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Ontario Geological Survey
Permanent Link to this Record:
MDI000000000294
| Record Name(s) | Camp Island - 1939, Wemichikosi Island - 1939 |
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| 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' 50.12" Longitude: -92° 55' 3.04"
UTM Zone: 15 Easting: 505600 Northing: 5816350.01 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 53C07NW
Point Location Description: From Bateman (1939).
Location Method: Data Compilation
1955-56: Spirit Lake Gold Mines Ltd. carried out magnetometer and EM geophysical surveys and drilled 8 short DDH totalling 380.7 m. 1971-73: Spirit Lake Mines Ltd. carried out geophysical surveys, trenching, geological mapping, and 954 m of drilling in several holes. 1976: Hilltop Minerals Ltd. drilled 2 DDH.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.3417 | 53C10SW0014 | 53C10SW0014 |
| 2.390 | 53C07NW0011 | 53C07NW0011 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Belt: North Spirit Lake
Geological Age: Neoarchean
May 23, 2007 (Mark Puumala) - The area geology is described in MDI53C07NW00025.
| Rock Type | Rank | Composition | Texture | Relationship | Diorite | 1 | Diorite | Contains |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Arsenopyrite | Economic | Ore | ||||
| 1 | Tourmaline | Economic | Gangue |
May 23, 2007 (Mark Puumala) - The main Camp (Wemichikosi) Island occurrence is described by Bateman (1939) as consisting of a 20 cm wide, northeast-striking vein of massive arsenopyrite hosted within a diorite intrusion. The vein is indicated to have been traced for an approximate strike length of 20 m. This vein is reported by Bateman (1939) to be located approximately 75 m north of a parallel fracture zone in diorite that is approximately 15 m wide and >150 m long, based on the results of diamond drilling carried out in the area by Spirit Lake Gold Mines in 1937. This fracture zone contains widely-spaced and variably-oriented 5 to 8 cm tourmaline-quartz stringers mineralized with fine-grained massive arsenopyrite. Bateman (1939) also mapped numerous steep-dipping (80 degrees to the northwest), northeast-striking pyrite stringers in the area of this occurrence. According to Wood (1977), significant portions of the host intrusion (Bijou Point Complex) have been sheared and altered. An assay value of 0.25 oz/ton Au was reported from this occurrence by Bateman (1939).
| Rank | Classification |
|---|---|
| 2 | 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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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office