magnetometye) Survey submitted under Special Provisions (credit for Performance and Coverage) on Mining Claims P 626566 et al in the Area of Tomorrow Lake.
This material will be examined and assessed and a statement of assessment work credits will be issued.
Yours sincerely.
S.S. YundtDirectorLand Management Branch
Whitney Block, Room 6643Queen's ParkToronto, OntarioM7A 1W3Phone: (416) 965-6918
A. Barr:se
cc: Dome Exploration (Canada) Ltd Box 270l First Canadian Place Toronto, Ontario M5X 1H1 Attn: Ed Pigulski
cc: W. 1. Thompson Suite 70088 University Avenue Toronto, Ontario M5J 1T6
o Dome Exploration (Canada) Limited
Executive Office
DELIVER
May 3, 1984
P O Box 2701 First Canadian PlaceToronto. OntarioM5X1H 1i416l 3643453Telex 065 24590Telecopier 366 1775
Mr. Fred W. Matthews Supervisor, Projects Section Lands Administration Branch Ministry of Natural Resources Room 6450, Whitney Block Queen's Park Toronto, Ontario M7A 1X1
Our Project No. 159-L
Re: Mining Claims P.628586 et al ____- Tomorrow Lake Area (G.1678)
Dear Mr. Matthews:
We enclose herewith, in duplicate, a report and plans by Geosearch Consultants Ltd. (W. H. Thompson), covering an Electro magnetic, Magnetic and VLF Surveys performed on the above-noted 16 claims located in the Porcupine Mining Division.
This submission is made under the Special Provisions Regulations as to 80 days per claim.
Enclosed is a copy of the Report of Work which we forwarded to the Mining Recorder in Timmins, Ontario.
Please date-stamp the enclosed copy of this letter and return it to me.
Yours very truly,
DOME EXPLORATION CCANADA) LIMITED
EAP:ts Enclosures
c.c. Mr. Bruce Hanley
Edward A. Pigulski Assistant Secretary
RECEIVED
MINING LANDS SECTION
o Dome Exploration (Canada)
May 3, 1984Executive Office
REGISTERED
Mr. Bruce HanleyMining RecorderMinistry of Natural Resources60 Wilson AvenueTimmins, OntarioPAN 2S7
Copy For: Mr. Fred W. Matthews
P O. Box 2701 First Canadian PlaceToronto. OntarioM5X1H1(416)364-3453Tetex 065-24590Telecopier 366-1775
CopyOur Project No. 159-L
Re: Mining Claims P.628586 et al -——-Tomorrow Lake Area (G.1678)
Dear Mr. Hanley:
Enclosed is a Report of Work covering an Electromagnetic, Magnetic and VLF Surveys (80 days for each claim) performed by Geosearch Consultants Ltd. (W. H. Thompson), on 16 mining claims as shown on the Report.
We will be delivering the survey report and plans in duplicate, to Mr. Fred W. Matthews. This assessment work is being filed under the Special Provisions Regulations.
Tours very truly,
DOME EXPLORATION (CANADA) LIMITED
EAP:ts Enclosures
Edward A. Pigulski Assistant Secretary
c.c. Mr. Fred W. Matthews
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CONSULTANTS LTD.
DOME EXPLORATION) (CANADA) LIMITED
PROJECT 159 LTOMORROW LAKE 6.,DerDOR AREA.
Seal*- 83-2801
LOCATION: l inch U 'k
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LEGEND
Contour interval
25 gamma contour
1 00 gamma contour
500 gamma contour
Depression .
25 gammas l (O GAMMAS
- A
ABSOLUTE 59,030 X TO PLOTTED
MAGNETOMCTErRby
CONSULTANTS LTD.•for
OOMC CXPIORATION (CANADA) LIMITEDPROJECT 159L
LAKE 6V DETOUR AREA
Oat*.-- L J l? 1 '2600 63-281
2.67*2 TOMORROW LAKE
VLF ELECTROMAGNETIC SURVEY by
GEO5EARCH CONSULTANTS LTD-
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OOMK EXPLORATION (C AM ADA) LIMITED
PROJECT 159 LTOMORROW) LAKE E.; DETOUR APEA
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2.67*2 TOMORROW LAKE 2-40
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PROJECTTDMORROVO LAKE: e., DETOUR
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