Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31F06SE00106

Record: MDI31F06SE00106

General

Mineral Record Identification
Record Name(s) OGS sample 78-T-339B - 1978, Northeast of Hardwood Lake - 1991
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1991-Jan-23
Date Last Modified 2022-Feb-23
Created By
Revised By

Commodities

Primary Commodities: Thorium, Uranium

Secondary Commodities: Tourmaline



Location

Township or Area: Griffith

Latitude: 45° 20' 43.4"    Longitude: -77° 6' 6.79"

UTM Zone: 18    Easting: 335338   Northing: 5023468.995    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 Syenite Contains

Lithology Comments

May 26, 2011 (A Wilson) - A northeast trending pegmatite dike contains anatase and tourmaline and intrudes a menlanocratic syenite.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
AnataseAlteration1
TourmalineAlterationTourmalinization2

Mineralization Comments

May 26, 2011 (A Wilson) - A grab sample collected along a road northeast of Harwood Lake returned 2 ppm U3O8, 20 ppm Th and 4.48% K2O. Sample 78-T-339A collected from the same location returned 2 ppm U3O8, 20 ppm Th and 4.30% K2O.



Mineral Record Details

Classification
RankClassification            
1 Pegmatite
Characteristics
Rank Characteristic            
1 Intrusive

References

Map - Khartum, Renfrew County

Publication Number: M2454 Scale: 1:31,680    Date: 1981

Author: Themistocleous S.G.

Publisher Name: Ontario Geological Survey

Location:


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

Location:


MonoMap - Geology of the Khartum area, Renfrew County

Publication Number: R211 Scale:     Date: 1981

Author: Themistocleous S.G.

Publisher Name: Ontario Geological Survey

Location:


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