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Ontario Geological Survey
Permanent Link to this Record:
MDI31F10NE00002
| Record Name(s) | Sample 89 ROSS-04 - 1989, Study Area 33 - 1986 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jun-27 |
| Date Last Modified | 2022-Feb-23 |
| Created By | |
| Revised By |
Primary Commodities: Marble (high purity/flux)
Secondary Commodities: Dolomite (Building Stone)
Township or Area: Ross
Latitude: 45° 41' 2.64" Longitude: -76° 44' 16.35"
UTM Zone: 18 Easting: 364669 Northing: 5060415 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F10NE
Point Location Description: location of sample 89 ROSS-04
Location Method: Data Compilation
Access Description: Hwy 17 to Hwy 653, 13 km north of Renfrew; Highway 653 east to County Road 7 (0.5 km); County Road 7 north to the four-way stop at Millars Corner. Dolomitic marble is exposed from 3.7 to 5.2 km east of Millars Corner on the Grants Settlement Road.
circa 1986: sampling by Ontario Geological Survey
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Dolomite Marble | 1 | Is |
|---|
May 13, 2013 (A Wilson) - A narrow band of fairly pure dolomitic marble trending roughly parallel to the road. Flanking both sides is highly siliceous dolomitic marble containing abundant quartz and tremolitic veins and knots up to 0.5 mi thickness. The dolomitic marble is fine-grained and white in colour, with a granular, massive texture. Acicular tremolite occurs as a minor consistuent within this unit. The width of the band is approximately 50m.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Dolomite | Economic | Ore | ||||
| 2 | Quartz | Economic | Gangue | ||||
| 3 | Tremolite | Economic | Gangue |
May 13, 2013 (A Wilson) - A grab sample collected from the site assayed 0.70% SiO2, 0.01% Al2O3, 0.19% Fe2O3, 21.3 MgO, 30.7% CaO and has a brightness of 88.1%.
Mono - Precambrian dolomite resources in southeastern Ontario
Publication Number: OFR5712 Scale: Date: 1990
Author: LeBaron P.S., MacKinnon A.
Publisher Name: Ontario Geological Survey
Location:
Article - Eastern Ontario refractory potential
Publication Number: MP132.073 Scale: Date: 1997
Author: MacKinnon A.
Publisher Name: Ontario Geological Survey
Location:
Map - Cobden, Precambrian geology
Publication Number: M2460 Scale: 1:100,000 Date: 1983
Author: Lumbers S.B.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office