Ontario Geological Survey
Permanent Link to this Record:
MDI31M05NE00037
| Record Name(s) | King Edward Mining Company - 1908, Watts - 1938, King Cobalt - 1980, United Cobalt Mines Ltd. - 1951, Rix Athabasca Uranium Mines Ltd. - 1960, Silver Century - 1984, Silver Cliff Mine - 1909, York Ontario Silver Mines Ltd. - 1913, National Mines Ltd. - 1916 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1980-Oct-08 |
| Date Last Modified | 2023-Aug-24 |
| Created By | |
| Revised By |
Primary Commodities: Cobalt, Silver
Secondary Commodities: Copper, Lead, Nickel
Township or Area: Coleman
Latitude: 47° 23' 28.69" Longitude: -79° 39' 17.13"
UTM Zone: 17 Easting: 601523 Northing: 5249527 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M05NE
Point Location Description: Shaft
Location Method: Data Compilation
1905-1919; Development restricted to exploration of the Upper diabase contact. Several adits from the east-facing bluff of the diabase beside the Cross Lake were driven west and southwest to connect with Shafts 1, 2, 5 and 7. King Edward winze put down vertically 860 ft on No. 4 vein. 1959-60: underground sampling from tunnel at Airgiod; DD-1. Drifting 3407 ft.; cross cutting 3131 ft.; raising 3824 ft. and 377 underground diamond-drill holes, totalling 52,196 ft. 1960-64: Underground workings by Rix Athabasco were laid out to explore the Lower diabase.No. 1 winze sunk to 285 ft. to give a total vertical depth of 1135 ft. below adit No. 1. 1982 Silver Century Exploration Limited concluded a long exploration cross cut, started in1982 at the underground workings of the King Edward Mine. 1962: Rix Athabasca Uranium Mines Ltd. - optioned property; UG drilling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| CO-0777 | 31M05NE0408 | 31M05NE0408 |
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 | Basalt | Contains |
|---|---|---|---|---|
| Gabbroid-Unsubdivided | 2 | Host | ||
| Vein | 3 | Calcite | Contains | |
| Lamprophyre-Unsubdivided | 4 | Micaceous | Contains | |
| Granitoid-Unsubdivided | 5 | Contains |
Jul 25, 2017 (A Wilson) - Steeply dipping Keewatin volcanics that strike north are intruded by the west side of a domed Nipissing quartz diabase sheet up to 1000 ft. thick that dips about 40º beneath the mine workings. Lamprophyre and feldspar porphyry dikes occur locally underground. Calcite veins up to 15 inches wide occur that are mineralized with chloanthite, the diarsenite of nickel, as well as silver and cobalt. The Nipissing diabase sill, 1168 ft. thick, is intrusive into Keewatin rocks. It is cut by the northwest trending Cross-Lake olivine diabase dike. The upper contact of the diabase sill strikes NNW and dips 18º ENE. The Cyril Lake Fault striking northeast with 60º NW dip traverses the King Cobalt claim. The host rocks for the silver-cobalt bearing veins are both diabase and Keewatin sediments. Veins No. 4 and 5 were the most important producers. Early production was restricted to the vicinity of the upper diabase contact, while after 1960 production was mostly form veins in veins in Keewatin rocks below the Lower diabase contact. All of the production has come from the Nipissing diabase, but all from Keewatin. A silver-cobalt vein was discovered on the Watts claim about 1905. From 1907 until 1910 intensive underground operations were carried on, and in 1908 a mill was erected to treat the ore. These early operations were at shallow depth, less than 150 feet from surface,, In 1913, York Ontario Silver Mines Limited, who had taken over the mine, put down a vertical drill hole from the bottom (at that time 352 feet below the adit level), of the No. l winze on the No. 4 vein; this determined the position of the bottom contact of the Nipissing diabase. In 1916, National Mines Limited continued the winze to a depth of 860 feet below its collar on the adit level and did lateral work until 1917- During that year and in 1918 mill tailings, which had been dumped in Cross Lake, were pumped and retreated. A small amount of underground work was done in 1919 by the same company.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Chalcopyrite | Economic | Gangue | ||||
| 4 | Silver | Economic | Gangue | ||||
| 5 | Galena | Economic | Gangue |
Jul 25, 2017 (A Wilson) - Sample taken from tunnel assayed $19.00 Au. Chalcopyrite, galena and nickel minerals are associated with veins in proximity to both Upper and Lower diabase contacts. The cross cut completed by Silver Century Explorations Limited, is completely within Archean mafic volcanic rocks and immediately below a Nipissing diabase sill. Six to 8 good calcite vein structures were exposed along its Length. Two new massive cobalt veins were intersected at the end of the cross-cut. And a few good silver values were encountered from limited diamond drilling at this location. The veins occur beneath structures mined in the past from an Archean cap exposed on the top of the Nipissing sill (Nova Scotia Mine.) The total amount of silver mined from these veins was 678,629 ounces (1905 to 1938). In late 1960, a very encouraging silver-cobalt intersection(average silver content of 14 oz. per ton over 3-8 feet,including a half foot at 374 oz. per ton) was obtained. The intersection was in Keewatin volcanic rocks; a small calcite vein was present; most of the silver occurred as disseminations bf native silver leaf in what appeared to be an altered tuff.
| Rank | Classification |
|---|---|
| 1 | Vein (Cobalt-Type) |
| Rank | Characteristic |
|---|---|
| 1 | Concordant |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1905 | 53357 |
Silver 40255146 Cobalt 1574 Copper 2689 Nickel 595 |
MDC 010, p.142-143 | cobalt 3,466 tons ($6393.00) nickel 1310 lbs ($1074.00) copper 18,618 lbs; ($5922.00) silver 1 294 233 oz. ($1,201,506.00) |
Article - Cobalt Resident Geologist area, Northeastern Region
Publication Number: MP122.007 Page: 201 Date: 1997
Author: Owsiacki L.
Publisher Name: Ontario Geological Survey
Location:
File - Resident Geologist files CO-0566, CO-0693, CO-0761, CO-0778, CO-0779
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Compend - Report of activities, 1983, Regional and Resident Geologists
Publication Number: MP117 Page: 176 Date: 1984
Author: Kustra C.R.
Publisher Name: Ontario Geological Survey
Location:
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Page: 84-86, 142-143 Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Preliminary report on part of Coleman Township, concession 5, lots 1 to 6, District of Timiskaming
Publication Number: PR1961-04 Page: 23-27 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:
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