Ontario Geological Survey
Permanent Link to this Record:
MDI52F16NW00018
Record Name(s) | Jacobus Creek - 1982 |
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Related Record Type | Simple |
Related Record(s) | |
Record Status | Occurrence |
Date Created | 1995-May-30 |
Date Last Modified | 2022-Mar-02 |
Created By | |
Revised By |
Primary Commodities: Gold
Township or Area: Pickerel
Latitude: 49° 55' 30.05" Longitude: -92° 16' 21.54"
UTM Zone: 15 Easting: 552207.77 Northing: 5530547.06 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F16NW
Point Location Description: DDH T-10 from map in Assessment report 52F16NW0024
Location Method: Based on Assessment
1981: Tarbush Lode Mining Ltd. conducted a magnetometer survey. 1982: Tarbush carried out mapping and drilled 4 DDH totalling 282 m. 1985: Tarbush drilled 1 DDH totalling 143 m. 2011: Tamaka Gold Corp. carried out mapping and sampling.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
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63.4689 | 52F16NW0024 | 52F16NW0024 |
2.8713 | 52F16NW0019 | 52F16NW0019 |
52F16NE BL-0041 | 52F16NE8218 | 52F16NE8218 |
52F16NW CQ-0051 | 20000005234 | 20000005234 |
2.51254 | 20000008131 | 20000008131 |
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Host |
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Granodiorite | 2 | Granodiorite |
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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1 | Pyrite | Economic | Ore |
Jun 30, 2020 (Therese Pettigrew) - DDH T-10 returned 0.025 oz/t Au over 1 foot (0.86 g/t Au over 0.3 m) and 0.05 oz/t Au over 3 feet (1.71 g/t Au over 0.91 m) from siliceous basalt with 15% pyrite and 10-15% quartz (Assessment report 52F16NW0024). The Jacobus Creek Showing area is characterized by large volumes of felsic intrusives of estimated granodioritic composition; both equant and porphyritic quartz or quartz-feldspar porphyry sills were observed. In many locations, the felsic intrusives are altered and contain moderate pyrite. Alteration mineralogy is variable but most commonly quartz/sericite/ankerite, with occasional albite and chlorite alteration. Pyrite is commonly euhedral and disseminated in altered rocks, with pyrite contents of individual outcrops ranging from 1% to 5%. Quartz-ankerite veining was also observed in several outcrops. Eight grab samples were collected during the 2011 program, and the highest assay was 0.025 g/t gold from I589749 (Assessment report 20000008131).
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For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office