Ontario Geological Survey
Permanent Link to this Record:
MDI42E05NW00006
| Record Name(s) | Parole - 1980, Jean Lake - 1964, No. 4 - 9999 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1980-Jan-31 |
| Date Last Modified | 2023-May-19 |
| Created By | |
| Revised By |
Primary Commodities: Lithium, Beryllium
Secondary Commodities: Niobium, Rubidium, Tantalum
Township or Area: Lake Jean Area
Latitude: 49° 23' 47.96" Longitude: -87° 55' 50.61"
UTM Zone: 16 Easting: 432467 Northing: 5471968 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E05NW
Point Location Description: 28 diamond drill holes
Location Method: Conversion from MDI
Access Description: The Parole Lake pegmatite is exposed about 50 feet west of the shore of Parole Lake.
1955-6: Jean Lithium Mines Ltd. drilled 28 DDH totalling 4893 m. 1988: Armeno Resources conducted a ground geophysics survey. 2011: Rock Tech Lithium Inc. drilled 2 DDH totalling 446 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.11135 | 42E05NW0012 | 42E05NW0012 |
| 2.49022 | 20000008079 | 20000008079 |
| 11 | 42E05NW0009 | 42E05NW0009 |
Province: Superior
Subprovince: Quetico
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Host |
|---|---|---|---|---|
| Schist-Unsubdivided | 2 | Quartz-Feldspar-Biotite Schist | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Spodumene | Economic | Ore | ||||
| 2 | Columbite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Feldspar | Economic | Gangue | ||||
| 3 | Muscovite | Economic | Gangue |
Jul 24, 2017 (Therese Pettigrew) - The Parole Lake pegmatite is exposed about 15 m west of the shore of Parole Lake. It strikes easterly and dips 80-85 degrees S. The most conspicuous feature of the deposit is a crude-layered structure perpendicular to the strike. This structure is due to the occurrence of lenses and irregular-shaped bands of white potash feldspar, with small amounts of fine-grained quartz and a little muscovite. The lenses and bands make up almost half the deposit. Separating them is a matrix consisting of: 50% spodumene, 25% quartz, 15-20% feldspar, and 5-10% muscovite. The spodumene is pale green and occurs as slender, well oriented, prismatic crystals, averaging 2 inches or less in length; the quartz, plagioclase, and muscovite form a fine-grained groundmass (Pye, 1965). On surface, the dyke is exposed only in a few small isolated humps over about 30 m in length and 3.65 m in width, but was drilled over a strike length of 366 m (Mulligan, 1965). During the 2011 drill program, DDH PL-11-01 intersected a 7.29 m thick spodumene pegmatite from 197.47-2-4.76 m, which returned assays of 1.76% Li2O over 7.29 m, including 2.29% Li2O over 5.15 m from 198.47-203.62 m. DDH PL-11-02 intersected spodumene pegmatite from 149.23-154.66 m, which returned assays of 1.25% LI2O over 5.41 m, including 1.77% Li2O over 3.0 m from 150.25-153.25 m (AFRI 20000008079).
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Parole | 1965 | Unclassified | 1532235 | Pye, 1965, p. 77 | 1,689,000 tons (1,532,235 tonnes) @ 1.30% Li2O | Lithium 1.3 Percent |
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 - Columbium (niobium) deposits of Ontario
Publication Number: MDC014 Page: 53 Date: 1971
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
MonoMap - Geology and lithium deposits of Georgia Lake area, District of Thunder Bay
Publication Number: R031 Page: 76-77 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Geology of Canadian Lithium Deposits, Economic Geology Report No. 21, p. 57-58
Publication Number: EconGeol 21 Page: 57-58 Date: 1965
Author: Mulligan, R.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102454
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