Ontario Geological Survey
Permanent Link to this Record:
MDI000000003047
| Record Name(s) | Bear Head Zone - 2021 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2022-Jun-16 |
| Date Last Modified | 2022-Jun-16 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Copper
Township or Area: McVicar Lake Area
Latitude: 51° 32' 2.41" Longitude: -91° 27' 8.7"
UTM Zone: 15 Easting: 607339 Northing: 5710346 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O11SW
Point Location Description: DDH BH-02 from Cross River Ventures June 16, 2022 press release
Location Method: Data Compilation
2020: Cross River Ventures Corp. acquired the property. 2021: Cross River Ventures carried out prospecting and sampling. 2022: Cross River Ventures drilled 8 DDH totalling 2281.5 m.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Lang Lake
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Contains | ||
| Vein | 3 | quartz | Host | |
| Feldspar Porphyry | 3 | dykes | Near | |
| Tonalite | 4 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Pyrite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue |
Jun 16, 2022 (Therese Pettigrew) - The Bear Head Trend was discovered in summer 2021 by Cross River Ventures field crews. The target is defined by a 700 m strike of surface samples assaying up to 19.75 g/t Au (Cross River Ventures press release October 5, 2021) following a prominent WNW-trending topographic ridge system with mapped iron formation, sheared mafic metavolcanics, and mineralized quartz veins. The Bear Head zone is located 600 m south of the Chellow Vein (MDI52O11SW00004) near the southern contact between mafic volcanics and granite along the Bear Head Fault Zone. Discovery hole BH-02 intersected 0.5 m of 41.1 g/t gold in a smoky grey quartz vein with visible gold, chalcopyrite, and pyrrhotite at 153.75 m downhole. The quartz vein cross-cuts a locally sheared mafic metavolcanic succession, with a feldspar-porphyry dyke cutting host rocks proximal to the vein footwall. The gold interval is located near the east-west trending contact between volcano-sedimentary host rocks and a tonalite intrusive body. The contact area is characterized by damage zones and abundant shearing, various styles of alteration and veining, as well as feldspar porphyry dikes. DDH BH-02 also returned 1.17 g/t Au and 2310 ppm Cu over 1.0 m at 74.6 m depth. DDH BH-03 returned up to 3.23 g/t Au and 1.185% Cu over 0.47 m at 43.36 m depth. (Cross River Ventures press release June 16, 2022).
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