Ontario Geological Survey
Permanent Link to this Record:
MDI52L08SW00025
| Record Name(s) | Pegmatite #6 - 1994 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 2004-Jun-07 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Lithium, Tantalum, Niobium, Tin
Township or Area: Treelined Lake Area
Latitude: 50° 16' 47.99" Longitude: -94° 28' 34.52"
UTM Zone: 15 Easting: 394819 Northing: 5570805 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52L08SW
Point Location Description: North of Separation Lake south of English River Road
Location Method: Data Compilation
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52L08SW0004 | 20000004902 | 20000004902 |
| 2.40810 | 20000004000 | 20000004000 |
| OM92-064 | 52L08SW0005 | 52L08SW0005 |
| 19 | 52L08SW8128 | 52L08SW8128 |
| 52L08SW8128 | 20000005302 | 20000005302 |
| 2.40813 | 20000003981 | 20000003981 |
Province: Superior
Subprovince: English River
Belt: Separation Lake
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Adjacent |
|---|---|---|---|---|
| Pegmatite | 1 | Complex Type, Petalite Subtype | Coarse-Grained | Host |
Jul 14, 2010 (C Ravnaas) - Hosted by mafic metvolcanics (amphibolite). Eastern Petalite Zone
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 4 | Albite | Economic And Alteration | Gangue | Albitization | 1 | Unknown | Replacement |
| 1 | Petalite | Economic | Ore | ||||
| 2 | Wodginite | Economic | Ore | ||||
| 3 | Cassiterite | Economic | Ore | ||||
| 4 | Spodumene | Economic | Ore | ||||
| 5 | Beryl | Economic | Ore | ||||
| 6 | Tourmaline | Economic | Ore | ||||
| 1 | Feldspar | Economic | Gangue | ||||
| 2 | Quartz | Economic | Gangue | ||||
| 3 | Muscovite | Economic | Gangue | ||||
| 5 | Biotite | Economic | Gangue | ||||
| 6 | Garnet | Economic | Gangue |
Jul 14, 2017 (C Ravnaas) - The ore minerals are petalite, W-ferrowodginite, cassiterite. The pegmatite contains abundant petalite, K-feldspar, quartz, muscovite, albite; and accessory spodumene, biotite, beryl, tourmaline (schorl), garnet, oxides (W-ferrowodginite, cassiterite).
Jul 14, 2017 (Therese Pettigrew) - Pegmatite 6 has a maximum Ta2O5 of 9.1 wt % (Tindle and Breaks, 2000).
Jul 14, 2010 (C Ravnaas) - The alteration mineral is albite. The type is albitization of petalite and the habit is replacement.
| Rank | Classification |
|---|---|
| 1 | Magmatic |
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | PRECAMBRIAN |
Journal - Columbite-Tantalite Mineral Chemistry from Rare-Element Granitic Pegmatites: Separation Lakes Area, NW Ontario, Canada; Mineralogy and Petrology, vol. 70, issue 3-4, pp. 165-198
Publication Number: Min&Pet V70 Scale: Date: 2000
Author: Breaks, F.W. and Tindle, A.G.
Publisher Name: Mineralogy and Petrology
Location: https://www.researchgate.net/publication/42797106_Columbite-tantalite_mineral_chemistry_from_rare-element_granitic_pegmatites_Separation_Lake_area_NW_Ontario_Canada
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:
Map - Precambrian Geology, Separation Lake Greenstone Belt, East Part
Publication Number: OFM0242 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 - Tantalum Mineralogy of Rare-Element Granitic Pegmatites from the Separation Lake Area, Northwestern Ontario
Publication Number: OFR6022 Scale: Date: 2000
Author: Tindle A.G., 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 Scale: Date: 1994
Author: Breaks F.W., Tindle A.G.
Publisher Name: Ontario Geological Survey
Location:
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