Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000003456

Record: MDI000000003456

General

Mineral Record Identification
Record Name(s) Tommyhow Lake East - 1991, BHP TL-91-5 - 1991
Related Record Type
Related Record(s)
Record Status Discretionary Occurrence
Date Created 2023-Jun-27
Date Last Modified 2023-Jun-27
Created By
Revised By

Commodities

Primary Commodities: Copper



Location

Township or Area: Whitebirch Lake Area

Latitude: 49° 50' 30.76"    Longitude: -89° 44' 6.7"

UTM Zone: 16    Easting: 303347   Northing: 5524639    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52H13SE

Point Location Description: DDH TL-91-5 from Assessment report 52H13SE9189

Location Method: Based on Assessment



Exploration History

1991: BHP Minerals Canada Ltd. carried out electromagnetic surveys and drilled 1 DDH totalling 240.5 m.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
OM91-027 52H13NE2001 52H13NE2001
2.14143 52H14NW1004 52H14NW1004
2.14755 52H13NW0001 52H13NW0001
19 52H13SE9189 52H13SE9189

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Obonga Lake

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Quartz-Feldspar Porphyry 1
Gabbro 2
Felsic Tuff 3 Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ChalcopyriteEconomicOre
2PyrrhotiteEconomicOre

Mineralization Comments

Jun 27, 2023 (Therese Pettigrew) - DDH TL-91-5 returned 2030 ppm Cu from within a quartz biotite rhyolite tuff (Assessment report 52H13NE2001).



Mineral Record Details

Classification
RankClassification            
1 VMS Base Metal

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Ministry Contact Information

For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office