Ontario Geological Survey
Permanent Link to this Record:
MDI000000000293
| Record Name(s) | A Location - 1939 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2007-May-23 |
| Date Last Modified | 2022-Feb-14 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Arsenic
Township or Area: Hewitt Lake Area
Latitude: 52° 29' 5.45" Longitude: -92° 54' 51.46"
UTM Zone: 15 Easting: 505820 Northing: 5814970 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 53C07NW
Point Location Description: Map on p. 74 in Bateman (1939)
Location Method: Data Compilation
1938: OGS staff member J.D. Bateman described the showing. 1971: Spirit Lake Mines Ltd. carried out trenching and mapping.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 53C07NW0013 | 20000004863 | 20000004863 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Belt: North Spirit Lake
Geological Age: Neoarchean
May 23, 2007 (Mark Puumala) - A description of the area geology is provided in MDI53C07NW00025.
| Rock Type | Rank | Composition | Texture | Relationship | Porphyry-unsubdivided | 1 | Intermediate | Contains |
|---|---|---|---|---|
| Sandstone | 2 | Greywacke | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Arsenopyrite | Economic | Ore |
Oct 10, 2018 (Mark Puumala) - This occurrence is described by Bateman (1939) as a 10 to 15 cm wide massive arsenopyrite vein that fills a fracture in a body of andesite porphyry adjacent to an approximately north-south-striking metasedimentary (greywacke) contact. The mineralized vein is reported to be paralleled by an approximately 7.5 m wide zone containing a number of narrow, arsenopyrite-mineralized quartz stringers. Pyrite mineralization is also reported in the greywacke approximately 30 m south of this occurrence. Bateman (1939) reports that a 12.7 kg bulk sample of massive sulphide collected from this occurrence assayed 0.11 oz/ton Au and 72% arsenopyrite, while a grab sample assayed 0.12 oz/ton Au.
| Rank | Classification |
|---|---|
| 1 | Alkalic Porphyry |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
MonoMap - Geology of North Spirit Lake area, District of Kenora (Patricia Portion)
Publication Number: R150 Scale: Date: 1977
Author: Wood J.
Publisher Name: Ontario Division of Mines
Location:
Part - Geology of the North Spirit Lake area
Publication Number: ARV47-07.002 Scale: Date: 1997
Author: Bateman J.D.
Publisher Name: Ontario Dept. of Mines
Location:
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