Ontario Geological Survey
Permanent Link to this Record:
MDI42D14NE00010
| Record Name(s) | Patmikko Occurrence - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1997-Feb-07 |
| Date Last Modified | 2022-May-06 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Gold, Silver
Township or Area: Lower Aguasabon Lake Area
Latitude: 48° 57' .23" Longitude: -87° 6' 18.95"
UTM Zone: 16 Easting: 492293 Northing: 5421910 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D14NE
Point Location Description: Trenches, stripped areas.
Location Method: Field Visit with GPS
Access Description: The occurrence is located approximately 22 km up the Kimberly-Clark road, 20 km north of Terrace Bay. Access may be gained via the Statesman Road extending off the Kimberly-Clark forest access road north of Terrace Bay towards the Aguasabon River. The occurrence was reached by a small logging road at approximately 22 km up the Kimberly-Clark road.
1984: The occurrence was discovered by T. Patterson and R. Mikkonen. Prospecting, stripping, trenching and sampling were conducted.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.8038 | 42D14NE8286 | 42D14NE8286 |
| 2.6971 | 42D15NW0043 | 42D15NW0043 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (B Nelson) - Carter (1982) shows the area as being underlain by metamosphosed mafic intrusive rocks along with mafic metavolcanic rocks and granitic intrusives present. A major northwest trending fault transects the area. A quartz stockwork is exposed in a creek bed and is up to 10 m to 15 m wide. Quartz veins are crosscut by jasper-rich veinlets and fractures suggesting a complex multi-deformational history. Quartz +/- calcite veins are present and contain up to 2% disseminated pyrite and minor chalcopyrite. A pink to reddish granite intrudes the mafic host rock. The stockwork is hosted by a medium grained, mafic, chloritic rock which contains epidote stringers. It was unclear whether the host rock was a metavolcanic rock or intrusive rock. In sections the host rocks have been highly silicified. The quartz stockwork zone appears to be hosted by a fault trending 310 degrees northwest and exposed for a distance of up to 450 m.
| Rock Type | Rank | Composition | Texture | Relationship | Gabbroid-Unsubdivided | 1 | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Host | ||
| Granite | 3 | Near | ||
| Vein | 4 | Host |
Dec 07, 2005 (B Nelson) - The granite is pink to reddish. The mafic rock is medium grained and chloritic. It is uncertain whether it is a metavolcanic or an intrusive.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Calcite | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 | Unknown | Stockwork | ||
| Calcite | Alteration | Hydrothermal | 2 | Unknown | Veins | ||
| Epidote | Alteration | Epidotization | 3 | Unknown | Disseminated |
Dec 07, 2005 (B Nelson) - In 1984, over 35 grab and chip samples were collected by or submitted to Resident Geologist's staff. The highest assays included 0.01 oz/ton Au, 0.12 oz/ton Ag and 995 ppm Cu.
Dec 07, 2005 (B Nelson) - In sections, the host rocks have been highly silicified.
Date: Feb 07, 1997
Geologist: B Nelson
Notes: Resident Geologist staff visited the occurrence July 6, 1984.
Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District
Publication Number: M2232 Scale: 1:253,440 Date: 1973
Author: Carter M.W., McIlwaine W.H., Wisbey P.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 141-142 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files, Thunder Bay office
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Map - Cairngorm Lake area, Thunder Bay District
Publication Number: M2112 Scale: 1:31,680 Date: 1997
Author: Walker J.W.R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Big Duck-Aguasabon lakes area, District of Thunder Bay, Ontario
Publication Number: ARM49K Scale: 1:31,680 Date: 1997
Author: Bartley M.W.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological series, Precambrian geology of the Terrace Bay area, northeast sheet, Thunder Bay District
Publication Number: P2557 Scale: 1:15,840 Date: 1982
Author: Carter M.W.
Publisher Name: Ontario Geological Survey
Location:
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