Ontario Geological Survey
Permanent Link to this Record:
MDI31F06NE00021
| Record Name(s) | Newfoundout Area - 1981, OGS Sample PM49 - 1981 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1986-Jun-16 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Marble (high purity/flux)
Secondary Commodities: Graphite
Township or Area: Grattan
Latitude: 45° 23' 19.13" Longitude: -77° 6' 25.07"
UTM Zone: 18 Easting: 335065.996 Northing: 5028285.005 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F06NE
Point Location Description: approximate
Location Method: Data Compilation
Access Description: The area may be reached by the road between concessions VI and VII, Grattan Township. The location point is 2.3 km along this road from Davidson's Hill on the Opeongo Road. (MDC 21, p. 28).
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Calcitic | Is |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Quartz-Feldspar | Adjacent |
Jun 09, 2011 (A Wilson) - The marble occurs as scattered outcrops along the road and in the adjacent fields. The outcrops are small and widely separated. The marble is white to light buff in colour and are coarse-grained.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Graphite | Economic | Ore | ||||
| 2 | Phlogopite | Economic | Gangue |
Jun 09, 2011 (A Wilson) - Disseminated graphite flakes constitute approximately 2% of the rock. The graphite ranges in size from 2-4 mm. Disseminated phlogopite is more evident along the road in Sebastopol Township. The phlogopite also appears as flakes ranging from 1-3 mm in size. Grab sample PM 49 returned the following analysis: 1.27% SiO2, 0.2% Al2O3, 0.3% Fe2O3, 3.6% MgO, 50.6% CaO and has a brightness of 65.5.
MonoMap - Industrial minerals of the Pembroke-Renfrew area, part 1: marble
Publication Number: MDC021 Scale: Date: 1981
Author: Storey C.C., Vos M.A.
Publisher Name: Ontario Geological Survey
MonoMap - Industrial minerals of the Algonquin region
Publication Number: OFR5425 Scale: Date: 1983
Author: Martin W.
Publisher Name: Ontario Geological Survey
Map - Geological series, marbles of the Pembroke-Renfrew area, southern Ontario
Publication Number: P1980 Scale: 1:126,720 Date: 1979
Author: Vos M.A., Storey C.C.
Publisher Name: Ontario Geological Survey
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