Ontario Geological Survey
Permanent Link to this Record:
MDI000000002505
| Record Name(s) | Trans Pegmatite - 1956 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2021-Apr-01 |
| Date Last Modified | 2023-May-18 |
| Created By | |
| Revised By |
Primary Commodities: Lithium, Beryllium
Secondary Commodities: Niobium, Tantalum, Rubidium
Township or Area: Lake Jean Area
Latitude: 49° 23' 2.49" Longitude: -87° 55' 2.88"
UTM Zone: 16 Easting: 433412 Northing: 5470552 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E05NW
Point Location Description: Trans Li point on OGS map M2056
Location Method: Data Compilation
1956: Goldale Mines Ltd. discovered the showing and carried out stripping and sampling. 2009: Rock Tech Resources acquired the property from James Bay Midarctic Developments Inc. Rock Tech carried out prospecting, sampling, and drilled 1 DDH.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.44004 | 20000005862 | 20000005862 |
| 63.746 | 42E05NW0007 | 42E05NW0007 |
Province: Superior
Subprovince: Quetico
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Contains |
|---|---|---|---|---|
| Pegmatite | 2 | Is |
Apr 01, 2021 (Therese Pettigrew) - The Trans lithium deposit is a spodumene-bearing dike cutting metasediments exposed along the north shore of Lake Jean (Pye, 1965).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Spodumene | Economic | Ore |
Apr 01, 2021 (Therese Pettigrew) - The pegmatite dyke strikes N.50W and dips vertically to steeply east. It is exposed about 800 feet from the lakeshore along its line of strike, and has been traced intermittently on the surface for 500 feet. The width ranges from a few inches at the northwest end to about 7 feet near the southeast end (Pye, 1965). Samples collected in 1956 returned 0.49 and 0.99% Li2O (Assessment report 42E05NW0007). Samples collected by Rock Tech in 2009 returned up to 2.0% Li2O, 125 ppm Be, 86 ppm Nb, 656 ppm Rb, and 90.4 ppm Ta (Assessment report 20000005862).
Map - Georgia Lake area, Thunder Bay District
Publication Number: M2056 Scale: 1:63,360 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology and lithium deposits of Georgia Lake area, District of Thunder Bay
Publication Number: R031 Page: 65 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
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