Ontario Geological Survey
Permanent Link to this Record:
MDI000000001010
| Record Name(s) | Wolverine Bay - 2002 |
|---|---|
| Related Record Type | |
| Record Status | Occurrence |
| Date Created | 2011-Feb-07 |
| Date Last Modified | 2022-Jan-05 |
| Created By | N Bennett |
| Revised By | N Bennett |
Primary Commodities: Copper
Township or Area: BMA 536 882
Latitude: 53° 37' 31.09" Longitude: -88° 18' 57.83"
UTM Zone: 16 Easting: 412962.003 Northing: 5942638.999 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 53H09SW
Point Location Description: Point located from assessment report.
Location Method: Based on Assessment
Access Description: Access best achieved by boat or floatplane on Shibogama Lake or by helicopter from airport located in Kasabonika.
No previous work has been conducted on the property aside from prospecting by Eno H. Anderson along the shoreline of Shibogama Lake. Government mapping and airborne geophysical surveys cover the project area. This is report 193 Geology of the Winisk Lake Area by Thurston et al 1979 and aeromagnetic series maps by ontario department of mines and geological survey of canada 1965 to 1968. The 2005 exploration program conducted by Doug Parker consisted of line cutting, prospecting and 30 soil samples.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.30798 | 20000000861 | 20000000861 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Geological Age: Archean
Feb 07, 2011 (N Bennett) - Exact location of the showing on the shoreline of the lake is unknown as sample gps data is not given in the report. However the estimated location is likely within 100-200m of the actual location. The showing is described by John Mason (MNDM, 2002) as follows: "the Wolverine Bay Occurrence consists of mineralization associated with a 10m wide gabbro unit in contact with mafic volcanics, pillowed to massive basalt to the north, and mafic tuff to the south. The entire exposure is apporximately 40m across. The gabbro is coarse grained, consisting of hornblende (after pyroxene), chlorite (after hornblende), and feldspar. The gabbro is dark green to black, and is highly deformed for the most of the 10m with rare panels or lozenges of less deformed gabbro present. The shear zone strikes 274 degrees and dips subvertically. Deformation is intense and anastamozing at several points along the shoreline. Quartz lenses now occupy permeability created by the deformation event. Azurite, malachite 1-3%, chalcopyrite and <1% pyrite occur in the quartz vein material. Rare disseminated pyrite occurs in the gabbro.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Adjacent |
|---|---|---|---|---|
| Gabbro | 1 | Hornblende, Chlorite And Feldspar | Coarse Grained | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Malachite | Economic | Ore | ||||
| 4 | Azurite | Economic | Ore |
Feb 07, 2011 (N Bennett) - Mineralization is reported (Eno H. Anderson) to have returned assays up to 5% Cu, 30ppm Ag and 467ppb Au and elevated Zn and Pb. Base metal occurrences including massive sulphides have been identified by by local prospectors in the area of the property. 30 soil samples were taken and returned anomalous Fe, Ni, Cr and Zn. These elevated metals in humus correlate well with the strike extension of a known gabbro hosted Cu-Au bearing shear zone and may indicated a 250m strike extension of this favourable gabbro host.
| Rank | Classification |
|---|---|
| 2 | Mafic-Ultramafic Intrusion |
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
| 1 | Sheared |
| 1 | Vein |
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office