Ontario Geological Survey
Permanent Link to this Record:
MDI42C02SE00104
| Record Name(s) | O'Reilly Scheelite Vein - 1974 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Sep-06 |
| Created By | |
| Revised By |
Primary Commodities: Tungsten
Township or Area: Corbiere
Latitude: 48° 6' 26.15" Longitude: -84° 34' 31.68"
UTM Zone: 16 Easting: 680478.21 Northing: 5331065.6 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02SE
Point Location Description: Occurrence 23 Corbiere compilation map OFR 5587
Location Method: Conversion from MDI
Access Description: The quartz vein is situated on the south side of an Algoma Central Railway cut approximately 500 m east of the south-east end of Pokarney Lake. Access to the railway cut can be made by walking north along the railway tracks leading out of the community of Hawk Junction.
1974: D. O'Reilly discovered scheelite in quartz vein in railway cut.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Corbiere-0020-A1 | 42C02SE8869 | 42C02SE8869 |
| Corbiere-0032 | 42C02SE0301 | 42C02SE0301 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Archean
Dec 07, 2005 (A Wilson) - A scheelite-bearing quartz vein is exposed in an outcrop of intermediate to mafic tuff. The bedding in the tuff is locally graded.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Mafic Tuff | 2 | Tuff | Near |
Dec 07, 2005 (A Wilson) - The quartz vein pinches and swells, reaching a maximum width of 25 to 37 cm but is generally much thinner. The vein consists of milky quartz and rusty weathering ankerite and minor scheelite. The vein cuts carbonate altered intermediate to mafic tuff.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Scheelite | Economic | Ore | ||||
| Ankerite | Alteration | Carbonatization | 1 | Weak | Disseminated |
Dec 07, 2005 (A Wilson) - Grab samples from the vein by the OGS in 1984 returned values ranging from <50 ppm W, to 275 ppm W in granular quartz vein material to 6.5% W form a 10 cm secion of granular white quartz vein with minor carbonate and traces of pyrite. Visible scheelite is apparent in the vein, but is often indistinguishable from the ankerite staining.
| Rank | Classification |
|---|---|
| 1 | Unknown |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 3 | .3 | 85 | 45 |
MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma
Publication Number: OFR5587 Page: Map 2 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Folio - Corbiere Township, District of Algoma
Publication Number: GDIF297 Date: 1997
Author: Sault Ste Marie RGO
Publisher Name: Ontario Geological Survey
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 148 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma
Publication Number: OFR5587 Page: 278 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office