Ontario Geological Survey
Permanent Link to this Record:
MDI000000003390
| Record Name(s) | Ouroboros Pegmatite - 2021 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2023-May-12 |
| Date Last Modified | 2023-May-12 |
| Created By | |
| Revised By |
Primary Commodities: Tantalum, Cesium
Secondary Commodities: Lithium, Rubidium
Township or Area: Costello
Latitude: 51° 10' 41.82" Longitude: -92° 24' 37.7"
UTM Zone: 15 Easting: 541208 Northing: 5669816 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N01NW
Point Location Description: Location from Table 4 in assessment (20000020558).
Location Method: Based on Assessment
Access Description: Access is available by highway 657, than logging roads.
2021:Thomas Fingas completed mapping, prospecting, stripping, grab and channel sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 20000020558 | 20000020558 |
Province: Superior
Subprovince: Uchi
Domain: Uchi
Geological Age: Archean
May 12, 2023 (Paul Malegus) - The pegmatite intrudes into a fine-grained biotite-rich granite nearby the NW contact between the Allison Lake granite batholith and metasedimentary rocks of the Uchi Subprovince in northwestern Ontario. Ouroborous pegmatite is approximately 30 m wide and concentrically zones, with a current strike length of 140 m. The middle of the pegmatite consists of a zone that is 2.5-30 m wide, with quartz, k-feldspar and "spodumene".
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Is |
|---|---|---|---|---|
| Granite | 2 | Fine Grained |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Sericite | Economic And Alteration | Ore | ||||
| 2 | Spodumene | Alteration | Ore |
May 12, 2023 (Paul Malegus) - Both grab and channel samples were collected at the pegmatite. Channel samples returned assay results of up to 950 ppm Li, 1510 ppm Ta, 321.2 ppm Nb and 1620 ppm Cs. "Spodumene" within the pegmatite are yellow sericite pseudomorphs.
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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office