Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42D14NW00044

Record: MDI42D14NW00044

General

Commodities

Primary Commodities: Copper, Gold

Secondary Commodities: Molybdenum

Location

Township or Area: Pays Plat Lake Area

Latitude: 48° 59' 43.75"    Longitude: -87° 17' 27.69"

UTM Zone: 16    Easting: 478711.76   Northing: 5426994.67    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D14NW, 42E03SW

Point Location Description: Diamond drill sites.

Location Method: Conversion from MDI

Access Description: The occurrence (patented claim TB3304) is located west of the west arm of Big Duck Lake approximately 27 km north of Schreiber (claim map G-606). Access is via aircraft or by drill trail from the Winston Lake Mine site to Big Duck Lake.

Exploration History

1917: Carl Sjolander staked area. 1918: Claim transferred to Duck Lake Mining Co. Ltd. 1919: Claim was surveyed, 60 days work was recorded. 1920: Patented. 1960: KRNO Mines Ltd. performed some surface sampling but reported low gold values. Property optioned to D. Finley of Madsen, Ontario. 1964: Property was reported to be held by W.P. Bailey of Port Arthur. 1982: R. Szyda holds claim. Interests transferred to Corporation Falconbridge Copper. 1984-1988: Corporation Falconbridge Copper acquired the property. A major exploration program was conducted including line cutting, geological, and lithogeochemical surveys. Diamond drilling was conducted on several zones including the Coco Estelle property. 1993: Metall Mining Corporation and Rusty Lake Resources completed 2163 m of diamond drilling in the Coco Estelle and Nelson Pit zones. 2005: Tri-Gold Resources Corp. carried out mapping, an IP survey, and drilled 1 DDH totalling 182.9 m.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  

Geology Comments

Dec 07, 2005 (B Nelson) - The occurrence is classed as a 'lode gold/ calc-alkalic porphyry' deposit. The Sjolander deposit occurs in hornblende schist, west of the west arm of Big Duck lake about 2,000 feet (0.6 km) northwest of the Cooper Vein, on patented claim TB 3304 held by W.P. Bailey of Fort William. The vein, exposed in an open cut, 45 feet (13.7 m) long and up to 8 feet (2.4 m) deep, on the north bank of the creek that flows between Bobbie Lake and Big Duck Lake, is of typical sugary quartz and strikes N15 degreesW and dips 75 degreesE. It is exposed for a distance of 40 feet (12 m) in the walls and bottom of the trench, and its width ranges up to 11 feet (3.4 m). It narrows to the south, and in an outcrop on the south end of the trench, the width is only 1.3 feet (39 40 cm). At its north end, the vein is intersected by a second that strikes N75 degreesE and dips 80 degreesN. This second vein, exposed in the west wall of the trench, is 7 feet (2 m) thick. The main vein is poorly mineralized and contains only a small amount of fine grained pyrite. The transverse vein, however, contains abundant pyrite with a little chalcopyrite and molybdenite. The Sjolander vein was sampled by KRNO Mines Limited, in 1960, but the gold content was found to be low.

Lithology

Mineralization

Mineralization Comments

Dec 07, 2005 (B Nelson) - The vein is poorly mineralized with chalcopyrite, molybdenite, pyrite and gold. Wells (1984) described the showing as ' a mineralized quartz biotite quartz vein which is hosted in a fine grained massive, mafic flow is exposed in a 10 by 10 metre pit. Up to 5% pyrite and traces of chalcopyrite are in the quartz vein.' (Resident Geologist's Files, Schreiber Hemlo District, Thunder Bay. *Wells (1984) reports on the results of grab sampling undertaken by Corporation Falconbridge Copper: Sample TBS1264 0.26 Cu (%), 75 Au (ppb). Sample TBS1265 0.92 Cu (%), 1163 Au (ppb). (Resident Geologist's Files, Schreiber Hemlo Files, Thunder Bay).

May 21, 2019 (Therese Pettigrew) - Drillhole BD05-05 assayed up to 401 ppb Au, 148 ppb Bi, 2016 ppm Cu, 798 ppb Mo over 0.5 m in sample 602 (Assessment file 20000001118).

Mineral Record Details

References

File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date:

Author:

Publisher Name:

Location: Thunder Bay RGP

Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District

Publication Number: M2232 Scale: 1:253,440    Date: 1973

Author: Carter M.W., McIlwaine W.H., Wisbey P.A.

Publisher Name: Ontario Division of Mines

Location:

MonoMap - Mineral deposits of the Big Duck Lake area, District of Thunder Bay

Publication Number: R027 Page: 37-38  Date: 1997

Author: Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Big Duck Lake area, District of Thunder Bay

Publication Number: M2023 Scale: 1:15,840    Date: 1997

Author: Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Page: 301  Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.

Publication Number: OFR5951 Page: 215-217  Date: 1996

Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.

Publisher Name: Ontario Geological Survey

Location:

Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.

Terms of Use

Please review our Terms of Use agreement for this data product.

Ministry Contact Information

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