Ontario Geological Survey
Permanent Link to this Record:
MDI31F05NE00006
Record Name(s) | Hopefield Roadcut - 1991 |
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Related Record Type | Simple |
Related Record(s) | |
Record Status | Discretionary Occurrence |
Date Created | 1992-Feb-10 |
Date Last Modified | 2023-Aug-03 |
Created By | |
Revised By |
Primary Commodities: Feldspar (Nonmetals)
Township or Area: Radcliffe
Latitude: 45° 26' 14.86" Longitude: -77° 33' 10.55"
UTM Zone: 18 Easting: 300328.002 Northing: 5034719.003 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F05NE
Point Location Description: approximate
Location Method: Data Compilation
Access Description: North side of a road cut on the Hopefield to Halfway road at a point 7.8 km east of Hopefield.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Host |
---|---|---|---|---|
Tonalite | 2 | Biotite Tonalite | Gneissic | Host |
Jun 30, 2011 (A Wilson) - The pegmatite dike is 1 m wide and dips ahallowly westward.
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
---|---|---|---|---|---|---|---|
1 | Feldspar | Economic | Ore | ||||
2 | Hornblende | Economic | Ore | ||||
3 | Biotite | Economic | Ore | ||||
4 | Quartz | Economic | Ore |
Jun 30, 2011 (A Wilson) - The pegmatite contains a well developed quartz core, lined by potassic feldspar megacrysts (15-20 cm in size).
Rank | Classification |
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1 | Pegmatite |
Mono - Granitic pegmatites of the Bancroft area, southeastern Ontario
Publication Number: OFR5717 Page: 144-145 Date: 1990
Author: Goad B.E.
Publisher Name: Ontario Geological Survey
Location:
Map - Barry's Bay, Precambrian geology
Publication Number: M2461 Scale: 1:100,000 Date: 1983
Author: Lumbers S.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Brudenell-Raglan area, County of Renfrew, Ontario
Publication Number: M1953-02 Scale: 1:63,360 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office