phelps dodge corporation of canada, limited ......simplify field operations. it is a sophisticated,...
TRANSCRIPT
if^;
a.isae SQUAW LAKE 010
RECEIVED
MAY 9-1973PROJECTS SECTION
PHELPS DODGE CORPORATION OF CANADA, LIMITED
REPORT ON A
MAGNETIC AND ELECTROMAGNETIC SUEVEf
SQUAW LAKE AREA
PATRICIA MINING DIVISION
ONTARIO
by
R. V. Woolham
B.A.Se., ?. Eng.
April .1973
S2J82SE87e9 2.1228 SQUAW LAKE 010C
TABLE OF CONTENTS
Introduction
Location and Access
Ceneral Geology
Survey Procedure
Results
Conclusions d Reconmendationa
Pag* So.
l
l
l
l, 2 6 3
364
4
Certificate
Maps (In Pocket)
Introduction
The survey claim block consists of 80 contiguous ,. . ^k
claims, numbers Pa 331856 - 94, Pa 331898 - 900, Pa 337901 - J*7337^(2.
Pa 337925 - 30. Pa 337933 - 42, Pa 311911 - 17, all Inclusive
and Pa 349030 - 31. They are situated in the Squaw Lake area,
Patricia Mining Division, District of Thunder Bay.
The linecutting and surveys vere performed by A.
Janes Walker, survey contractor, under the direction of R. V.
Woolham between February 6 and March 1. 1973.
Location and Access*
The claims lie in the northeast arm of Sturgeon Lake
just vest of Squaw Lake. Access is by aircraft to Sturgeon
Lake, or by snowmobile from Savant Lake.
General Geology
Referring to O.D.M. Map 12169, 4 mile compilation
series, the area of the claims is underlain by felsic tneta-
volcanics and intrusive gabbro vith surrounding mafic meta-
volcanics. The apparent strike direction is northnorth"east.
Survey Procedure
The surveys were carried out on a picket line grid
with a line spacing of 400'. The baseline is a north 30* east
direction through the central part of the claim group.. Picket
lines vere cut east and west of this baseline at right angles
to it. A sub baseline vas cut 4COC" vest of the main baseline
for better line control. Chainage pickets vere placed t*try 100*.'-j : ~ ' ' " ' '"'l t h . . ' .
on these lines. Pickets placed on the ice portions of the claim
V l 1 ', -' ' -4-J ' '
- 2 -
group were recovered on completion of the survey.
Approximately 66 Biles each of electromagnetic and
magnetic survey were completed over the grid. Readings were
taken every 100* except where anomalous values occurred in
which case intermediate 50 foot stations were read. Approx
imately j,530 magnetometer readings and 3.A40 electromagnetic
readings were obtained in this way.
The instrument used for the E.M. survey was a Geonics
E.M. - 17 horizontal coil electromagnetic unit using a coil
separation of 400* and a frequency of 1.600 Hz. The Instrument^mMM^^^^^^^^^^^^^^^^^^^^^B^V^^^^^^^^^^Vio^^^^^v^^^^H^^^ ^^^^V
measures the in phase and quadrature component of the secondary
field produced by the transmitting coil. Values are read as a
percentage of the primary field. Negative values below back
ground indicate conductive material while the relative response
of the two components to each other is a measure of the con
ductivity of the anomaly.
The instrument used for the magnetometer survey was a
Sharpe fluxgate magnetometer model M.F. - l with a sensitivity of
20 gamma per scale division. In order to correct for diurnal
variations, base stations were established along the baseline,
as indicated on the map. The time between base station checks
was kept to within one-and one half hours.
The results of'the surveys are plotted onj sets of five
separate maps at a reduced scale of one inch equals 400 feet.
The magnetometer values,are contoured at an interval of 200 gamma
on a separate set of maps. The E.M. values are plotted in profile
ffi.-3-
fora as indicated on the legend. These maps are contained
in a folder at the back of this report.
Results
The electromagnetic survey did not detect any anomalous
responses. Slight variations in the in phase and out of phase
responses can be attributed to rough topography, surficial over
burden effects or slight instrument drift.
The magnetometer survey outlined numerous linear
features in the east half of the claim block. These linears
vere generally oriented in a north northeast direction. On
the average their amplitudes were 2000 gamma above background
with isolated anomalies sometimes reaching two to three times
this amount.
To the west the magnetics are quite flat except for
local anomalies scattered throughout the area having amplitudes
of a few hundred gammas. In the extreme west side of the claim
group the magnetic activity appears to increase slightly with
some fairly definite linears developing.
A reconalssance geological survey was carried out last
fall on this claim block area. Comparing this mapping with thej
magnetics shows that the high amplitude magnetics are caused
by basic volcanics which are for the most part east of the main
baseline. The magnetic linear extending across sheets 2 and 3
Just west of the baseline is coincident with an iron carbonate
breccia. The essentially flat magnetic area in the west central
ita/jV" 'j - 1". , .Vini * '"-i*--,
^Wjft :.J;-vV' l S*'
- 4 -
section of the group occurs over an area which is mainly under
lain by intermediate to felsic volcanics.
Conclusions and Recommendations
Significant amounts of conductive material are not
present on this claim block at least to the depth of exploration
of the E.M. unit used (approximately 200*,)
The bagnetics outline horizons of iron formation and
basic volcanics. If interesting mineralization is encountered
in further prospecting the magnetics could be useful in tracing
any associated horizons. An induced, polarization survey would
be necessary, however, to delineate any zones of possible
economic interest defined by prospecting.
Further work on this property is not recommended
unless specific base metal mineralization of Interest is present.
CERTIFICATE
I Roderick W. Woolham of the City of Toronto, Province of Ontario do hereby certify:
1) That I am a geophysicist and reside at 87 Homestead Road, Vest Hill, Ontario.
2) That I graduated from the University of Toronto in 1961 with the degree of Bachelor of Applied Science.
3) That I am a member of the Association of Professional Engineers of the Province of Ontario (Mining Branch).
A) That I have been practicing ay profession for a period of more than 11 years.
5) That I am employed by Phelps Dodge Corporation of Canada,Limited.
6) That I personally directed the execution of this survey.
April 1973•fA'" W . Woolham 'B.A.Se., P. Eng.
52J02SE87e9 2.1228 SQUAW LAKE 900
GEONICS LIMITED2 Thofncliffe Park Drive, Toronto 17, Ontario, Canada. Tel. (416) 425-1821, Cables: Ceonics
AUTOMATIC READOUT
HORIZONTAL-LOOP ELECTROMAGNETIC UNIT
The EM J7 incorporates the latest electronic techniques in an automatic-readout, simple-operation equipment designed for practical field work.
FEATURES
9 Automatic meter readout 9 L ightweight coils0 Excellent noise suppression in difficult conditions: Survey can be carried
out in the vicinity of power lines 100,200,300 and 400-foot coil separation Thin, lightweight, unshielded reference cable between coils Provision for use in coaxial-loop mode as well as in horizontal-loop mode Powered by easily obtainable flashlight batteries
I^CSFJfc'lsyS tepftS^v^S-**
SPECIFICATIONS
Coil Orientation
QiuntitiM Measured
Rang* of ScilM
Coil Separation
Frequency of Operation
Method of Reading
Readability
Repeatability
BemtoMth of the Rec*h*rSyitem
Transmitter Output
Power - Receiver
Tremmitteri
Co-planar or co-axial
Real component (in-phase)Imaginary component (quadrature)
Real: 20X, HOOKImag.: 10X, t 50*
100, 200, 300 and 400 !t.
1600 Hz (W - 104 )
Self -indicating meter* for eachcomponent. No manual compematkxi attar initial nulling M start of survey.
0.25X Imag.. 03* Real on narrower acaies
1*
O.I Hz
2.5W.24At-m1
8 cells, type CLife 20 hrs. com. duty
8 cells, type OLHe 20 hrs. com. duty
Type of Reference Cable
Dimensions- Recehrer Console
Receiver CoH
TransmitterConsole
Transmitter Coil
Weights - Receiver Console
Receiver Con
Transmitter Console
Transmitter Co*
Ttitnnt*iei IM^jek*OVevV^HIef VWiym
Inrtniment Supplied with
Lightweight, 2-wir* cable, no shield
7.7 x 5.3 x 10.2 inches(19.5 x 135 x 26. cm)
25 inches (63 cm) diameter
535 x 3.15 x 10.2 inches(15x8x26 cm)
25 inches (S3 cm) diameter
6.83 (bs. (3.1 kg)
6.4 Kx. (2.9 kg)
6.62 IDS. (3.0 kg)
7.92 Ibs. (3.6 kg)
68 Ibs. (31 kg)
Consoles in leather cases (tropicalized); receiver and transmitter coil* with carrying harnesses; tOO*. 200*. and 400*reference cabletf two console to-coilconnecting cable* and one spare; manualof operation; set of interpretationcurvet: one set of batteries Installedand one apart tat; field shipping CM*
~N
n f^Nj 7?
^ jb^-^sj^.'O
J .
COMCMTOOO*
COMPLETE EM17 UNIT RECEIVER CONSOLE DETAILS
SIMPLE AUTOMATIC-READOUT OPERATIONThe horizontal-loop electromagnetic method is, of course, a well-known and standard method of geophysical mineral exploration. By combining the very extensive previous design experience of Geonic's staff in this method with the company's proven original and advanced approach to geophysical instrumentation, the EM 17 horizontal-loop unit offers unique technical features, which greatly simplify field operations. It is a sophisticated, reliable, sensitive and accurate instrument which can easily be handled by the normal type of field crew following the proper operating procedures as set out in the instruction manual.
Because of the excellent noise suppression the EM17 can be operated effectively in difficult areas such as the immediate vicinity of wer lines where other horizontal-loop models have been unable to produce useful data. The added feature of being able to use the
istrument in a coaxial-loop mode, as well as the standard horizontal-loop mode, is quite valuable. For instance in the coaxial-loop mode, vertical dykes at the greater depths will tend to produce more discernible anomalies.
The following condensed set-up and operating procedures indicate the comparative simplicity of using the EM 17. Check the above photographs of the instrument as an aid in understanding these:
(1} Decide the coil separation you are going to work at and connect the appropriate reference cable to the receiver and transmitter console terminals. There are no connectors involved, the color-coded bare cable ends are just inserted in the correct terminal posts and the caps tightened. A simple snap arrangement allows the cable to be fastened to the coils to bear the strain. The thin, lightweight, unshielded, two-wire reference cable is easily handled by the operators while on line even at the 400-foot coil separation.
(2) Connect the transmitter and receiver consoles to their respective coils with the short connecting cables provided. The con sole-to-coil connecting cables are similar for both the transmitter and receiver ends so that identification and spare parts problems are eased.
(3) Turn the "VERT/HOR" switch, on the transmitter console to the operating mode desired. "VERT" is the coaxial-loop mode and "HOR" is the horizontal-loop mode.
(4) The next step is the electronic nulling of the receiver console. Turn ON the transmitter. On the receiver console switch to the correct coil separation position, switch to the "NULL" position and turn the receiver "ON". Release the locks under the "NULL" knobs and adjust both indicator meters to zero, then lock these knobs securely.
(5) Switch to the "OP" position on the receiver console. On neutral ground and with the coils at the correct coil separation, unlock the "COMP" knobs and adjust the "REAL" indicator meter to zero, if needed, then lock this knob securely. Although not usual, there may be a reading showing on the "IMAGINARY" indicator meter at this stage. This will probably be due to the general area ground conductivity particularly at the longer coil separations. The "IMAGINARY" indicator meter can be zeroed by a control adjusted by a screwdriver if you know the ground is not conductive
(6) You can now switch to the "OP"{erate) position, and the "REAL (in-phase) and "IMAGINARY" (quadrature) component meters will automatically indicate the correct readings at your station positions. There is a 20*fc push-button under the "REAL" component meter and a 10* push-button under the "IMAGINARY" meter. If applicable, these can be pressed for increased reading accuracies within their range. Note the lower scale on each of the indicator meters for this purpose.The above are the basic procedures. The instruction manual naturally fills out the details including battery and other checks to be carried out during the operating day to ensure proper functioning of the unit, but these do not interfere with the field work ing program.
Tht manufacturer nstmu the rights to etang* the tpfcifiationt without notice.
AUTHORIZED AGENT:
l FLUXGATE MAGNETOMETER
A first order fluxgate type vertical com ponent magnetometer. Advanced transis torized circuitry and extensive temperature compensation is the core of Its accuracy comparable to precision tripod mounted Schmidt type magnetometers.
it is a hand held instrument and needs only coarse levelling and no orientation, features such as direct reading of gamma values and the possibility of accurate iero setting at base stations ensure simplicity of operation and higher field economy.
The Model MF-1 Fluxgate Magnetometer is designed for accurate ground surveys in the mining industry as well as a basic component for air surveying by small aircraft Technical data and comparison charts available on request
P E C I If I C A T I 0 N S
MAXIMUM SENSITIVITY!
IANCE1 WU KHO
20 {smmas (per tcali division) on 1000 gtmnu nn|*.5 fwuiui W* tcali divljlwi on 1000 range.
1,000 fimmas3,000 ganunis
10,000 guntnti30,000 gunmu
100,000 fammj*
MAXIMUM RANG*
LATITUDE ADJUSTMENT RANGES,
DIMENSIONS: (INCLUDING BAHERy CASO WEIGHT) (KiClUOIJIO BATTERY CASO
* 100,000 gamma*10,000 to 75,000 gamma), Northern hemltphin convertible toi10,000 t* 75,000 gammai, Southern hemlsphiri or * 30,000 gammas equatorial,7" x 4' l U'
9 Ib*.12 flashlight Batteries ("C" eelD.
I H V O I C E
Mar. 28, 1973
Phelps Dodge Corporation of Canada Ltd., Suite 1106 - 55 Yonge St., Toronto, Ont.
IH ACCOUNT WITH A. James Walker, 2111 Davebrook Bd., Mississauga, Ont. C 5* J 3M4
Pro .le c t 132 Sturgeon Lake
Linecutting Base Linea 6.74 miles @ 590.00 S 606*60 Section Lines 66.15 miles @ fi75.00 4962.95'
Magnetometer Survey 66.15 miles @ S60.00
Electromagnetic Survey 66.15 milea @ 390.00 Electromagnetic Survey Test 1.77 miles @ 290.00
Less 40 miles previously invoiced
Less share of cabin rental C A. Housseau )
o*
J( Oil
3969.00"*
5953.50159.30.
*15651.35*v
9000.00 r*
*6651.35 J/
150.00
^6501.
' w
Clain No.
Pa 331856 Pa 331857 Pa 331858 Pa 331859 Pa 331860 Pa 331861 Pa 331862 Pa 331863 Pa 331864 Pa 331865 Pa 331866 Pa 331867 Pa 331868 Pa 331869 Pa 331870 Pa 331871 Pa 331872 Pa 331873 Pa 331874 Pa 331875 Pa 331876 Pa 331877 Pa 331878 Pa 331879 Pa 331880 Pa 331881 Pa 331882 Pa 331883 Pa 331884 Pa 331885 Pa 331886 Pa 331887 Pa 331888 Pa 331889 Pa 331890 Pa 331891 Pa 331892 Pa 331893 Pa 331894 Pa 331898
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Claim Ho.
Pa 331899 Pa 331900 Pa 337901 Pa 337902 Pa 337903 Pa 337904 Pa 337905 Pa 337906 Pa 337912 Pa 337913 Pa 337914 Pa 337915 Pa 337916 Pa 337917 Pa 337918 Pa 337925 Pa 337926 Pa 337927 Pa 337928 Pa 337929 Pa 337930 Pa 337933 Pa 337934 Pa 337935 Pa 337936 Pa 337937 Pa 337938 Pa 337939 Pa 337940 Pa 337941 Pa 337942 Pa 311911 Pa 311912 Pa 311913 Pa 311914 Pa 311915 Pa 311916 Pa 311917 Pa 349030 Pa 349031
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ffiGEOPHYSICAL - GEOLOGICAL - GEOCHEMICAL
TECHNICAL DATA STATEMENT
TO BE ATTACHED AS AN APPENDIX TO TECHNICAL RETORTFACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT
TECHNICAL REPORT KUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.
RECEU-.
MAY 9-1973pnOJCCTS SECTION
Type of Survey. Ground Electromagnetic and Magnetoneter
Township or Area—Squnvr T
Claim hnltW(*)Phelpa Dodge Corporation of Canada. Limited
Author of PT*"* R. W. Wbolhan,-——.——-—.——.——.—-- ft? Honest-Pad KH. t West Hill, Ontario—^————-—
Februarv 6 to March 1st. 1973____Covering Dates of
Total MUes of Line cut(linccuttinc to office)
72.89 ______ ̂
m: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————Geological.Geochemical.
AIRBORNE CREDITS (Special provision credit* do not apply to airtxme surveys)
Magnetometer
I4&--V,--'!-HATE-
PROJECTS Res.
"il
Previous Surveys
Checked by.
GEOLOGICAL BRANCH
MINING CLAIMS TRAVERSED List numerically
SEE ATTACHED SCHEDULE
Approved by. .date.
GEOLOGICAL BRANCH.
Approved hy, ^ date.
i
\
TOTAL CLAIMS, 80
Show instrument technical data in each space for type of tunrcjr submitted or indicate "not applicable"
GEOPHYSICAL TECHNICAL DATA
GROUND SURVEY'SNumber of Stations— Station interval———— Line spacing_____
3430 .Number of Readings 6970sn* inn*
AQQ*
ProfUe scale or Contour i
MAGNETIC
Instrument.
Magnetometer 100 and 200 gammas. H.E.M. l" - AOZ (specify (or each type of survey)
Scintrex Fluxgate MF-1
Accuracy - Scale constant— Diurnal correction method. Base station location———
20 eannui ocr scale divisionbase station loops every l l/? hsurs as shovn on naps-—-—--—^——-———^—.
ELECTROMAGNETIC Instrument-.——-.———
f.eonics EM - 17
Coil configuration. Coil separation-— Accuracy___^- Method:
Horizontal co-planar
400 ft-t- 1Z
Frequency.O Fixed transmitter
1600 Uz.O Shoot back S Inline Q Parallel line
Parameters measured. GRAVITY
Instrument.^———.
(specify V.L.F. sution)in phase out of phase^^^^^^^^
Scale constant.
Corrections made.
Base station value and location.
Elevation accuracy—————————————————— INDUCED POLARIZATION - RESISTIVITY
Insti uiTime domain. Frequency—— Power——,—
Frequency domain.. Range^^^-^——.
Electrode array——Electrode spacing.
- Type of electrode,
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PROJECTS SECTION MINISTRY OF NATURAL RESOURCES
TECHNICAL ASSESSMENT WORK CREDITS
EH P- 2' 1220
Recorder Holder
Township or Area
Phe.lp.s. Dpdj&e. Corporation of Canada Ltd.
Squaw .Lake. Ar.ea.v
Type of Survey and number of Assessment Days Credits per claim
GEOPHYSICAL
20Electromagnetic .........r."..................days
Magnetometer ...............................days
Radiometric .... . .......................days
Induced Polarization .....................days
GEOLOGICAL...........................................days
GEOCHEMICAL........................................days
Man days l_j . Airborne)_j
Special Provision P l Ground
NOTICE OF INTENT TO BE ISSUED
[ ] Credits have been reduced because of partial coverage of claims.
\ j Credits have been reduced because of corrections to work dates and figures of applicant.
f~] NO CREDITS have been allowed for the following mining claims as they were not sufficiently covered by the survey:
Mining Claims
Pa. 311911 to 17 inclusive 331856 to*94 331898 to 900 " 337901 to 06 337912 to 18 337925 to 30 337933 to 42 349030 - 31
Tftf '.l.nmg Rcco'rtf m*y 'e\juce rift *6ov* C'td't* tt tncesury in onler r/MI f/K lotfl of ipptovtit juearvft d*yl rrtoaitd on **c* ettim dOft not f'Ctrd the m(ouowr"Crtfnvetl.'- 80. Geotopctl ,- 40. G*xt*mic*t ~ 4O:
\
Ontario AST**,^6
Ministry ofNaturalResources
Telephone 416:965-6918
W1617, Whitney Block Parliament Buildings Queens Park, Toronto M7A 1X1
August 9, 1973
Our file number 2.1220 Your lil* number
J. R. OatwayRegional DirectorMinistry of Natural Resources ;- '808 Robertson Street ;;Kenora, OntarioP9N 3X7 i;,
Attn.: Mr. W. A. Buchan ?:t~'r--"
Dear Sir:
Re: Mining Claims Pa 311911 et *1, Squaw Lake Area File 2.1720_________________________
The Geophysical (Electromagnetic 6 Magnetometer) assessment work credits as shown on the attached statement have been approved as of the date above.
The mining recorder should inform the recorded holder of these mining claims and so indicate OP. his records.
Tours very truly.
OJ/rb encl.
\
for J. R. McGinn Director Lands Administration Branch
cc: Phelps Dodge Corp. of Canada Ltd. Attn.; Mr. R. H. Cook
cc: Resident Geologist Kenora, Ontario **
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