Ontario Geological Survey
Permanent Link to this Record:
MDI31F10SE00013
| Record Name(s) | Park Reserve Outcrop - 1989, Ross-03 - 1989 |
|---|---|
| Related Record Type | Simple |
| Record Status | Prospect |
| Date Created | 1991-Jun-27 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Dolomite (flux/filler)
Township or Area: Ross
Latitude: 45° 36' 38.43" Longitude: -76° 42' 11.33"
UTM Zone: 18 Easting: 367200 Northing: 5052203 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F10SE
Point Location Description: centre of polygon on Figure 32 OFR5712
Location Method: Data Compilation
Access Description: Highway 17 to Highway 653, 13 km north of Renfrew; east on Hwy 653 to County Road 7, and east on Road 7 about 5.5 km to a T-intersection; about 1 km south on the concession road to an old farmhouse; the dolomite outcrop area is in the field behind the farm house.
Occurrence lies within a park reserve area which is withdrawn from disposition.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Dolomite Marble | 1 | Is |
|---|
May 11, 2013 (A Wilson) - The outcrop area displays a 30-40 m wide band of complexly folded high-purity dolomitic marble. The dolomite is overlain and underlain by siliceous dolomite which contains up to 25% combined quartz, tremolite and serpentine as coarse knots and bands. The high-purity dolomite contains about 1% combined yellowish chondrodite, pale green talc and traces of fine graphite.
| 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 | Serpentine | Economic | Gangue | ||||
| 4 | Tremolite | Economic | Gangue |
May 11, 2013 (A Wilson) - A sample of the dolomite assayed 0.73% SiO2, 0.04% Al2O3, 0.10% Fe2O3, 21.3% MgO, 30.8 CaO with a brightness of 90.6%.
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Ross-03 | 1989 | Unclassified | 18000000 | OFR5712 |
Mono - Precambrian dolomite resources in southeastern Ontario
Publication Number: OFR5712 Scale: Date: 1990
Author: LeBaron P.S., MacKinnon A.
Publisher Name: Ontario Geological Survey
Map - Cobden, Precambrian geology
Publication Number: M2460 Scale: 1:100,000 Date: 1983
Author: Lumbers S.B.
Publisher Name: Ontario Geological Survey
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