Ontario Geological Survey
Permanent Link to this Record:
MDI52N04SW00323
| Record Name(s) | Redruth No.1 Vein - 1945 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-11 |
| Date Last Modified | 2022-Jun-29 |
| Created By | |
| Revised By |
Primary Commodities: Silver, Gold
Township or Area: Fairlie
Latitude: 51° 1' 20.5" Longitude: -93° 58' 3.32"
UTM Zone: 15 Easting: 432138 Northing: 5652757 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04SW
Point Location Description: N/A
Location Method: Data Compilation
Originally staked by A. Watt and G. Young. 1945: Nine trenches completed. 1946: Twenty four diamond drill holes (x-ray holes included) completed.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Red Lake
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Vein | 2 | Quartz-Carbonate Stringers | Host | |
| Mafic lava flow-unsubdivided | 3 | Basalt | Pillowed, Altered, Coarse Grained | Adjacent |
| Feldspar Porphyry | 4 | Feldspar Porphyry | Porphyritic | Near |
Nov 07, 2014 (K R Kettles) - The prospect is underlain primarily by altered basalt. Near the No, 1 vein, abundant pillow structures have been observed. These pillows are locally up to 1 m in size, and indicate a top direction to the northwest. In some areas, the altered basalt flows are coarser grained. Near the No. 1 vein, feldspar porphyry dikes have been observed. Tuff and siliceous sediments are present in the stratigraphic succession. These units are thin (less than 5 m ) strike around 090 degrees and dip to the south. Small shears striking at roughly N 60 deg. W, and dipping steeply to the south are present. A shear zone with a strike of N 60 deg. W and a dip of 70 deg. to the south intersects coarse basalt. The shear zone has been traced by trenching and diamond drilling for over 200 m. At the west end, the sheaing is very evident and contains a 8 cm wide quartz vein with smaller veinlets. Inclusions of the wall rock have been noted in the quartz vein. Pyrite cubes and visible gold associated with the inclusions occur. Arsenopyrite with associated gold has been noted. The zone varies in width from 0.3 m to 1.5 m with an average thickness of 0.5 m.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Arsenopyrite | Economic | Ore | ||||
| 2 | Gold | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Silver | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 | Weak | Veins | ||
| Carbonate | Alteration | Carbonatization | 2 | Weak | Veins |
Nov 07, 2014 (K R Kettles) - On the basis of diamond drilling and trenching the vein has been traced along the strike for a distance of 300 m and has an average width of 53 cm. A 30 m section of the vein has an average grade of 0.38 oz/t(13.028 g/tonne) Au, (higher assays cut to 1.0 oz/t,(34.285 g/tonne)). A grab sample by R. Ripley in 1970 returned an assay of 7.64 oz /t (261.937g/tonne) Ag and 0.07 oz/t (2.400 g/tonne) Au. A shear zone with a strike of N 60 deg. W and a dip of 70 deg. to the south intersects coarse basalt. The shear zone has been traced by trenching and diamond drilling for over 200 m. At the west end, the sheaing is very evident and contains a 8 cm wide quartz vein with smaller veinlets. Inclusions of the wall rock have been noted in the quartz vein. Pyrite cubes and visible gold associated with the inclusions occur. Arsenopyrite with associated gold has been noted. The zone varies in width from 0.3 m to 1.5 m with an average thickness of 0.5 m.
Nov 07, 2014 (K R Kettles) - A weak carbonate alteration is associated with the quartz veins. Silicification appears locally in the basalts.
| Rank | Classification |
|---|---|
| 1 | Vein |
File - Resident Geologist files AF RL 1945 Fairlie #3
Publication Number: AF RL 1945 Date: 1945
Author: Storen, R.
Publisher Name:
Location: Red Lake RGP
File - Resident Geologist files AF RL 1986 Fairlie #78
Publication Number: AF RL 1986 Date: 1986
Author:
Publisher Name:
Location: Red Lake RGP
Map - Geological series, Fairlie Township, District of Kenora (Patricia Portion)
Publication Number: P1053 Scale: 1:12,000 Date: 1975
Author: Riley R.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 457-458 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
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