Ontario Geological Survey
Permanent Link to this Record:
MDI42I11NE00002
| Record Name(s) | Gypsum Mountain - 1904 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1981-May-22 |
| Date Last Modified | 2022-Oct-07 |
| Created By | |
| Revised By |
Primary Commodities: Gypsum
Secondary Commodities: Limestone (Chemical/Flux)
Township or Area: Stapells
Latitude: 50° 42' 25.48" Longitude: -81° 4' 22.07"
UTM Zone: 17 Easting: 494859.86 Northing: 5617254.181 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42I11NE
Point Location Description: General--roughly center of area of gypsum outcrop
Location Method: Conversion from MDI
Access Description: Gypsum Mountain is a low outcropping of gypsum surrounded by muskeg on the east boundary of Stapells Twp.midway between the Abitibi and French rivers and 12 miles southeast of Moose River Crossing. (IMR 18, p.59) In general, the area can be accessed in the summer by train (ONR line from Cochrane to Moosonee, Ontario), river (canoe or inflatable boat), or helicopter. In winter, access is by winter roads, train and helicopter. Best acces to Gypsum Mountain is by helicopter. (OGS OFR 5728, pp.3,5, 40) As of 1990, site had been identified as an Area of Natural and Scientific Interest (ANSI) by the Ont. Ministry of Natural Resources to preserve the karst topography and natural gypsum bridges. Resource development may be permitted only if the protected features are maintained. (IMBP 12, p.15).
1964--Ontario Dept of Mines: Channel sampling and analyses 1988--Ontario Geological Survey: Mapping and sampling, geochemistry, thin section analyses.
Province: Paleozoic and Mesozoic Basins
Subprovince: Moose River Basin
Dec 07, 2005 (D Draper) - Gypsum occurrences of the Moose River Basin are considered part of the lower Middle Devonian Moose River Formation. (GSC MEM 379, p.90). (Q) The gypsum [here] is for the most part of excellent quality, more uniform in texture than that of the Moose river, and consists almost entirely of whitish, saccharoidal, slightly greyish rusty crytstalline gypsum. True thickness is not known, but beds up to 20 feet (5-6m) high were frequently seen. General attitude of beds is horizontal. (AR 13, p.158) Surface extent of exposure is 6900 feet by 1050 feet (approx 5 sq km) and beds can be traced for a further 3/4 of mile to the southeast. (AR Vol 37-6, p.42).
| Rock Type | Rank | Composition | Texture | Relationship | Gypsum | 1 | Host |
|---|
Dec 07, 2005 (D Draper) - [Q]: At center of occurrence, the gypsum is uniform, massive, white, and fine- to medium-grained; it has a friable sugary texture composed of interlocking gypsum laths. Weathered surfaces are scaly and grey to buff in colour. Impurities consist of rare thin lenses of brown limestone and wavy, paper-thin, grey-black laminae. Selenite.rarely exceeds 5% of the mass. (IMR 18, p.60) Gypsum breccia or interbeds of limestone were not observed until Bezys 1990 study. (OFR 5728, p.41).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gypsum | Economic | Ore |
Dec 07, 2005 (D Draper) - Ont. Dept. of Mines analyzed 2 channel samples taken in 1964; these returned values of 88.05 and 93.31% gypsum. (IMR 18, p.61) 1990 geochemisal analyses of 4 samples returned a value of 96.30% gypsum (OFR 5728, p.105).
File - Resident Geologist files T-2886
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Onakawana sheet, geological compilation series
Publication Number: P0375 Scale: 1:126,720 Date: 1997
Author: Bennett G., Brown D.D., George P.T.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gypsum in Ontario
Publication Number: IMR018 Page: 59-62 Date: 1997
Author: Guillet G.R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Moose River Basin, District of Cochrane, Ontario
Publication Number: ARM37P Scale: 1:506,880 Date: 1997
Author: Dyer W.S.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Operation Kapuskasing
Publication Number: MP010 Page: 86 Date: 1967
Author: Bennett G., Brown D.D., George P.T., Leahy E.J., Guillet G.R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geology, Hudson Bay Lowlands, Manitoba, Ontario, Quebec and District of Keewatin
Publication Number: Map 17-1967 Scale: 1:1,013,760 Date: 1967
Author: Norris, A W; Sanford, B V; Bostock, H H
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/107628
Map - Moosonee sheet, geological compilation series, Cochrane District
Publication Number: M2171 Scale: 1:253,440 Date: 1969
Author: Bennett G., Brown D.D., George P.T., Guillet G.R.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Economic resources of Moose River Basin
Publication Number: ARV13-01.009 Page: 158 Date: 1998
Author: Bell J.M.
Publisher Name: Ontario Bureau of Mines
Location:
Part - Geology and economic deposits of the Moose River basin
Publication Number: ARV37-06.001 Page: 42 Date: 1998
Author: Dyer W.S.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Geology and bibliography of the Hudson Bay Lowlands, Operation Winisk; Geological Survey of Canada, Paper 67-60
Publication Number: Paper 67-60 Page: 43 Date: 1968
Author: Sanford, B V; Norris, A W; Bostock, H H; Bell, R T
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100932
Publication - Devonian stratigraphy of the Hudson Platform; Geological Survey of Canada, Memoir no. 379
Publication Number: GSC Mem 379 Page: 53, 87, 91 Date: 1975
Author: Sanford, B V; Norris, A W
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/127033
Compend - Mesozoic geology and mineral potential of the Moose River Basin
Publication Number: S021 Page: 152, 175, 178 Date: 1982
Author: Telford P.G., Verma H.M.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geology of gypsum deposits in the James Bay Lowland
Publication Number: OFR5728 Page: 40 Date: 1990
Author: Bezys R.K.
Publisher Name: Ontario Geological Survey
Location:
Mono - Gypsum in northern Ontario: resources and market potential
Publication Number: IMBP012 Date: 1997
Author: Hains Technology Assoc., Bezys R.K., Muir J.E.
Publisher Name: Ontario Ministry of Northern Development and Mines
Location:
Map - Moosonee sheet, geological compilation series, Cochrane District
Publication Number: M2171 Scale: 1:253,440 Date: 1969
Author: Bennett G., Brown D.D., George P.T., Guillet G.R.
Publisher Name: Ontario Dept. of Mines
Location:
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