Ontario Geological Survey
Permanent Link to this Record:
MDI31M05SE00141
| Record Name(s) | Mohawk Cobalt Silver Series Mines Ltd. - 1907, Sherritt Gordon Mines Ltd. - 1961 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Oct-23 |
| Date Last Modified | 2023-Aug-23 |
| Created By | |
| Revised By |
Primary Commodities: Cobalt
Secondary Commodities: Copper, Nickel, Silver
Township or Area: Coleman
Latitude: 47° 22' 7.52" Longitude: -79° 44' 55.11"
UTM Zone: 17 Easting: 594478 Northing: 5246903 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05SE
Point Location Description: Shaft
Location Method: AMIS Site Visit
1907: Mohawk Cobalt Silver Mines Ltd. – shallow pitting; and one shaft; the shaft is about 200 ft. deep with 4 levels. 1960-61: Sherritt Gordon Mines Ltd. DD-5-2597 ft.; EM survey.
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Diabase | 1 | Diabase | Intrudes |
|---|---|---|---|---|
| Lamprophyre-Unsubdivided | 2 | Intrudes | ||
| Vein | 4 | Cobalt-Bearing | Intrudes |
Aug 01, 2017 (A Wilson) - A vein, traversing the Nipissing sill and striking N73E and dipping 80ºS, is exposed in the 44 ft. level drift for 38 ft. Aplite dikes associated with calcite and quartz veinlets follow irregular fracture zone some 2 ft. wide. Disseminated cobalt and silver mineralization in small quantity occurs in the wall rock of veinlets.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 2 | Silver | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Gangue | ||||
| 4 | Pyrite | Economic | Gangue |
Aug 01, 2017 (A Wilson) - On the dump are pieces of vein material with pink and also grey calcite (commonly in the central part of the vein) and quartz (in part as well-shaped crystals up to a half-inch in length) along the outer edges of the vein. Cobalt and nickel mineralization as well as a little chalcopyrite and pyrite were noted.
| Rank | Classification |
|---|---|
| 1 | Vein (Cobalt-Type) |
File - Resident Geologist file CO-0772
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 245 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on parts of Coleman Township and Gillies Limit to the south and southwest of Cobalt
Publication Number: PR1960-03 Page: 41-42 Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
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:
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