Ontario Geological Survey
Permanent Link to this Record:
MDI000000001262
Record Name(s) | OGS Sample H-445 - 1977, Grattan Township Occurrences - 1977, Lake Clear Occurrences - 2001 |
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Related Record Type | |
Record Status | Discretionary Occurrence |
Date Created | 2011-Jun-02 |
Date Last Modified | 2022-Jan-05 |
Created By | A Wilson |
Revised By | A Wilson |
Primary Commodities: Thorium, Uranium
Township or Area: Grattan
Latitude: 45° 28' 7.26" Longitude: -77° 3' 33.79"
UTM Zone: 18 Easting: 339018.003 Northing: 5037080 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F06NE
Point Location Description: approximate
Location Method: Data Compilation
1977: Ontario Geological Survey - sampling and analysis
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Granite | Intrudes |
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Quartz Monzonite | 2 | Gneissic | Contains | |
Feldspathic Wacke | 3 | Feldspathic Arenite | Contains |
Jun 10, 2011 (A Wilson) - The showing occurs at the contact between a quartz monzonite intrusion and a gneissic feldspathic arenite.
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
---|---|---|---|---|---|---|---|
1 | Uranothorite | Economic | Ore |
Jun 10, 2011 (A Wilson) - A grab sample collected by Themistocleous returned: 0.0012% U3O8, 6.85% K2O, and 270 ppm Th.
Rank | Classification |
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1 | Pegmatite |
Rank | Characteristic |
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1 | Disseminated |
MonoMap - Geology of the Clontarf area, Renfrew County
Publication Number: R209 Scale: Date: 1981
Author: Themistocleous S.G.
Publisher Name: Ontario Geological Survey
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: OFR5311 Scale: Date: 1981
Author: Gordon J.B., Rybak U.C., Robertson J.A.
Publisher Name: Ontario Geological Survey
MonoMap - Radioactive mineral deposits of the Pembroke-Renfrew area
Publication Number: MDC023 Scale: Date: 1981
Author: Masson S.L., Gordon J.B.
Publisher Name: Ontario Geological Survey
Map - Geological series, Clontarf area, Renfrew County, southern Ontario
Publication Number: P1560 Scale: 1:15,840 Date: 1978
Author: Themistocleous S.G.
Publisher Name: Ontario Geological Survey
Map - Clontarf, Renfrew County
Publication Number: M2433 Scale: 1:31,680 Date: 1980
Author: Themistocleous S.G.
Publisher Name: Ontario Geological Survey
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office