Ontario Geological Survey
Permanent Link to this Record:
MDI52O06SW00001
| Record Name(s) | Group 42 - 1970, Cochenour Willans- Selco - 1970 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 2003-Jul-07 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Zinc
Township or Area: Nabemakoseka Lake Area
Latitude: 51° 15' 18.41" Longitude: -91° 21' 29.55"
UTM Zone: 15 Easting: 614567.695 Northing: 5679475.536 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O06SW
Point Location Description: The Cochenour Willans-Selco Group 42 property is located 1 km northwest of Fry Lake.
Location Method: Based on Assessment
Access Description: Access to the property is by appropriately equipped aircraft to Fry Lake, and then a northwest traverse to the property.
From 1969 to 1973, Cochenour Willans Gold Mines Ltd. was active in the Slate Falls and Drum Lake areas. Geologic mapping, airborne mag and EM, ground mag and EM, prospecting and diamond drilling were completed on several grids in a joint venture with Selco Exploration Company Limited. Low copper-zinc values were reported in a few of the holes (B-42-70-1A to 7). The exploration program by no means exhausted the posssibility of sizeable ore bodies in the area.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52O06SW-0010-A1 | 52O06SW0010 | 52O06SW0010 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Meen-Dempster
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Claystone | 1 | Argillite | Contains |
|---|---|---|---|---|
| Felsic Tuff | 1 | Siliceous Tuff | Contains | |
| Mafic lava flow-unsubdivided | 3 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Sphalerite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore |
Jun 18, 2007 (Mark Puumala) - This discretionary occurrence is based on the reported presence of massive and disseminated sulphides on the log for Cochenour Willans-Selco diamond drill hole B-42-70-4 (AFRI# 52O06SW0010). An approximately 5.5 m section of material logged as black meta-argillite was reported to contain 20 to 30% fine and massive bands of pyrite with tract sphalerite and chalcopyrite. Approximately 60 cm of massive sulphide was also noted within this mineralized horizon. The meta-argillite unit was reported to be bounded on both sides (i.e., to the northeast and southwest) by siliceous tuff that was reported to contain up to 8% disseminated pyrrhotite. The upper portion of the drill hole (i.e., northeast of the mineralized horizon) was logged as mafic metavolcanics and amphibolite. Massive sulphide mineralization was also noted in a number of other drill holes advanced by Cochenour Willans-Selco on the same property. For example, an 8.5 m section of massive pyrite containing trace sphalerite was logged in ddh B-42-70-1A (AFRI# 52O06SW0010). The massive sulphides were found between horizons logged as felsic tuffaceous greywacke and volcanic breccia. Disseminated pyrite and/or pyrrhotite were also noted in thes horizons. Amphibolitized mafic metavolcanics were also logged in the upper portion of this drill hole to the northeast of the felsic metavolcanics and massive sulphide. Disseminated sulphides consisting of pyrite, pyrrhotite and occasional sphalerite and chalcopyrite were noted in the felsic metavolcanic/metasedmentary sequence on a number of other drill hole logs in AFRI# 52O06SW0010.
| Rank | Classification |
|---|---|
| 1 | VMS Base Metal |
| Rank | Characteristic |
|---|---|
| 1 | Massive |
Map - Cat River-Kawinogans Lake area, District of Kenora (Patricia Portion), Ontario
Publication Number: ARM44F Scale: 1:126,720 Date: 1997
Author: Harding W.D.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Cat Lake-Pickle Lake area, districts of Kenora and Thunder Bay
Publication Number: R207 Date: 1982
Author: Sage R.P., Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Map - Cat Lake-Pickle Lake, geological compilation series, Kenora and Thunder Bay districts
Publication Number: M2218 Scale: 1:253,440 Date: 1976
Author: Sage R.P., Breaks F.W., Troup W.R.
Publisher Name: Ontario Division of Mines
Location:
Part - Geology of the Cat River-Kawinogans Lake area
Publication Number: ARV44-06.002 Date: 1997
Author: Harding W.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Moosetegon Lake, Kenora District
Publication Number: M2482 Scale: 1:31,680 Date: 1983
Author: Wallace H.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Slate Falls area, District of Kenora (Patricia Portion)
Publication Number: R232 Page: 64-65 Date: 1985
Author: Wallace H.
Publisher Name: Ontario Geological Survey
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office