Ontario Geological Survey
Permanent Link to this Record:
MDI31D09NE00033
| Record Name(s) | Zenmac - 1982, Loon Call - 1982 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1982-Jan-04 |
| Date Last Modified | 2023-Jun-19 |
| Created By | |
| Revised By |
Primary Commodities: Uranium
Secondary Commodities: Thorium
Township or Area: Anstruther
Latitude: 44° 44' 13.43" Longitude: -78° 10' 3.31"
UTM Zone: 17 Easting: 724257.08 Northing: 4957645.33 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D09NE
Point Location Description: Precise
Location Method: Conversion from MDI
Access Description: From Apsley, travel south on Hwy 28 for 2 km to township road. Travel west on township road for 2.5 km to the east end of Loon Call Lake and then by boat to the property at the west end of the lake.
1953: Newkirk Mining Corp. Ltd. carried out an airborne scintillometer survey. 1955: Zenmac Metal Mines Ltd. completed 19 diamond drill holes totaling 6,400 feet. 1954-55: surveys on 14 claims. 1967-69: Glenn Explorations completed 14 diamond drill holes totaling 10,377 feet. 1974: Camindex Mines Ltd. completed geophysical surveys (magnetic and EM) on 12 claims. 1978: Camindex Mines Ltd. was granted a 21-year lease on the property.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63A.225 | 31D16SE0043 | 31D16SE0043 |
| 15 | 31D09NE0007 | 31D09NE0007 |
| 26 | 31D09NE0006 | 31D09NE0006 |
| 2.1415 | 31D09NE0009 | 31D09NE0009 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Contains |
|---|
Dec 17, 2020 (Sheree Hinz) - The Zenmac property lies on the border between the Anstruther and Burleigh granite gneiss masses. The property is largely underlain by granite gneiss and granite pegmatite or pegmatitic granite with inclusions of metasediments. The latter are biotite amphibolite, biotite paragneiss, garnet biotite gneiss, and very rarely, marble. The gneisses strike northeast and dip 25 to 50 SE.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Molybdenite | Economic | Ore | ||||
| 3 | Uranothorite | Economic | Ore | ||||
| 4 | Zircon | Economic | Ore |
Dec 17, 2020 (Sheree Hinz) - Uranium mineralization in pegmatite dikes and sills of epigenetic origin. Exploration by drilling of the fault zone area indicated four uranium-bearing lenses in granite pegmatite adjacent to a garnet gneiss band. Rare accessories present are zircon, molybdenite, and chalcopyrite. The uranium-bearing mineral is not always visible, but orange uranothorite was recognized as grains in biotite, and black uranothorite in quartz. Two drill holes examined by Satterly (1955) returned assays of 0.08% U3O8 and 0.321% U3O8. Reserves: 718,482 tons when the grade is 1.33 lbs U3O8/ton (Northern Miner August 1, 1968) 251,000 tons grading 2.01 lbs U3O8/ton indicated; 102,000 tons grading 1.88 lbs. U3O8/ton inferred; 53,000 tons grading 0.4 lbs. U3O8/ton dilution (SMDR 341).
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Zenmac | 1981 | Unclassified | 650000 | OFR5635, p. 155 | 0.6 kg U3O8/tonne (Not NI 43-101 compliant) | Uranium 0.06 % |
Publication - Catalogue of Canadian minerals [1980]; Geological Survey of Canada, Paper 80-18
Publication Number: Paper 80-18 Page: 375 Date: 1983
Author: Traill, R.J.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/119519
Part - Radioactive mineral occurrences in the Bancroft area
Publication Number: ARV65-06 Page: 154-155 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: 56 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: 461-462 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: 154-156 Date: 1987
Author: Menard A.G.
Publisher Name: Ontario Geological Survey
Location:
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