Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000002340| Deposit Name(s) | Broken Heart West - 2010, Undersill Lake Ne - 1982 |
|---|---|
| Deposit Status | occurrence |
| Date Created | 2019-Sep-30 |
| Date Last Modified | 2019-Nov-04 |
| Created By | T Pettigrew |
| Revised By | T Pettigrew |
Primary Commodities: gold, copper
Township or Area: Summers
Latitude: 49° 37' 14.67" Longitude: -88° 1' 1.12"
UTM Zone: 16 Easting: 426545 Northing: 5496961 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E12SW, 52H09SE
Point Location Description: Sample location in Assessment report 20000008634
Location Method: data compilation
1982-87: A group of 22 claims were staked by J. McMahon, M. Rentz, and W. Cox, including the old Murphy showings, south of the Leitch property. Geological mapping, trenching, and sampling was conducted over a flagged grid. 1989: Nipigon Gold Resources carried out prospecting, trenching, mapping, sampling, airborne geophysics, and drilled 2 DDH totalling 150 m. 2010: Prodigy Gold Inc. conducted prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| OP93-689 | 42E12NW0123 | Open |
| 2.53415 | 20000008634 | Open |
| 2.6254 | 52H09SE0008 | Open |
| 30 | 52H09SE0026 | Open |
| 2.14532 | 42E12SW0040 | Open |
| 2.14533 | 52H09SE8103 | Open |
| 2.11625 | 42E12SW0059 | Open |
Province: Superior
Subprovince: Wabigoon
Belt: Beardmore-geraldton
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| metasedimentary | 1 | wacke | contains | |
| ironstone | 2 | near | ||
| vein | 3 | quartz | host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore | ||||
| 2 | arsenopyrite | economic | ore | ||||
| 3 | tetrahedrite | economic | ore |
09/30/2019 (T Pettigrew) - The occurrence consists of sheared wacke up to 1 m wide (strike 073 degrees) in close contact with banded oxide ironstone to the south. The shear zone contains en echelon quartz-carbonate veins, veinlets and lenses ranging from 5 to 30 cm wide with a maximum width of 1.5 m (vein exhibits pinch and swell feature). Small scale evidence for shearing is indicated by rounded, rotated quartz eyes within the wacke. Crack-seal textures with chlorite-sericite alteration predominate in the quartz vein material (alteration was also observed in sheared wall rock). Mineralization is primarily restricted to the wacke and consists of disseminated euhedral pyrite (1%), arsenopyrite (<1%), and possible tetrahedrite (Mason and White, 1986). Nipigon Gold’s DDH NG-89-02 returned up to 0.254 ppm Au and DDH NG-89-03 returned up to 0.368 ppm Au from quartz veins containing pyrite in iron formation (Assessment report 52H09SE0026). Sample G31109 returned an assay of 1.2 g/t Au. Sample G31281 returned an assay of 2640 ppm Cu from a 14 cm wide quartz-carbonate vein with 30% sulphides, including arsenopyrite and cubes of hematite (Assessment report 20000008634).
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