Ontario Geological Survey
Permanent Link to this Record:
MDI31D09NW00086
| Record Name(s) | New Cavendish - 2000, Cavendish - 1953, Amalgamated Rare Earths Ltd. - 1957 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1990-Oct-30 |
| Date Last Modified | 2023-Jan-06 |
| Created By | |
| Revised By |
Primary Commodities: Uranium, Thorium
Township or Area: Cavendish
Latitude: 44° 44' 38.85" Longitude: -78° 20' 16.93"
UTM Zone: 17 Easting: 710736 Northing: 4957974 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D09NW
Point Location Description: Point 1.5 km northwest of Catchacoma.
Location Method: Data Compilation
Access Description: 18.5km north of Flynns Turn, turning west on rough road, 1.3km. Rough trail (turn left near site), leads to site of capped shaft overlooking tailings in lake at lower elevation to the north.
1943: Cardiff Fluorite Mines Limited: stripping and blasting to investigate fluorite potential. 1947-51: South Shaft-N½ lot A,concession XVII inclined shaft sinking (311 ft.); 2 adits; DD-6-374 ft.; North Zone S½ lot 1 trenching, stripping, diamond driliing,. 5 trenches over 200 ft. ( N-S ). Total DD-179-52,482 ft.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 31D16SW2002 | 31D16SW2002 | 31D16SW2002 |
| 2.41738 | 20000004208 | 20000004208 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Elzevir
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Leucogranite | Contains |
|---|---|---|---|---|
| Paragneiss | 2 | Biotite | Contains | |
| Marble | 3 | Footwall | ||
| Granite | 4 | Leucogranite | Host |
Jan 17, 2017 (A Wilson) - Over a north-south length of 200 foot five trenches expose leucogranite or leucogranite pegmatite with coarse, often abundant, accessory magnetite, and titanite, allanite, zircon, uranothorite, uraninite and uranophane. Remnant bands of biotite paragneiss in the trenches strike N. 10 - 15 ºE., and dip 45 - 70º E. The western part of the property is underlain by marble striking N10 E and dipping 40-60 E. The marble is overlain by scapolite amphibolite, biotite amphibolite and biotite paragneiss in a band 300 to 500 feet wide. These gneisses are syenitized and grade into hybrid syenite gneiss to the east. They are intruded by granitic and syenitic pegmatites.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Uraninite | Economic | Ore | ||||
| 2 | Uranothorite | Economic | Ore | ||||
| 3 | Allanite | Economic | Ore | ||||
| 4 | Zircon | Economic | Ore | ||||
| 5 | Magnetite | Economic | Ore | ||||
| 6 | Titanite | Economic | Ore | ||||
| 7 | Uranophane | Economic | Ore |
Jan 17, 2017 (A Wilson) - Geiger readings in those trenches are mostly greater than 10,000 the best being 26,000 across 7 foot. Spot-highs greater than 50,000 were recorded in two of the trenches. The higher geiger readings are correlated with more intense shattering in the granitic rock, and more abundant magnetite. Mineralization occurs within irregular calcite - fluorite - uraninite veins in the gneisses near the marble contact. The veins also contain biotite, apatite, scapolite and pyroxene, and tend to be banded. Several radioactive zones occur along the same strike. The South Zone comprises the original "B" and "C" zones; the North, "A", "E" and "F".
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| A.S. Bayne and Company | 1956 | Indicated Mineral Resource | 1108401 | ARV65-6 p.159-160 | A.S. Bayne and Company estimated in the shaft area, 1,108,401 tonnes of indicated ore grading 0.101% U3O8; Drilled reserves of 395,000 at 0.096% U3O8 | Uranium 0.101 % |
Mono - Some radioactive mineral occurrences in the counties or districts of Frontenac, Haliburton, Hastings, Manitoulin, Nipissing, Parry Sound, Peterborough, and Renfrew
Publication Number: OFR5057 Page: 74 Date: 1997
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Part - Radioactive mineral occurrences in the Bancroft area
Publication Number: ARV65-06 Page: 159-161 Date: 1998
Author: Satterly J., Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
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
Map - Precambrian Geology of Cavendish Township and Environs, Grenville Province
Publication Number: P3605 Scale: 1:20,000 Date: 2010
Author: Easton R.M.
Publisher Name: Ontario Geological Survey
Location:
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