Ontario Geological Survey
Permanent Link to this Record:
MDI52L07SE00041
| Record Name(s) | Pegmatite 93-249 - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2004-Jun-07 |
| Date Last Modified | 2023-May-19 |
| Created By | |
| Revised By |
Primary Commodities: Lithium
Secondary Commodities: Tantalum, Tin, Beryllium, Fluorite, Rubidium
Township or Area: Paterson Lake Area
Latitude: 50° 15' 45.01" Longitude: -94° 31' 51.63"
UTM Zone: 15 Easting: 390878 Northing: 5568938.99 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52L07SE
Point Location Description: Island on Separation Lake west of bridge
Location Method: Data Compilation
Access Description: on an island in English River
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52L08SW0004 | 20000004902 | 20000004902 |
| 2.20238 | 52L08SW2008 | 52L08SW2008 |
Province: Superior
Subprovince: English River
Belt: Separation Lake
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Beryl Type | Fine Grained | Host |
|---|---|---|---|---|
| Granite | 2 | Biotite-Muscovite-Garnet Leucogranite | Adjacent |
Jul 13, 2010 (C Ravnaas) - Separation Rapids Pluton, biotite-muscovite-garnet leucogranite, muscovite pegmatitic leucogranite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Ferrocolumbite | Economic | Ore | ||||
| 2 | Beryl | Economic | Ore | ||||
| 3 | Cleavelandite | Economic | Ore | ||||
| 1 | Feldspar | Economic | Gangue | ||||
| 2 | Quartz | Economic | Gangue | ||||
| 3 | Garnet | Economic | Gangue | ||||
| 4 | Muscovite | Economic | Gangue | ||||
| 5 | Biotite | Economic | Gangue | ||||
| 6 | Cordierite | Economic | Gangue |
Jul 13, 2010 (C Ravnaas) - The ore minerals are ferrocolumbite (1), beryl (1). The pegmatite contains abundant albite (cleavelandite), K-feldspar, quartz, garnet, muscovite, biotite; accessory ferrocolumbite, beryl; cordierite altered to garnet-muscovite-biotite and local beryl.
Jul 14, 2017 (Therese Pettigrew) - Pegmatite 93-249 is enriched in Rb (993 ppm), Ta (31 ppm), Li (1629 ppm), Sn (132 ppm), and F (2510 ppm) (Breaks, 2008).
| Rank | Classification |
|---|---|
| 1 | Magmatic |
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | PRECAMBRIAN |
Map - Precambrian Geology, Separation Lake Greenstone Belt-West Sheet
Publication Number: P2673 Scale: 1:20,000 Date: 2008
Author: Blackburn C.E., Young J.B., Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Mono - Tantalum Mineralogy of Rare-Element Granitic Pegmatites from the Separation Lake Area, Northwestern Ontario
Publication Number: OFR6022 Date: 2000
Author: Tindle A.G., Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology, Separation Lake Greenstone Belt, West Part
Publication Number: OFM0241 Scale: 1:20,000 Date: 1994
Author: Blackburn C.E., Young J.B., Searcy T.O., Donahue K.
Publisher Name: Ontario Geological Survey
Location:
Mono - Reference Specimen Collection of Rare-Element Pegmatites, Granitic Rocks and Migmatites, Mainly from the Superior Province of Ontario
Publication Number: OFR6224 Date: 2008
Author: Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Article - Granite-Related Mineralization in Northwestern Ontario: II. Detailed Examination of the Separation Rapids (English River) Rare-Element Pegmatite Group
Publication Number: MP163.024 Date: 1994
Author: Breaks F.W., Tindle A.G.
Publisher Name: Ontario Geological Survey
Location:
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