Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31F06SE00089

Record: MDI31F06SE00089

General

Mineral Record Identification
Record Name(s) West of Merchands Lake - 1979, Marchand Lake - 1979, OGS Sample 78-T-669 - 1978
Related Record Type Simple
Record Status Occurrence
Date Created 1986-Feb-25
Date Last Modified 2022-Jan-05
Created By Q Unknown
Revised By A Wilson

Commodities

Primary Commodities: Thorium, Uranium

Secondary Commodities: Feldspar (Nonmetals)



Location

Township or Area: Griffith

Latitude: 45° 16' 53.19"    Longitude: -77° 3' 3.57"

UTM Zone: 18    Easting: 339143.997   Northing: 5016261.997    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31F06SE

Point Location Description: approximate

Location Method: Data Compilation



Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Pegmatite 1 Granite Host
Syenite 2 Gneissic Contains

Mineralization Comments

May 25, 2011 (A Wilson) - These selected samples show that most of the radioactivity is due to the high thorium content except one sample from east of Marchands Lake, lot 34, concession IV, GriffithTownship, which returned values of 0.11 ppm U308, 5.0 ppm Th and 4.98% K20.



Mineral Record Details

Classification
RankClassification            
1 Pegmatite
Characteristics
Rank Characteristic            
1 Intrusive

References

Map - Geological series, Khartum area, southern Ontario

Publication Number: P2240 Scale: 1:15,840    Date: 1979

Author: Themistocleous S.G.

Publisher Name: Ontario Geological Survey


MonoMap - Geology of the Khartum area, Renfrew County

Publication Number: R211 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


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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office