Ontario Geological Survey
Permanent Link to this Record:
MDI52O06NW00015
| Record Name(s) | Dorothy West - 2022, Cooper Zones - 1995, West Prospect - 2023 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1995-May-19 |
| Date Last Modified | 2023-Aug-08 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Meen Lake Area
Latitude: 51° 25' 50.08" Longitude: -91° 19' 35.43"
UTM Zone: 15 Easting: 616334.381 Northing: 5699037.032 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O06NW
Point Location Description: Diamond drill holes
Location Method: Conversion from MDI
Access Description: The Cooper Zones are located about 77 km west of Pickle Lake. The Cooper Zones are located about 5.5 km north of Dorothy Lake and 4.5 km south of Wellein Lake. Access to the Cooper Zones is best had by appropriately equipped aircraft to Cooper Lake (local name for the first large lake east of Meen Lake) followed by a traverse south to the area of the zones.
1986: Geocanex Ltd. and St. Joe Canada Inc. commissioned separate airborne mag and EM surveys which included the area around this occurrence. 1988: Bond Gold Canada Inc. did ground mag and EM surveys and geological mapping on the Cooper Lake grid which includes the area of the occurrence. This was followed by a diamond-drill program. A total of 7 drill holes tested the Cooper Zones. 1990: Bond Gold Canada Inc. did additional diamond-drilling on the Cooper Lake grid, including the Cooper Zones. 2020: Ardiden acquired the property. 2023: Ardiden drilled 4 DDH totalling 1628 m.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Meen-Dempster
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Contains |
|---|---|---|---|---|
| Gabbro | 2 | Gabbro | Shear Zone | Host |
| Diorite | 3 | Diorite | Shear Zone | Host |
Dec 07, 2005 (B Nelson) - The diorite, away from the shear zones, is well foliated and uniform in grain size. In the shear zones, the diorite is schistose and appears very finely laminated (<1 mm); with alternating laminae of chlorite/amphibole and feldspar. The gabbro is coarse grained and is weakly foliated to massive. Locally the gabbro is pegmatitic. This is indicated by an increase in feldspar content and by an increase in crystal size. Where cut by shear zones, the gabbro is schistose and altered to chlorite, talc, sericite, carbonate and feldspar.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Chlorite | Economic | Ore | ||||
| 3 | Carbonate | Economic | Ore | ||||
| 4 | Epidote | Economic | Ore | ||||
| 5 | Gold | Economic | Ore | ||||
| 6 | Molybdenite | Economic | Ore | ||||
| 7 | Pyrite | Economic | Ore | ||||
| 8 | Quartz | Economic | Ore | ||||
| 9 | Sericite | Economic | Ore | ||||
| 10 | Tourmaline | Economic | Ore | ||||
| Quartz | Alteration | Silicification | 1 | ||||
| Sericite | Alteration | Sericitization | 2 | ||||
| Chlorite | Alteration | Chloritic | 3 | ||||
| Unspecified | Alteration | Carbonatization | 4 | ||||
| Epidote | Alteration | Epidotization | 5 |
Dec 07, 2005 (B Nelson) - An interesting feature of the porphyry dykes is the large (up to 3 cm diameter) zones of anhedral feldspar phenocrysts. The best intersection from the Cooper 1 zone averaged 4.27 g/t Au over 5.23 m (includes 5.86 g/t Au over 1.80 m). The best intersection from the Cooper 2 zone averaged 2.00 g/t Au over 3.7 m (includes 3.42 g/t Au over 0.83 m). The best 'G' zone intersection was in the G2 zone and averaged 3.77 g/t Au over 2 m. Typically, the gold tenor of the 'G' zones is low, ranging between 1.7 g/t Au and 3.77 g/t Au over widths of 0.5 m to 2.7 m. NOTE: The Cooper zones and 'G' zones are considered to be extensions of the Umex-Dorothy Lake deposit.
Aug 08, 2023 (Therese Pettigrew) - Mineralization appears to be contained within a series of metavolcanics, altered basalts, and gabbros. DDH DR-23-34 returned 0.2 g/t Au over 41 m including 0.98 g/t Au over 4.0 m. DDH DR-23-35 returned 0.24 g/t Au over 18.48 m including 1.24 g/t Au over 0.98 m. DDH DR-23-36 returned 1.14 g/t Au over 5.25 m. DDH DR-23-37 returned 0.91 g/t Au over 16.0 m (Ardiden ASX release August 7, 2023).
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| 2 | Vein |
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:
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 - Geological series, Precambrian geology, Meen Lake area, eastern part, Kenora District (Patricia Portion)
Publication Number: P2620 Scale: 1:15,840 Date: 1983
Author: Stott G.M., LaRocque C.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral Deposits of the Central Portion of Uchi Subprovince, Volume 1, Meen Lake to Kesagiminnis Lake Portion
Publication Number: OFR5869 Page: 287 Date: 1993
Author: Seim G.Wm.
Publisher Name: Ontario Geological Survey
Location:
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