Ontario Geological Survey
Permanent Link to this Record:
MDI42G12SE00001
| Record Name(s) | OGS Sample 02-JBS-16 - 2002, Prune Creek Pegmatite - 2002 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2003-May-26 |
| Date Last Modified | 2023-May-26 |
| Created By | |
| Revised By |
Primary Commodities: Beryllium
Secondary Commodities: Tantalum, Gallium, Niobium, Rubidium
Township or Area: Shetland
Latitude: 49° 29' 58.29" Longitude: -83° 35' 44.46"
UTM Zone: 17 Easting: 312061 Northing: 5486226 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42G12SE
Point Location Description: bulk sample
Location Method: Field Visit with GPS
Access Description: Drive south from highway 17 along the Prune Creek Road for a distance of approximately 1.5 km.
2008: Ontario Geological Survey - bulk sample
Province: Superior
Subprovince: Quetico
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Biotite-Muscovite Sodic | Host |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | Biotitic | Adjacent |
Apr 11, 2014 (A Wilson) - The dike is an albite-rich muscovite petmattie in which most of the potassium feldspar has been albitized. Minor, fine-grained, red garnet and rare green to blue fluorapatite and opaque oxide minerals are subtly present in hand specimen.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Apatite | Economic | Ore | ||||
| 2 | Beryl | Economic | Ore | ||||
| 3 | Garnet | Economic | Ore | ||||
| 4 | Ferrocolumbite | Economic | Ore | ||||
| 5 | Ferrotantalite | Economic | Ore |
Apr 11, 2014 (A Wilson) - A bulk sample of the dike returned 463 ppm Rb, 98 ppm Be, 60 ppm Ta, 29 ppm Ga and 18 ppm Sn, Nb/Ta of 0.77. Suggests that the pegmatite is fractionated and evolved. The ferro columbite contains 24.4 to 51.4 wt% Ta2O3 and the ferrotantalite contains 53.1 to 68.5 wt% Ta2O3
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Beryllium | Unknown | 98 | ppm | |||
| Gallium | Unknown | 29 | ppm | |||
| Niobium | Unknown | 60 | ppm | |||
| Rubidium | Unknown | 463 | ppm | |||
| Tantalum | Unknown | 78 | ppm | |||
| Tin | Unknown | 18 | ppm |
Compend - Summary of Field Work and Other Activities, 2002
Publication Number: OFR6100 Page: 6.1-6.42 Date: 2002
Author: Baker C.L., Debicki E.J., Kelly R.I., Parker J.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Hearst-Kapuskasing sheet, geological compilation series, Algoma and Cochrane districts
Publication Number: M2166 Scale: 1:253,440 Date: 1969
Author: Bennett G., Brown D.D., George P.T., Leahy E.J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Fertile and Peraluminous Granites and Related Rare-Element Mineralization in Pegmatites, North-Central and Northeastern Superior Province
Publication Number: OFR6195 Page: 87-88 Date: 2006
Author: Breaks F.W., Selway J.B., Tindle A.G.
Publisher Name: Ontario Geological Survey
Location:
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