Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42E13SE00015

Record: MDI42E13SE00015

General

Commodities

Primary Commodities: Gold

Secondary Commodities: Silver

Location

Township or Area: Elmhirst

Latitude: 49° 49' 9.29"    Longitude: -87° 38' 45.14"

UTM Zone: 16    Easting: 453539   Northing: 5518734    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 42E13SE

Point Location Description: Trenches, diamond drill holes.

Location Method: Data Compilation

Access Description: The claim is located in northeastern Elmhirst Township, 17.6 km northwest of Jellicoe on the northwest shore of Wilkinson Lake. The property can be reached by driving from the Nezah Station on the Trans Canada Highway 11 (14.5 km) north on secondary Highway 801 to the Sturgeon River, and then northeasterly 16.1 km on the Domtar Road. The property is also accessible by small plane to Wilkinson Lake.

Exploration History

1934: The showing was discovered and the property was staked by J. Penelton for Minefinders Ltd. who carried out trenching, crosscutting, and panning. 1936: J.H.C. Waite optioned the property and drilled 4 shallow drill holes. 1958-60s: A. Lafontaine carried out prospecting. 1972: Arthur J. Douglas staked the occurrence. 1973: All interests were transferred to New Metalore Mining Co. Ltd. 1974: Power stripping and mechanical trenching, and geological and geophysical surveys (mag, IP) were conducted by New Metalore. 1975: New Metalore drilled one hole. 1978: The company name was changed to Metalore Resources Ltd. Further power stripping, trenching and assaying were done, followed by a 12 hole diamond drill program totalling 2330 m. 1980: All interests were transferred to Dome Exploration Ltd. Dome conducted an airborne mag survey and a 7-hole drilling program totalling 793.5 m. 1981: A grid was cut, and mag and EM surveys were conducted. An additional 4 holes were also drilled. 1982: All interest were transferred back to Metalore Resources Ltd. 1983: The claim was cancelled. 1984: Claim was staked by Robert Lessard. 1987-88: Goldteck Mining Ltd. drilled 19 DDH totalling 3396.2 m. 2002: R. Cote staked claim 1187667. 2004: S. Roach staked the property. 2006: Kodiak Exploration Ltd. optioned the property from S. Roach and carried out line cutting, ground magnetic and IP geophysical surveys, trenching, mapping, sampling, and drilled 20 DDH totalling 1,487 m on the Wilkinson Lake-Yellow Brick Road system. 2007: Kodiak carried out prospecting and drilled 70 DDH totalling 6,392 m on the Wilkinson Lake gold system. 2008: Kodiak carried out metallurgical testing, trenching, sampling, and drilled 243 DDH totalling 66,195 m (mainly on the Golden Mile system). 2009: Kodiak drilled 75 DDH totalling 17,266 m throughout the project area. 2010: Kodiak was renamed to Prodigy Gold Inc. and carried out stripping, mapping, sampling, and drilled 90 DDH totalling 15,581 m throughout the project area.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Beardmore-Geraldton

Geological Age: Archean  

Geology Comments

Dec 07, 2005 (B Nelson) - The map area is underlain by metavolcanics and igneous intrusive rocks of Precambrian age, but a large part is covered by Pleistocene sand and recent swamp deposits. The oldest rocks are Early Precambrian (Archean) metavolcanics ranging from mafic to felsic in composition. More than half the map area is underlain by intermediate to felsic metavolcanics. Most of these are pyroclastic rocks, such as tuff-breccia, crystal tuff and bedded tuff, but massive, amygdaloidal, flow-banded and spherulitic flows are also common. These felsic to intermediate rocks are in conformable contact with a mafic sequence of massive, amygdaloidal and pillow lavas and related breccia, which occurs in the southern and eastern parts of Rickaby Township. The metavolcanics are intruded by Early Precambrian sub-circular stocks of granodiorite, a sill-like body of gabbro, and numerous minor intrusions ranging from granitic to lamprophyric and pyroxenitic in composition. All of these rocks have been metamorphosed to the greenschist facies and are intruded by north-trending Late Precambrian Keweenawan diabase dykes which cut all of the older rocks. Elmhirst Township lies within the Wabigoon Belt of the Superior Structural Province. Faults do not form prominent topographical features, but several faults have been inferred at major lithologic contacts. Exploration activity to date has been concentrated on a large quartz vein in a massive porphyritic rhyolite. The country rock has been intensely schisted for several feet or more on both sides of the vein. the schist is highly chloritic and fairly well mineralized with fine crystalline pyrite. There are at least two ages of quartz, which vary in appearance from white to blue and sugary to vitreous. On surface, the quartz is rusty in streaks from sulphide weathering. The main vein on the Wilkinson Lake property strikes in a northwesterly direction and dips 78 degrees south.

Lithology

Mineralization

Mineralization Comments

Dec 07, 2005 (B Nelson) - In addition, bornite and molybdenite have been noted. Accessory minerals include chlorite, sericite, limonite and tourmaline. The main vein is approximately 39.6 m long and up to 5.5 m wide. Assays from this vein and others yielded values from trace to 0.59 oz/ton Au and up to 2.40 oz/ton Ag. Chip samples taken from the hanging wall, in sugary blue quartz, sparsely mineralized with py and minor cp in fine massive veinlets, indicate a zone averaging approximately 0.33 oz/ton Au and 2 oz/ton Ag across 4-5 feet. The mineralized schist, comprising the walls on either side of the vein, also carries low values in gold (0.02 to 0.09 oz/ton). In 1978, Metalore recorded assay results of 0.44 oz/ton Au over 4.3 m, 0.42 oz/ton Au over 2.7 m and 0.97 oz/ton Au over 1.8 m from drill holes 78-3, 78-5, and 78-10 respectively. Silver values up to 1.10 oz/ton.

Oct 15, 2019 (Robert Cundari) - Grab samples collected by staff of the Thunder Bay North Resident Geologist’s office from the main vein system (UTM 453880E 5518614N) along the Kinghorn Road at the Wilkinson Lake zone assayed 1.38 ounces Au per ton (quartz vein) and 0.20 ounce Au per ton (chlorite-sericite schist wall rock). There are 3 main gold zones within the Hercules shear system. The character of the vein systems observed at several of these occurrences, within and adjacent to the Hercules shear, is consistent with an Archean shear-hosted gold model. Shear zones host quartz vein stockwork, chlorite-sericite schist and feldspar porphyry dikes. Sulphide content averages 5%, consisting mainly of pyrite, but amounts up to 15% were noted. Chalcopyrite, galena and sphalerite were also present within the main vein system at the Wilkinson Lake zone. The metavolcanic host rock observed within the Hercules shear, generally consists of andesitic to felsic tuffs and pyroclastic breccias.

Oct 15, 2019 (Therese Pettigrew) - Several vein systems have been identified on the Property. The main one is the Golden Mile which has a NW-SE trend and has been identified in the drill core for over 2 km in strike length, occurring just west of Wilkinson Lake. Associated with this vein system are a number of mineralized zones, including the Bobby Ore, Fat Bastard, Lucky Strike East and West, and the Two Veins. A second vein system has been identified approximately a kilometre northeast of the Golden Mile vein system with a similar NW-SE trend. This vein system also consists of discrete mineralized zones or veins, including the Wilkinson Lake, Penelton, Marino, Derek Lee and the "7 of 9" Veins. These zones have drill indicated strike lengths of up to 500 m. This vein system is referred to as the "Wilkinson Lake-Yellow Brick Road" vein system. Both vein systems are steeply dipping to the southwest. Individual veins are hosted within and post-date the Elmhirst Lake Intrusion and the semi-continuous mafic units which trend sub-parallel to the quartz veins. Strong shear deformation is localized along the quartz vein contacts and within the mafic unit. The veins pinch and swell non-systematically horizontally and vertically. The Wilkinson Lake-Yellow Brick Road vein system has a combined strike length of 3 km. In the 2006 drilling program, two drillholes with significant results were observed in the Wilkinson Lake Gold Zone ("WLGZ"). These drillholes were HR06-02 grading 9.22 g Au/t over 13 m from 11.3 m to 30.3 m, and HR06-03 grading 19.64 g Au/t over 13.15 m from 26.4 m to 39.55 m. Other significant drill intersections include 38.47 g Au/t over a down-hole width of 1.6 m at Marino (HR07-16), 12.85 g Au/t over 1.1 m including 0.3 m grading 53.24 g Au/t at 7 of 9 (HR08-113) and 15.59 g Au/t over a true width of 9.7 m (including 51.65 g Au/t over 2.83 m) at Wilkinson Lake (HR07-03). Drillhole HR08-145 was successful in extending the high grade WLGZ down plunge, where it intersected 3.3 m grading 22.26 g Au/t, including 90 g Au/t over 0.8 m (Kociumas and Power-Fardy, 2010). Visible gold is seen on surface in the Marino vein and at depth in drill core from the 7 of 9 vein (Assessment report 20000006750).

Mineral Record Details

Site Visit Information

Date: Feb 03, 1997

Geologist: B Nelson

Notes: The Beardmore-Geraldton Economic Geologist visited the occurrence October 10, 1984 and July 4, 1985.

References

File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date:

Author:

Publisher Name:

Location: Thunder Bay RGP

Map - Mineral deposits series, Ontario mineral potential, Longlac sheet, districts of Thunder Bay and Cochrane

Publication Number: P1527 Scale: 1:250,000    Date: 1978

Author: Springer J.S.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology of Elmhirst and Rickaby townships, District of Thunder Bay

Publication Number: R168 Date: 1978

Author: Mackasey W.O., Wallace H.

Publisher Name: Ontario Geological Survey

Location:

Map - Tashota-Geraldton sheet, geological compilation series, Thunder Bay and Cochrane districts

Publication Number: M2102 Date: 1997

Author: Pye E.G., Harris F.R., Fenwick K.G., Baillie J.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Gold occurrences, prospects, and deposits of the Beardmore-Geraldton area, districts of Thunder Bay and Cochrane

Publication Number: OFR5630 Page: 630-636  Date: 1986

Author: Mason J.K., White G.D.

Publisher Name: Ontario Geological Survey

Location:

Map - Elmhirst and Rickaby townships, Thunder Bay District

Publication Number: M2373 Scale: 1:31,680    Date: 1977

Author: Mackasey W.O., Wallace H.

Publisher Name: Ontario Geological Survey

Location:

Publication - A Technical Review and Mineral Resource Estimate of the Hercules Property

Publication Number: 2010 NI 43-101 Date: 2010

Author: Kociumas, M.W., Power-Fardy, D.

Publisher Name: Watts, Griffis and McOuat for Kodiak Exploration Ltd.

Location: SEDAR under Prodigy Gold

Map - Thunder Bay data series, Wilkinson Lake area, District of Thunder Bay

Publication Number: P2514 Scale: 1:15,840    Date: 1982

Author: Speed A.A.

Publisher Name: Ontario Geological Survey

Location:

Mono - Report of Activities 2006, Resident Geologist Program, Thunder Bay North Regional Resident Geologist Report: Thunder Bay North District

Publication Number: OFR6201 Page: 22-24  Date: 2007

Author: Smyk M.C., White G.D., Puumala M.A., Magee M.A., Komar C.L.

Publisher Name: Ontario Geological Survey

Location:

Publication - The Wilkinson Lake Strike: https://ejlavoie.wordpress.com/2021/02/11/the-wilkinson-lake-strike1/

Publication Number: Website Date:

Author: E.J. Lavoie

Publisher Name:

Location:

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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office