Ontario Geological Survey
Permanent Link to this Record:
MDI42D15SW00024
| Record Name(s) | Jackfish Lake - 1967, Santoy Mountain Occurrence - 1983 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Apr-02 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Silver
Secondary Commodities: Copper, Nickel
Township or Area: Syine
Latitude: 48° 49' 4.2" Longitude: -86° 55' 46.92"
UTM Zone: 16 Easting: 505160.67 Northing: 5407207.71 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15SW
Point Location Description: Precise
Location Method: Conversion from MDI
1967: Walker mentions the showing in his report “Geology of the Jackfish-Middleton Area” (R050). 1983: Highmark Resources conducted geological mapping soil and rock sampling, and mag and VLF-EM surveys. 1993: B. Fowler acquired the property and conducted prospecting and sampling. 1995: R. Wahl carried out prospecting and sampling. 2005: Phoenix Matchewan Mines Inc. carried out a mag survey. 2009: B. Fowler carried out prospecting, sampling, and a magnetic and VLF-EM survey. 2015: B. Fowler and C. Carl conducted prospecting and rock sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.56642 | 20000014112 | 20000014112 |
| 2.41559 | 20000003988 | 20000003988 |
| 2.8192 | 42D15SW0113 | 42D15SW0113 |
| 2.33428 | 20000001721 | 20000001721 |
| 2.41629 | 20000004194 | 20000004194 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 |
|---|---|---|---|---|
| Ironstone-unsubdivided | 2 | |||
| Terrigenous-Clastic-Unsubdivided | 3 |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Arsenopyrite | Economic | Ore |
May 04, 2018 (Therese Pettigrew) - Chalcopyrite and nickeliferous pyrrhotite are found in sheared fragmental volcanic rocks and iron formation about 1.2 km from the SE corner of Jackfish Lake. A gossan zone of undetermined dimenstions strikes N70E along a steep brushy slope (Walker, 1967). A soil sample collected by Highmark Resources in 1983 returned an assay of 0.67 gpt Au, 6.2 gpt Ag, and 163 ppm Mo. Grab samples collected in 2015 were described as sediments that were strongly silica flooded and cherty, with pyrite, arsenopyrite, and chalcopyrite, with sulphides generally occurring in stringers and clusters and often fracture filling. Sample SM29 assayed 979 ppm Cu. SM30 assayed 220 ppm Ni (AFRI 2.56642). Sample 93-43 collected by B. Fowler in 1993 returned negligible values of gold, copper and zinc but gave 68.6 gpt Ag (AFRI 20000004194).
Map - Jackfish-Middleton area, Thunder Bay District
Publication Number: M2107 Scale: Date: 1967
Author: Walker J.W.R.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Jackfish-Middleton area, District of Thunder Bay
Publication Number: R050 Scale: Date: 1997
Author: Walker J.W.R.
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