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Ontario Geological Survey
Permanent Link to this Record:
MDI52O08NW00014
| Record Name(s) | Umex G - 1980, Kapkichi Lake - 1984, Kapkichi Lake B,2 - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1984-Jul-23 |
| Date Last Modified | 2022-Jul-14 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Nickel
Township or Area: Kapkichi Lake Area
Latitude: 51° 28' 21.19" Longitude: -90° 21' 39.29"
UTM Zone: 15 Easting: 683281.82 Northing: 5705679.99 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O08NW
Point Location Description: Precise
Location Method: Conversion from MDI
1946-50: Trenching, ground magnetic survey and diamond drilling by Central Patricia Gold Mines. 1956-58: Geophysical surveys and diamond drilling by Kapkichi Nickel Mines. 1969-1976: Geophysical surveys, diamond drilling, delineation of Thierry and K1-1 deposits, sinking of exploration shaft on Thierry deposit by Umex. 1976-1982: Production from Thierry Deposit by Umex from two open pits and underground workings. 2002: Diamond drilling of Thierry deposit by PGM Ventures. 2004-present: Mineral resource estimates and diamond drilling by Richview Resources.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52O08NW0022 | 52O08NW0027 | 52O08NW0027 |
| 52O08NW0023A1 | 52O08NW0028 | 52O08NW0028 |
| 52O08NW0026 | 52O08NW0446 | 52O08NW0446 |
| 52O08NW0016B1 | 52O08NW0024 | 52O08NW0024 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Pickle Lake
Geological Age: Mesoarchean
Feb 06, 2007 (Mark Puumala) - the area geology is described in MDI52O08NW00003.
| Rock Type | Rank | Composition | Texture | Relationship | Ultramafic-Unsubdivided | 1 | Host |
|---|---|---|---|---|
| Gabbroid-Unsubdivided | 2 | Host | ||
| Granitoid-Unsubdivided | 3 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Cubanite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Magnetite | Economic | Ore | ||||
| 4 | Pentlandite | Economic | Ore | ||||
| 5 | Pyrite | Economic | Ore | ||||
| 6 | Pyrrhotite | Economic | Ore | ||||
| 7 | Bornite | Economic | Ore | ||||
| 8 | Gahnite | Economic | Ore | ||||
| 9 | Ilmenite | Economic | Ore |
Feb 06, 2007 (Mark Puumala) - Sage and Breaks (1982) report that copper-nickel mineralization at this location occurs in an ultramafic raft (dimensions 580 by 60 m) enclosed by a small granitic stock. Patterson (1980) indicates that this intrusion consists of altered gabbro (80%), altered peridotite (10%), minor altered dunite and an oxide-rich layer (10%). Mineralization within this intrusion is reported by Patterson (1980) to consist of primary disseminated sulphide, metamorphosed disseminated sulphide and oxide-layer sulphides. The sulphide content of the intrusion locally exceeds 5 %, with the primary and metamorphosed disseminated sulphides consisting primarily of chalcopyrite and pyrrhotite with exsolved pentlandite. The sulphides are also indicated to be intergrown with magnetite and ilmentie (Patterson 1980). Oxide layer (ilmenomagnetite, ilmenite and gahnite) sulphides include chalcopyrite, bornite, pyrite and cobalt-rich pentlandite. The most favourable assay from this deposit obtained during diamond drilling by Kapkichi Nickel Mines in 1956 is reported to have averaged 1.31% Cu and 0.14% Ni over 6.1 m (Sage and Breaks 1982). Mason et al. (2001) indicate that this deposit contains reserves totaling 7.5 million tons grading 0.41% Cu and 0.10% Ni.
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| G Zone | 2001 | Unclassified | 7500000 | Mason et al. (2001) | 7.5 million tons grading 0.41% Cu and 0.10% Ni. | Copper 0.41 Percent, Nickel 0.10 Percent |
MonoMap - Geology of the Cat Lake-Pickle Lake area, districts of Kenora and Thunder Bay
Publication Number: R207 Page: 125-126 Date: 1982
Author: Sage R.P., Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Mono - Report of Activities 2000, Resident Geologist Program, Thunder Bay North Regional Resident Geologist Program: Thunder Bay North District
Publication Number: OFR6048 Date: 2001
Author: Mason J.K., White G.D., O'Brien M.S., Komar C.L., Stewart J., Debicki R.L., Drost A.P.
Publisher Name: Ontario Geological Survey
Location:
Thesis - The Geology of the Kapkichi Lake Ultramafic-Mafic Bodies and Related Cu-Ni Mineralization, Pickle Lake, Ontario.
Publication Number: Ph.D thesis Date: 1980
Author: Patterson, G.C.
Publisher Name: Carleton University
Location: Thunder Bay RGP
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office