Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41J07NW00050

Record: MDI41J07NW00050

General

Mineral Record Identification
Record Name(s) Coffee Lake - 1983, Commander Lake - 1985, Coffee Lake-Denison - 1991
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Sep-01
Date Last Modified 2022-Sep-16
Created By
Revised By

Commodities

Primary Commodities: Uranium, Thorium



Location

Township or Area: Timmermans

Latitude: 46° 25' 46.61"    Longitude: -82° 56' 32.04"

UTM Zone: 17    Easting: 350778.001   Northing: 5143615.246    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41J07NW

Point Location Description: Diamond drill holes

Location Method: Conversion from MDI

Access Description: On the shore of the western most arm of Coffee Lake approximately 700 metres east of the west boundary of Timmermans Township.



Exploration History

1967: Combined airborne MAG and EM surveys by Denison Mines Ltd. 1969: Drill hole DM 69-3 was drilled to 3212 feet by Denison Mines Ltd.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Timmermans-0018-A1 41J07NW0176 41J07NW0176
Timmermans-0014-A1 41J07NW0072 41J07NW0072
Bolger 0041 41J07NW9370 41J07NW9370
Bolger 0042 41J07NW9390 41J07NW9390
Timmermans-0019-A1 41J07NW0077 41J07NW0077

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Geological Age: Paleoproterozoic  



Geology Comments

Dec 07, 2005 (P Beach) - Radioactive pyritic oligomictic conglomerate of the Matinenda Formation. The average assay was 0.054 % U3O8 and 0.092 % ThO2 over 1.0 foot. (OGS 1983 MDC 25 P 51).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicGangue

Mineral Record Details

References

Mono - Uranium and thorium deposits of northern Ontario

Publication Number: MDC025 Page: 51  Date: 1984

Author: Robertson J.A., Gould K.L.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Townships 155, 156, 161, 162 and parts of 167 and 168, District of Algoma

Publication Number: R013 Date: 1997

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

Location:


Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario

Publication Number: GSC OF 1087 Page: 92  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999


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Ministry Contact Information

For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office