Ontario Geological Survey
Permanent Link to this Record:
MDI31F06NE00045
| Record Name(s) | Southeast of Brock Lake - 1981 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jun-24 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Apatite (Gemstones), Mineral Specimen
Township or Area: Sebastopol
Latitude: 45° 28' 58.74" Longitude: -77° 10' 14.78"
UTM Zone: 18 Easting: 330353.997 Northing: 5038897.997 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F06NE
Point Location Description: Approximate
Location Method: Data Compilation
Access Description: 2.0 km ESE of Brock Lake. About 1.3 km south of Hwy 512, a very rough road from the bush road leads eastwards to an apatite showing, a distance of 300 m.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Quartz Monzonite | 1 | Host |
|---|
Jun 16, 2011 (D Laidlaw) - A 1 m massive apatite zone occurs within quartz monzonite. Quartz pyroxene vines and calcite veins also were observed in the outcrop.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Apatite | Economic | Ore | ||||
| 2 | Calcite | Economic | Ore |
MonoMap - Geology of the Clontarf area, Renfrew County
Publication Number: R209 Scale: Date: 1981
Author: Themistocleous S.G.
Publisher Name: Ontario Geological Survey
Map - Clontarf, Renfrew County
Publication Number: M2433 Scale: 1:31,680 Date: 1980
Author: Themistocleous S.G.
Publisher Name: Ontario Geological Survey
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