Ontario Geological Survey
Permanent Link to this Record:
MDI000000003211
| Record Name(s) | Allison Lake North - 2021, Latreille Lake South - 2022 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 2022-Oct-19 |
| Date Last Modified | 2023-May-12 |
| Created By | |
| Revised By |
Primary Commodities: Tantalum, Rubidium
Secondary Commodities: Lithium, Cesium
Township or Area: Costello
Latitude: 51° 8' 10.02" Longitude: -92° 24' 18.08"
UTM Zone: 15 Easting: 541627 Northing: 5665130 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N01SW
Point Location Description: Location from map in Portofino Resources news release Sept 7, 2021
Location Method: Data Compilation
2021: Portofino Resources acquired the property and carried out prospecting and sampling. 2022: Portofino carried out a high-resolution magnetic heli-borne survey.
Province: Superior
Subprovince: Uchi
Domain: Uchi
Geological Age: Archean
Oct 19, 2022 (Therese Pettigrew) - The property is positioned along the contact between the Allison Lake pegmatite granite batholith and the Jubilee Lake metasedimentary rocks of the Uchi Subprovince in northwestern Ontario. The Allison Lake batholith is a strongly evolved peraluminous granitic body that contains highly anomalous rare-element mineralization along its outer rim.
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Is |
|---|---|---|---|---|
| Granite | 2 | Is |
Oct 19, 2022 (Therese Pettigrew) - Sampling by Portofino Resources in 2021 returned up to 398 ppm Li, 90.5 ppm Cs, 1040 ppm Rb and 135 ppm Ta (Portofino Resources news release Sept 7, 2021).
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office