Ontario Geological Survey
Permanent Link to this Record:
MDI52L07SE00028
| Record Name(s) | English River - 1938 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-23 |
| Date Last Modified | 2023-May-24 |
| Created By | |
| Revised By |
Primary Commodities: Beryllium
Township or Area: Paterson Lake Area
Latitude: 50° 15' 59.41" Longitude: -94° 31' 27.62"
UTM Zone: 15 Easting: 391362.593 Northing: 5569373.853 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52L07SE
Point Location Description: Precise
Location Method: Conversion from MDI
1931: Beryl first noted. There is no evidence of exploration work on this pegmatite.
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Is |
|---|
May 24, 2023 (Therese Pettigrew) - The rocks of this area are pillowed and massive mafic metavolcanics with intercalated iron rich metasediments. The rocks trend east-west and have been intruded by numerous pegmatite dikes. One dike, reported to contain small beryl crystals, is apparently much larger than the others. This dike is a homogenous biotite-muscovite-quartz-microcline-graphic granite pegmatite trending 155 degrees . It is about 20 m wide and was traced for 200 m along strike. The contacts are not exposed. Accessory minerals noted are red garnet and green apatite. The colour of the pegmatite is white to pale pink. The other pegmatites of the area are exposed in islands in the English River and road cuts along the English River Road. Some of these show zoning, usually a quartz core with blocky microcline; a replacement/fracture filling zone was noted in one (Storey, 1990).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Beryl | Economic | Ore |
May 24, 2023 (Therese Pettigrew) - A sample of feldspar from the pegmatite was analysed for major elements 84-0074 (Table 12). Samples taken along the English River Road 84-2053, 2054, 2055 (Table 27) show high but not anomulous lithium and a slightly higher than background beryllium (Storey, 1990).
Jul 22, 2022 (Q Unknown) - Few small crystals of beryl in pegmatite dyke (GSC 1938).
Publication - Geology and mineral deposits of a part of southeastern Manitoba; Geological Survey of Canada, Memoir 169
Publication Number: GSC Mem 169 Page: 127 Date: 1932
Author: Wright, J F
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100801
Part - Geology of the area from Minaki to Sidney Lake, District of Kenora
Publication Number: ARV39-03.002 Page: 3 Date: 1998
Author: Derry D.R.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Geology of Canadian beryllium deposits; Geological Survey of Canada, Economic Geology Report 23
Publication Number: EconGeol 23 Page: 76 Date: 1968
Author: Mulligan, R.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102457
Mono - An evaluation of the industrial mineral potential of parts of the districts of Kenora and Rainy River
Publication Number: OFR5718 Page: 132-134 Date: 1990
Author: Storey C.C.
Publisher Name: Ontario Geological Survey
Location:
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