Ontario Geological Survey
Permanent Link to this Record:
MDI52C13NW00007
| Record Name(s) | Agassiz Au - 1984, Off Lake South - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-01 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Fleming
Latitude: 48° 54' 1.27" Longitude: -93° 48' 59.42"
UTM Zone: 15 Easting: 440160 Northing: 5416700 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52C13NW
Point Location Description: Map in Assessment report 52C13NW0002
Location Method: Data Compilation
1984: Agassiz Resources Ltd. carried out prospecting and sampling. 1985: Agassiz conducted a magnetic and VLF-EM survey and carried out sampling. 2006: Rainy River Resources carried out mapping. 2007: Rainy River Resources carried out stripping and sampling. 2010: Rainy River Resources drilled 1 DDH totalling 161 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.7912 | 52C13NW0005 | 52C13NW0005 |
| 2.8357 | 52C13NW0002 | 52C13NW0002 |
| 2.45081 | 20000004698 | 20000004698 |
| 2.37092 | 20000002652 | 20000002652 |
| 2.34901 | 20000002122 | 20000002122 |
Province: Superior
Subprovince: Wabigoon
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Quartz-Feldspar Porphyry | 1 | Quartz-Feldspar | Host |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore |
Nov 26, 2019 (Therese Pettigrew) - Grab samples collected in 1984 returned up to 9.01 g/t Au. The gold occurs concentrated in a band of foliated felsic rock that strikes northeast, dips steeply to the west, is 0.2 to 1 m (0.5 - 3 ft) wide and traced along strike for 11 m (35 ft). The northeast tip plunges into the lake waters; the southwest end could not be traced along strike. The foliated band consists of fine-grained quartz + white mica 4- pyrite rock with stringers and pods of sugary-textured quartz bearing pyrite. The band also has minor chlorite, plagioclase, and trace (<1%) chalcopyrite. Pyrite is disseminated from 1 to 20%. The host rock is quartz-feldspar porphyry, medium grained granular textured quartz + plagioclase + biotite + epidote + white mica assemblage; there is no alteration phenomena associated with the contact between the foliated and host rock. Samples were taken across the zone and Its wall rocks; attempts to find the southwest continuation of the zone failed. The gold tenor across widths of 0.6 to 1.1 m (2 to 3.5 ft) varies from 2.06 to 4.30 g/t Au; an average along a 11 m (35 ft) strike length is 2.06 g/t Au. The wall rocks to the foliated zone are not auriferous (Assessment report 52C13NW0002).
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