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Ontario Geological Survey
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MDI31M05NE00140
| Record Name(s) | Devil's Rock Silver Mining Company - 1907, Nasco Cobalt Silver Mines Ltd. - 1955 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1980-Sep-03 |
| Date Last Modified | 2023-Aug-24 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Cobalt, Silver
Township or Area: Lorrain, Lorrain, Lorrain
Latitude: 47° 23' 59.01" Longitude: -79° 35' 17.33"
UTM Zone: 17 Easting: 606533 Northing: 5250552 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05NE
Point Location Description: Adit
Location Method: AMIS Site Visit
1907: 4 adits were driven west from the shore of Lake Timiskaming. 1955: Nasco Cobalt Silver Mines Ltd. – DD-9-5828.5', drill hole 65-3 returned 96 g/t Ag over 2.5 cm; 530 m north, 240 m west of the adit.
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Quartz Diabase | 1 | Quartz Diabase | Contains |
|---|---|---|---|---|
| Vein | 2 | Quartz-Calcite | Intrudes |
Aug 18, 2017 (A Wilson) - Nipissing diabase containing a series of quartz-calcite veins. The veins occur in Nipissing diabase that gently dips to the south.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 3 | Silver | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Gangue |
Aug 18, 2017 (A Wilson) - The best assay returned 5% chalcopyrite, 5% cobalt minerals and 51.4 g/t silver.
Dec 09, 2021 (Q Unknown) - ASSAYS: 51.4 G/T AG (1.5 OZ/T), REF INDEX: (3) DIAMOND DRILL 1952-1965, ADJACENT OCCURRENCE: DRILL HOLE 65-3, 96G/T AG/2.5CM; 530M N, 240M W OF ADIT.
| Rank | Classification |
|---|---|
| 1 | Vein (Cobalt-Type) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
File - Resident Geologist file CO-1440
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Cobalt silver area, northern sheet, Timiskaming District
Publication Number: M2050 Scale: 1:12,000 Date: 1997
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on the geology of the north part of Lorrain Township (concessions 7 to 12), District of Timiskaming
Publication Number: PR1960-01 Page: 34-35 Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 338 Date: 1968
Author: Sergiades A.O.
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