Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31M05NE00049

Record: MDI31M05NE00049

General

Mineral Record Identification
Record Name(s) Province of Ontario - 1906, Cobalt Provincial Mining Co. Ltd. - 1909, Twin Silver Mines Ltd. - 1924, Clifton Consolidated Mines Ltd. - 1924, leased to G.D. Lynch - 1928, leased to R. Sullivan - 1930, G. Martin - 1937, Cobalt Products Ltd. - 1949, Silanco Mining and Smelting Co. Ltd. - 1943, Sudbury Contact Mines Ltd. - 1965
Related Record Type Compound
Related Record(s)
Record Status Past Producing Mine Without Reserves or Resources
Date Created 1980-Sep-25
Date Last Modified 2022-Aug-22
Created By
Revised By

Commodities

Primary Commodities: Silver, Cobalt

Secondary Commodities: Nickel



Location

Township or Area: Gillies Limit

Latitude: 47° 22' 36.36"    Longitude: -79° 41' 11.5"

UTM Zone: 17    Easting: 599152.64   Northing: 5247870.5    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 31M05NE

Point Location Description: Provincial Mining Shaft

Location Method: Data Compilation



Exploration History

1910: The vein upon which the main [provincial] shaft was sunk, though showing much native silver at the surface, did not prove persistent or rich in depth, and the Department had the alternative of spending a further sum, probably a large one, in the endeavour to find payable ore, or of offering the property for sale and permitting private enterprise to supply the capital for the test and reap the benefit should it be successful. 1910-1923: Cobalt Provincial Mining Company Ltd. property acquired; 1924-1925: Clifton Consolidated Mines Ltd. – extensive underground work. 1938-1968: drifting and raising; 4-DDH; small scale mining and salvage opertaions have been continued. 1941-1953: Cobalt Products Ltd. – underground workings; DD-4. 1971: Teck Corporation Limited – mag and EM surveys. 1998-2007: Cabo Mining Corp. – DD-13-1910.51 ft.; geological mapping, stripping, sampling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.20048 31M05SE2015 31M05SE2015
2.29134 31M05SE2078 31M05SE2078
2.28288 31M05SE2078 31M05SE2078
2.27440 31M05SE0071 31M05SE0071
2.28255 31M05SE2068 31M05SE2068
2.18933 31M05SE2004 31M05SE2004
2.18899 31M05SE2005 31M05SE2005
2.27941 31M05SE2067 31M05SE2067
2.28634 31M05SE2075 31M05SE2075
2.34330 20000001958 20000001958

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Formation Group: Cobalt Group

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Conglomerate 1 Hanging Wall
Sandstone 2 Greywacke Bedded Footwall

Lithology Comments

Aug 02, 2017 (A Wilson) - On the dump of shaft No.2 are pieces of black carbonaceous bedded Keewatin sediments. This may indicate that the easterly extension of the band of Keewatin sediments exposed at surface in the southwest corner of Nipissing claim R.L.406 passes through the No,2 shaft workings. The Cobalt Series which is 50 ft. think in the western part of the claim thickens to 350 ft. in the east part of claim where it occupies a paleovalley trending NNE in the Keewatin surface. The Cobalt series is underlain by steeply dipping black carbonaceous Keewatin sediments in the eastern part of claim in the vicinity of shaft No. 2.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
2SilverEconomicOre

Mineralization Comments

Aug 02, 2017 (A Wilson) - No.2 shaft vein and No.1 shaft vein furnished almost the entire production. Shaft No.2 vein strikes N.65ºE. and dips vertically. Gareau in charge of exploration for Cobalt Products Limited, reports that the vein carried silver only in the conglomerate above the bedded greywacke (217 to 242 feet below the shaft collar); below this was cobalt mineralization, which in places was disseminated through the sediments and difficult to recognize. In No.1shaft vein, very high grade silver occurred but the production was disappointing. Near shaft No.3 minor veins strike N.25ºW. No clear cut relationship is apparent between the position or metallic content of the veins and the well-marked trough-like depression in the Cobalt series – Keewatin contact.



Mineral Record Details

Classification
RankClassification            
1 Vein (Cobalt-Type)
Characteristics
Rank Characteristic            
1 Vein
Production Data
Year Tonnes Commodities Reference Comment
1940 418 Silver 8923494
Cobalt 24731
Nickel 1290
MDC010, p.226-227 total production 1908-1940 (intermittent): 54,473 lb Co; and 346,897 oz. Ag; 2842 lbs. Ni

References

Map - Cobalt silver area, southwestern sheet, Timiskaming District

Publication Number: M2051 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, 226-227  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: 96-99  Date: 1998

Author: Thomson R.

Publisher Name: Ontario Dept. of Mines

Location:


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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office