Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52J02SW00005

Record: MDI52J02SW00005

General

Mineral Record Identification
Record Name(s) Lms - 1971, Larchmont Mines Ltd. - 1971, Anderson Claims - 1947
Related Record Type Simple
Record Status Occurrence
Date Created 1991-Jan-20
Date Last Modified 2021-Dec-14
Created By Q Unknown
Revised By Therese Pettigrew

Commodities

Primary Commodities: Gold



Location

Township or Area: Fourbay Lake Area

Latitude: 50° 0' 50.35"    Longitude: -90° 47' 25.99"

UTM Zone: 15    Easting: 658291.82   Northing: 5542524.75    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52J02SW

Point Location Description: Diamond drill holes

Location Method: Conversion from MDI

Access Description: The showing is accessible from the Six Mile Lake road which passes within a kilometer of the site.



Exploration History

1936: Hudson Bay Mining and Smelting optioned the Anderson Property near King Bay in the spring of 1936. Coniagas Mines were reported to have drilled several holes on the property in 1935 (The Daily Times-Journal, Port Arthur, May 16 1936; p.14).1939: Sylvanite Gold Mines Ltd. examined the property in the summer of 1939. 1947: A 46 m long diamond drill hole A1N was completed for the Anderson Group. 1971: Larchmont Mines Ltd. carried out an airborne magnetic and electromagnetic survey over a group of 50 unpatented claims which included the Anderson Group.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
52J02SW0025A1 52J02SW9145 52J02SW9145
52J02SW-0069 52J02SW0060 52J02SW0060
52J02SW-0077-C1 52J02SW9146 52J02SW9146

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Sturgeon Lake

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz Host
Mafic lava flow-unsubdivided 2 Basalt Sheared Host
Mafic lava flow-unsubdivided 3 Host
Diorite 4 Diorite Near
Quartz Porphyry 5 Quartz Near
Feldspar Porphyry 6 Feldspar Near

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2PyriteEconomicOre
3PyrrhotiteEconomicOre
CarbonateAlterationCarbonatization1UnknownDisseminated
QuartzAlterationSilicification2UnknownDisseminated

Mineralization Comments

Mar 30, 2020 (R Tuomi) - 1939: Surface chip sample assayed up to 0.88 ounce gold per ton over 0.75 ft from quartz veins. In 1939, Sylvanite Gold Mines noted the presence blue quartz float,well mineralized and carrying visible gold on occasion. They noted also that the float had not been transported far. Several grab samples assayed from 0.1 to 0.88 ounce gold per ton over 0.21 to 0.61 m in width. 1947: A 46 m long diamond drill hole A1N was completed for the Anderson Group. The hole was collared in sheared greenstone mafic metavolcanics) with diorite and feldspar porphyry intrusives. From the log, the diorite may be a coarse feldspar porphyry. Down hole, at the lower contact of the diorite,the greenstone was sheared and mineralized by pyrrhotite and pyrite. Samples taken over a 3.9m interval gave from nil to 0.02 ounce gold per ton. The best intersection was 0.02 ounce gold per ton over 1 m.



Mineral Record Details

References

Map - Squaw Lake, Thunder Bay District

Publication Number: M2420 Scale: 1:31,680    Date: 1980

Author: Trowell N.F.

Publisher Name: Ontario Geological Survey


MonoMap - Geology of the Squaw Lake-Sturgeon Lake area, District of Thunder Bay

Publication Number: R227 Scale:     Date: 1983

Author: Trowell N.F.

Publisher Name: Ontario Geological Survey


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