Ontario Geological Survey
Permanent Link to this Record:
MDI31C15SE00202
| Record Name(s) | Northwest Silver Lake Corundum - 1985 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1993-May-19 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Corundum, Mineral Specimen
Township or Area: South Sherbrooke
Latitude: 44° 49' 55.92" Longitude: -76° 30' 8.35"
UTM Zone: 18 Easting: 381249 Northing: 4965408 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C15SE
Point Location Description: corundum occurrence southwest of McGowan Lake
Location Method: Data Compilation
Access Description: Adjacent to McGowan Lake
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Frontenac
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Anorthosite | 1 | Medium-Grained | Host |
|---|
Sep 18, 2015 (A Wilson) - Medium-grained anorthosite with porphyroblastic, glomerporphyroblastic phases anorthosite intrude into mafic to silicic migmatites and antatectic gneisses.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Corundum | Economic | Ore |
Sep 18, 2015 (A Wilson) - The corundum is coarse-grained and euhedral and of interest mainly for mineralogical specimens.
Map - Sharbot Lake, southern Ontario
Publication Number: M2471 Scale: 1:31,680 Date: 1985
Author: Wolff J.M.
Publisher Name: Ontario Geological Survey
MonoMap - Geology of the Sharbot Lake area, Frontenac and Lanark counties, southeastern Ontario
Publication Number: R228 Scale: Date: 1985
Author: Wolff J.M.
Publisher Name: Ontario Geological Survey
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office