Ontario Geological Survey
Permanent Link to this Record:
MDI52I08NE00010
| Record Name(s) | Despard Lithium Deposit - 1957, Lamaune Lake Lithium - 1959 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Apr-29 |
| Date Last Modified | 2022-Jul-20 |
| Created By | |
| Revised By |
Primary Commodities: Lithium
Secondary Commodities: Cesium
Township or Area: Falcon Lake Area
Latitude: 50° 25' 25.58" Longitude: -88° 5' 27.17"
UTM Zone: 16 Easting: 422510 Northing: 5586317.99 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52I08NE
Point Location Description: Canadian Orebodies sample site
Location Method: Based on Assessment
Access Description: The property is accessed by foot, as the nearest road only comes to the adjacent claim to the south. This road is accessed by the East Jackfish Road, which is an extension of Airport Rd., east of Armstrong, Ontario, Canada.
1957: W. Despard – discovery. 1958-59: Sogemines Development Company Limited, Frobisher Limited and Ventures Limited – property acquisition, sampling, DD-10-1697 ft. 1978: W. Huston – staking. 1979-80: Cominco Limited – ground geophysics. 2009: Landore Resources Canada Inc. – airborne geophysics. 2009-11: Canadian Orebodies Inc. – prospecting, sampling, mapping
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 11 | 52I08NE0011 | 52I08NE0011 |
| 2.3207 | 52I08NE0006 | 52I08NE0006 |
| 2.45524 | 20000006311 | 20000006311 |
Province: Superior
Subprovince: Wabigoon
Belt: Caribou Lake
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Amphibolite | 1 | Amphibolitic | Sheared | Contains |
|---|---|---|---|---|
| Pegmatite | 2 | Is |
Mar 10, 2014 (A Wilson) - In surface exposures the Despard pegmatite body appears to be conformable with the enclosing metavolcanics, which strike N70 W to N80 E. The diamond drilling, however, indicated that it dips about 10 N rather than 45 -80° N, as do the metavolcanics, and that therefore it is a dike rather than a sill, as at first supposed. This dike was tested in the diamond-drill holes, at intervals of 300 feet, over a strike length of 1,500 feet. From the drilling the deposit was determined to be roughly tabular-shaped, from 20 to 50 feet, and averaging about 40 feet, in thickness.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Spodumene | Economic | Ore | ||||
| 2 | Feldspar | Economic | Gangue | ||||
| 3 | Quartz | Economic | Gangue | ||||
| 4 | Muscovite | Economic | Gangue | ||||
| 5 | Tourmaline | Economic | Gangue | ||||
| 6 | Apatite | Economic | Gangue |
Mar 10, 2014 (A Wilson) - The Despard pegmatite is a massive, white-weathering rock of simple composition. It is made up chiefly of feldspar, spodumene, and quartz with small amounts of muscovite, a little black tourmaline and, in places apatite. The texture in most exposures is porphyritic, with large crystals of feldspar and spodumene set in a relatively fine-grained matrix of pegmatite constituents. The large feldspar crystals are roughly rectangular shaped individuals of white to salmon-pink microcline or perthite, averaging 4 to 6 inches and ranging up to 18 inches in length; the spodumene phenocrysts are typically white or pale-greenish prismatic crystals averaging 2 to 3 inches and ranging up to about 12 inches in length. The phenocrysts are conspicuous in contrast to the pegmatite matrix, the minerals of which are generally 2 inches or less across and are fine-grained to medium-grained. The best intersections were obtained in diamond-drillholes Nos.1 and 2. In hole No. 1, bored 40° S, the drill cored 30.2 feet of unaltered spodumene pegmatite, of which 20.0 feet was found on analysis to average 1.68% Li2O. In hole No. 2, also bored 40°S from a set-up 115 feet north of hole No. l, the drill cored 63.5 feet of unaltered spodumene pegmatite, including two sections, one 6.6 feet long, the other 9.0 feet long, grading 1.70 and 1.53% Li2O respectively. Sogemine DDH 5 returned 1.3% Li2O over 0.3 ft. In the eastern half of the zone, much of the spodumene was found to be highly altered and the lithium content proved to be low. In the western half, an average grade of 1.60% Li2O was indicated. Sample 1589207 collected by Canadian Orebodies returned 208 ppm Cs, 2110 ppm Li and 0.45% Li2O.
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
Mono - Pegmatite mineral resources of Ontario
Publication Number: IMR021 Page: 48, 51 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Crescent Lake area, District of Thunder Bay
Publication Number: R055 Page: 50-53 Date: 1968
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Industrial minerals of northern Ontario-supplement 1
Publication Number: OFR5388 Page: 193-194 Date: 1982
Author: Vos M.A., Abolins T., Smith V.
Publisher Name: Ontario Geological Survey
Location:
Map - Crescent Lake area, Thunder Bay District
Publication Number: M2100 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Geology of Canadian Lithium Deposits; Geological Survey of Canada, Economic Geology Report 21
Publication Number: Econ Geol 21 Page: 61-62 Date: 1965
Author: Mulligan, R.
Publisher Name: Geological Survey o
Location: https://doi.org/10.4095/102454
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