Ontario Geological Survey
Permanent Link to this Record:
MDI52H01NE00005
| Record Name(s) | MNW - 1955, Noborac - 1984, Wilsonk - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1984-Jul-27 |
| Date Last Modified | 2024-Mar-22 |
| Created By | |
| Revised By |
Primary Commodities: Lithium, Tantalum
Secondary Commodities: Beryllium, Cesium, Niobium, Rubidium, Gallium
Township or Area: Hanson Lake Area
Latitude: 49° 14' 11.86" Longitude: -88° 0' 16.87"
UTM Zone: 16 Easting: 426863.989 Northing: 5454246.94 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42E04NW, 52H01NE
Point Location Description: Precise
Location Method: Conversion from MDI
1955: Staked by J. Moschuk, T. Neborac, and M. Wilson. 1956: Consolidated Mining and Smelting Company of Canada Ltd. optioned the property and drilled 14 DDH totalling 761.7 m. 1960: Staked by F. Koosel as a cesium prospect. 1977: A Dutch firm (Jan de Poorter) became interested in acquiring a bulk sample of 2,000 metric tons with a Li2O content of no less than 4.0 percent and a Fe2O3, content of no greater than 0.10 percent. The firm reneged on their deal. 1988: Phantom Exploration Services conducted sampling. 2007: James Bay Midarctic Developments Inc. staked the property. 2009: Rock Tech Resources Inc. acquired the property and conducted prospecting, sampling, and drilled 4 DDH totalling 247 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.44004 | 20000005862 | 20000005862 |
| 2.12408 | 52H01NE0003 | 52H01NE0003 |
| 2.12831 | 52H01NE0001 | 52H01NE0001 |
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Jun 29, 2017 (Therese Pettigrew) - The bedrock of the area is of Precambrian age. The oldest Archean rocks are metasediments; these strike east-northeast, dip steeply to the north, and are overlain by metavolcanics. The metasediments were intruded by large masses of Algoman granitic rocks, numerous sills and dikes, pegmatite and aplite. Small stock-like masses and narrow dikes of basic rocks also cut the metasediments (Vos et al., 1982).
| Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Quartz-Feldspar-Biotite Schist | Adjacent |
|---|---|---|---|---|
| Pegmatite | 2 | Host | ||
| Granite | 3 | Adjacent | ||
| Diabase | 4 | Diabase Dykes And Sills |
Jun 29, 2017 (Therese Pettigrew) - Pegmatites are common in the area, they occur close to and within large masses of granitic rock. The pegmatites occur as irregular-shaped bodies and as thin dikes, sills and attenuated lenses. They show regional zoning and a genetic association of pegmatites and granite is indicated. The deposit "occurs in massive, medium-grained, pink granite and is localized along a fracture, which strikes north and dips 75-80 W. It ranges up to 45 feet in thickness and has been traced in outcrops and trenches intermittently for a distance of 1,400 feet. Although it pinches and swells, the M.N.W. dike is essentially tabular in shape; towards its extremities it splits into two, and in one place three, narrow units separated by 5-15 feet of intervening wallrock. It is unique in the area in that it is characterized by an exceptionally well-developed, internal-zonal structure. It is made up of five distinct petrographic units: (1) a quartz-spodumene core; (2) a feldspar-muscovite-quartz intermediate zone; (3) cleavelandite-rich intermediate zones; (4) muscovite-quartz-feldspar wall zones; and (5) tourmaline-rich border zones." (Pye 1965, p.84).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Spodumene | Economic | Ore | ||||
| 2 | Beryl | Economic | Ore | ||||
| 3 | Columbite | Economic | Ore | ||||
| 4 | Cassiterite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Feldspar | Economic | Gangue | ||||
| 3 | Muscovite | Economic | Gangue | ||||
| 4 | Tourmaline | Economic | Gangue | ||||
| 5 | Cleavelandite | Economic | Gangue | ||||
| 6 | Apatite | Economic | Gangue | ||||
| 7 | Albite | Economic | Gangue |
Jun 29, 2017 (Therese Pettigrew) - The core of the M.N.W. dike has a length of about 400 feet and widths of up to 30 feet. The core of the deposit was sampled in 1956 and was found to average better than 1.5 percent Li2O (Pye, 1965). The surface samples assay results indicated high concentration of beryllium (3.54%) and cesium (0.38%) in sample GL-11, and a high concentration of lithium oxide (5.85%). Marked zonation was observed in the field at this location, where the outer zone was rich in beryl crystals and the inner zone contained white spodumene with low iron content. The assay results indicate the concentrations of lithium oxide (Li2O) in the range of 0.022% to 5.85% with an average of 0.83%, beryllium <5 ppm to 35,400 ppm (3.54%), cesium 4.8 ppm to 3,870 ppm, gallium 17 ppm to 50 ppm, niobium 2 ppm to 145 ppm, tantalum 4.4 ppm to 116 ppm, and rubidium 52.3 ppm to 623 ppm (AFRI 20000005862).
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| MNW | 1956 | Unclassified | 36287 | Vos et al., 1982, p. 159 | It has been estimated that the core has 40,000 tons of high-grade lithium material and surface sampling in the core has yielded assay values as high as 2 percent Li 20 over 30 feet (Vos et al., 1982). | Lithium 2 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 - Geology and lithium deposits of Georgia Lake area, District of Thunder Bay
Publication Number: R031 Page: 47, 84 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Niobium (Columbium) and Tantalum in Canada; Geological Survey of Canada, Economic Geology Report 29
Publication Number: Econ Geol 29 Page: 60-66 Date: 1974
Author: Dawson, K.R.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/103996
Mono - Industrial minerals of northern Ontario-supplement 1
Publication Number: OFR5388 Page: 158-159 Date: 1982
Author: Vos M.A., Abolins T., Smith V.
Publisher Name: Ontario Geological Survey
Location:
Article - 1978 report of North Central Regional Geologist
Publication Number: MP084.004 Page: 42 Date: 1997
Author: Fenwick K.G., Scott J.F.
Publisher Name: Ontario Geological Survey
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:
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