Ontario Geological Survey
Permanent Link to this Record:
MDI31M05NE00041
| Record Name(s) | Silver Bar Mining Co. Ltd. - 1905, Preston East Dome Mines Ltd. - 1912, Cobalt Products Ltd. - 1940, Mensilvo Mines Ltd. - 1946, Silver Arrow Mines Ltd. - 1947, Silver Crater Mines Ltd. - 1954, Juno Metals Corp. - 1957, Silver Summit Mines Ltd. - 1962, Silver Bar - 1983 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1980-Oct-07 |
| Date Last Modified | 2023-Aug-24 |
| Created By | |
| Revised By |
Primary Commodities: Silver
Secondary Commodities: Copper, Zinc, Lead
Township or Area: Coleman
Latitude: 47° 22' 57.74" Longitude: -79° 39' 40.57"
UTM Zone: 17 Easting: 601048 Northing: 5248563 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05NE
Point Location Description: Shaft
Location Method: Data Compilation
1905: Silver Bar Mining Company Limited - surface work, shaft sinking and surface diamond drilling. Several shafts with underground development; No 1 Shaft-100 ft. deep; No.2 Shaft- 140 ft. deep; No. 3 Shaft – 40 ft. deep; No. 4 shaft 70 ft. deep. No. 6 shaft – 40 ft. deep. No. 7 shaft – 200 ft. deep with levels at 140’ and 200’ 1962-64: development for the Mensilvo claim and adjoining Savage property was as follows, drifting 4060 ft.; cross-cutting 592 ft.1912-13 Preston East Dome Mines Limited.- from1936-44 small leasing operations were carried out by individuals and companies.; 1945: Van Tassel Silver Mining Syndicate Limited – dewatering, drove a crosscut northerly to the No. 2 shaft. 1946; Mensilvo Mines Limited. Carried out operations from1946 to 1954. 1954-56: Silver Crater Mines Limited acquired a lease on the property. 1957: Juno Metals Corporation. 1958-59: Coballoy Mines and Refiners Limited – property acquired. 1962-64: development for Mensilvo claim and adjoining Savage property – drifting 4060’; cross-cutting 592”; raising 1457’ and 149 UG-17,921’ drill holes; 1967-68: 313W drive on third level of the Alexandra shaft of the neighbouring Silverfields property was extended west to the Silver Summit property.
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Footwall |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | Hanging Wall | ||
| Vein | 3 | Calcite, Quartz | Host |
Aug 02, 2017 (A Wilson) - Keewatin rocks cut by Haileyburian lamprophyre dikes are intruded by the Nipissing diabase sill. The upper contact of the diabase sill strikes north and dips sub-horizontally. The property is traversed by four faults: in SE corner by Juno Metals Fault that strikes NE and dips 25ºNW; in NE portion by two faults, one strikes WNW and the other WSW with dip of 37º N; and in southwest corner by a NNW striking fault. Silver bearing veins mostly occur within the Nipissing diabase. The silver produced came mainly from a group of small veins passing through shaft No. 1. Base metal mineralization such as galena, chalcopyrite, zinc blende, pyrite and marcasite occur in association with the Juno Metals Fault.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Silver | Economic | Ore | ||||
| 2 | Galena | Economic | Gangue | ||||
| 3 | Chalcopyrite | Economic | Gangue | ||||
| 4 | Sphalerite | Economic | Gangue | ||||
| 5 | Pyrite | Economic | Gangue |
Aug 02, 2017 (A Wilson) - ) An assay from a surface diamond drill holes returned 596.0 oz./t Ag and 8.65% Co. DDH 7 Returned an assay of 596.0 oz./t Ag and 7.75 oz./t Co. DDH 11 71.2 oz. t. Ag and 6.35% Co. DDH 9 836.9 oz./t Ag and 8.65 % Co. DDH 10 740.2 oz/t Ag and 8.75 % Co. DDH 8 3024.4 oz/t Ag. DDH 10 740.2 oz/t Ag and 8.75 % Co. DDH 8 3024.4 oz/t Ag.
| Rank | Classification |
|---|---|
| 1 | Vein (Cobalt-Type) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1953 | 2426 |
Silver 1442921 Ounce per Ton |
MDC 10, p.138-139 | 46,391 oz. Ag. |
File - Resident Geologist file CO-0689
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Mono - Preliminary report on part of Coleman Township, concession 5, lots 1 to 6, District of Timiskaming
Publication Number: PR1961-04 Page: 47-51 Date: 1998
Author: Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
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 - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 84-86, 138-139 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
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