Ontario Geological Survey
Permanent Link to this Record:
MDI31L07SW00009
| Record Name(s) | Bobjo Mines Ltd. - 1955, Molybdenum Corp. Occurrence - 1955, O'Brien and Fowler Property - 1925 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1985-Nov-26 |
| Date Last Modified | 2023-Jun-09 |
| Created By | |
| Revised By |
Primary Commodities: Uranium, Feldspar (Nonmetals), Niobium
Secondary Commodities: Scandium, Yttrium, Rare Earth Elements
Township or Area: Calvin
Latitude: 46° 16' 54.12" Longitude: -78° 56' 1.6"
UTM Zone: 17 Easting: 659177 Northing: 5127422 UTM Datum: NAD83
Resident Geologist District: Sudbury
NTS Grid: 31L07SW
Point Location Description: Precise
Location Method: AMIS Site Visit
Access Description: Proceed east from Rutherglen on hwy 17 for 8.4kms and turn left into driveway and proceed to barn and park. Walk at N88 degrees for 310m to pit no.3.
1900: A. Ryan - feldspar production. 1925-26: O'Brien and Fowler - mining, 250 tons of felspar shipped. 1950: Molybdneum Corporation of America - optioned property from Bobjo Mines Ltd. - bulk sampling
Province: Grenville
Subprovince: Central Gneiss Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Near |
|---|---|---|---|---|
| Pegmatite | 2 | Contains |
Jun 05, 2009 (A Wilson) - The property is described as a dike of red spar carrying large masses of free quartz and quantitiy of disseminated magnetite. The surrounding host rocks are mapped as massive granites and biotite gneisses. The dike is estimated to have a width of 15 feet striking 60°N. The dike is not well exposed, but could be traced for about 200 feet.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Euxenite | Economic | Ore | ||||
| 2 | Columbite | Economic | Ore | ||||
| 3 | Allanite | Economic | Ore |
Jun 05, 2009 (A Wilson) - The magnetite in the deposit renders the deposit useless for ceramic purposes. The dike consists chiefly of pink microcline and white quartz with some dark red plagioclase (oligoclase?). Crystal masses of microcline up to 1 foot diameter occur and some good-sized masses of quartz occupy the middle of the dike. Small books of whit emica up to 3 inches diameter occur very sparingly. A few nodules up to ¼ inches diameter of euxenite were also found. Bulk samples from test pits in the dikes reportedly have returned 0.10% U3O8, and 0.15, 0.10 and 0.12% niobium and tantalum oxides. Five samples sent to the the ODM lab showe dup to 0.49% U3O8 equivalent and 0.42% U3O8 chemical. A sample of selected euxenite-bearing material showed a spectrographically a content of 0.04% yttrium, 0.02% Nb and < 0.003% scandium.
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
Publication - Feldspar, Canada Mines Branch Publication 731
Publication Number: CMB Pub 731 Page: 51 Date: 1932
Author: Spence, H. S.
Publisher Name: Canada Mines Branch
Location: https://doi.org/10.4095/307887
Book - Canadian deposits of uranium and thorium; Geological Survey of Canada, Economic Geology Series 16
Publication Number: Econ Geol 16 Page: 251 Date: 1962
Author: Lang, A H; Griffith, J W; Steacy, H R
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102450
Publication - A Catalogue of Canadian Minerals; Geological Survey of Canada, Paper 69-45
Publication Number: Paper 69-45 Page: 206 Date: 1972
Author: Traill, R.J.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102924
Publication - Niobium (columbium) and tantalum in Canada; Geological Survey of Canada, Economic Geology Report 29
Publication Number: Econ Geol 29 Page: 118 Date: 1996
Author: Dawson, K.R.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/103996
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: MDC004 Page: 48 Date: 1967
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Compend - Summary of field work, 1972
Publication Number: MP053 Page: 139-143 Date: 1972
Author: Milne V.G., Hewitt D.F.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Columbium (niobium) deposits of Ontario
Publication Number: MDC014 Page: 49 Date: 1971
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Map - Geological series, Mattawa-Deep River area (western half), District of Nipissing
Publication Number: P1196 Scale: 1:63,360 Date: 1976
Author: Lumbers S.B.
Publisher Name: Ontario Division of Mines
Location:
Mono - Pegmatite mineral resources of Ontario
Publication Number: IMR021 Page: 21, 65 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Rare earths of the Grenville Sub-province, Ontario and Quebec; Geological Survey of Canada, Paper 59-10
Publication Number: Paper 59-10 Page: 21-22 Date: 1960
Author: Rose, E.R.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/101254
Publication - Rare-element minerals of Canada; Geological Survey of Canada, Economic Geology Series 11
Publication Number: Econ Geol 11 Page: 189 Date: 1932
Author: Ellsworth, H.V.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102445
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