rpt on ground geophysical surveys · 2017-01-17 · lorm of plug-in tuning units. two tuning units...
TRANSCRIPT
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52J(87SE88ie 2.9317 JUTTEN 010
Westmin Resources Limited
Jutten Project
Report on Ground Geophysical Surveys
completed in 1986
N.T.S. 52 J/7
Latitude 5Q0 22'N
Longitude 9Q0 32'W
RECEIVEDAu'G *K 1986
LANDS SECriON
May 15, 1986 Paul R. J. Nicholls, P. Eng,
\-y.
Table of Contents
Introduction
Location, Access and Topography
Regional Geology
previous Work
1986 Geophysics
Appendix l -
Certification
52J87SE8818 2.9317 JUTTEN 010C
of Figures,
Figure l - Location Map
Figure 2 - Claim Map
T,-i ci- of Tables
llllllll
Table l - Land Status
Table 2 - Claim Map
Maps
1986 Magnetometer Survey 1986 VLF-EM Survey 1986 Max-Min Survey, 444HZ 1986 Max-Min Survey, 177/HZ
1:2500 1:2500 1:2500 1:2500
in pocket
11M
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Introduction:
Westmin Resources acquired 8 claims (Pa867421 - 428 incl.) in Jutten Township in January 1986. Interest in the area was prompted by the results of previous exploration (trenching and diamond drilling) on ground to the southwest of the claims. Ground geophysical surveys (magnetometer, VLF-EM, and Max-Min II were undertaken January 1986.
Location. Access and Topooraphy:
The Jutten claims (Figure 1) are located approximately 240 kilometres northwest of Thunder Bay and 10 kilometres northeast of the town of Savant Lake, Ontario (N.T.S. 52 J/7).
Access to the property is by boat (summer) or skidoo (winter) from a tourist lodge 5 kilometres to the north. The lodge is linked to Highway 599 by a tractor road.
Topographic relief is generally low (5 metres) but may be steep (scarps up to 25 metres) in areas of outcrop.
Westmin Resources Limited has 100 ife interest in the claims (Figure 2 , Table 1).
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*gfE* Westmin Resources LimitedjglJSjrSS C ACTCn... ^.- '
LEGEND
VOLCANO- SEDIMENTARY ROCKSJUTTEN CLAIMS
LOCATION MAP
FIGURE l
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1
B11111
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9Table 1
9
JUTTEN PROJECT - PROPERTY STATUS
Equity:
Location:
Area of 128
Claims
Pa867421
Pa867422
Pa867423
Pa867424
Pa867425
Pa867426
Pa867427
Pa867428
Westmin Resources Limited
Jutten Township (G. 2874), Ontario** pn r* r** T-Iix. i. S. 3^-u-/
ha.
RecordingDate
21 Jan. 1986
21 Jan. 1986i
21 Jan. 1986
21 Jan. 1986
21 Jan. 1986
21 Jan. 1986
21 Jan. 1986
21 Jan. 1986
AssessmentDue Date
21 Jan. 1987
21 Jan. 1987
21 Jan. 1987
21 Jan. 1987
21 Jan. 1987
21 Jan. 1987
21 Jan. 1987
21 Jan. 1987
looi
Patricia Mining Division,
DaysFiled Lease Due
21 Jan. 1992
21 Jan. 1992
21 Jan. 1992
21 Jan. 1992
21 Jan. 1992
21 Jan. 1992
21 Jan. 1992
21 Jan. 1992
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Regional Geology;
The property is underlain by a north facing mafic volcanic sequence composed of massive to pillowed flows which are unconformably overlain by volcanic conglomerates, clastic sedimentary rocks and iron formations to the north. Granitic rocks have intruded the volcanic sequence south of the property (Bond, 1979).
Previous Work;
Work consisting of trenching (1958) and sampling (1958), ground geophysics (1970 - 1972; VLF-EM, DPM-1 long wire electromagnetic, limited magnetometer survey), diamond drilling (1972) and geochemistry has been completed by J. Bonner south of the claims (reported by Bond, 1979).
The work located a small lense of sulphide mineralization which returned significant Pb-Zn and Ag values.
1986 Geophysics:
In January 1986, a total o.f 15.6 kilometres of line-cutting was completed on the claims to provide control for the geophysical surveys. Lines are spaced 100 metres intervals with stakes chained in at every 25 metres along the lines as control for the survey. G. Thibault (Timmins, Ontario) contracted all line cutting and geophysical surveys.
Survey Methods;
Magnetometer Survey (See map, back pocket)
Total coverage of the grid (15.6 km) was completed using the Gem field magnetometer and readings were taken at 25 metre intervals along the lines. The data was corrected by a base station magnetometer and plotted at a scale of 1:2,500.
The results are contoured at 100 gamma intervals.
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Max-Min II - Horizontal Loop Electromagnetics(see maps, back pocket)
A Horizontal loop electromagnetic survey (14.0 km) was completed over the property using an APEX Parametrics Max-Min II instruments with a coil spacing of 100 metres. Readings taken at 25 metre intervals and were recorded for two frequencies (444 Hz, 1777 Hz). Each frequency was plotted at a scale of 1:2500.
VLF-EM
A VLF-EM survey (14.0 km) was completed over the property using a Geonics EM-16 instrument with Seattle, Washington as the transmitter station. All readings were taken (facing north) at 25 metre intervals and plotted at a scale of 1:2500.
Survey Results;
Magnetometer Survey
The magnetic gradient on the claims is low ranging from 59,700 to 60,000 gammas and appears to increase from the south to the north across the property. A thin strongly magnetic unit ^60,000 gammas) has been defined near the southern boundary of the claims. The unit strikes approximately northeast and has been traced for 500 metres on the claims. Several small magnetic highs are present on the property to the northeast of this unit may represent strike extensions. Work on ground to the south indicate that this response may be due to magnetite crystals present within mafic volcanics. A second broad magnetic high with a similar trend is located in the central portion of the property and has been traced across the property.
VLF-EM
The VLF-EM survey has outlined conductive horizons on the claim group labled A to I. The conductor axes are shown on the VLF-EM map {back pocket) and each conductor is briefly summarized in Table 2.
Many of the conductors appear to reflect the bedrock topography and thickness of overburden.
Conductors B, D, and I may represent bedrock horizons. B and D appear to be stratabound while I cross cuts the stratigraphy.
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Table 2
SUMMARY OF VLF-EM CONDUCTORS
RelativeConductor Conductivity with Designation , Amplitude in a/o Shape Interpretation
A-A 1
B
H
weak to moderate conductor, 2 0-60* amplitude - possibly two conductors
moderate strength conductor, 601 amplitude - multiple conductor
weak conductor, 20-3(n amplitude
moderate to strong up to amplitude
weak conductor, 20-40*1, amplitude
weak conductor, 20% amplitude
moderate conductor, 60% amplitude
moderate conductor
moderate to strong up to
amplitude
broad conductor with weak to moderate re verse crossover of quadrature
broad to sharp cross over with no reverse quad- ature affects on the western portion - eastern portion exhibited strong reverse quadrature
broad no inverse quadrature
sharp to broad cross over with good reverse quadrature on western portion
no quadrature responses
broad, poor quadrature
poor quadrature
poor quadrature
sharp cross over with good quadrature
probable over burden trough or possibly weak broad bed rock conductor
western portion probably repre sents overburden trough - east of line 1900E prob able bedrock conductor
overburden related
in part may represent bed rock conductor
probable over burden related conductors
probable over burden
probable over burden
probable over burden
probable bed rock feature that appears to cross cut magnetics and stratigraphy, associated with magnetic low
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Max Min III Surveys
The nr.ax-min II surveys defined seven conductive zones (A-'G). r.any of these conductors are weak and probably reflect the thickening of overburden. Portions of conductors E and G may reflect weak to moderate bedrock conductors.
Conclusions and Recommendations:
The geophysical surveys completed on the claims have defined a general NE-SW trend to the stratigraphy and have defined several conductors {VLF-EM and or Max Min II) that may reflect bedrock conductors.
It is recommended that geological mapping and soil geochemical surveys be completed on the claims.
P. R. J. Nicholls, P.Eng,
l
Respectfully submitted by:
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1Certification
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I, Paul R. J. Nicholls, of 40 Albert Street South, Box 1605, Stouffville, Ontario, L4A 4H1, certify the following:
1) I have practised my profession for ten years.
2) I hold an Honours B.Se,, in Geological Engineeringobtained from Queen's University, Kingston, Ontario, in 1976.
3) I am a Registered Professional Engineer in the Province of Ontario.
4) I am a member of the Canadian Institute of Mining and Metallurgy and Geological Association of Canada.
5) I have reviewed and interpreted all data presented.
6) I have no financial interests in the property covered by this report.
May 1986.
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Pioneered and patented exclusively by Geonics Limited, Ihe VLF method of electromagnetic surveying has been proven to be a major advance in exploration geophysical instrumentation.
Since the beginning of 19G5 a large number of mining companies have found the EM1G system to meet the need for a simple, light and effective exploration tool for mining geophysics.
The VLF method uses the military and time standard VLF transmissions as primary field. Only a receiver is then used to measure th -t s econdary fields radiating from the local con ductive targets. This allows a very light, one-man instrument to do the job. Because of the almost uniform primary field, good response n deeper targets is obtained.
The EM16 system provides the in-phaso a rid quadrature componenis of the secondary field w ith the polarities indicated.
Interpretation technique has been highly developed particularly to differentiate deeper targets from the many surface indications.
Principle of OperationThe VLF transmitters have vertical antennas. The magnetic signal component is then horizontal and concentric around the transmitter location.
SpecificationsSource of primary licld
Transmitting stations used
Operating frequency range
Parameters measured
Method ol reading
Scale range
Readability
VLF transmitting stations.
Any desired station frequency can be supplied with the instrument in the lorm of plug-in tuning units. Two tuning units can be plugged in at one iinie. A switch selects either s'ation.
About 15-25 kHz.
!1) The vertical in-phase component (tangent ot Ihe tilt angle ol the polarization ellipsoid). (2) The vertical out-o(-phase (quadra- lure) component (tne shod axis ol the polarization ellipsoid compared to the long axis).
In-ohase Irom a mechanical inclino meter and quadrature Irom a calibrated dial. Nulling by audio.tone.
..•t
Reading lime
Operating temperature range
Operating controls
Power Supply
Dimensions
Weight
Instrument supplied with
In-phase r. ISO'%; quadra' 'e r iO'/o. Shipping weight
10-40 seconds depending on sig: strength.
-JO to 50* C.
ON-OFF switch, battery testing ; button, station selector, switch, volume control, quadrature, dial r 40",'o, inclinometer dial ISO
6 si:e AA (penlight) alkaline ccl! Lite about 200 hours.
42 x 14 x 9 cm (16 x 5.5 x 3.5 in )
1.6kg (3.5 Ibs.)
Monolonic speaker, carrying c manual of operation. 3 station : plug-in tuning units (additional quencies are optional), set ol t
.1.5kg (10 Ibs.)
l 1MITFO Designers 4 Manufacturers UII U Li^ Q) Geophysical Instruments
1745 Meyerside Drive. UniiMississauga/Ontano/CanadLSI tCSTel (416) 676-9580Caoies
PORTABLEir
EEiVl
B Five frequencies: 222, , 8BS, '\~7~7~7 and 3555 Hz.
Maximum coupled [horizontal-loop] operation with reference cable.
Minimum coupled operation with reference cable.
Vertical-loop operation without reference cable,
Coil separations: 25, 50,100,150, 2OO and 25Om C with cable 3 or '1Oa,2OO,3OO,aaO, BOO and BOO ft.
Reliable data from depths of up to IBOm CBOOft).
Built-in voice communication circuitry with cable.
Tilt meters to control coil orientation.
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Frequencies:
Modes of Operation:
232.^1-3^. BBS. V777 pnd 35S5Hz. Repeatability;
M l N:
V.L.
Tr.-jnsmitxtir coil plane arid re- cftiver coil plane horizontal IMax-counied; Horizontal-loco mode). Usfid with refer, cable .
Transmitter co'lplanu horizon tal arid receiver coil plane ver tical (Mn- coupled mode K Used with reference cable.
Transmitter coil plane verti- ccil and receiver coil plane hori zontal CVertical-loop rnodo ) . Used without reference cabin. in parallel lines.
Coil Separations: S&.EO.IOO.ISO.SOO RSSOm CWMQ)
or 1OO, POO. 3OC), aaO.SOO ardBOO ft. (iviiviiiF).Coil separations m VL.mode not re stricted to fixed values.
Pcirnmeters Road: . In-Prvjsft ancj Quadrature compo
nents of W~ie: secwndary field in CvlAX arid N.1lfSI modes.
- Tilt-ancjle of the total field in V.L. mode .
e a ci o u c a : - Automatic, direct readout on DO mm (35") edgevwise meters 111 (vlAX arifj fvllN modes No nuil- iriQ or cornporisation riecessary ,
- Tilt ariQlo aix3 null n QOmm edQe- sA/i^ie rnfc*tt?rG in V.
In-Phaiie: h-
Tilt:
by pu button switch .
: rao*/.. iTOQv, by push button swiccM. *7SV. slope . Sensitivity adiustaWe by suparation switch
In-Phase and Quadrature : O.25 V. to O S 't. : T ilt: IV. .
Q.25V. toilV. normally, depending on conditiona. frequencies and coil separation used .
Transmitter Output:. 222Hz : 23OAtmsfli3*3Hz : 2OO Atm2
- eSBHz : l2OAtm2- T777HZ : 6OAtm2- 3555 Hz : 3OAcm3 -
Receivor Batteries :QV trans, radio type batteries (^
Life: appro*. 35hr~s. continuous di. ty ( alkaline , D 5 Ah ) . less in cole weather.
TransmitterBattorioB: 12V B Ah Gel-type rechargeabii
battery. (Charger supplied
Reference Cabin : Lightweight 3-conduCtor teflO' cable for minimum frSctioo. LJnshie! ed. All reference cables option, at extra cost. Please specif
Voice Link: Suilt-in intercom system (c voice communication between r ceiver and transmitter operator in MAX and IVllfsl modes, via r ference cable .
Indicator Lights: Built-in signal and reference war ing lights to indicate erroneoi readings .
Temperature Range: - '.iJ'C to*6O*C C-^O'F
neceivtjr Weight:S^g C13lbs.)
Transmitter Weight: n3kg (29lbs.)
Shipping Weight: Typically 6Okg C135lbs.3,ing on quantities of referen cable and batteries includ Shipped in two field/shipping cas
Specification c to cnange vv.tnout
PARAMETRICS LIMITED200 STeELCAse no e.. MARKHAM. ONT.. CANADA . L3n
,n3S--.61c? Cables; APeXPARA TORONTO
QS-9S677SM o i
SKMI
Ontario
Ministry of Natural Ri
GEOPHYSICAL - GEOLOGICAL - TECHNICAL DATA ST
UTTEN
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) Geophysical Township or Area Jutten (G. 2874)
Claim Holdcr(s^ Weatmin Resources Limited
Survey Compnny G.Thibault Expl.
Author of Report - Address of Author.
P.R.J. Nicholls
Covering Dates of Survey..
Total Miles of Line Cut™
25 Adelaide St.E,Toronto, Ont.M5C 1Y2"January— May 1986
(linecxitting lo office)
15.6 km
SPECIAL PROVISIONS CREDITS REQUESTED
DAYS per claim.
LF . 20—Electromagnetic——————GeophysicalK VL
ENTER 40 days (includes line cutting) for first -Magnetometer, survey. —Radiometric— ENTER 20 days for each Max-Mill other————— additional survey using Geological ——— same grid.
40
20
Geochemical.
AIRBORNE CREDITS (Special provision crcdili do not apply to airborne lurveyi)
Magnetometer. .Electromagnetic, .Radiometric(enter day) per claim)
pATF.r 2 9 Jul Y 8 6 SIGNATURE:.Aulfior of Report or A gent
Res. Gcol.. .Qualifications. /-AXO \J,I.
Previous Surveys File No. Date
DClaim Holder
MINING CLAIMS TRAVERSED List numerically
(prefix)
Pa 867421
Pa 867422
Pa 867423
Pa 867424
Pa 867425
Pa 867426
Pa 867427
Pa 867428
(number)
TOTAL CLAIMS.L837 (5/79)
GEOPHYSICAL TECHNICAL DATA
GROUND S URVEYS — If more than one survey, specify data for each type of survey
Number of Stations.
Station interval __
Profile scale ———-—
2,107
25 m
.Number of Readings 4,705
..Line spacing m
l cm * 51
Contour interval. 100 gammas (59,700/- to 60,000
C
uE 2:o < s oc*
w
Instrument.Geonics Field Magnetometer
Accuracy — Scale constant.
Diurnal correction method.
0.2 gammas
Linear interpretation algorithm
20 secBase Station check-in interval (hours)—Base Station location and value ____Wild Wood Camp, Savant Lake,
Lat. 560 25'N Loner. 90 O 34'W, Value 59,800 gammas^.^^
Instrument ———— Coil configuration
Coil separation ——
Accuracy -————
Method:
Apex Parametrics Max-Min II Geonics El'5-16
Horizontal100 m
Q.5%
Frequency.
O Fixed transmitter 444 Hz S 1777 Hz
D Shoot back S In line O Parallel lineSeattle, WashingtO;
Parameters measured.(specify V.I..F. nation)
In pha^e, out of phase
fc
O
. Instrument —-
Scale constant,
Corrections made.
Base station value and location .
Elevation accuracy-
ZOH <N
CJ
fc
l
Di
Instrument ———————Method D Time Domain
Parameters — On time ^—,
- Off time .™.
— Delay time ,— Integration time.
Electrode array —
Electrode spacing ,
Type of'
C3 Frequency Domain
_ Frequency ——.—...
— Range ________
Ministryo!Natural Resources
Ontario
Report of Work,- . . (Geophysical, Geological,Geochemical and Expenditures)
, Mining Act
Instructions: Please type or print. If number of mining claims traversed
^ -i e xceeds space on this form, attach a list. /};'-f'3,/ j Note: Only days credits calculated in the J- ; ^s l ' " Expenditures" section may bc entered
in the "Expend. Days Cr." columns. Do not use shaded areas below.
Type i;f Surveyd)
Geophysical ^ j ^Claim HoldorU) TV^T
Westmin Exploration ^fernrrAddress
25 ^delaide St. East, Suite 1400,feurvoy Company
G. Thibault Expl.Name and Addreii of Author (of Geo-Technical report)
P. R. J. Nicholls, 25 Adelaide St. E
-6( ' /V-tX- "p/fj/Otud*
Township or AreaJutten (G. 2874)
jProipector'i Licence No.
T-4638
Toronto, Ontario M5C 1Y2]6ije of Survey Ifr, j * '- 1 OD
J Day l Mo.J Vr,
sm&inl Total Miles of line Cut^ 5 , 2 86 1 5i6 k mDay Mo, Vr.
., #1400, Toronto, Ontario M5C 1Y2Credits Requested per Each Claim in Columns at rightSpecial Provisions
For first survey:
Enter 40 days. (This includes line cutting)
For each additional survey; using the same grid:
Enter 20 days (for tach)
Man Day*
Complete reverse side and enter total(s) here
AirOorne CreOm
Note: Special provisions
credits do not apply
to Airborne Surveys.
l"*"rvYn
Expenditures (excliType of Work Perforr
Performed on Claimd
CaK
Geophysical
VI- tJactfo
- Radiom
Mag -Mi
Geological
Gsochemic*
Geophysical
,Fnagnetic
etric
n
- Electromagnetic
- Magnetometo'
' Radiometric
- Other
GeoiogicBi
Geochfimica
Electromagnetic
Magnetometer
^c^rnW*
ciqc,T?ower Mrippfing)
U Ul 1 1 j .-o
A.M. "7|8|Di
MUU
^ u
H ^
i- ,-j
-
\\-l d ' f:."L1 V - -
Days perClaim
20~~T(T
-~20
Days per Claim
- - -
V
Days per
.'
rP.M. l
1PJ1IH2TT ""i^ivivis' yulation of expenditure Days Oed&s
Total Expenditures
s * 15
Total Days Credits
s
Instructions Total Days Credits may be apportioned at the claim holder's choice. Enter number of days credits per claim selected in columns at right.
Mining Claims Traversed (List in numerical sequence)
Date
29 July 1986Ftecoraed Holder or Agent (Signature)
Certification Verifying Report of WorkJ
Mining Claim Proli* T Numhe
l hereby certify that l have a personal end intimate knowledge of the (acts set Mr t h in the Report of Work annexed hereto, having performed the work or witnessed same during and/or after its completion and the annexed report vi true.
Nama and Poital Addreo o' F-urton Certifying
P.R.J. Nicholls, 25 Adelaide Street East, Suite 1400Toronto, Ontario M5C 1Y2 Date Certified
29 July 1986l.lfi? (RI '01
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X1x*X1x1XIx1x1X1
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Wostmin Resources LimitedSuile l'100, ?5 Adolnicto Slrool {.Msllofonlo, Ontario, CanadaM5C 1Y?-11636-1-8116 7clox:06-?207P
July 30, 1986,
Ministry of Northern Development and Mines,Land Management Branch,Mining Land Section,Whitney Block, Room 6643,Queen's Park,Toronto, Ontario.M7A 1W3.
Dear Sirs :
Please find enclosed in duplicate t lie Report, on C round Geophysical Surveys, completed 1986, Jutten Project, by P. R. J, Nicholls.
Also is enclosed a form Technical Data Statement and copy of the form Report of Work submitted to the Mining Recorder in Sioux Lookout.
Thank you, and I hope you will find everything in order.
Yours truly,
WESTMIN RESOURCES LIMITED
(Mrs.) S. Kuprejanov, Administrative Geologist
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