Ontario Geological Survey
Permanent Link to this Record:
MDI31M05SE00108
| Record Name(s) | Ophir Cobalt Mines Ltd. - 1908, V.J. Adams - 1952, Silver Crater Mines - 1954 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1980-Sep-29 |
| Date Last Modified | 2023-Aug-23 |
| Created By | |
| Revised By |
Primary Commodities: Silver, Cobalt, Nickel
Secondary Commodities: Bismuth, Lead
Township or Area: Coleman
Latitude: 47° 20' 53.38" Longitude: -79° 38' 37.75"
UTM Zone: 17 Easting: 602432 Northing: 5244747 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05SE
Point Location Description: Ophir Shaft.
Location Method: AMIS Site Visit
1908-1942: Ophir Cobalt Mines Ltd. – No. 1 Ophir Shaft sunk to 300 ft.; about 850 ft. of lateral work done on the 200 and 300 ft levels; No 2 Ophir Shaft sunk. 1917-1920: People’s Silver Mines Ltd. – from the 400 ft. level of the Mayfair Shaft 1200 ft. of drifting was done on the Ophir claim; No. 4 winze was sunk. 1952-57 – leased to Silver Crater Mines -200 ft. level of Mayfair Shaft was extended 295 ft. into the Ophir Claim to connect with the Ophir shaft and 750 ft. of cross cutting and drifting was done. 1957: sub-leased to Juno Metals Corporation. 1973: R.C. McAllister owner.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 33 | 31M05SE0103 | 31M05SE0103 |
| 63.3518 | 31M05SE0401 | 31M05SE0401 |
| 36 | 31M05SE0102 | 31M05SE0102 |
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Gabbroid-Unsubdivided | 1 | Host |
|---|---|---|---|---|
| Vein | 2 | Calcite | Contains |
Jul 26, 2017 (A Wilson) - Steeply dipping Keewatin pillowed andesite that strikes NW and faces NE is exposed on the claim. Nipissing diabase that forms the SE northwesterly dipping limb of the New Lake diabase basin cuts the Keewatin rocks 400 ft below the surface. A small NW trending depression occurs on the limb in the vicinity of No. 1 and 2 Ophir shafts. Two NE striking faults cross the property, the Silver Crater Fault and the Mayfair Fault.of the Victory Shaft to connect with No. 4 winze. Diamond drilling was also done.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Silver | Economic | Ore | ||||
| 3 | Bismuth | Economic | Ore |
Jul 26, 2017 (A Wilson) - Cobalt and nickel mineralization with some native silver and in places bismuth occurred along the vein. At the best silver occurrence No. 4 winze was put down to the diabase contact. One very small pocket, rich in silver (some 4000 oz. to the ton) was found but the vein was not workable for either silver or cobalt content.
File - Resident Geologist files CO-0734, CO-0782
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, 182-183 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on parts of Coleman Township and Gillies Limit, near New Lake, southeast of Cobalt, District of Timiskaming
Publication Number: PR1961-02 Page: 27-32 Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
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:
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