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Ontario Geological Survey
Permanent Link to this Record:
MDI31M05SE00131
| Record Name(s) | N. Oslund - 1913, South Keora Mines - 1926, Audley Gold Mines Ltd. - 1951, J.J. Gray - 1968 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1980-Sep-19 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Silver, Cobalt
Secondary Commodities: Gold
Township or Area: Gillies Limit
Latitude: 47° 20' 21.11" Longitude: -79° 42' 14.19"
UTM Zone: 17 Easting: 597907.61 Northing: 5243673.49 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05SE
Point Location Description: Lot: CL C.1220 Concession: Block 9
Location Method: Data Compilation
1913: Nat Oslund discovered a cobalt-bearing vein on claim C.1220. 1926: South Keora Mines Ltd. acquired the claim. 1927-1928: South Keora Mines Ltd. put a shaft put down 109’ and 143’ of drifting done on the 100’ level. An open cut 30’ deep was made northeast of the shaft. 1951: Audley Gold Mines optioned the property, which was geologically surveyed but diamond drilling (four holes designated A-l, to A-4 on Map P. 82) was confined very largely to claim C.1220. The results obtained apparently afforded little inducement for further effort. 1997: Wabana Exploration Inc completed ground geophysics including magnetometer, VLF, and gradiometric surveys, overburden stripping, prospecting and sampling as well as assaying. 2012: Outcrop Explorations Ltd completed 31 line km of magnetometer and VLF surveys. 2013: Outcrop Explorations Ltd completed prospecting and soil sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.54267 | 20000008012 | 20000008012 |
| 2.17714 | 31M05SE0072 | 31M05SE0072 |
| 2.52205 | 20000007349 | 20000007349 |
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Calcite | Intrudes |
|---|---|---|---|---|
| Intermediate lava flow-unsubdivided | 2 | Andesite | Host |
Mar 21, 2019 (A Wilson) - The South Keora Shaft-vein is 300’ long and 4 inches wide. The vein strikes N25E and dips 70º W. A second vein 100’ long occurs east of and parallel to the shaft vein. The South Keora shaft vein traverses Keewatin andesitic lava. The present ground surface was presumably less than two hundred feet below the bottom Nipissing diabase contact prior to erosion of the latter. The vein, said to be up to 4 inches wide, strikes N.25º E., and dips about 70º W.; silver and cobalt minerals occur with calcite. Mr. Oslund reports that individual assays from selected places gave high cobalt (12 to 15 percent) and silver (over 1,000 oz.per ton) assay returns.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Silver | Economic | Ore | ||||
| 3 | Gold | Economic | Ore | ||||
| 4 | Chalcopyrite | Economic | Ore | ||||
| 5 | Galena | Economic | Ore |
Jan 30, 2020 (A Wilson) - Mr. Oslund stated that visible gold, a speck of 1/8 inch diameter, was found occurring in close association with cobalt ore in the vein and that assays corroborated this occurrence. A large presently caved open cut in deep overburden was put down along the vein at some 60 feet northerly of the shaft indicating that the vein had been traced at surface over a length of 150 feet. On this property a considerable amount of trenching has been done where overburden was sufficiently shallow to permit.Sampling done circa 1913 by N. Oslund gave returns of 12-15% cobalt and over 1000 oz/ton silver.
| Rank | Classification |
|---|---|
| 1 | Vein (Cobalt-Type) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
Mono - Preliminary report on parts of Coleman Township and Gillies Limit to the south and southwest of Cobalt
Publication Number: PR1960-03 Scale: Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Scale: Date: 1968
Author: Sergiades A.O.
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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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office