Ontario Geological Survey
Permanent Link to this Record:
MDI52N04SW00017
Record Name(s) | Wilmar Mine - 1983, Rahill (Shaft) - 1983, Wilmar Mines- Granodiorite Zone - 1987, Wilanour Resources - 1987, Wilmar Mines - Diorite Dike Zones - 1987, Wilmar Mines - East Breccia Zone - 1987, Wilmar Mines- Carbonate Zones - 1987 |
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Related Record Type | Compound |
Related Record(s) | |
Record Status | Past Producing Mine With Reserves or Resources |
Date Created | 1983-Sep-14 |
Date Last Modified | 2023-Feb-06 |
Created By | |
Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver
Township or Area: Dome
Latitude: 51° 3' 47.96" Longitude: -93° 48' 5.37"
UTM Zone: 15 Easting: 443836.638 Northing: 5657172.003 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N04SW
Point Location Description: Shaft on RL 6687 on Map 2074
Location Method: Data Compilation
Access Description: A drift was driven from the 1300 foot level of Cochenour Willans Mine to the Wilmar deposit, a winze was sunk from 1300 level to 2050 level. Actual minning of deposit was done from these workings not the original Rahill Shaft.
1927-28: Martin McNeely Mines incorporated, performs stripping, trenching and drilling.1934-36: Performs stripping, trenching, and drilling. 1944-46: Completed geological mapping, magnetometer surveys and drilling (totalling 10794.26 m by end of 1946). 1958: Wilmar Mines Ltd. is incorporated to take over property, jointly owned by McNeely Mines and Cochenour-Willans Gold Mines. 1960-71: Underground development started from the Cochenour mine 396.5 m level. Drift (totalling 1307 m) driven to Wilmar property. 48000 m of underground drilling completed by 1971. PRODUCTION/ DEVELOPMENT 1960-75: 60,810 OZ AU, 62,752 OZ AG FROM 227,813 T BY DRIVE AT 1300FT , INT.SHAFT 2050FT, ZONES ACCESSED BY WORKINGS INCLUDE: GRANODIORITE (WEST), BRECCIA,CARBONATE (RAHILL) AND DIORITE DIKE (EAST), RESERVES 1973: EAST AREA (B,C,DD) 1,253,200 T @ 0.23 OPTWEST (GDIOR) 5,700,000 T @0.1-0.15 OPT. “Inco: 21,616 feet of surface drilling in 1988. Following underground development and diamond drilling in 1989 and 1990, an 11,923 ton bulk sample was extracted. In 1991, Strathcona Mineral Services estimated a probable resource of 221,500 tons averaging 0.30 oz Au per ton between the 1800 and 2350 levels, and potential for an additional 260,000 tons at the same grade between the 2350 and 2600 levels. A 1991 pre-feasibility study by Inco indicated that the resources on the Cochenour property were not economic. In February 1998, Goldcorp completed its acquisition of all of the outstanding shares of Wilanour Resources Limited. Surface exploration work began again in January 2007 by Premier Gold Mines on the newly expanded joint venture property. In total 19 holes and 24 wedges were drilled targeting the both the West Granodiorite Zone and East Breccia Zone at depth beneath the old workings and laterally east and west of the zone. This drilling totaled 21,528.5 m and represented the first deep drilling completed under the Wilmar Mine. 2009 Gold Corp and Premier conducted a 17 DDH program completing 6807 m.” (taken form assessment report 2.44933)
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
---|---|---|
2.44933 | 20000013662 | 20000013662 |
23 | 52N04SW0102 | 52N04SW0102 |
24 | 52N04SW0099 | 52N04SW0099 |
63.3180 | 52N04SW0074 | 52N04SW0074 |
63.3809 | 52N04SW0057 | 52N04SW0057 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Red Lake
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (K R Kettles) - The northern half of the Wilmar property is underlain by altered mafic flows, whereas the southern half is underlain by felsic metavolcanic flows and flow breccias. The units strike about N65 degs E and dip steeply south. On the basis of pillow packing stratigraphic tops are to the south. The Wilmar mineralized zones are found at or close to the contact between a silicified, felsic volcanic breccia and talc-chlorite-carbonate schist. The contact is thought to be a major fault zone. Rolls in the contact between the two rock sequences have been found to be an important guide to ore. Diorite, lamprophyre and diabase dikes/sills are present in all parts of the sequence.
Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Basalt | Contains |
---|---|---|---|---|
Ironstone-unsubdivided | 2 | Iron Formation | Near | |
Diorite | 3 | Diorite | Contains | |
Breccia-unsubdivided | 4 | Volcanic | Fault Breccia | Contains |
Vein | 5 | Quartz-Tourmaline/Carbonate | Sulphidized | Host |
Granodiorite | 6 | Adjacent | ||
Vein | 7 | Dolomite | Veinlets- Breccia Zone | Host |
Ultramafic Schist | 8 | Talc-Carbonate | Carbonate Zone | Host |
Dec 07, 2005 (K R Kettles) - In the granodiorite zone a granodiorite body over 180 m long in strike contains mineralized veins. The body is 10 to 36 m wide. It is proably a dike or sill.
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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1 | Pyrite | Economic | Ore | ||||
2 | Chalcopyrite | Economic | Ore | ||||
3 | Pyrrhotite | Economic | Ore | ||||
4 | Scheelite | Economic | Ore | ||||
5 | Calaverite | Economic | Ore | ||||
6 | Galena | Economic | Ore | ||||
7 | Gersdorffite | Economic | Ore | ||||
8 | Hessite | Economic | Ore | ||||
9 | Petzite | Economic | Ore | ||||
10 | Rutile | Economic | Ore | ||||
11 | Silver | Economic | Ore | ||||
12 | Gold | Economic | Ore | ||||
13 | Argentite | Economic | Ore | ||||
1 | Quartz | Economic | Gangue | ||||
2 | Tourmaline | Economic | Gangue | ||||
3 | Carbonate | Economic | Gangue | ||||
Sericite | Alteration | Sericitization | 1 | ||||
Carbonate | Alteration | Carbonatization | 2 | ||||
Silica | Alteration | Silicification | 3 |
Mar 15, 2012 (K R Kettles) - GRANODIORITE ZONE:The granodiorite body is 180 m long and varies from 10 to 36 m wide. Gold mineralization is associated with multi-directional, quartz-tourmaline veins of limited extent. The dips of the veins is variable, with horizontal and 35 to 60 degs S dipping veins dominant. Mineralization consists of py and po with trace cp and tellurides. Published grades of this zone vary from 0.10 to 0.15 opt Au. From surface to the 625.25 m level there is an estimated 5,700,000 tons of ore. DIORITE DIKE ZONE:The mineralized zones occur within diorite dikes in the volcanic breccia zone. The mineralization is associated with quartz-carbonate veinlets cutting the dikes in a multitude of directions. Visible gold is present. Possible ore reserves are estimated at 140,000 tons grading 0.21 opt Au. BRECCIA ZONE:Mineralized zones are located at the talc-chlorite-carbonate schist and brecciated silicified volcanic contact.Mineralization occurs in minute dolomitic stringers which lace the siliceous breccia and schist. The intensity of mineralization and grade increases in the vicinity of the rolls in the contact. The average Au to Ag ratio is 1:10. The breccia pipe zones are zones of intense shearing and brecciation where the rocks are silicified and sericitized. They may represent fault displacement of the breccia-schist contact zones, and have Au:Ag ratios of 1:1. Proven ore from this zone is 31500 tons of 0.32 opt Au. CARBONATE ZONE:The carbonate zones are located west of the volcanic breccia zone. The mineralized zones contain primarily tellurides with some visible gold. The average Au to Ag ratio is 1:7. The dimensions and shape of the zones are extremely variable. Probable ore reserves from this zone is 25000 tons of 0.17 opt Au. 2009: Drilling in the area, 8 drill holes, assays returning ranging up to 9.13 g/t Au over 4m, and 10.20 g/t over 0.5 m.
Dec 07, 2005 (K R Kettles) - The granodiorite adjacent to the auriferous quartz tourmaline veins has been bleached and sericitized. The diorite dikes and other country rocks have been silicified and carbonatized.
Rank | Characteristic |
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3 | Breccia |
2 | Fault |
1 | Vein |
Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
---|---|---|---|---|---|---|---|---|---|
Unknown |
Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
---|---|---|---|---|---|---|---|---|---|
Unknown |
Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
---|---|---|---|---|---|---|---|---|---|
Irregular |
Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
---|---|---|---|---|---|---|---|---|---|
Unknown | 180 | 20 | 625 | 65 | 88 |
Date: Jan 30, 1997
Geologist: K R Kettles
Notes: N/A
Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
---|---|---|---|---|---|---|
Granodiorite Zone | 1987 | Possible | 5170950 | OFR 5558 P.382 | Estimated from surface to 625.25 m level. Grade: 3.43 to 5.14 g/t Au (5 700 000 tons of 0.10 to 0.15 opt Au) | Gold 4.46 g/t |
Diorite Dyke Zone | 1987 | Possible | 127000 | OFR 5558 P. 395 (Hutton 1973) | Grade: 7.2 g/t Au (140 000 tons at 0.21 opt Au) | Gold 7.2 g/t |
East Breccia Zone | 1973 | Probable | 45800 | OFR 5558, P 399 (Hutton 1973) | Grade: 8.57 g/t Au (50 500 tons at 0.25 opt Au) | Gold 8.57 g/t |
East Breccia Zone | 1973 | Proven | 28575 | OFR 5558, P. 399 (Hutton 1973) | Grade: 11.0 g/t Au (31 500 tons at 0.32 g/t Au) | Gold 10.97 g/t |
Carbonate Zones | 1973 | Probable | 22680 | OFR 5558 p. 401 | No proven ore for this zone; Grade: 5.83 g/t Au (25 000 ton of 0.17 opt Au) | Gold 5.8 g/t |
Carbonate Zones | 1973 | Possible | 6800 | OFR 5558 P.401 | No proven ore; Grade: 5.14 g/t Au (7500 tons of 0.15 opt Au) | Gold 5.14 g/t |
East Breccia Zone | 1973 | Possible | 1612070 | OFR 5558 P. 399 | Grade: 8.23 g/t Au (1 777 000 tons at 0.24 opt Au) | Gold 8.23 g/t |
Year | Tonnes | Commodities | Reference | Comment |
---|---|---|---|---|
1967 | 7824 |
Silver 127242 Gold 66871 |
OFR 5558 P.395 | Mine ceased production in 1972, produced a total of 52,204 oz. of gold from the Carbonate and East Breccia zones. Note that the production tons quoted are for 1967 only, while the oz produced is a total to the end of 1972. Figures are difficult to trace as all milling was completed in Cochenour - Willans mill |
File - Red Lake Resident Geologists Files 1945 Dome #22
Publication Number: AF RL 1945 Date: 1945
Author:
Publisher Name:
Location: Red Lake RGP
Map - Dome Township, Kenora District
Publication Number: M2074 Scale: 1:12,000 Date: 1997
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines
Location:
File - Red Lake Resident Geologists Files 1959 Dome #41
Publication Number: AF RL 1959 Date: 1959
Author:
Publisher Name:
Location: Red Lake RGP
File - Red Lake Resident Geologists Files 1980 Dome #77
Publication Number: AF RL 1980 Date: 1980
Author:
Publisher Name:
Location: Red Lake RGP
File - Red Lake Resident Geologists Files 1981 Dome #105
Publication Number: AF RL 1981 Date: 1981
Author:
Publisher Name:
Location: Red Lake RGP
File - Red Lake Resident Geologists Files 1984-85 Dome #114
Publication Number: AF RL 1984 Date: 1984
Author:
Publisher Name:
Location: Red Lake RGP
File - Red Lake Resident Geologists Files 1985 Dome #135
Publication Number: AF RL 1985 Date: 1985
Author:
Publisher Name:
Location: Red Lake RGP
File - A Study of Exploration Possibilities and the Potential Economic Objectives; Assessment file 52N04SW0077, AFRO 63.3179
Publication Number: AFRI52N04SW0077 Date: 1973
Author: Hutton, D.A.
Publisher Name: Wilmar Mines Ltd.
Location: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/afri/data/imaging/52N04SW0077/52N04SW0077.Pdf
Part - Gold deposits in the vicinity of Red Lake
Publication Number: ARV44-06.001 Page: 24-25 Date: 1997
Author: Hurst M.E.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology and mineral deposits of the Red Lake area
Publication Number: ARV49-02 Page: 182-184 Date: 1998
Author: Horwood H.C.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Dome Township, District of Kenora
Publication Number: R045 Page: 86-88 Date: 1997
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 215-216 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Gold occurrences, prospects, and deposits of the Red Lake area, volumes 1 and 2
Publication Number: OFR5558 Page: 381,394,398-401 Date: 1987
Author: Durocher M.E., Burchell P.S., Andrews A.J.
Publisher Name: Ontario Geological Survey
Location:
File - 1973 Resident Geologist's Files, Red Lake
Publication Number: AF RL 1973 Date: 1973
Author: Hutton, D.A.
Publisher Name:
Location: Red Lake RGP
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