Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41J08NW00069

Record: MDI41J08NW00069

General

Mineral Record Identification
Record Name(s) Pecors Zone (Northwest part) - 1968, Pecors Lake (West Property) - 1953, Pardee Zone - 1983
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1991-Sep-01
Date Last Modified 2022-Apr-26
Created By
Revised By

Commodities

Primary Commodities: Uranium

Secondary Commodities: Thorium



Location

Township or Area: Joubin

Latitude: 46° 23' 19.37"    Longitude: -82° 29' 12.95"

UTM Zone: 17    Easting: 385673   Northing: 5138312.005    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41J08NW

Point Location Description: approximate

Location Method: Based on Assessment

Access Description: South west shore of Pecors Lake, 3 kilometres west of the east boundary of Joubin Township, 2.7 kilometres north of the south township boundary.



Exploration History

1953-1959: Algom Uranium Mines Limited - airborne geophysics, 17 d.d. holes totalling 11,197 feet. 1976: Property now owned by Rio Algom Ltd.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
JOUBIN 0029-A1/63.441 41J08NW0116 41J08NW0116
BEANGE 0054 41J07NE0080 41J07NE0080

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Quartz Arenite 1 Near
Claystone 2 Hanging Wall
Conglomerate 3 Host
Quartz Arenite 4 Footwall

Lithology Comments

Nov 19, 2010 (A Wilson) - Diamond drilling intersected a sequence of quartzite, argillite and conglomerate in the vicinity of the Pecors Lake Fault. Radio active conglomerate is exposed on surface over approximately 600 feet. These units dip approximately 26° to the north.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1BranneriteEconomicOre
2UraniniteEconomicOre
3MonaziteEconomicOre

Mineralization Comments

Nov 19, 2010 (A Wilson) - Ten widely spaced drill holes over an area 1,800 feet by 1100 feet indicated an average grade of 0.046% U3O8 over a width of 4.9 feet. The best intersections obtained by Algom Uranium Mines Ltd. returned 0.035% and 0.03% ThO2 over 1.3 feet and 0.025% and 0.035% ThO2 over 7.5 feet. Two deep holes drilled from the northeast side of the lake intersected 7 radioactive conglomerate bands. A 1.3 thick band at 1310.7 ft. contained 0.04% U3O8 and 0.03% ThO2. A 7.5 foot band at 1338.5 feet contained 0.03% U3O8 and up to 0.04% ThO2.



Mineral Record Details

Classification
RankClassification            
1 Paleoplacer

References

Map - Township 143, District of Algoma, Ontario

Publication Number: M2001 Scale: 1:15,840    Date: 1997

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Geological compilation series, Blind River-Elliot Lake sheet, districts of Algoma and Sudbury

Publication Number: P0304 Scale: 1:126,720    Date: 1997

Author: Giblin P.E., Leahy E.J., Robertson J.A.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology of townships 143 and 144

Publication Number: R004 Page: 47-48  Date: 1997

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Uranium and thorium deposits of northern Ontario

Publication Number: MDC009 Page: 30-31  Date: 1968

Author: Robertson J.A.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Sault Ste. Marie-Elliot Lake, geological compilation series, Algoma, Manitoulin and Sudbury districts

Publication Number: M2419 Scale: 1:253,440    Date: 1979

Author: Giblin P.E., Leahy E.J.

Publisher Name: Ontario Geological Survey

Location:


Mono - Uranium and thorium deposits of northern Ontario

Publication Number: MDC025 Page: 30  Date: 1984

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

Publisher Name: Ontario Geological Survey

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: 103  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

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


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