Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000002309| Deposit Name(s) | Labreche - 1995, Mining Location 163t - 1887 |
|---|---|
| Deposit Status | discretionary occurrence |
| Date Created | 2019-Jul-26 |
| Date Last Modified | 2019-Jul-26 |
| Created By | T Pettigrew |
| Revised By | T Pettigrew |
Primary Commodities: gold, silver
Township or Area: Ware
Latitude: 48° 32' 57.63" Longitude: -89° 32' 16.4"
UTM Zone: 16 Easting: 312711 Northing: 5380470 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A12SE
Point Location Description: Sample 93-RIF-0143 from OGS R294 converted to NAD83
Location Method: data compilation
1887: W. Roland reported on a showing. 1986: Canadian Nickel Company Ltd. conducted magnetic and EM surveys. 1988: Inco Gold Company carried out geological mapping, sampling, and a radiometric survey. 1994: F. LaBreche carried out prospecting and sampling. 2010-11: A.G. Onchulunko and P. Gehrels carried out prospecting and trenching. 2012: A.G. Onchukenko and P. Gehrels drilled 0.6 m with a portable diamond drill. 2014: A.G. Onchulenko and P. Gehrels carried out prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.9229 | 52A11SW0054 | Open |
| 2.11386 | 52A11SW0051 | Open |
| 2.51873 | 20000007216 | Open |
| 2.55022 | 20000008163 | Open |
Province: Superior
Subprovince: Quetico
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| mafic intrusive | 1 | gabbro | host | |
| metasedimentary | 2 | wacke | 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 | ||||
| hematite | alteration | hematization | 1 | strong | disseminated | ||
| carbonate | alteration | carbonatization | 2 | strong | disseminated |
07/26/2019 (T Pettigrew) - This occurrence is located within a narrow shear zone in an east-trending, lenticular gabbro body intruding Quetico wackes in west-central Ware Township. It was first documented as mining claim 163T by Roland (1887). Values of up to $183 gold to the ton (gold at $20 per ounce, D. Romani, Ministry of Northern Development and Mines, personal communication, 1994) and $25 silver to the ton (silver at $1 per ounce) were reported from samples of sheared gabbro hosting finely disseminated pyrite (Roland 1887). The mineralization is associated with a 40 to 50 cm wide network of weakly brecciated pre- to syndeformational quartz veins within the shear zone. Alteration consists of moderate to intense hematization and carbonatization. Assay results of grab samples taken by OGS staff of the sheared and brecciated quartz veins returned values of less than or equal to 5 ppb Au (Brown, 1995). Neither Canadian Nickel nor Inco found any mineralization of interest. The best assay from Inco’s sampling program was 110 ppb Au; the rest were 20 ppb or less (Assessment reports 52A11SW0051 and 52A11SW0054). Sampling done in 2014 returned values of 0.026 ppm Au (Assessment report 20000008163).
Publication - Precambrian Geology, Oliver and Ware Townships, p. 39
Publication Number: R294 Date: 1995
Author: Brown, G.H.
Publisher Name: OGS
Book - Algoma West: It’s Mines, Scenery and Industrial Resources, p. 120-125
Date: 1887
Author: Roland, W.
Publisher Name: Warwick and Sons
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