Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52E11SE00022

Record: MDI52E11SE00022

General

Mineral Record Identification
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

Commodities

Primary Commodities: Gold, Molybdenum



Location

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



Exploration History

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.


Assessment Work on File

Assessment Work on File
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

Geology

Province: Superior

Subprovince: Wabigoon

Geological Age: Archean  



Geology Comments

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).




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Quartz Diorite 1 Quartz Diorite Contains
Vein 2 Quartz Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ArsenopyriteEconomicOre
2PyriteEconomicOre
3ChalcopyriteEconomicOre
4MolybdeniteEconomicOre
5PyrrhotiteEconomicOre
6GoldEconomicOre

Mineralization Comments

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).



Mineral Record Details

References

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:


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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office