Ontario Geological Survey
Permanent Link to this Record:
MDI31F06SW00011
| Record Name(s) | Dupuis Creek - 1981, Concession 15, Lot 24 - 1953, Universal Light Metals Company - 1944 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1985-Nov-20 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Graphite
Township or Area: Lyndoch
Latitude: 45° 19' 17.3" Longitude: -77° 23' 37.24"
UTM Zone: 18 Easting: 312400.003 Northing: 5021449.998 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F06SW
Point Location Description: Precise
Location Method: Field Visit with GPS
Access Description: The pit is on the north side of a small knoll just west of Dupuis Creek. It is reached by traversing for 234 m in the direction 248 deg from a point on an old logging road 334 m west of the Quadeville-Letterkenny Road. The road is 1020 m north of Highway 515.
Pre-1944: pitting
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Graphitic | Host |
|---|---|---|---|---|
| Paragneiss | 2 | Adjacent |
Aug 02, 2011 (A Wilson) - Graphitic marble and paragneiss are interbedded. The graphite-rich bands range from a few inches to 2 feet in width. At the pit, the marble and paragneiss are interlayered, trending 070/55S. The marble is rusty weathering and splits readily into 1-3 cm thick layers. Graphite is concentrated along these breaks between the layers. Much of the marble contains fine flakes of phlogpite and graphite. There is an increase in graphite in the rocks in the vicinity of the pit, but is mode of occurrence is similar to that found elsewhere in the area.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Graphite | Economic | Ore | ||||
| 2 | Mica | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore |
Aug 02, 2011 (A Wilson) - Flakes of graphite up to 1/8 inch in size made up to 5-10% of the rock in richer bands. Graphite flakes up to 3 mm are parallel to the layering/gneissosity. The OGS collected specimens from the site for trace element geochemistry. A typical analysis assayed: 33 ppm Pb, 620 ppb Sr, 128 ppm Zn, 3 ppm As, 350 ppm Ba, 80 ppm Cu, 90 ppb Hg, 33 ppm Li, 480 ppm Mn, 37 ppm Ni, 100 ppm V and >300 ppm B.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Map - Barry's Bay, Precambrian geology
Publication Number: M2461 Scale: 1:100,000 Date: 1983
Author: Lumbers S.B.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Brudenell-Raglan area
Publication Number: ARV62-05 Page: 71 Date: 1998
Author: Hewitt D.F., Carlson H.D.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Graphite in Ontario
Publication Number: IMR020 Page: 61-62 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Industrial minerals of the Pembroke-Renfrew area, part 2
Publication Number: MDC022 Page: 71-72 Date: 1981
Author: Storey C.C., Vos M.A.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Industrial minerals of the Algonquin region
Publication Number: OFR5425 Page: 144 Date: 1983
Author: Martin W.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Radioactive mineral deposits of the Pembroke-Renfrew area
Publication Number: MDC023 Page: 29 Date: 1981
Author: Masson S.L., Gordon J.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Brudenell-Raglan area, County of Renfrew, Ontario
Publication Number: M1953-02 Scale: 1:63,360 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
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