Ontario Geological Survey
Permanent Link to this Record:
MDI31M05SE00089
| Record Name(s) | Nu-Silco Mines Ltd. - 1948, Cobalt A-53 Silver Mining Co. - 1920, Silco Mines Ltd. - 1943, optioned to Coniagas Mines Ltd. - 1950, Optioned to Yellowknife Bear Mines Ltd. - 1951, optioned to Rayrock Mines Ltd. - 1959, Copper Man Mines Ltd. - 1963, leased to Glen Lake Silver Mines Ltd. - 1966 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1980-Sep-17 |
| Date Last Modified | 2023-Aug-23 |
| Created By | |
| Revised By |
Primary Commodities: Silver
Secondary Commodities: Cobalt
Township or Area: Gillies Limit
Latitude: 47° 21' 44.18" Longitude: -79° 40' 58.54"
UTM Zone: 17 Easting: 599451.63 Northing: 5246264.49 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05SE
Point Location Description: Shaft
Location Method: Data Compilation
1910-1920: claim A-54. 1920-1922: Cobalt A-53 Silver Mining Company. 1943-1968: Silco Mines Ltd.;1948-1968:Nu-Silco Mines Ltd. 1943-1949: lateral work done in Shaft A-53; diamond drilling. 1944:DD-1-329 ft.; 1947: DD-25-5078’.1949: 7 DDH-780 ft. 1950-51: optioned to Coniagas Mines Ltd.- diamond drilling. 1951-52: Yellowknife Bear Mines Ltd. – DD-4-1236’ and 9-UG-DDH; 1951-52: optioned to Yellowknife Bear Mines Ltd. 1953-1955: DD on claims A92, 54 and 53. 1959-1961: optioned to Rayrock Mines Ltd.; DD-21. 1963-1964: optioned to Copper Man Mines Ltd.; UGD-8-2595’;, 1966-1969: leased to Glen Lake Silver Mines Limited 1969:Nu-Silco Mines Limited – ground magnetic survey; ratio resistivity survey; DD-8-1506 ft..1968: Nu-Silco Mines Ltd. surface diamond drilling; 1976: Canadaka Mines Ltd.
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 | Andesite | Sheared | Host |
|---|---|---|---|---|
| Conglomerate | 2 | Contains | ||
| Gabbroid-Unsubdivided | 3 | Brecciated | Intrudes | |
| Gabbroid-Unsubdivided | 4 | Keeweenawan | Intrudes |
Aug 04, 2017 (A Wilson) - The Mine Fault vein is the most extensively explored occurrence on the property. The productive part of this vein was in the Cobalt Series sediments over a length of some 130 feet in the vicinity of the Exit raise to surface. The thickness of the sediments in this vicinity is about 40 feet and the stope was less than 30 feet in height. Most of the fault in either Cobalt series or Keewatin where exposed in the underground workings is barren of vein material. At two places along the fault in Keewatin on the 100-foot level minor occurrences of cobalt mineralization were found. Steeply dipping Keewatin pillowed andesite flows that strike ESE and face NNE are exposed on the western part of the property. Dark intrusive dikes containing granite inclusions intersect the Keewatin rocks. Easterly dipping Cobalt Series conglomerate overlies the Keewatin rocks in the central part of the property; Nipissing diabase occurs in the eastern part of the property; the dip of the diabase is such that the Cobalt Series conglomerate pinches out below the diabase so that diabase directly overlies Keewatin Rock. Maximum thicknessesses of the Nipissing diabase and Cobalt series conglomerate pinches out below the diabase so that diabase directly overlies Keewatin rock. Maximum thicknesses of the Nipissing diabase and Cobalt series conglomerate are 500 ft. and 190 ft. respectively. A Keweenawan diabase dike 35 ft. wide cuts the Cobalt Series conglomerate on claim A92. The Mine Fault traverses claim A54 for 700 ft. striking N76ºW and dipping 70º. The Mine Fault traverses claim A54 for 700’ striking N76ºW and dipping 70ºN. The South Silco Fault traverses claim A54, striking N80ºW.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Silver | Economic | Ore | ||||
| 3 | Pyrite | Economic | Gangue | ||||
| 4 | Chalcopyrite | Economic | Gangue |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1946 | 1 | MDI | Ag 2251 lbs; silver recovered from the Mine Fault Vein |
FIle - Resident Geologist files CO-1082 (Nu-Silco Mines, Limited), CO-1107
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 84-85, 224 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on parts of Coleman Township, concession 3, lots 1 to 3, and Gillies Limit, blocks 1 and 2; claims A 48 to 58 and A 88 to 100, District of Timiskaming
Publication Number: PR1961-07 Page: 99-108 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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