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Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000002414| Deposit Name(s) | Bancroft Lake South - 1996 |
|---|---|
| Deposit Status | occurrence |
| Date Created | 2020-Jun-15 |
| Date Last Modified | 2020-Jun-15 |
| Created By | T Pettigrew |
| Revised By | T Pettigrew |
Primary Commodities: gold
Township or Area: Matapesatakun Bay Area
Latitude: 51° 14' 47.84" Longitude: -90° 33' 19.52"
UTM Zone: 15 Easting: 670613 Northing: 5680090 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O02NE
Point Location Description: DDH H-96-2 from Assessment report 52O02NE0011
Location Method: based on assessment
1953-54: Hasaga Gold Mines Ltd. carried out trenching, line cutting, and drilled 88 x-ray and EX holes totaling approximately 6401 m. 1960: the Koval claims were surveyed and patented, then acquired by Little Long Lac Gold Mines. 1974-75: Little Long Lac Gold Mines carried out linecutting, mapping, IP and magnetometer surveys, and drilled 24 DDH totaling 5156.9 m. 1986-88: Moss Resources carried out mapping, VLF-EM, magnetometer, and IP surveys, and drilled 24 DDH totaling 5156.9 m, including 1 DDH totaling 153.9 m on this occurrence. 1996: Moss Resources drilled 8 DDH totaling 808.3 m including 3 DDH totaling 303.9 m on this occurrence. 2017: Tri Origin Exploration Ltd. carried out trenching and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| W9660-00050 | 52O02NE0011 | Open |
| 52O02NE-2 | 20000006238 | Open |
| 52O07SE-11 | 52O07SE0020 | Open Open |
| 2.58165 | 20000015477 | Open |
| 52O02NE-4 | 52O07SE0023 | Open |
| 52O02NE-3 | 52O07SE0021 | Open Open |
| 52O07SE9624 | 20000005371 | Open |
Province: Superior
Subprovince: Uchi
Belt: Meen-dempster
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| schist | 1 | host | ||
| intermediate metavolcanics | 2 | host | ||
| vein | 3 | quartz | host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | gold | economic | ore | ||||
| 2 | arsenopyrite | economic | ore | ||||
| 3 | pyrite | economic | ore | ||||
| 4 | pyrrhotite | economic | ore | ||||
| 5 | chalcopyrite | economic | ore | ||||
| 1 | garnet | economic | gangue |
06/15/2020 (T Pettigrew) - Drillholes H-96-1, H-96-2, H-96-3, H-96-5 and H-96-6 intersected gold mineralization within the Central Intermediate-Mafic Volcanic (CIMV) unit. The host rock is a brownish-grey, strongly foliated calcareous feldspar-biotite-quartz schist distinctively streaked/banded by anastamosing brownish biotite-rich seams and light whitish-grey calcite-rich lenses/bands which may be highly stretched lapilli fragments. DDH H-96-2 returned 0.089 oz/t Au over 11 feet (3.05 g/t Au over 3.35 m), including 0.26 oz/t Au over 3 feet (8.91 g/t Au over 0.91 m). DDH K-87-13 returned up to 0.614 oz/t Au over 5.3 feet (21.05 g/t Au over 1.62 m), 0.248 oz/t Au over 2.0 feet (8.5 g/t Au over 0.61 m), and 0.222 oz/t Au over 3.2 feet (7.61 g/t Au over 0.97 m) from an intermediate metavolcanics with visible gold, 2-5% sulphides (arsenopyrite, pyrite +/- pyrrhotite and rare chalcopyrite) in very fine-grained bands/lenses and disseminated, as well as in aggregates associated with quartz veinlets (Assessment report 52O02NE0011).
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For detailed information regarding this mineral deposit please contact the Thunder Bay North Resident Geologist District Office