Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI52N04NW00045| Deposit Name(s) | Winter Road Lake West - 1988 |
|---|---|
| Related Deposit Type | None |
| Deposit Status | occurrence |
| Date Created | 1991-Mar-21 |
| Date Last Modified | 2020-Aug-14 |
| Created By | Q Unknown |
| Revised By | T Pettigrew |
Primary Commodities: silver
Township or Area: McDonough
Latitude: 51° 9' 28.1" Longitude: -93° 52' 33.78"
UTM Zone: 15 Easting: 438737 Northing: 5667739 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04NW
Point Location Description: DDH NMP-87-09 from Assessment report 52N04NW0002
Location Method: based on assessment
Source Map: OGS 1977 P.1240 MCDONOUGH TWP
Sources Map Scale: 1:12 000
Access Description: Vehicle travel along the Pine Ridge road north of Red Lake
1986-87: Pure Gold Resources completed geological mapping and soil sampling, electromagnetic and magnetic geophysical surveys, and drilled 22 DDH including 2 holes totalling 541.3 m in the area of this occurrence.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 30 | 52N04NW0002 | Open |
| 2.10376 | 52N04NW0009 | Open |
| 2.10537 | 52N04NW0007 | Open |
| 29 | 52N04NW0008 | Open |
Province: Superior
Subprovince: Uchi
Belt: Red Lake
Geological Age: Archean
Tectonic Assemblage: Houston And Graves
08/14/2020 (S Lewis) - This MDI is located at the boundary point between the Houston and Graves assemblage. The Houston assemblage is characterised by metasedimentary rocks consisting of wacke, siltstone, argillites, and conglomerates. The Graves assemblage is characterised by intermediate volcanic rocks consisting of pyroclastics rocks that are intermediate to felsic calc-alkaline and biotite plagioclase-phyric lapilli tuffs. However, mafic volcanics and quartz feldspar porphyries were intersected in diamond drill holes by Noramco Exploration Inc. Diamond drill holes by Noramco Exploration and Pure Gold Resources indicate sericite and carbonate alteration.
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| intermediate intrusive | 1 | biotite hornblende granodiorite | contains | |
| vein | 2 | quartz | host | |
| felsic metavolcanics | 3 | tuff | near | |
| porphyry | 4 | quartz feldspar | near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore | ||||
| 2 | chalcopyrite | economic | ore | ||||
| 3 | galena | economic | ore | ||||
| 4 | magnetite | economic | ore |
08/14/2020 (S Lewis) - Pure Gold Resources identified four areas that may be of economic interest; 1) quartz-diorite intrusion, 2) a conductive stratabound horizon in the mafic flow unit, 3) a fuchsite-chert-wacke-mafic flow sequence, and 4) a sulphide-bearing conglomerate horizon. DDH NMP-87-09 returned 2.7 oz/t Ag and 0.435 ppm Au over 2.13 m at 52.9 m from a quartz vein containing chalcopyrite, pyrite, galena, and magnetite in a biotite hornblende granodiorite.
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