Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31M05NE00040

Record: MDI31M05NE00040

General

Mineral Record Identification
Record Name(s) Silver Cross Cobalt Mining Co. Ltd. - 1907, Morgan Silver Cross Mines Ltd. - 1948
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

Commodities

Primary Commodities: Cobalt, Nickel

Secondary Commodities: Silver



Location

Township or Area: Coleman

Latitude: 47° 22' 52.72"    Longitude: -79° 38' 45.37"

UTM Zone: 17    Easting: 602208   Northing: 5248428    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 31M05NE

Point Location Description: Shaft

Location Method: AMIS Site Visit



Exploration History

1907-10: Silver Cross Cobalt Mining Co. – surface prospecting; 3 shafts sunk (22 ft., 60 ft. deep; and 150 ft. deep with one level. 1941: limited geophysical work. 1949-50: 33 surface diamond drill holes-6000 ft.; mapping;1951:Morgan Silver Cross Mines Ltd. - 21- DDH-4637.4 ft. 1953-55: resistivity survey; anomalies tested by 4 diamond drill holes with a total length of 2000 ft. 1979: PEC Explorations Ltd. – DD-9-2501 ft.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
CO-0718/ 23 31M05SE0110 31M05SE0110

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Formation Group: Cobalt Group

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Terrigenous-Clastic-Unsubdivided 1 Contains
Lamprophyre-Unsubdivided 2 Intrudes
Diabase 3 Diabase
Vein 4 Cobalt Intrudes

Lithology Comments

Aug 01, 2017 (A Wilson) - Keewatin sediments cut by a Haileyburian lamprophyre dike are overlain by Cobalt sediments. The northwest trending Cross -Lake olivine diabase dike crosses the northeast striking parallel faults. Several cobalt-bearing veins with little silver, chalcopyrite, galena and sphalerite occur in the Keewatin sediments. The No. 2 shaft vein, striking ENE with subvertical SSE dip, contained in a trench east of the shaft pockets of massive cobalt with nickel and cobalt mineralization




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
5SilverEconomicOre
3ChalcopyriteEconomicGangue
4GalenaEconomicGangue
5SphaleriteEconomicGangue

Mineralization Comments

Aug 01, 2017 (A Wilson) - The No. 2 shaft vein extended for a horizontal length of 300 ft. An assay return of a sample of massive mineralization over a width of one inch is: cobalt 15.30 %; nickel 3.66% and silver 0.48 oz/t.



Mineral Record Details

Classification
RankClassification            
1 Vein (Cobalt-Type)
Characteristics
Rank Characteristic            
1 Vein
Production Data
Year Tonnes Commodities Reference Comment
1940 1 Cobalt 1403
MDC 10, p. 204-205 Total Production 1940-42 Cobalt - 3091 lbs

References

File - Resident Geologist files CO-0740, CO-0741

Publication Number: Date:

Author:

Publisher Name:

Location: Kirkland Lake RGP office


Mono - Silver cobalt calcite vein deposits of Ontario

Publication Number: MDC010 Page: 84-86, 204-205  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: 30-33  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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Ministry Contact Information

For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office