Ontario Geological Survey
Permanent Link to this Record:
MDI52E11SE00022
Record Name(s) | Stevens Island NE - 1989 |
---|---|
Related Record Type | Simple |
Related Record(s) | |
Record Status | Occurrence |
Date Created | 1991-Jan-24 |
Date Last Modified | 2022-Mar-02 |
Created By | |
Revised By |
Primary Commodities: Gold, Molybdenum
Township or Area: Snowshoe Bay Area
Latitude: 49° 34' .68" Longitude: -95° 1' 55.38"
UTM Zone: 15 Easting: 353069.52 Northing: 5492457.21 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52E11SE
Point Location Description: Transfer
Location Method: Conversion from MDI
1989-90: Exploration Brex Inc. carried out mapping, geophysical surveys, and drilled 2 DDH totalling 328.88 m. 1995: Consolidated Professor Mines Ltd. conducted magnetic and VLF-EM surveys. 1997: Consolidated Professor Mines Ltd. drilled 2 DDH totalling 543.5 m. 2010: Everton Resources Inc. drilled 1 DDH totalling 213 m.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
---|---|---|
24 | 52E11SE9087 | 52E11SE9087 |
23 | 52E11SE9123 | 52E11SE9123 |
2.17803 | 52E11SE0003 | 52E11SE0003 |
2.44785 | 20000006050 | 20000006050 |
2.16240 | 52E11SE0002 | 52E11SE0002 |
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
May 15, 2020 (Therese Pettigrew) - The Shoal Lake area is located in the western part of the Wabigoon Subprovince and is comprised of Archean volcanic and sedimentary rocks which have been intruded by granites. High strain zones developed between these granitic complexes, and these zones represent favourable structural sites for gold deposition. The Stevens Island Deformation Zone (S.I.D.Z.) represents one of the zones, as it is situated between the Snowshoe Bay Batholith and the Canoe Lake Stock. The parallel Duport Deformation Zone (D.D.Z.), which hosts the Duport Mine, is also a representation of one of these zones. The S.I.D.Z. occurs within the Stevens Island mafic intrusive complex, which is a synvolcanic sill comprised of a basal pyroxenite, a diorite, an anorthositic diorite and a quartz diorite. Gold mineralization within the S.I.D.Z. occurs in areas of shearing within the diorite, and within quartz veins with chlorite schist margins, and zones of silicification. This style of mineralization is similar to that observed at the Duport Mine, and it is considered to be contemporaneous with the mineralizing event at Duport (Assessment report 52E11SE0003).
Rock Type | Rank | Composition | Texture | Relationship | Quartz Diorite | 1 | Quartz Diorite | Contains |
---|---|---|---|---|
Vein | 2 | Quartz | Host |
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
---|---|---|---|---|---|---|---|
1 | Arsenopyrite | Economic | Ore | ||||
2 | Pyrite | Economic | Ore | ||||
3 | Chalcopyrite | Economic | Ore | ||||
4 | Molybdenite | Economic | Ore | ||||
5 | Pyrrhotite | Economic | Ore | ||||
6 | Gold | Economic | Ore |
May 15, 2020 (Therese Pettigrew) - Small quartz veins and narrow sheared zones on Stevens Island are known to carry a little gold in some cases. Diamond-drilling off the southwest end of island S 171 during the winter of 1936 is reported to have traced a gold-bearing vein for a length of about 200 feet under the lake (Thomson, 1936). DDH SL-90-4 encountered up to 7% MoS2 in quartz-carbonate veinlets, with molybdenite occurring as dime-sized crystals (Assessment report 52E11SE9087). DDH SL-89-02 reported abundant visible gold, with 7 specks at 170.5 and 190.42 m depth in a blue grey pyrite-chalcopyrite-arsenopyrite-quartz vein (Assessment report 52E11SE9123). DDH SL97-1 returned up to 0.343 oz/t Au over 2 feet. DDH SL97-2 returned up to 0.341 oz/ t Au over 2.5 feet (Assessment report 52E11SE0003). DDH SLW10-26 returned 11.72 g/t Au over 1.99 m and 7.88 g/t Au over 0.36 m (Assessment report 20000006050).
Part - Gold deposits on Shoal Lake (west)
Publication Number: ARV45-03.002 Scale: Date: 1997
Author: Thomson J.E.
Publisher Name: Ontario Dept. of Mines
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office