EXPLORATION MANAGEMENT AND SERVICES

42A05NE0112 2 .2095 TURNBULL

(70S) 2 35-4027 OR

010

S35-356B

MAGNETIC AND ELECTROMAGNETIC

SURVEY

CONWEST EXPLORATION COMPANY LIMITED

GROUP 11

TURNBULL TOWNSHIP

PORCUPINE MINING DIVISION, ONTARIO

APR 2 3 19/6

PROJECTS UNIT

TIMMINS, ONTARIO JANUARY 1976

PETER T, GEORGE/ P, ENG,, CONSULTING GEOLOGIST

SUMMARY

Linecutting, magnetometer, and electro

magnetic surveys were completed on the property during

December 1975.i'

The surveys were carried out utilizing;'-a

Geometrics G-816 Proton Magnetometer and an Apex -

Parametrics Maxmin II horizontal loop unit (600 foot

cable, 222hz. and 888hz.). - 1

One significant HEM anomaly was located and

drilling is recommended to test the anomaly.

l

INTRODUCTION

Linecutting, magnetic and electromagnetic surveys

were completed on a block of 6 claims in Turnbull Township,

Porcupine Mining Division, Ontario for Conwest Exploration

Company Limited, 1001-85 Richmond St. West, Toronto, Ontario

by GEOEX Limited during the period December 8 to 22, 1975.

A total of 0.79 miles of baseline and 9.64 miles

of grid were cut on the property.

A total of 1115 magnetometer readings and 816

electromagnetic readings were taken on the property.

PROPERTY, LOCATION AND ACCESS

The property is located in east-central Turnbull

Township, approximately 14 miles west of Timmins, Ontario.

The property is most readily accessible by helicopter from

Timmins. Winter access to the property may be accomplished

by snow vehicle from the Malette Lumber Company winter road

through Bristol, Carscallen and Turnbull Townships.

PROPERTY, DESCRIPTION

The property consists of 6 contiguous, unpatented

mining claims numbered P419586 to P419591. The claims were

recorded March 3, 1975 for Conwest {Miners Lie. A20187).

PROPERTY, TOPOGRAPHY

The property has low relief. The southeast sector

of the property has a ridge of low relief{approx. 25') which

may indicate a buried bedrock ridge in the vicinity of the

diabase dike outlined by the magnetometer survey. Spruce

and poplar occur in the area of the ridge. The remainder

of the property is flat, alder and cedar swamp terrain.

-2-

PREVIOUS WORK

Government

Middleton(1974) geologically mapped Turnbull Township during 1969 and 1970 while completing a ground magnetic survey of the township (Middleton 1971). The only other geological map of Turnbull Township was a compilation published in 1957 (Ferguson and Finley, 1957). No outcrop is reported on the property.

Industry

The property has been held intermittently by a number of mining companies since the early 1960's. The only assessment work on file with the Ontario Department of Mines is as follows:

(1) Nor-Scan Mining and Services Co. Ltd.During March and April 1969, MF-1 fluxgate

magnetometer and Ronka EM-l6 surveys were completed that covered the east part of the present property. A north trending diabase dike was indicated by the magnetometer survey and a number of weak VLF-EM anomalies were indicated, all of which appear to be caused by overburden conditions.

(2) Noranda Exploration Limited.

During February 1972, fluxgate magnetometer and fixed transmitter vertical loop (McPhar SS15, 1000hz. and 5000hz.) surveys were completed over all of the Conwest property. The results of the magnetometer survey are essentially the same as the Nor-Scan survey. One weak VEM anomaly was located that correlates with Anomaly D of the present survey.

-3-

PROPERTY, GEOLOGY

Middleton (1974) shows no outcrop within the

boundaries of the property. According to Middleton 1 s

interpretation, the west part of the property is underlain

by granitic intrusive rocks and the east part by dominantly

felsic volcanic rocks with minor mafic to intermediate

volcanic rocks. Two north trending diabase dikes cut the

volcanic rocks. The volcanic rocks in the area generally

have a northerly strike direction and steep to vertical

dips.

RESULTS OF THE PRESENT SURVEY

GRID

A north-south baseline was established south

from the number one post of claim P419591. An east-west

system of grid lines was established with 300 foot line

spacing (NOTE - the east part of line 39S was turned off

at station 40S in error.).

MAGNETOMETER SURVEY

The magnetometer survey was carried out

utilizing a Geometrics G-816 Proton Magnetometer (See

Appendix l for instrument specs.) capable of measuring

total field values for the earth's magnetic field.

Base stations were established at 100 foot intervals

along the baseline and corrections of the survey data for

diurnal variation was accomplished by periodic check

readings at the base stations. Diurnal variation during

the survey was less than 15 gammas. The Main Base Station

was located at 9S on the baseline and had a value of

59740 gammas.

Readings were taken at 50 foot intervals ' along the grid lines.

The sensor head was at an elevation of approximately 10 feet (3 meters) above the ground.

The results of the magnetometer survey are presented on Map l (in pocket).

Magnetic relief on the property is generally less than 100 gammas ( 59700 to 59800 gammas) with the exception of a pronounced, north trending, linear anomaly with magnetic relief of 1000 gammas (59800 to 60800gammas).

The area west of the baseline is essentially featureless magnetically and is probably underlain by granitic rocks as inferred by Middleton (1974).

East of the baseline, low amplitude magnetic anomalies suggest a north to northwesterly strike trend in the underlying volcanic rocks.

The linear magnetic anomaly near the east property boundary is due to a north trending diabase dyke that outcrops to the north and south of the property.

A 225 gamma magnetic anomaly correlates with the HEM conductor located on line 3.6S. Minimum depth to the magnetic source is approximately 175 feet.

-5-

ELECTROMAGNETIC SURVEY

An electromagnetic survey was completed over

the property utilizing an Apex Parametrics Maxmin II

Horizontal loop system.

The coil separation was 600 feet (183 meters)

and two frequencies (222 hz and 888 hz) were read at

each 100 foot station on the grid.

Appendix l contains operating specifications

for the electromagnetic equipment.

Maps 2 and 3 (in pocket) present the results

of the electromagnetic survey.

Two anomalous zones were outlined by the 888hz

data but only one zone was indicated by the 222hz data.

Anomaly A

Anomaly A was located on lines 27S, 308,

33S, and 36S during the coverage survey. Line 36S

produced the strongest anomaly at both 222hz and 888hz.

In-phase response is weak on line 33S and absent on lines

303 and 27S.

Detailed, multi-frequency surveys (See Appendix 2)

on lines 33S, 36S, and 40S indicate that the anomaly

is very weak on line 33S and absent on line 40S.

Analysis of the data for line 36S indicates

a depth of 180 feet, a width of less than 25 feet, a

response parameter of 20, a conductivity-width of

25 to 35 mhos, and conductivity of 2.5 to 4.5 mho/m

for Anomaly A.

-6-

HEM Anomaly A is probably due to a narrow, pyrrhotite-bearing sulphide zone.

Anomaly B

Anomaly B occurs on lines 3S, 6S, and 9S.

The anomaly is outlined by an 888hz quadrature response.

The anomaly is probably due to conductivity within the overburden.

CONCLUSIONS

Only Anomaly A warrants follow-up by diamond drilling. The conductor is less than 25 feet wide, has a near vertical dip, and is buried under 175 feet of overburden.

RECOMMENDATIONS

One drill hole (450' to 500') is recommended to test Anomaly A. The hole should be spotted at 9+50E, 37+25S with an orientation of 045OX-55O .

Respectfully submitted,

Peter T. Getorge, P. Eng., Consulting Geologist.

-7-

REFERENCES

Ferguson, S. A., and Finley, F. L.,

1957 Turnbull Township, District of Cochrane;

Ontario Dept. of Mines Preliminary Map P2].,

Scale l inch to h mile.

Middleton, R. S.

1971 Turnbull Township, District of Cochrane,

Ground Vertical Field Magnetics; Ontario

Dept. of Mines Preliminary Map P638,

Scale l inch to k mile.

1974 Turnbull Township, District of Cochrane,

Geological Map; Ontario Dept. of Mines

Preliminary Map P966, Scale l inch to k mile.

Ward , S . H

1966 The Electromagnetic Method; Mining Geophysics,

Volume 2, pp. 228 - 368, Society of

Exploration Geophysicists.

-8-

APPENDIX l

INSTRUMENT SPECIFICATIONS

r

-9-

Operating ManualModel G-S16Portable Proton Magnetometer

2. Cycle the magnetometer a few times by depressing the READ button releasing and waiting for a reading each cycle.

3. Observe measurement readings. Each reading should repeat - to 1 gamma. (A slow shift may occur over sever^i minutes due to a diurnal change In the earth's field.)

4. Place the suspected article at the distance from the sensor - expected during actual survey operation, '

5. Cycle magnetometer several times and note the readings.

6. Remove the article and repeat steps 2 and 3 to check for diurnalshifts in the earth's field. If a diurnal shift Is present, repeat

. ' entire test. .'. .'

7. If the readings obtained in step 5 differ by more than 1 gamma ( one count) from those obtained in steps 3 and 6, then the article Is magnetic. ' '

IF THE ARTICLE IS HIGHLY MAGNETIC. OR IF THE SENSOR IS INSIDE OR NEAR A BUILDING OR VEHICLE, THE PROTON PRE-

. CESSION SIGNAL WILL-BE LOST, GIVING COMPLETELY ERRATIC READINGS AND LOSS OF 1 COUNT REPEATABILITY.

The magnetometer should not bc operated In areas that are known as sources of radio freo^iency energy, power line noise (transformers), in buildings or near highly magnetic objects'. The sensor should always be placed on the staff above the ground, or in the "backpack". The sensor will NOT operate properly when placed directly on the ground. . :.

1.3 SPECIFICATIONS

Sensitivity: ..

Range:

. ' - Tuning:

Gradient Tolerance

Sampling Rate:

1 gamma throughout range

20,000 to 90,000 gammas (worldwide)

Multi-position switch with signal ampli- ,tude indicator light on display

Exceeds 150 gammas/ft

Manual push-button, one reading each 6 seconds. ' . . . ; P : y

-10-

l

!

Operating Manual -Model G-81C . . , ' .: :

; Portable Proton Magnetometer

Output: 4 . " , .-.

Power Requirements:

Temperature Range:

Accuracy (Total Field):

Sensor:'. . \ - - : '

5 digit numeric display with readout directly ; In gammas " - ,. .'" - ":--.'-t:: . .V .Twelve self-contained 1. S volt "0" cell, ' universally available flashlight-type-bat teries. Charge state or replacement sig nified by flashing indicator light on display.

Console and sensor: r40 to+85 C -Battery Pack: O0 to +800 C (limited use

. : .' to-15O C; lower-temperar' " ' ture operation optional)

. 1 gamma through O0 .to 600 C temperature range . . . ,- ,.- - r. \ .- : ;-..-- ..; •.'•:-High .signal, noise cancelling, interchangeably -.mountedon separate staff or attached to back pack . . . ' ;"- -'-. - - ^; ' y'-: ,': ; -

Console: S. 5 x 7 x 10.6 inches (9 x 18 x 27 cm) Sensor: 4.6 x 6 inches (11x15 cm) ' Staff: - -l inch diameter x 8 ft. length (3 cm x.V-;.;.;''-'; 2.44cm) ' .:/.,-.'.'. :'. ,. . : -.^:*;.

Size:

"Weight: ". v .' ; ' ',:.:."

.J.-. . i.'4 .KA'ENTORy INSPECTION' 'J..; :":....,./,..-,' ' •:.;\.",-:-.. i ::'^-:. -:^i. : ^'-i -,.) *.-When received from'the manufacturer, the 0-816 magnetometer should V--../ '.'include the following items; . .' '- ;/..,-., ; .-..; ;,... : ,- j;-^i ,v;'-.W^X\

. - . .... Console (w/batteries): " 5.5 2.5 Sensor and signal cable: . . 4 . : 1.8". Aluminum staff ... ,.'. 2 ^ 0 .9 :

;. y .l^'- ' G-8I6 magnetometer console . ' '."2.; Sensor - ...', - : -. ..••^•^••'. ^ 3.-."'. Collapsible sensor staff '' ; /':;.; 4. -j Signal cable-staff (long) .. :..'. .",.. .;-' 5. Signal cable-backpack (short) ,.; .6/j Adjustable carrying harness ,^. ,

i : l each .t .1 each

.; - l each Y; ; l each '.\.'.. l each ',- ,\1 each

(7-

.?\\ i-c, '././•^Au-^n FI

. r-*** i;-*:/:!s ..ffi;*, ei w/ ii

r- r-f^-^^-^-M'^.1.^'-^y**;-flc^wr*;'^:*—•^r; "^;--*f"--w*w^^^l"vrT^g

;;,iA*ii^liV.1^"ii5iii'!.;1fiiiri)i'''ii.i -St^^-^A^i^^t-^i&^iS .

a Automatic In-Phase and Gluadrature meter readouts.

L] IVJaximum and minimum coupled modes of operation,

d Four frequencies: S22Hz, 4^-^-Hz, BBBHz and T777Hz.

G Six coil separations: lOQj 2OO, SDO.^OO, SOC3 and BOOft.

n Voice communication link via the reference cable.

l\m'-'f" 'l' \^-- __- ^' i '

II YSa^l-i SP

OPEDERATING FREQUENCIES:

COIL SEPARATIONS:

MODES OF OPERATION:

PARAMETERS MEASURED:

READOUTS:

SCALE RANGES:

READING REPEATABILITY:

RX BANDWIDTH (-3dB):

KX'INTERNAL NOISE:

TX DIPOLE MOMENTS:

RX POWER SUPPLY:

TX POWER SUPPLY:

REFERENCE CABLE:

WEIGHT OF RX UNIT:

WEIGHT OF TX UNIT:

OTHER MAIN FEATURES:

222, 444, 883 and 1777HZ

100, 200, 300, 400, 600 and 800 feet

(a) Tx coil plane and Rx coil plane horizontal {Horizontal loop mode).(b) Tx coil plane horizontal andRx coil plane vertical (Minimum coupledmode).

In-Phase and Quadrature component of the secondary field..

Automatic, direct readout on 3V size meters.

In-Phase: 201 normal, ilOO'fc by switch. Quadrature: 20% normal, 100% by switch. Inclinometers: 501 tilt.

±h* to tl.%

0.2 Hz nominal -

Negligible

150 Atm2 @ 222 Hz, 150 Atm2 @444 Hz, 75 Atm2~.@~888 -Hz,-.50 Atm2 Q..1777 Hz.

Four 9V batteries (transistor radio type)

Three 6 V alkaline lantern batteries in a separate battery pack. Optionally one 12V 8Ah. rechargeable Gel Cell.

Light weight, low friction unshielded cable. Unit supplied with 200, 400 and . 600 ft cables, other lengths optional.

13 Ibs.

30 Ibs.

Built-in Intercom system for communication between receiver and transmitter unit. Signal and reference warning lights to indicate erraneous readings.

FOR MORE INFORMATION,

PHONE C416) 431-6388 OR WRITE TO;

255 YQRKLAND BLVD., WILLOWDALE, ONTARIO, CANADA M2J 1S3

-13-

APPENDIX 2

DETAILED HEM DATA

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CO oo

1777hz.

888hz.

.i4,————4

.1777hz

,888hz

444 hz

222 hz

'-4-

,--H™—-J———-l———-*-——H——— +

2 E 4E 6E 8EConductor

14 E 16 E 18 E

DETAILED HEM LINE 36 SApex Maxmin I HEM 400'Cable

Scale 1*^200'

.444 hz

.222hz

PN.

——.1777hz

^___-4———t-—__j. --.-——H————-H————4-———— -h ————^—————^——; mfr- ————^————f.™^..^——..4.——.-r*——"" ,, ...l..,, ,i , ,.,; . — 4————4————-+RRRK7

I—+——"__l___—•*-—:—|—'——•'————*___.4.. ..4. ^44 hz

I3S' - - v: --^ : - .. .

rn" . __—222hz

^J' ' •••" ' - ;- - '. '

4E 6E 8E 10 E 12 E 14 E 18 E 20 E

DETAILED HEM LINE 40 SApex Maxmin H HEM

Scale . f !|200' r-20%

;^r, **?^fc"-.

-^——————4,—————h————

222 hz -—— 4-

1 E 4E 6E SE

,..- ,..4t.

16 E2 E 14 E

DETAILED HEIV1 LINE 36SApex "Maxmin-IT HEM 200'jCabIe

Scale f*200' r*200Xo

.\777\n

.888hz

.222hz

18E .

12A05NE0112 2 .2095 TURNBULL 900Ontario

. ! \, j M*;, -; "Ii : "' : k' f 4:^;^-, V'S:

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

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

Type of Survcy{s) Township or Area Claim Hnlder(s)

Magnetic and Electromagnetic Turnbull Township ________Conwest Exploration Co. Ltd.

Survey

1001-85 Richmond St. W. ,Tornto. GEOEX Limited, Timmins, Ontario.

Author of Report _ P.T.George, P.Eng.Address of Author P.O.Box 70, Tinunins, OntarioCovering Dates of Survey Dec. 18yIg75l-97Jan. l , 1 976

{linecutting to office)

Total Miles of Line Cut 10.43

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_.—Radiometric———Other______

DAYS per claim

Geological.

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

Magnetometer. .Electromagnetic.(enter days per claim)

DATF.-Jan. 8, 1976 SIGNATURE:

ia

Res. Geol.. .Qualifications.

V(03. 23 f G

Previous Surveys File No. Type Date Claim Holder

MINING CLAIMS TRAVERSEDV

P419586

P419587

(prefix) - n*""" 1(number)

P.4195?9.

~ l ^

\ "l cWy/o

l

GEOPHYSICAL TECHNICAL DATA

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

Number of Stations Mag, 11 15, HEM 4 0ft

Station interval Mag. 5 Q'.f HEM 100!_____ Profile srale HEM r'

.Number of Readings Mag. 11 l 5 r HEM•jont HEM 816 .Line sparing 300 .———-I..———.———

Contour interval Mag. 25 gammas below 59800, 100 gammas above 59800 gammas

o

O

Instrument Geometrics G-816, Proton Magnetometer——————Accuracy — Scale constant j; l gamma—-—^—-————.^^—-..^.^-—---———-———Diurnal correction method Base stations established on baselineBase Station check-in interval (Hours) 0.5 to 1 .0 hrs.—————.———...—.Base Station location and value Main Base Station, 0+00. 9S. 59740 gammas

.ECTROMAGNETICInstrument . Apex P^ram^t-T'i ^^ Mayrii n IICoil ronfigiiratinn Horizontal LOOp

Coil separation gQQ feet

Arrnrary + l %

Method: d Fixed transmitter D Shoot back Frpmipiif-Y 322h!7.. and R 8 8hz.

2Q In line D Parallel line

WParameters measured.

(specify V.L.F. station)

and uadrature

O

Instrument ——

Scale constant.

Corrections made.

Base station value and location,

Elevation accuracy.

Instrument ^,——.^—^ Method |~~1 Time Domain

INDUCED POLARIZATICParameters — On time

i* Off time

> — Delay timei— i J H W — Integration time

W PowerPH

Electrode array .Electrode spacing

Tvne of electrode

Frequency

Range

Robb TP (M.309)

- Mt. Rutledgt ' *— /. . V"

392382 |3S\2339L --—

P;

4l959r"r"4T9586 94462 '94197 , 94196 'J ^94195 j 94194

, P 'P

42397B j '423*77 l

(444^44J444442 J

J ^ ' 4IOZ45 i 410242T "t~P~~~Tp~" ~

410263 1410260 | \,— —— — i-* — — — \Ip |R l V

410256 4 10255 410239 — f- ——-i — — — —l— — — — Pi IP , P

1410257 .410254 , [410241

Carscallen Tp (M.267)2.2895 TURMBULL 200

00Cd

CL

(Dk-

•4--oOO

K.Koianvv

THE TOWNSHIP OF

TURNBULLDISTRICT OF COCHRANE

PORCUPINEMINING DIVISION

SCALE: 1-INCH-4O CHAINS

LEGEND

PATENTED LAND •or© CROWN LAND SALE C.S.LEASES ©LOCATED LAND Loc-LICENSE OF OCCUPATION LO.MINING RIGHTS ONLY M.R.O.SURFACE RIGHTS ONLY S R.O.ROADSIMPROVED ROADSKING'S HIGHWAYSRAILWAYSPOWER LINESMARSH OR MUSKEGMINESCANCELLED C.

PATENTED FOR SURFACE RIGHTS ONLY

NOTES400* Surface Rights Reservation along the shores of all 'lakes 8 rivers

This township lies within the Municipality Of CITY of TIMMINS.

DATE OF, ISSUE

APR 281976

SURVEYS AND MAPPING

PLAN NO M-3I6

ONTARIO

MINISTRY OF NATURAL RESOURCESSURVEYS AND MMrr^'C B P *NCH

a A a il

Legend

Measurement stations along picket lines

Total magnetic field (in gammas)

Main base station

CONTOUR INTERVAL; 100 gamma* abovt 59,800

25 gamma* below 59.800

MAP lMAGNETOMETER

SURVEY

5———t———S——————5 tf ffi S Ji u" -J -j ^, ffi -J

GROUP 11

TURNBULL TOWNSHIP

TIMMINS AREA, ONTARIO

NTS 42 A5, 12

CONWEST EXPLORATI C O. LTD

S P. T. G5ORG

GEOEX LIMITED O. B9K 7O.

IMMIN S, ON 1A R IOEXPLORATI ON MANAGEMENT A ND SERVICES

42A05NE0112 2.2095 TURNBULL 210

K—— __-i ~ "i- - -

Legend

PROFILE SCALE: l i nch to

INSTRUMENT: APEX Poromatrie* MAKMIN2

600' cobl*

MAP S HEM SURVEY

BBS Hz

GROUP 11

TURNBULL TOWNSHIP

TIMMINS AREA. ONTARIO

NTS 42 A5, 12

CONWEST EXPLORATION C O. LTDS CA L E - l INCH

GEOEX LIMITEtXPLORATION MANAGEMENT AND SERVICES

P C i. Bti'X 7O,

TIMMIN S, ON TAR lO

(7O51 267-3990

42A05NE0112 2.2095 TURNBULL

Legend

See Map 2

MAP 3M SURVEY-..x---

GROUP 11

TURNBULL TOWNSHIP

TIMMINS AREA. ONTARIO

CONWEST EXPLORATION

GEOEX LIMITED

42A05NE0112 2.2395 TURNBULL 230