Ontario Geological Survey
Permanent Link to this Record:
MDI31F06NW00049
| Record Name(s) | Rockingham Mines Occurrence - 1955 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1986-Mar-04 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Thorium, Uranium
Township or Area: Brudenell
Latitude: 45° 25' 23.28" Longitude: -77° 26' 42.18"
UTM Zone: 18 Easting: 308716.999 Northing: 5032865.002 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F06NW
Point Location Description: approximate
Location Method: Data Compilation
Access Description: Immediately E of a small lake and SW of Gorman Lake. A road heading E from Rockingham ends after about 6 Km at a T-junction. About 300 m S of this junction a bush road leads E then N to the occurrence.
1955: Rockingham Mines Ltd. - stripping, pitting, trenching, DD
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Biotite-Diopside | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Feldspathic | Contains |
Jun 24, 2011 (A Wilson) - Apatite-biotite-diopside marble lies between quartzo-feldspathic gneisses. The overlying gneisses are rusty due to the presence of pyrite and pyrrhotite (5-15%) Interlayered with the rusty feldspathic gneiss are thin pyroxenite-carbonate horizons which frequently contain apatite.
| 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 | Apatite | Economic | Ore | ||||
| 4 | Biotite | Economic | Ore | ||||
| 5 | Diopside | Economic | Ore | ||||
| 6 | Pyrite | Economic | Ore |
Jun 24, 2011 (A Wilson) - A grab sample collected from a waste pile by Rockingham Mines Ltd. assayed 0.172% U3O8 and 0.17% ThO2. A grab sample from the discovery pit assayed 1.3% U3O8 and 0.09% ThO2. A selected sample from a pit approximately 200 ft. south of the discovery pit assayed 1.37% U3O8 and 0.40% ThO2. Satterly reported a uranothorite crystal from a metapyroxenite skarn which assayed 20.73% U3O8 and 40.37% ThO2.
| Rank | Classification |
|---|---|
| 1 | Skarn |
Publication - Catalogue of Canadian minerals; Geological Survey of Canada, Paper 80-18
Publication Number: Paper 80-18 Page: 315 Date: 1980
Author: Traill, R J
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/119519
MonoMap - Radioactive mineral deposits of the Pembroke-Renfrew area
Publication Number: MDC023 Page: 38-39 Date: 1981
Author: Masson S.L., Gordon J.B.
Publisher Name: Ontario Geological Survey
Location:
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: OFR5311 Page: 577 Date: 1981
Author: Gordon J.B., Rybak U.C., Robertson J.A.
Publisher Name: Ontario Geological Survey
Location:
Mapset - Uranium mineral potential charts for parts of southern Ontario
Publication Number: OFR5260 Page: Chart C Scale: 1:126,720 Date: 1979
Author: Robertson J.A., Bright E.G., Gordon J.B., Springer J.S., MacDonald C.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Brudenell-Raglan area, County of Renfrew, Ontario
Publication Number: M1953-02 Scale: 1:63,360 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Barry's Bay, Precambrian geology
Publication Number: M2461 Scale: 1:100,000 Date: 1983
Author: Lumbers S.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, radioactive mineral deposits of the Pembroke-Renfrew area, southern Ontario
Publication Number: P2210 Scale: 1:126,720 Date: 1980
Author: Masson S.L., Gordon J.B., Storey C.C.
Publisher Name: Ontario Geological Survey
Location:
Part - Radioactive mineral occurrences in the Bancroft area
Publication Number: ARV65-06 Date: 1998
Author: Satterly J., Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
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