Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D16SW00098

Record: MDI31D16SW00098

General

Mineral Record Identification
Record Name(s) Briar Court Occurrence - 1968, D.J. Smith - 1982, Higgins Lake Group - 1955
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1982-Jan-08
Date Last Modified 2023-Mar-22
Created By
Revised By

Commodities

Primary Commodities: Uranium



Location

Township or Area: Cavendish

Latitude: 44° 46' 17.05"    Longitude: -78° 21' 49.32"

UTM Zone: 17    Easting: 708606   Northing: 4960938    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D16SW

Point Location Description: Pit symbol southeast of property symbol ' 4 ' in lot 15, con 9.

Location Method: Data Compilation

Access Description: From Burleigh Falls travel west on Hwy 36 to its junction with Hwy 507. Continue north on Hwy 507 for 20 km.



Exploration History

1951- : D. J. Smith – sampling, trenching, sampling, mapping; 1955: Drude Uranium Mines Ltd. – drill hole 7, assays 1957-58 : H.G. Greene acquired N half of lot 15, con 9 and S half of lot 15, con 10 - trenching and mapping; 1968-69 : optioned to Briar Court Mines Ltd. - scintillometer and E.M surveys; pitting and trenching and 6 DDH (1400 ft.); 1974 : Hibbart ( S of lot 15, con 10 ) and Drude ( N of lot 15, con 9 ). 1976-77: R.W. Drude – airborne radiometric survey, assays, drilling, trenching


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
63.727 31D16SW8547 31D16SW8547
63.522 Tweed File 1 31D16SW8548 31D16SW8548
Tweed File 11 / 63.744 31D09SW0001 31D09SW0001
Tweed File 22 / 63.2421 31D16NW8543 31D16NW8543
Tweed File 66 / 2.2258 31D16SW9000 31D16SW9000
63.2421 31D16NW8543 31D16NW8543
2.2354 31D16SW8537 31D16SW8537
27 31D16SW8551 31D16SW8551

Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Elzevir

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Pegmatite 1 Granitic Contains
Syenite 2 Syenite Contains
Limestone 3 Limestone Contains
Paragneiss 4 Contains

Lithology Comments

Jan 17, 2017 (A Wilson) - In the south half of lot 16 concession 9, a granite pegmatite mass 200 ft. east of the Buckhorn road is exposed at the west side of a swamp north of Higgins Lake. The mass has an exposed width of 110 ft., the west side being in contact with diopside rock. In the north half of lot 16 concession 9 a bulldozed area exposed red to deep-brick-red leucogranite with pegmatitic patches. Uranium mineralization occurs in east-trending ridges of red syenitic granite.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1AllaniteEconomicOre
2UranothoriteEconomicOre
3ZirconEconomicOre
4FergusoniteEconomicOre
5MagnetiteEconomicOre

Mineralization Comments

Jan 17, 2017 (A Wilson) - Hole 7, 71.0-71.5 ft: 0.09% U3O8.; Hole 15, sample 10745, 150-155 ft: 0.16% U3O8; Hole 27, #11804, 186-190 ft: 0.15% U3O8, #11807, 197.5-200 ft: 0.20% U3O8; Hole S-36, #1188, 118-120 ft: 0.20% U3O8; Hole S-6, #729, 10-11.5 ft: 0.41% U3O8; Hole 44, #11919, 360-362 ft: 0.26% U3O8. Geiger readings in test pits reached 200 to 400 times background. A typical channel sample assayed 0.03% U3O8 (chemical) and 0.07% U3O8 (radiometric) over 5 feet. Assays from the Drude Uranium Mines Ltd. drill program returned the following assays - Hole 4 83.6 m, 0.10% U3O8; DDH 3B, at 137.89 m assayed 0.012% U3O8. Assays from Briar Court Mines Ltd. DDH 1 (1969) returned assays of 75-85 ft: 0.16 oz/t Ag, 0.02% Pb, 0.02% Zn; 90-96.5 ft: 0.02% Zn; 85-90 ft: 0.22% Cu. Assays from R. Drude trenching include: 0.19% U3O8, 0.175% U3O8 ; sample 1: 0.594% U3O8; 0.171% U3O8 The radioactive mineralization is associated with a fault fracture pattern along the margins of the granite and syenitic bodies that intrude the metasediments.



Mineral Record Details

References

File - Resident Geologist files Cavendish 5, 6, 15, 16, 21, 24, 50, 67, 68

Publication Number: Date:

Author:

Publisher Name:

Location: Tweed RGP office


Publication - Canadian deposits of uranium and thorium; Geological Survey of Canada, Economic Geology Series 16

Publication Number: GSC EconGeol 16 Page: 141  Date: 1952

Author: Lang, A.H.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/102450


Part - Radioactive mineral occurrences in the Bancroft area

Publication Number: ARV65-06 Page: 162-163  Date: 1998

Author: Satterly J., Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Pegmatite mineral resources of Ontario

Publication Number: IMR021 Page: 55  Date: 1997

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Uranium and thorium deposits of southern Ontario

Publication Number: MDC004 Page: 60  Date: 1967

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Uranium and thorium deposits of southern Ontario

Publication Number: OFR5311 Page: 475  Date: 1981

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

Publisher Name: Ontario Geological Survey

Location:


Mono - An inventory of the mineral resources in Peterborough County

Publication Number: OFR5635 Page: 217-218  Date: 1987

Author: Menard A.G.

Publisher Name: Ontario Geological Survey

Location:


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