Ontario Geological Survey
Permanent Link to this Record:
MDI31F06NE00084
| Record Name(s) | OGS Sample H-414 - 1977, Lake Clear Occurrences - 2001, Grattan Township Occurrences - 1977 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1986-Jun-18 |
| Date Last Modified | 2023-Jun-12 |
| Created By | |
| Revised By |
Primary Commodities: Uranium, Thorium
Secondary Commodities: Rare Earth Elements, Cerium, Lanthanum, Neodymium
Township or Area: Grattan
Latitude: 45° 28' 45.53" Longitude: -77° 8' 22.39"
UTM Zone: 18 Easting: 332782.999 Northing: 5038424.995 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 | Sandstone | 1 | Arenite | Contains |
|---|---|---|---|---|
| Syenite | 2 | Gneissic | Contains | |
| Quartz Monzonite | 3 | Gneissic | Contains |
Jun 09, 2011 (A Wilson) - The showing occurs in granitic meta-arkose and in gneissic hornblende-biotite syenite intruded by granite pegmatite or pyroxene veins.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Uranothorite | Economic | Ore | ||||
| 5 | Magnetite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Gangue | ||||
| 4 | Pyrrhotite | Economic | Gangue | ||||
| 5 | Chalcopyrite | Economic | Gangue |
Jun 09, 2011 (A Wilson) - A grab sample collected by Themistocleous returned 0.51% U3O8, 1.22% K2O, and 7.6% Th. The sample also returned 420 ppm Ce, 300 ppm La, 300 ppm Nd, <0.1ppm Ta. Uranothorite or thorite is found in fractures in pegmatites or in pyroxene veins.
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| 2 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
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
Location:
MonoMap - Radioactive mineral deposits of the Pembroke-Renfrew area
Publication Number: MDC023 Page: 130-131, 140 Date: 1981
Author: Masson S.L., Gordon J.B.
Publisher Name: Ontario Geological Survey
Location:
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: OFR5311 Page: 582 Date: 1981
Author: Gordon J.B., Rybak U.C., Robertson J.A.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of the Clontarf area, Renfrew County
Publication Number: R209 Page: 43-45 Date: 1981
Author: Themistocleous S.G.
Publisher Name: Ontario Geological Survey
Location:
Mapset - Uranium mineral potential charts for parts of southern Ontario
Publication Number: OFR5260 Page: Chart C Scale: 1:126,720 Date: 1979
Author: Robertson J.A., Bright E.G., Gordon J.B., Springer J.S., MacDonald C.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Clontarf, Renfrew County
Publication Number: M2433 Scale: 1:31,680 Date: 1980
Author: Themistocleous S.G.
Publisher Name: Ontario Geological Survey
Location:
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