Ontario Geological Survey
Permanent Link to this Record:
MDI53C13NE00007
| Record Name(s) | Thomson North - 1983 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1983-Dec-20 |
| Date Last Modified | 2022-Jan-30 |
| Created By | |
| Revised By |
Primary Commodities: Zinc
Township or Area: North Trout Lake Area
Latitude: 52° 53' 36.23" Longitude: -93° 38' 46.7"
UTM Zone: 15 Easting: 456519.751 Northing: 5860607.387 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 53C13NE
Point Location Description: General
Location Method: Data Compilation
Access Description: 200 KM N of Red Lake
1966: Trenching by E.J. Thomson. 2007: Anaconda Gold Corp. Conducted a prospecting program. They suggest that further drilling be completed in this area. No significant assays reported at this time
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| RL 53C13 NE | 20000002839 | 20000002839 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Belt: Favourable Lake
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate Tuff | 1 | Tuff | Host |
|---|---|---|---|---|
| Ironstone-unsubdivided | 2 | Adjacent | ||
| Granitoid-Unsubdivided | 3 | Dikes | Adjacent | |
| Mafic lava flow-unsubdivided | 4 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Pyrite | Economic | Ore | ||||
| 10 | Pyrrhotite | Economic | Ore | ||||
| 15 | Sphalerite | Economic | Ore |
Oct 24, 2007 (Mark Puumala) - Ayres (1974) described the Thompson North occurrence as a trenched showing that exposes a contorted, 12 m thick iron formation (with a 3 m thick layer described as granofels) and felsic to intermediate tuff between mafic metavolcanics. The most significant mineralization occurs in the tuff, which is described as rusty-weathering, and laminated to thin-bedded. Ayres (1974) indicates that mineralization consists of concordant to discordant, irregular lenses and veinlets up to 5 mm wide of sphalerite, pyrrhotite and minor pyrite. Mineralization is reported to be erratically distributed, but is most abundant near the contacts with granitic dikes. The most significant grab sample assay reported by Ayres (1974) was 1.56% Zn from a sample of tuff mineralized with 5% sphalerite, 5% pyrrhotite and 5% pyrite.
| Rank | Classification |
|---|---|
| 1 | Unknown |
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
MonoMap - Geology of the Trout Lakes area, District of Kenora (Patricia Portion)
Publication Number: R113 Scale: Date: 1974
Author: Ayres L.D.
Publisher Name: Ontario Division of Mines
Location:
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