Ontario Geological Survey
Permanent Link to this Record:
MDI31M05NE00054
| Record Name(s) | Cobalt Lake Mining Co. Ltd. - 1906, Mining Corporation of Canada - 1914, Cobalt Properties Ltd. - 1934, Silanco Mining and Refining Co. Ltd. - 1946, Cobalt Consolidated Mining Corp. Ltd. - 1953, Agnico Mines Ltd. - 1968 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1980-Oct-09 |
| Date Last Modified | 2023-Aug-24 |
| Created By | |
| Revised By |
Primary Commodities: Cobalt, Silver
Secondary Commodities: Nickel
Township or Area: Coleman, Coleman
Latitude: 47° 23' 26.13" Longitude: -79° 41' 22.89"
UTM Zone: 17 Easting: 598888 Northing: 5249403 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05NE
Point Location Description: Cobalt Lake Shaft
Location Method: AMIS Site Visit
1906-14: Cobalt Lake Mining Co. Ltd. – several shafts with underground workings (Shaft 1 reached 129 ft.); Shaft 2 sunk to 48 ft.; Shaft 3 sunk to 28 ft. and Shaft 4 sunk to 216 ft.; No. 5 Winze put down to 291 ft.; No. 6 Winze put down in the south part of the property; No. 7 Winze put down in the north. 1914-15: Mining Corporation of Canada Limited : Cobalt Lake was pumped out; prospecting, mining and milling carried out until late in 1932. 1934: Cobalt Properties Limited: small scale work done near surface. 1946: Silanco Mining and Refining Company Limited: new headframe built. 1953-55: Cobalt Consolidated Mining Corporation Limited: pumping activities carried out for 5 months; project abandoned.
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Conglomerate | 1 | Host |
|---|---|---|---|---|
| Claystone | 2 | Slate | Host | |
| Terrigenous-Clastic-Unsubdivided | 3 | Silver-Cobalt | Cobalt Sediments | Is |
| Vein | 4 | Calcite | Is |
Aug 02, 2017 (A Wilson) - Presumably Cobalt sediments were exposed on the 8th.level (elevation 376 feet) in the footwall of the Cobalt Lake fault at some 200 feet west of the No. l shaft. The Cobalt series-Keewatin contact in the hangingwall of the fault in this vicinity is at an elevation of a little over 900 feet. Information available is insufficient to draw contours of the Cobalt series-Keewatin contact in the footwall of the fault at this vicinity. It is clear that the Cobalt series were laid down in a northeasterly-trending trough In Keewatin rocks, but the condition of the contact has been greatly modified by the Cobalt Lake Fault.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 2 | Silver | Economic | Ore | ||||
| 3 | Niccolite | Economic | Ore | ||||
| 4 | Breithauptite | Economic | Gangue |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1908 | 7333 |
Silver 214629110 Cobalt 66317 Nickel 3596 |
Silver Coblat Calcite Vein Deposits of Ontario, p.106-107 | 6,900,708 oz. Ag; 146,073 lbs cobalt; tailings reclamation of 190,684 oz. Ag in 1967 |
File - Resident Geologist file CO-0618
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 84-86, 106-107 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on part of Coleman Township, concession 5, lots 1 to 6, District of Timiskaming
Publication Number: PR1961-04 Page: 90-100 Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Cobalt silver area, northern sheet, Timiskaming District
Publication Number: M2050 Scale: 1:12,000 Date: 1997
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
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