Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000002434| Deposit Name(s) | Glenorchy West - 1991, Bennett Lake North Zones 10, 11, 12 - 1991 |
|---|---|
| Deposit Status | discretionary occurrence |
| Date Created | 2020-Sep-29 |
| Date Last Modified | 2020-Sep-29 |
| Created By | T Pettigrew |
| Revised By | T Pettigrew |
Primary Commodities: zinc
Township or Area: Bennett Lake Area
Latitude: 48° 45' 39.32" Longitude: -92° 26' 52.87"
UTM Zone: 15 Easting: 540566 Northing: 5401026 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52C16SW
Point Location Description: Map of Zone 10, 11, 12 in Assessment file 52C16SW0010
Location Method: based on assessment
1975: The Hanna Mining Company carried out geological mapping, ground magnetometer and EM surveys, and pitting. 1991-92: L. Cousineau and R. Cousineau carried out stripping, trenching, and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| OP91-353 | 52C16SW0010 | Open |
| 2.14554 | 52C16SW8250 | Open |
Province: Superior
Subprovince: Wabigoon
Belt: Fort Frances-mine Centre
Geological Age: Archean
09/29/2020 (T Pettigrew) - The Glenorchy West occurrence is underlain by metavolcanics rocks of the Swell Bay-Mine Centre greenstone belt, at the southern boundary of the Wabigoon Subprovince. These metavolcanics rocks are situated in a wrench zone between the Quetico and Seine River Faults (Blackburn and Hinz, 1996).
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| felsic metavolcanics | 1 | contains | ||
| vein | 2 | quartz | host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore | ||||
| 2 | sphalerite | economic | ore | ||||
| 3 | chalcopyrite | economic | ore | ||||
| 4 | galena | economic | ore |
09/29/2020 (T Pettigrew) - The occurrence is hosted by an altered, brecciated, and locally quartz-phyric rhyolite flow. Foliation in the rhyolite was measured at 064 degrees. Intense sericitization is pervasive throughout the outcrop causing the rhyolite to adopt a pistachio-green colour with a waxy lustre. Mineralization is hosted within an 8 m wide zone of extensive, quartz-carbonate veining. These veins range from less than 1 cm to 10 cm in width. The veins are variably oriented, however, a general strike of 090 degrees is observed. Some of the veins are folded and exhibit indications of sinistral movement. Ladder veins and tension gashes are also present. Sulphide mineralization, in decreasing abundance, includes pyrite, sphalerite, chalcopyrite and galena. The sulphides are spatially associated with, but not exclusive to, the quartz-carbonate veins (Blackburn and Hinz, 1996). A felsic tuff with quartz stringers returned assays of 2150 ppm Zn, 2230 ppm Zn, and 2740 ppm Zn (Assessment report 52C16SW0010).
Publication - Kenora Resident Geologist’s District – 1995; In: Report of Activities 1995, Resident Geologists, p. 39-41
Publication Number: OFR5943 Date: 1996
Author: Blackburn, C.E., Hinz, P.
Publisher Name: OGS
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