Ontario Geological Survey
Permanent Link to this Record:
MDI31C11SW00051
| Record Name(s) | Young Talc - 2000, Queensborough Detailed Study Area - 2000 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1990-Nov-26 |
| Date Last Modified | 2022-Mar-01 |
| Created By | |
| Revised By |
Primary Commodities: Talc
Township or Area: Elzevir
Latitude: 44° 36' 13.82" Longitude: -77° 23' 47.43"
UTM Zone: 18 Easting: 309820.717 Northing: 4941737.062 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C11SW
Point Location Description: Point 1.75 km NE of Queensborough.
Location Method: Conversion from MDI
Access Description: Accessible from a concession road which runs N from Hastings Road 20, about 2.5 km E of Queensborough. A farm road, passable by 4 x 4, runs W from this concession road about 2 km N of the turnoff. A trail from the end of this road leads W to the detailed study area.
This area of mineralization was initially discovered by C.R. Young. . In 1983 a regional reconnaissance programme for talc was designed to link the Cooper area and the Queensborough Road talc occurrence, to the S, which had been originally mapped in 1982. A detailed study was made in the Queensborough talc zone - a 500 x 500 m area was mapped at 1:2000 on a 50 x 50 m flagged grid. 1:10,000 scale mapping was undertaken N, S and W of the grid to determine limits to the talc zones (1985). See also ' Byer Talc ', MDI31C11SW00042.
Province: Grenville
Geological Age: Mesoproterozoic
Dec 07, 2005 (C Papertzian) - An 8 km belt along the contact between Tudor Metavolcanics and the Elzevir Batholith (through parts of Madoc and Elzevir townships) hosts discontinuous zones of talc mineralization. These zones are relatively small yet of similar grade and mineralogy. Exposure is poor with creeks and beaver swamps between ridges of amphibolite and talc. Magnetite is a common accessory with most talcose deposits in the area, and mag surveys may prove helpful in delineating their location. In the Queensborough detailed study area, a zone of talcose, highly altered mafic to ultramafic rocks lies in an embayment within the W margin of the Elzevir Batholith. About 60 % of the area is talcose. The talc is fairly pure and grades vary from 30->80 %, with associated chlorite, carbonate, serpentine and magnetite (a talc-chlorite-carbonate-magnetite schist). It is fine to medium-grained, massive to poorly foliated and weathers to a medium green-grey. The talc mineralization appears to be more extensive than the mapped area.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Chlorite | Economic | Ore | ||||
| 10 | Dolomite | Economic | Ore | ||||
| 15 | Magnetite | Economic | Ore | ||||
| 20 | Serpentine | Economic | Ore | ||||
| 25 | Talc | Economic | Ore |
Mono - Talc in the Tudor Formation, Grenville supracrustal series, southeastern Ontario
Publication Number: OFR5530 Scale: Date: 1985
Author: Dillon E.P., Barron P.S.
Publisher Name: Ontario Geological Survey
Location:
Mono - Talc in southeastern Ontario
Publication Number: OFR5714 Scale: Date: 1989
Author: LeBaron P.S., van Haaften S.
Publisher Name: Ontario Geological Survey
Location:
Article - Geology of the Queensborough Road talc occurrence
Publication Number: MP106.010S Scale: Date: 1997
Author: Verschuren C.P.
Publisher Name: Ontario Geological Survey
Location:
Mono - Soapstone in Ontario
Publication Number: OFR5764 Scale: Date: 1991
Author: Gerow M.C., Sherlock E.J., Bellinger J.A.
Publisher Name: Ontario Geological Survey
Location:
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