DETAIL MAGNETOMETER AND ELECTROMAGNETIC SURVEYS ON THE 101 PROPERTY MARRIOTT TOWNSHIP LARDER LAKE MINING DIVISION DISTRICT OF COCHRANE, ONTARIO FOR ALEXANDER H, PERRON 8,2002 MISS WENDY K, WELLER GEOTECH PROVINCIAL RECORDING OFFICE - SUDBURY R E C E l V E D APR 12 2Q02 A.M. P.M. RECEiVEB" APR 12 2002 GEOSCiewCE ASSESSMENT 32D12SE2025 2.23427 MARRIOTT 010
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MAG & EM SURVS ON 101 PROP MARRIOTT TP€¦ · rocks are cut by three sub parallel strike slip faults trending in an east northeast direction. The major Destor-Porcupine fault zone,
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GEOLOGICAL MAP KIRKLAND LAKE-NORANDA AREA - FIGURE 5 . . 6 a)
DETAILED GROUND VLF-EM MAP lOl/Svlf/EM/2002 - . IN BACK POCKET
DETAILED GROUND MAGNETOMETER SURVEY MAP lOl/Smag/2002 IN BACK POCKET
SUMMARY i)
This report is a Geotechnical survey, as required by The Ministry of Northern Development and Mines, for assessment work purposes, following the recommendations set forth in the Mining Act Regulations 1991.
The report includes an introduction to the property, general geology, field results and conclusions, based on the field survey.
Technical data is provided in the Assessment DataForm found at the back of this report. Field data is compiledon the accompanying maps at the back of this report.
The property overlies an east northeast to east trend ing, south dipping, sequence of rocks composed mainly of mafic metavolcanic flows belonging to the Kinojevis Group. These rocks are cut by three sub parallel strike slip faults trending in an east northeast direction. The major Destor-Porcupine fault zone, lies along the northern edge of the claim group. These structures are known to host a number of gold deposits in the area (Holt-McDermott, East Zone, Mattawasaga Zone, Battle Mountain, Teddy Bear Zone, T&H-Jonpol.
An Induced Polarization (I.P.) Survey completed in July, 1988, outlined at least twelve (12) anomalies on the property. Seven of these anomalies appear to be coincident with the Destor- Porcupine Fault zone or associated splays; therefore, they repre sent high priority drill targets.
DETAIL MAGNETOMETER AND ELECTROMAGNETIC SURVEYSON THE
101 PROPERTY
MARRIOTT TOWNSHIP
LARDER LAKE MINING DIVISION DISTRICT OF COCHRANE, ONTARIO
INTRODUCTION
The 101 Group consists of a contiguous block of one hundred and one (101) unpatented mining claims located in Holloway and Marriott town ships, Larder Lake Mining Division, District of Cochrane, Ontario.
On March 18, 2002, two grids were started on the 101 Group in Marriott Township.
This small detail south grid was turned off an existing (1990) east/west oaseline (re-cut).
New fifty meter picket lines were cut and chained every twenty five meters.
Line cutting on the small detail south grid was performed by Mr. A. Pariscoat and crew.
The anomalies detected therefrom are shown on the accompanying plan maps at a scale of 1:50000, that form an integral part of this re port.
Additional information on the instruments used in the surveys can be found at the back of this report on the Technical Data Form.
PROPERTY DESCRIPTION
The 101 Group consists of a contiguous block of one hundred and one (101) unpatented mining claims located in Holloway and Marriott town ships.
Ownership of the claims has been attested to by The Perron Gold Corporation, 103 Government Road East, Kirkland Lake, Ontario, P2N IA9, and was not independently ascertained by the writer.
LOCATION AND ACCESS
The 101 Group is located in the northeast corner of Holloway town ship and continues east to the northwest corner of Marriott Township. The property is approximately thirty five miles due east of the town of Matheson,
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Ontario, along Highway 101. ':
The property is accessible from the east via Highway 101 into Marriott Township and the north corner of the claim group. (See Figures l and 2).
PROPERTY HISTORY
Robert S. Middleton Exploration Services, 200 meter grid, magne tometer survey.
Perron Inc. (M. Greer), detailed magnetometer survey over entire grid.
Remy Belanger, I.R. survey over every other grid line, 1988.
Perron Inc. - Electromagnetic survey and Geology survey, 1990.
Perron Inc. diamond drilling, 1991.
Teck Corporation, line cutting, magnetometer I.P. over claims in Holloway Township (Checklin Lake) diamond drilling.
Reports can be viewed in the Regional Assessment Files.
TOPOGRAPHY
The overall terrain in this survey ranged from steep outcrop hills to low bogg and beaver ponds. A few creek systems cross the claims flowing to the Mattawasaga River.
A small mountain with very steep cliffs occurs in the south part of this survey. The vegetation ranges from red pine, jack pine, silver and white birch on the hills and mountain, to poplar and alder and balsam in the low lying areas.
GENERAL GEOLOGY
According to the O.G.S. report 173, Geology of Stoughton and Marriott Townships by L.S. Jensen, the underlying bedrock is predominantly volcanic rocks with lesser amounts of sedimentary rocks which have been intruded by ultra mafic and felsic lava flows. Lying between these lava flows are interflow siliceous horizons, sedimentary bands of grey-wacke, arkose and some iron formation.
These series of flows and rock types are of the Archean Age be longing to the Abitibi Greenstone Belt of the Superior Province. (See Figure 3).
PROPERTY GEOLOGY
The 101 Group is underlain mainly by an east-northeast to east
MARRIOTT TOWNSHIP
CLAIM LOCATION
MAPFIGURE
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REGIONAL GEOLOGY FIGURE 3
NORTHERN FAULT-BLOCK
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ProterozoicKeeweenawan diabase (not shown)
I 2 Cobalt Group Archean
Matachewan diabase (not shown) Gra/iitic rocks
II Granodiorite, monzonite, quartzmonzonite, syenite
10 Massive to gneissic Quartz diorite,tonalite, trondhjemite
'a refers to Kirkland Lake Area, south limb of synclinorium (Jensen 1978c, 1979).' "b refers to Kirkland Lake Area, north limb of synclinorium (Jensen 1976, 1978b).'"c refers to Timmins Area (Pyke, 1980)."•* (Goodwin 1965).
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.trending series of massive to pillowed, mafic volcanic flows with minor intercalated flow breccia, hyacloclastite and tuff (Figure 4). These rocks form a continuous south-facing sequence dipping from 60 degrees to 85 degrees to the south. They are relatively unaltered, having been subjected to prehnite-pumpellyite facies regional metamorphison.
The Destor-Porcupine fault (a major deformation zone) lies along the north boundary of the 101 claims in Marriott township. In this area, the structure is composed of two or three converging faults forming a deform ation/alteration zone up to l mile wide.
At least three subparallel strike-slip faults, trending between 70 degrees and 90 degrees cut the rocks underlying the 101 Group. They occupy topographic depressions and are generally not well exposed. However, geolo gical mapping in the area (Jensen 1978, 1982) indicates that they abut against (not cross cut) the Destor-Porcupine Fault, thus they may represent splays associated with this large regional deformation zone.
There are no known gold occurrences on the 101 property; however, Cortez Explorations discovered a zone of silicified and pyritic flow top breccias which appear to be associated with one of the splay faults crossing the property. (See Figure 4).
INSTRUMENTATION
Magnetometer Survey:
This system uses a backward motion of spinning protons of a hydrogen atom within fluid of hydrogen and carbon. These spinning magnetic protons are caused to have two opposite poles by applying a magnetic fluid using a current within a coil of wire. This frequency of precision is proportional to the earth's total magnetic field.
This instrument is read directly in gammas which is the absolute value of the earth's total field for that station.
The diurnal variation was monitored by closing each loop at any secondary check station, at a grid line, baseline intersection. Diurnal corrections were applied by linear distribution of any observed variation over the time between base stations.
Electromagnetic Survey:
The VLF-EM method uses as a source, several of the main submarine communications transmitters in the 15 to 25 kHz band found throughout the world.
The submarine communication radio waves travel in a single mode parallel to the surface of the earth along the earth-air interace.
VLF instruments are capable of picking up any structures that change the direction of the waves by measuring the tilt angle being zero on flat ground, but when a conductor is present, the tilt angle will acquire a finite value. The direction of tilt indicates the direction of the conductor.
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Calculations of such parameters as depth, depth extent, dip and width of the conductors is very minimal.
The VLF easily illustrates the location of the upper limit of dipping structures which can be seen or plotted as VLF profiles as areas of greatest change in tilt angle per unit of distance.
The instrument used for this survey was a Geonics EM-16 unit. The sensitivity of this unis is 158 for the inphase and 135 for the quadrature, The operating frequency for the EM-16 from 15-25 kHz and the station is made by plug-in units.
Further information on the VLF and the magnetometer can be found in the back of this report on the Technical Data and Assessment Forms.
PRESENTATION AND DISCUSSION OF RESULTS
i) Magnetometer Survey:
The field data is presented on Map NO. lOl/Smag/2002. The map is drawn at a scale of 1:5000 meters.
The magnetic data is illustrated as isomagnetic contours, contour interval 100 to 500 gammas, on a map of corrected magnetic values recorded at each station.
The magnetic trend is in an east to north-east direction. The magnetic relief ranges from 60,002 gammas to 57,040 gammas. (Difference of 2,962 gammas).
Throughout this small south grid there are interruptions in the northern magnetic relief, small areas showing an intrusion or break into the east-northeast structure. These structures may be related to the Destor-Porcupine Fault Zone, (See Figure 5, Geological map of Kirkland Lake-Noranda area).
Many of the magnetic responses can be directly related to topographical features indicating exposed outcrop and overburden. Many of the outcrops in the field vary in height and have large cliff faces and oriented gouges which indicate extensive fault and joint systems.
The magnetometer detail survey has helped to define the magnetic low systems on both sides of the grid. Throughout the entire grid a break in the magnetics has been noted.
i i) Electromagnetic Survey:
The field data is presented on the map lOl/SvlfTEM/2002 at a scale of 1:50000 meters, found at the back of this report.
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In this detail survey three new contacts were noted.
Ql - Crosses PLOOO 250S to PL750E 310S.The contact crosses over the top and south side of a verylarge outcrop to the north of highway 101.Figure 4 (D. Hawke) has mapped this outcrop as Volcanics -Basalt - fragmental lava.The quadrature is negative.
Q2 - PL1050E 051S to PL1500E 055S.The topography of the area is a long linear valley caused by glacial scouring. These valleys are noted by L. S. Jensen (O.G.S. Report 173) was weak, narrow, faulted, sheer zones between outcrops)).D. Hawke:(Figure 4) has noted I.R. Anomaly H is the same strike length as Q2.
Q3 - Crosses PL1150E 365S to PL1500E 310S.The topography of the area is the south slope of a large glacial wash hill. Mr. D. Hawke noted on Figure 4, I.R. Anomalies G S H in the same area as Q3 and the same strike. The quadrature is negative.
OBSERVATIONS AND CONCLUSIONS
Parallel magnetic highs associated with magnetic lows are very important, other discovered features are magnetic lines that are broken up or intruded upon by north-south striking formations. (See Figure 5).
These north-south formations as in the break up of magnetic linears on the northern side of highway 101, indicate an interference such as a fault directly related to the Destor-Porcupine Fault.
At the present time the VLF survey is being put through the Fraser Filter Program to help take out geological noise.
A horizontal loop survey will be run to help with the origins of both the magnetometer and electromagnetic surveys. Also to look for areas of base metals.
Respectfully submitted,
April O, 2002 Miss llendy K. WellerGeotech
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REFERENCES
L. S. Jensen
M. Greer
M. Greer
Teck Corporation R. Burke
1986
D. R. Hawke July 28, 1989
Miss Wendy K. Weller April 5, 2000
Miss Wendy K. Weller April 10 , 2002
- O.G.S. Report 173, Geology of Stoughton and Marriott Townships.
- Geophysical, Magnetometer Report, 1988.
- Geophysical Report, VLF and Geology, 1989.
- Teck Corporation Joint Venture, Magne tometer, I.R., Diamond Drilling, 1991, by R. Burke.
- Volcanology and Mineral Deposits, Ontario Geological Survey Miscellaneous Paper 129, 1986.
- Evaluation Report on 101 Claim Group
- Detail Magnetometer S Electromagnetic Surveys 101 Property, Marriott Township, Larder Lake Mining Division District of Cochrane, Ontario April 5, 2000
- Detail Magnetometer b Electromagnetic Surveys 101 Property, Marriott Township, Larder Lake Mining Division District of Cochrane, Ontario April 10, 2002
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Technical Data*.Line (ml/km):...!6;.3.?.1?................. Line
No. of samples/stations:..!5!.......... Line/picket sonclngsAQM/ZBM
ELECTROMAGNETIC SURVEY:
Instrument: EM " 16 ,................^ ., r- ,- VERTICAL b HORIZONTAL r ,, ennnfn ^nn . INFINITYCoil configuration;..__.............. Coil separation:...^t;ii^m
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We have approved your Assessment Work Submission with the above noted Transaction Number(s). The attached Work Report Summary indicates the results of the approval.
At the discretion of the Ministry, the assessment work performed on the mining lands noted in this work report may be subject to inspection and/or investigation at any time.
If you have any question regarding this correspondence, please contact STEVEN BENETEAU by email at [email protected] or by phone at (705) 670-5855.
Yours Sincerely,
Ron GashinskiSenior Manager, Mining Lands Section
Cc: Resident Geologist
The Perron Gold Corporation (Claim Holder)
Assessment File Library
The Perron Gold Corporation (Assessment Office)
Wendy Kathleen Weller (Agent)
Visit our website at http://www.gov.on.ca/MNDM/LANDS/mlsmnpge.htm Page: 1 Correspondence 10:17165
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