Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52N04SW00341

Record: MDI52N04SW00341

General

Mineral Record Identification
Record Name(s) Redruth No. 2 Vein - 1987
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1996-Dec-27
Date Last Modified 2023-Mar-24
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Fairlie

Latitude: 51° 1' 9.99"    Longitude: -93° 57' 22.11"

UTM Zone: 15    Easting: 432936.642   Northing: 5652422.052    UTM Datum: NAD83

Resident Geologist District: Red Lake

NTS Grid: 52N04SW

Point Location Description: N/A

Location Method: Data Compilation



Exploration History

Originally staked by A. Watt and G. Young; Redruth Gold Mines Ltd. was incorporated in 1945 to secure the property. 1945: Stripping and approximately eight trenches completed. 1946: One diamond drill hole completed.


Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Red Lake

Geological Age: Archean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Geology Comments

Dec 07, 2005 (K R Kettles) - Geological description: The prospect is underlain primarily by altered basaltic flows. Near the No. 2 vein, abundant pillow structures have been observed. They are locally up to 1 m in size and indicate a top direction to the northwest. In some areas, altered basalts are coarse grained. Small dikes of dioritic composition are present. Feldspar porphyry has been noted in the area, but is uncommon. Tuff and siliceous sediments are present between altered basalt flows. Sedimentary rock units are generally less than 5 m in thickness. They strike 090 deg. and dip 85 deg. S. Generally the rocks show little deformation but at a few localities small shears striking roughly N60 deg. W and dipping steeply south have been observed. Deposit description: A shear zone with a strike of approximately N 60 deg. W cuts the altered basaltic flows and iron formation. The shear is less than 2 m in width and is not well exposed. Given the location and strike of the shear, it is possible that it is a continuation of the No. 1 vein.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz Host
Ironstone-unsubdivided 2 Iron Formation Adjacent
Mafic pillowed flow 3 Altered Basalt Altered, Pillowed, Coarse Grained Adjacent
Feldspar Porphyry 4 Feldspar Porphyry Porphyritic Near
Diorite 5 Diorite Dikes Near
Chert 6 Silicieous Sediments Near

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2PyriteEconomicOre
3ChalcopyriteEconomicOre
4SphaleriteEconomicOre
5SilverEconomicOre
1QuartzEconomicGangue
CarbonateAlterationUnknown1WeakVeins

Mineralization Comments

Dec 07, 2005 (K R Kettles) - High gold values were reported from grab samples by Redruth in 1945, but no numbers were given. R. Riley grab sampled the area in 1970, and assays of up to 0.01 oz/ton (0.343 g/tonne) Au and 0.60 oz/ton (20.571 g/tonne)Ag were returned.



Alteration Comments

Dec 07, 2005 (K R Kettles) - A weak carbonate alteration occurs associated with the quartz veins.




Mineral Record Details

References

File - Resident Geologist's Files, Red Lake

Publication Number: RGF RL Date: 1945

Author: Storen, R.

Publisher Name:

Location: Red Lake RGP


Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2

Publication Number: OFR5558 Date: 1987

Author: Durocher M.E., Burchell P.S., Andrews A.J.

Publisher Name: Ontario Geological Survey

Location:


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