Ontario Geological Survey
Permanent Link to this Record:
MDI32D12SW00017
| Record Name(s) | Hofmann East Group Occurrence - 1955 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-23 |
| Date Last Modified | 2022-Feb-18 |
| Created By | |
| Revised By |
Primary Commodities: Asbestos
Township or Area: Harker
Latitude: 48° 32' 10.67" Longitude: -79° 46' 40.8"
UTM Zone: 17 Easting: 590206 Northing: 5376631 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 32D12SW
Point Location Description: approximate location of drill holes
Location Method: Based on Assessment
1950-55: C.E. Hofman – ground magnetic survey; DD-2-1003 ft. 1990: Lightval Mines Limited – airborne geophysics.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| KL-1155/12 | 32D12SW0121 | 32D12SW0121 |
| KL-2953/2.13197 | 32D12SW0001 | 32D12SW0001 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Stoughton-Roquemaure
Geological Age: Archean Geochronological Age: MESOARCHEAN
Metamorphism Grade: Greenschist
| Rock Type | Rank | Composition | Texture | Relationship | Peridotite | 1 | Peridotite | Host |
|---|
Jun 24, 2015 (A Wilson) - Asbestos mineralization is confined to the basal peridotitie lay of the Ghost Range Complex which strikes east, dips north and faces north. This ultramafic to mafic layered body has been interpreted to be a sill, or a thick layered flow.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Asbestos | Economic | Ore | ||||
| 4 | Serpentine | Economic | Ore | ||||
| 2 | Talc | Economic | Gangue | ||||
| 3 | Chlorite | Economic | Gangue | ||||
| 4 | Pyrite | Economic | Gangue | ||||
| 5 | Pyrrhotite | Economic | Gangue |
Jun 24, 2015 (A Wilson) - Limited diamond drilling intersected core lengths containing up to 2% asbestos veinlets up to 1/8 inch in width within serpentinized peridotite.
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Scale: Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology of the Highway 101 Area, East of Matheson, Ontario
Publication Number: M2676 Scale: 1:50,000 Date: 2003
Author: Berger B.R., Luinstra B., Ropchan J.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology of Parts of Lamplugh, Frecheville, Stoughton, Harker, Holloway and Marriott Townships, Ghost Range Area
Publication Number: P3615 Scale: 1:20,000 Date: 2010
Author: Dinel E.
Publisher Name: Ontario Geological Survey
Location:
Map - Township of Harker, District of Cochrane, Ontario
Publication Number: M1951-04 Scale: Date: 1997
Author: Satterly J., Hogg N.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of Harker Township
Publication Number: ARV60-07 Scale: Date: 1997
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Asbestos in Ontario
Publication Number: IMR036 Scale: Date: 1998
Author: Vos M.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Scale: Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office