Ontario Geological Survey
Permanent Link to this Record:
MDI31M05SE00016
| Record Name(s) | Foster-Cobalt Mining Co. Ltd. - 1906, leased to Argentum Mines Ltd. - 1909, Glen Lake Cobalt Mines Ltd. (leased) - 1915, Cobalt Products Ltd. Silanco Mining and Smelting Corp. Ltd. - 1943, Penn-Cobalt Silver Mines Ltd. - 1980, Cobalt Consolidated Mining Corp. Ltd. - 1953, Agnico-Mines Ltd. - 1958, University Shaft - 1964 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Past Producing Mine With Reserves or Resources |
| Date Created | 1980-Oct-03 |
| Date Last Modified | 2023-Aug-23 |
| Created By | |
| Revised By |
Primary Commodities: Cobalt, Silver
Secondary Commodities: Copper, Gold, Lead, Nickel, Zinc
Township or Area: Coleman
Latitude: 47° 22' 23.07" Longitude: -79° 39' 53.8"
UTM Zone: 17 Easting: 600789 Northing: 5247488 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05SE
Point Location Description: Foster Shaft
Location Method: AMIS Site Visit
1905-08: Foster Cobalt Mining Company – prospecting, mining. 1909: property leased to Argentun Mines Ltd. 1915-16: Glen Lake Cobalt Mines Limited. 1918-1920: lease sold to Mining Corporation of Canada Limited./ Central Operating Company Limited. 1925-1945: small leasing operations were carried out from time to time. 1943: Silanco Mining & Smelting Corporation Limited. 1950-52: Penn-Cobalt Silver Mines Ltd. – surface diamond drilling; underground mining and exploration; at end of 1952 the project of producing base metals was abandoned.
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Sandstone | 1 | Greywacke | Contains |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Footwall | ||
| Diabase | 3 | Diabase | Intrudes | |
| Vein | 4 | Calcite | Host |
Jul 27, 2017 (A Wilson) - Flat lying Cobalt Series sediments lying unconformably above steeply dipping Keewatin volcanics are overlain by Nipissing diabase (in the NW½ of the claim) where the diabase forms the SW end of the SW trending Kerr Lake Arch. Calcite veins were productive in the Keewatin and Cobalt rocks. 11 silver-cobalt producing veins, including the foster No. 5 Vein, the largest base metal producer in the Cobalt Camp, strike NW (sub) parallel to bedding on the Keewatin volcanics where the base metals occur as replacements of chert beds and not in vein forms.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Silver | Economic | Ore | ||||
| 3 | Sphalerite | Economic | Gangue | ||||
| 4 | Galena | Economic | Gangue | ||||
| 5 | Chalcopyrite | Economic | Gangue | ||||
| 6 | Pyrrhotite | Economic | Gangue | ||||
| 7 | Pyrite | Economic | Gangue |
Jul 27, 2017 (A Wilson) - Silver and cobalt have been produced and the largest base metal occurrence found to date in the Cobalt camp is the No.5 vein of the Foster claim. The Foster claim is one of the more intensively worked claims in the camp; work has been carried on intermittently for over 50 years. The veins in the Penn-Cobalt group lie in general along either of two directions - one northeasterly, the other about S.60 E. It seems significant that the northeasterly veins are nearly parallel to the axis of the Peterson Lake diabase basin; many of the southeasterly veins, nearly at right angles to this axis, coincide with interflow sedimentary bands in the Keewatin. On the Foster claim silver and cobalt was produced from veins with Keewatin as well as Cobalt Series host rocks. In the middle part of this claim it was noticeable that many of the veins stopped in the basal conglomerate of the Cobalt series and did not go into the overlying argillite member. The veins are in places silver-cobalt bearing in part cobalt-bearing; the cobalt-bearing parts are predominantly under the silver.
| Rank | Classification |
|---|---|
| 1 | Vein (Cobalt-Type) |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Foster-Cobalt Mining Co. Ltd. | 1961 | Unclassified | 181437 | PR1961-06, p.72 | Copper .38 %, Lead 1.62 %, Silver 29.14 %, Zinc 2.42 % |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1956 | 18159 |
Silver 36061060 Cobalt 207552 Copper 10951 Nickel 9882 |
Silver Cobalt Calcite Vein Deposits of Ontario, p. 132-133 | Total Production 1905-1956 : Silver – 1,159,390 oz. ($777,308.00); Cobalt – 457,164 lbs.($276, 446.00); Nickel – 21,766 lbs. - $12,603.00; Copper 24,121 lbs - $9052.00 |
File - Resident Geologist file CO-0664
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Cobalt silver area, southeastern sheet, Timiskaming District
Publication Number: M2052 Scale: 1:12,000 Date: 1997
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 84-86, 132-133 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on parts of Coleman Township, concession 4, lots 1 to 5, and Gillies Limit, the eastern "A" claims, District of Timiskaming
Publication Number: PR1961-06 Page: 64-73 Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
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