Ontario Geological Survey
Permanent Link to this Record:
MDI31C15SE00111
| Record Name(s) | Rock Lake-Deer Lake Occurrence - 1927, M.J. Strong Farm - 1927 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jun-25 |
| Date Last Modified | 2022-May-24 |
| Created By | |
| Revised By |
Primary Commodities: Feldspar (Nonmetals), Corundum
Township or Area: South Sherbrooke, South Sherbrooke, South Sherbrooke, South Sherbrooke, Oso, South Sherbrooke, Oso, Oso, South Sherbrooke, South Sherbrooke, South Sherbrooke, Oso, South Sherbrooke
Latitude: 44° 46' 51.96" Longitude: -76° 33' 46.95"
UTM Zone: 18 Easting: 376340 Northing: 4959822 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C15SE
Point Location Description: Precise
Location Method: Data Compilation
Access Description: The corundum/feldspar strikes in a southwesterly direction parallel to and along the concession line from lot 12 into Oso township, wholly within concession VI.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Frontenac
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Anorthositic Gabbro | Host |
|---|
Sep 17, 2015 (A Wilson) - The Lavant and Lanark-Oso mafic intrusives are composed of medium to coarse-grained gabbro and medium to coarse-grained anorthositic gabbro, and gabbroic anorthosite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Corundum | Economic | Ore | ||||
| 2 | Anorthite | Economic | Ore | ||||
| 3 | Pyroxene | Economic | Gangue | ||||
| 4 | Biotite | Economic | Gangue | ||||
| 5 | Ilmenite | Economic | Gangue |
Sep 17, 2015 (A Wilson) - In outcrop, excellently formed, coarse-grained, euhedral corundum can be found. The corundum, is limited to discrete zones. Corundum mineralization occurs in the anorthosite phases of the early mafic intrusives. The corundum is coarse-grained and euhedral and of interest mainly for mineralogical specimens. The corundum occurs as thick tabular crystals of a pearl grey to white in colour, which are uniform in size, being about ½ inch in diameter and up to 1 inch in length
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Book - Abrasives, pt. 2 Corundum and Diamond, p.19
Publication Number: No. 675 Date: 1927
Author: V.L. Eardley-Wilmot
Publisher Name: DEMR/CANMET
Location:
MonoMap - Geological notes for maps nos. 2053 and 2054, Madoc-Gananoque area
Publication Number: S012 Page: 25 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Sharbot Lake area, Frontenac and Lanark counties, southeastern Ontario
Publication Number: R228 Page: 62, 64 Date: 1985
Author: Wolff J.M.
Publisher Name: Ontario Geological Survey
Location:
Book - Mineral Occurrences of Lanark (unpublished)
Publication Number: Page: 40 Date: 1944
Author: Satterly, J.
Publisher Name: Ontario Department of Mines
Location: Tweed RGP
Map - Sharbot Lake, southern Ontario
Publication Number: M2471 Scale: 1:31,680 Date: 1985
Author: Wolff J.M.
Publisher Name: Ontario Geological Survey
Location:
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