Ontario Geological Survey
Permanent Link to this Record:
MDI42C02NE00020
| Record Name(s) | Garbe Lake Shear - 1983, Garbe Lake West - 1943, Noranda Anomaly C - 1980 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Sep-09 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Aguonie
Latitude: 48° 12' 25.67" Longitude: -84° 30' 46.45"
UTM Zone: 16 Easting: 684776.07 Northing: 5342313.26 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02NE
Point Location Description: Outcrop on steep slope on NW shore of Garbe Lake
Location Method: Data Compilation
Access Description: The area is accessible only by fixed wing or helicopter from Wawa.
1943-45: Leitch Gold Mines Ltd. - stripping, trenching. 1981: Noranda Exploration Co. Ltd. - ground VLF-EM, trenching. 1983: International Corona - prospecting, sampling. 1987-88: Mascot Gold Mines - VLF-EM, soil sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| BIRD 12 | 42C01NW8704 | 42C01NW8704 |
| Aguonie-0030 | 42C08SW0237 | 42C08SW0237 |
| Keating-0017 | 42C07SW0031 | 42C07SW0031 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - The occurrence lies within the western extension of the Cradle Lake Deformation Zone. This domain is a ductile-brittle zone of subparalel, dextral oblique-slip high-strain zones developed within strongly altered and deformed felsic to intermediate metavolcanic rocks.
| Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Chlorite, Sericite | Host |
|---|---|---|---|---|
| Intermediate Tuff | 2 | Tuff | Sheared | Host |
Dec 07, 2005 (A Wilson) - The occurrences is described as a strongly sheared rusty-weathering felsic tuff. These rocks are altered to quartz-sericite schist. The schist is locally pyritic. The schist is in contact with mafic metavolcanic rocks near the eastern end of the shear.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| Sericite | Alteration | Saussuritization | 1 | Medium | Replacement | ||
| Silica | Alteration | Silicification | 2 | Medium | Replacement |
Dec 07, 2005 (A Wilson) - Selected grab samples collected in 1943 returned values of 0.02 and 0.06 oz/t Au. Only one sample collected by International Corona was considered anomalous in gold (32 ppb). Anomalous values of 20 ppb and 50 ppb Au were encountered in soil samples collected at the east and west end of the shear zone.
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | .3 |
Map - Goudreau-Lochalsh area, District of Algoma, Ontario
Publication Number: ARM49G Scale: 1:31,680 Date: 1997
Author: Bruce E.L.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology, Aguonie Township
Publication Number: OFM0217 Scale: 1:15,840 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Folio - Aguonie Township, District of Algoma
Publication Number: GDIF172 Date: 1997
Author: Sault Ste Marie RGO
Publisher Name: Ontario Geological Survey
Location:
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