Ontario Geological Survey
Permanent Link to this Record:
MDI31C10SE00044
| Record Name(s) | Birch Lake Pit - 1947, Concession 5, Lot 1 - 1947 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1990-Sep-24 |
| Date Last Modified | 2022-Feb-18 |
| Created By | |
| Revised By |
Primary Commodities: Graphite
Township or Area: Bedford
Latitude: 44° 32' 36.78" Longitude: -76° 33' 16.32"
UTM Zone: 18 Easting: 376510 Northing: 4933422 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C10SE
Point Location Description: pit
Location Method: AMIS Site Visit
Access Description: On the side of a hill facing Birch Lake.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Frontenac
Geological Age: Mesoproterozoic
Metamorphism Grade: Granulite
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Graphitic, Calcitic | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Graphitic | Adjacent | |
| Quartz Arenite | 3 | Quartzite | Adjacent |
Oct 29, 2013 (A Wilson) - The graphite is contained within a band approximately 1-8 inches in width. Some sections of the band contain sufficient graphite to make the rock almost black in appearance.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Graphite | Economic | Ore |
Oct 29, 2013 (A Wilson) - Graphite is disseminated within the marble on the north wall of the pit.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Part - Geology of the Olden-Bedford area
Publication Number: ARV56-06 Scale: Date: 1997
Author: Harding W.D.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Graphite in Ontario
Publication Number: IMR020 Scale: Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Olden-Bedford area, County of Frontenac, Ontario
Publication Number: M1947-05 Scale: Date: 1997
Author: Harding W.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Precambrian Geology, Tichborne Area
Publication Number: P3442 Scale: 1:50,000 Date: 2001
Author: Easton R.M.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office