Ontario Geological Survey
Permanent Link to this Record:
MDI31D15SW00022
| Record Name(s) | Cedar Lake Occurrence - 2013, Sludge Lake Occurrence - 1984 |
|---|---|
| Related Record Type | Simple |
| Record Status | Occurrence |
| Date Created | 1991-Feb-20 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Graphite
Township or Area: Lutterworth, Lutterworth
Latitude: 44° 48' 49.08" Longitude: -78° 47' 20.08"
UTM Zone: 17 Easting: 674832 Northing: 4964626 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D15SW
Point Location Description: graphite occurrence on northeast shore of Cedar Lake
Location Method: Data Compilation
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Tectonic Breccia | Host |
|---|---|---|---|---|
| Marble | 2 | Dolomitic | Massive | Adjacent |
Nov 05, 2013 (A Wilson) - The Cedar Lake occurrence lies adjacent to the margin of a large block of dolomite in the Denna Lake Structural Complex. It is possible that this localization of graphite occurrences is due to the migration of carbon from organic structures within the dolomite block, or it is related to faulting and shearing along the margins of the block.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Graphite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore |
Nov 05, 2013 (A Wilson) - Graphite occurs as 1-3 mm sized flakes. The marble contains 1.0% C.
MonoMap - Precambrian geology, Digby-Lutterworth area
Publication Number: R269 Scale: Date: 1990
Author: Easton R.M.
Publisher Name: Ontario Geological Survey
Map - Precambrian geology, Digby-Lutterworth area
Publication Number: M2530 Scale: 1:20,000 Date: 1990
Author: Easton R.M., Van Kranendonk M., Sanderson D.
Publisher Name: Ontario Geological Survey
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