Ontario Geological Survey
Permanent Link to this Record:
MDI52B13NE00013
| Record Name(s) | Nic-Cop - 1955, Fin-Lan Copper - 1969, Cranston Copper - 1954 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1979-Jun-06 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Secondary Commodities: Nickel
Township or Area: Finlayson Lake Area
Latitude: 48° 53' 40.17" Longitude: -91° 37' 5.4"
UTM Zone: 15 Easting: 601282.8 Northing: 5416647.58 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52B13NE
Point Location Description: Precise
Location Method: Conversion from MDI
1954: Staked by W. Cranston and A. Lantz. 1955: optioned by Nic-Cop Mines who carried out trenching and 3 x-ray DDH totalling 45.7 m. 1964: K. Kuhner and W. Morehouse staked the property and conducted geological mapping, trenching, and some backpack drilling. 1965: Bankfield Consolidated Mines Ltd. optioned the property and carried out trenching, mapping, and a magnetometer survey. 1966: Cyprus Corporation Ltd. optioned the property and carried out mag and EM surveys, and drilled 12 DDH totalling 1659 m. 1968: Fin-Lan Copper Mines Ltd. acquired the property. 1969: Kerr Addison Mines Ltd. optioned the property who did geophysics (of unknown variety) and some trenching. 1983: F. Dennhardt and G. A. Mealy staked the property and conducted sampling. 1991: Inco Exploration staked the property and carried out geological mapping, horizontal loop EM and magnetometer surveys. 2002: Atikokan Resources Inc. carried out EM and magnetometric surveys
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.2041 | 52B13NE0015 | 52B13NE0015 |
| 2.16213 | 52B14NW0019 | 52B14NW0019 |
| 2.25203 | 52B13NE2003 | 52B13NE2003 |
Province: Superior
Subprovince: Wabigoon
Belt: Finlayson Lake
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 |
|---|---|---|---|---|
| Schist-Unsubdivided | 2 | |||
| Ironstone-unsubdivided | 3 |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue |
Apr 24, 2018 (Therese Pettigrew) - The main sulphide showing trends approximately N30E and dips vertically. It has been traced for a total distance of about 180 m by geological mapping on the surface; magnetometer and electromagnetic surveys indicate a total length of about 580 m (the northern extension is underwater). This tabular body is not straight, but is irregular in shape. The surrounding host rocks are mainly mafic to intermediate pillowed lavas and tuffs with minor amounts of intercalated metasediments. In immediate contact with the massive pyrrhotite are thin bands of fine-grained quartz-sericite-carbonate schist (metasediment?). Development work has indicated erratic sulphide mineralization along strike and in thickness. Widths of up to 4.9 m of massive sulphides were encountered (Fenwick, 1976). About midway along strike, the sulphide deposit cuts through a 9.1 m wide band of iron formation, and here the chalcopyrite content is highest. Mineralization consists chiefly of massive to disseminated pyrrhotite, nodular pyrite and minor chalcopyrite (Pye, 1965). A 2.4 m chip sample taken by E.G. Pye (1965) was found by the Mineral Research Branch, Ontario Division of Mines to contain 0.42 percent copper and a trace of nickel. In 1966, Trench 7 assayed 0.53% Cu and 0.02% Ni (AFRI 52B13NE0015). Sample AFC-10-84 collected by A. MacTavish of the RGP assayed 1.18% Cu (RGP mineral deposit files, Thunder Bay office).
Map - Finlayson Lake, Rainy River District
Publication Number: M2297 Scale: 1:31,680 Date: 1976
Author: Fenwick K.G.
Publisher Name: Ontario Division of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits in Ontario (revised to February, 1957)
Publication Number: MDC002 Page: 12 Date: 1957
Author: Thomson J.E., Ferguson S.A., Johnston W.G.Q., Pye E.G., Savage W.S., Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Finlayson Lake area, District of Rainy River
Publication Number: R145 Page: 65-71 Date: 1976
Author: Fenwick K.G.
Publisher Name: Ontario Division of Mines
Location:
Article - Resident Geologist's Office, Port Arthur
Publication Number: PR1965-03.027 Page: 64-65 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office