Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31F06SE00123

Record: MDI31F06SE00123

General

Mineral Record Identification
Record Name(s) Tooey Lake Prospect - 1976, Imperial Oil Occurrence - 1976, OGS sample 78-T-905 - 1978, Legris Deposit - 1981
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1993-Feb-27
Date Last Modified 2022-Jul-19
Created By
Revised By

Commodities

Primary Commodities: Thorium, Phosphate, Feldspar (Nonmetals)

Secondary Commodities: Uranium



Location

Township or Area: Brougham

Latitude: 45° 20' 24.54"    Longitude: -77° 1' 22.03"

UTM Zone: 18    Easting: 341520.002   Northing: 5022728    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31F06SE

Point Location Description: approximate

Location Method: Data Compilation



Exploration History

1950 - H. A. Legris - prospecting. 1976: Imperial Oil Ltd. - geophysical survey, mapping, DD-3-414 ft.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
31F06SE9660 31F06SE9660 31F06SE9660
13 31F06SE9671 31F06SE9671

Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Pegmatite 1 Granite Host
Paragneiss 1 Hornblende-Biotite Contains

Lithology Comments

May 03, 2011 (A Wilson) - Apatite occurs in a black calc-silicate gneiss. The gneiss contains layers of coarse- and fine-grained apatite-calcite-biotite-feldspar gneiss. A 20 m wide and 400 m long, pink, homogeneous granite pegmatite cuts interlayered marble, paragneiss and apatite-bearing calc-silicate gneiss.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1AnataseEconomicOre
2PyriteEconomicOre
3ZirconEconomicOre
4ApatiteEconomicOre
5MicroclineEconomicOre

Mineralization Comments

May 03, 2011 (A Wilson) - Green apatite is disseminated in both sections, but is coarser grained in the coarser grained gneiss. Apatite concentrates made from the fine-and coarse-grained gneiss contained 10.7 and 11.2 per cent respectively of apatite. This concentrate could be used for fertilizer or chemical production. As well, biotite can be removed completely from the samples by screening and magnetic separation. Relatively pure microcline comprises approximately 10% of the dyke, but most microcline occurs within graphite granite intergrowths. A grab sample collected by the OGS in 1978 returned 29 ppm U3O8, 1.310% Th and 2.0 K2O%. Trench samples averaged 0.02 to0.025% U3O8, and 0.35 to 0.40% Th. The best drill intersection assayed 0.025% U3O8, over 1.8 meters. Pyrochlore, uranothorite, allanite, and zircon occur in the central part of the pegmatite dike, often associated with magnetite, pyroxene and hemitization.



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:


MonoMap - Geology of the Khartum area, Renfrew County

Publication Number: R211 Page: 35, 45  Date: 1981

Author: Themistocleous S.G.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Industrial minerals of the Algonquin region

Publication Number: OFR5425 Page: 6-7, 55  Date: 1983

Author: Martin W.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Industrial minerals of the Pembroke-Renfrew area, part 2

Publication Number: MDC022 Page: 8-9, 168  Date: 1981

Author: Storey C.C., Vos M.A.

Publisher Name: Ontario Geological Survey

Location:


Mono - Uranium and thorium deposits of southern Ontario

Publication Number: OFR5311 Page: 546  Date: 1981

Author: Gordon J.B., Rybak U.C., Robertson J.A.

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