Ontario Geological Survey
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MDI42F05NE00001
| Record Name(s) | Beavercross Lake (North) Copper-Silver Occurrence - 1955, Kenogamisis (Smith) Option - 9999 |
|---|---|
| Related Record Type | |
| Record Status | Occurrence |
| Date Created | 1996-Dec-30 |
| Date Last Modified | 2022-Jan-05 |
| Created By | D McKay |
| Revised By | N Bennett |
Primary Commodities: Copper, Silver
Township or Area: Thomas Lake Area
Latitude: 49° 23' 43" Longitude: -85° 44' 56.57"
UTM Zone: 16 Easting: 590770.632 Northing: 5472150.878 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42F05NE
Point Location Description: Small stripped outcrop
Location Method: Field Visit
Access Description: The Beavercross Lake (North) copper-silver occurrence is located approximately 30.5 km north-northeast of Manitouwadge and 150 m west-northwest of the northwestern arm of Beavercross Lake. The occurrence is accessible via motor vehicle followed by travel on foot and then by canoe. Alternatively, the occurrence may be accessed via air transport from Manitouwadge to Beavercross Lake followed by travel on foot. From Manitouwadge, proceed as follows: travel west then north-northeast along the Caramat Industrial Road for approximately 43.4 km to the Sonley logging road. Proceed east along the Sonley logging road for approximately 7.25 km to an unnamed, secondary logging road. Proceed northeast along this unnamed road for approximately 1.9 km to a small, deteriorated log bridge which crosses a shallow creek. Proceed across the bridge and continue travelling northeast for approximately 100 m to a poorly marked trail located on the south side of the road. Proceed east along this trail through swampy brush for approximately 100 m to a creek which flows into the southwest arm of Beavercross Lake. Proceed, via canoe, for approximately 3.2 km to the tip of the northwest arm of Beavercross Lake. Proceed, on foot, northwest through swampy brush for approximately 75 m to a low (2 to 5 m high), northwest-trending scarp. Copper-bearing quartz-carbonate veins are exposed intermittently along the edge of this scarp.
1955: staked by J. Gowan. 1964: Staked W. Smith transferred to Mining Corporation of Canada Ltd. 1965: Mining Corporation of Canada Ltd. line cutting, trenching, stripping, mapping, ground geophysics (MAG, VLEM) 1 DDH. 1967-1982: No work reported. 1978-1979: Reional lake sediment and water geochemical survey by GSC and MNT. 1989: Mapped by H. Williams and F. Breaks for OGS. 1991-1992: Till sampling survey by I.M. Kettles for GSC (Geological Survey of Canada). 1994: Not staked in 1994 (time of OGS report).
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Metamorphism Grade: Amphibolite
| Rock Type | Rank | Composition | Texture | Relationship | Diabase | 1 | Diabase, 10% Plagioclase Up To 8mm. | Massive To Porphyritic |
|---|---|---|---|---|
| Paragneiss | 2 | Garnet, Biotite, Quartz, Feldspar | Coarse Grained | Host |
| Diatexite Migmatite | 2 | Garnet, Biotite, Quartz, Feldspar | Coarse Grained | Contains |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Carbonate | Economic | Gangue |
Apr 26, 2011 (N Bennett) - The occurrence is located along the southern margin of the northwest trending diabase dike which occupies the inferred oblique dextral fault. The mineralization is on the contact with the surrounding paragneiss. Another occurrence (Beavercross Lake South) is located 2.9km to the southeast and is located on the northern margin of the diabase dike. The dike has an exposed width of 8m and can be traced for 200m along strike. A chip sample taken across the width of 0.61m by Mining Corporation of Canada Ltd returned assay values of 5.61% Cu, 1.05 Ounces Ag per ton, 0.005 ounce Au per ton, trace Ni, and nil Pb and Zn.
| Rank | Classification |
|---|---|
| 1 | Hydrothermal |
| 1 | Igneous Contact |
| Rank | Characteristic |
|---|---|
| 1 | Breccia |
| 1 | Sheared |
Mono - Mineral Occurrences in the Manitouwadge Area, Volumes 1, 2 and 3
Publication Number: OFR5906 Scale: Date: 1994
Author: McKay D.B.
Publisher Name: Ontario Geological Survey
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