Ontario Geological Survey
Permanent Link to this Record:
MDI42C01NW00045
| Record Name(s) | Umex Anomaly Wa 3-10 - 1975, Umex DDH Wa-12 - 1976, Acme Prospect - 1987 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 2000-Aug-17 |
| Date Last Modified | 2022-Jan-05 |
| Created By | A Wilson |
| Revised By | A Wilson |
Primary Commodities: Gold
Secondary Commodities: Copper, Zinc
Township or Area: Bird
Latitude: 48° 13' 18.68" Longitude: -84° 21' 2.18"
UTM Zone: 16 Easting: 696776.3 Northing: 5344352.88 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C01NW
Point Location Description: Ddh collar Wa-14
Location Method: Data Compilation
Access Description: The site is accessible via ATV along a disused bush road leading south from a forestry road near the Edwards Mine. Alternatively, the site is accessible by float plane from Wawa or Hawk Junction.
1973-76: Umex - ground geophysics, mapping, sampling, 1 ddh (196 ft). 1985-86: International Corona - ground magnetometer and VLF-EM surveys, mapping, sampling. (Bird 0014A1).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| BIRD 0014A1 | 42C08SE0672 | 42C08SE0672 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - Supracrustal rocks in the immediate Goudreau-Lochalsh district consist of cycle 2 felsic to intermediate, pyroclastic metavolcanics which are capped by pyrite-bearing ironstone. To the north are pillowed , massive and schistose, mafic to intermediate metavolcanics and minor intercalations of mafic pyroclastic rocks of cycle 3. Several medium to coarse grained quartz dioritie to dioritie sills and/or dikes intrude all of the metavolcanic rocks. Along the northern margin of the supracrustal sequence, separating cycle 3 mafic metavolcanic rocks from the external granitoids, are thinly-bedded metasedimentary rocks with iminor intercalations of chert-magnetite ironstone.
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate Tuff | 1 | Massive, Tuffaceous | Near |
|---|---|---|---|---|
| Carbonate Ironstone | 2 | Carbonate Facies | Host |
Dec 07, 2005 (A Wilson) - The area is underlain by a sequence of mafic to intermediate metavolcanics and carbonate facies iron formation. These rocks are intruded by a gabbroic intrusive. The iron formation was observed to contain magnetite and 10-15% sulphides.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Sphalerite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Pyrrhotite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - A grab sample taken by Umex returned values of 0.06 oz/t Au, 0.05% Cu, 0.02% Zn and 0.01% Pb.
Map - Precambrian Geology, Bird Township
Publication Number: OFM0218 Scale: 1:15,840 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
MonoMap - Geology of Aguonie, Bird, Finan and Jacobson Townships, District of Algoma
Publication Number: OFR5588 Scale: Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Map - Goudreau-Lochalsh area, District of Algoma, Ontario
Publication Number: ARM49G Scale: 1:31,680 Date: 1997
Author: Bruce E.L.
Publisher Name: Ontario Dept. of Mines
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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office