Ontario Geological Survey
Permanent Link to this Record:
MDI41N10NW00003
| Record Name(s) | Coutu Main Showing - 1955 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1982-Nov-10 |
| Date Last Modified | 2022-Jul-22 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Asselin
Latitude: 47° 38' 26.86" Longitude: -84° 46' 17.12"
UTM Zone: 16 Easting: 667388.82 Northing: 5278783.32 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41N10NW
Point Location Description: Vein on former claims SSM40560
Location Method: Conversion from MDI
Access Description: The only access to the site is via gravel road from highway 17 east to Gamitagama Lake. Once at Gamitigama Lake, access is via canoe across the lake and then a short 500 m traverse south west to the showing. The property is located in Lake Superior Provincial Park.
1955-59: Coutu Gold Mines Ltd. - 2 pits, 12 ddh ( 1024 ft). 1956: all prospecting and staking in provincial parks prohibited.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| ASSELIN 0016 | 41N10SW0006 | 41N10SW0006 |
| ASSELIN 0019 | 41N10SW0001 | 41N10SW0001 |
| ASSELIN 0011 | 41N10SW0009 | 41N10SW0009 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Gamitagama
Geological Age: Mesoproterozoic Geochronological Age: 1.10 MA Geochron. Age Ref.: GOO VOL 1
Dec 07, 2005 (A Wilson) - The Gamitagama greenstone belt is geographically separated from the Mishiwawa part of the Michipicoten greenstone belt. It can be subdivided into a sedimentary rock assemblaged and a volcanic rock dominated assemblage. The Gamitigama Lake complex is a calc-alkalic sock which ranges in composition from olivine gabbro to syenite, intrudes the eastern half of the Gamitagama assemblage.
| Rock Type | Rank | Composition | Texture | Relationship | Quartz Monzonite | 1 | Porphyritic | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz | Host | |
| Olivine Gabbro | 3 | Olivine Gabbro | Near |
Dec 07, 2005 (A Wilson) - The showing lies within a northeast-trending fault. Olivine gabbro, olivine norite, gabbro, norite and mafic metavolcanics and uralitized and locally serpentinized on either side of the fault. Quartz monzonite pods and dikes are intruded along the fault and in subsidiary fractures parallel to the fault. A quartz vein occurs 1.5-3 m southeast of the fault and is predominately within the monzonite, but partially extends into the gabbro.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore |
Dec 07, 2005 (A Wilson) - The quartz vein is fractured parallel to the margins which locally contain visible gold. No sulphed mineralization has been observed at the site. Assays taken across the vein within the monzonite range from trace to more than 1.5 oz/t Au, but within the gabbro the gold values are commonly less than 0.05 oz/t Au (OGS 1961). A chip sample taken across 4.3 feet assayed $12.45 gold (1956). Within the vein there appears to be a 200-foot long by 30 foot wide ore shoot raking 45 degrees SW. In the shoot, the vein ranges in thickness from 0.5-7 feet and contains 0.5 to 1 oz/t Au, the shoot does not reach surface.
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 9 | 3 | 61 | 45 | 68 |
Map - Township 30, Range 19 [Asselin Township], District of Algoma
Publication Number: P0129 Scale: 1:15,840 Date: 1997
Author: Ayres L.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Townships 31 and 30, range 19, Algoma District
Publication Number: M2138 Scale: 1:31,680 Date: 1968
Author: Ayres L.D.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of townships 31 and 30, ranges 20 and 19, District of Algoma
Publication Number: R069 Page: 65-68 Date: 1969
Author: Ayres L.D.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 35 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
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