Ontario Geological Survey
Permanent Link to this Record:
MDI31F07NW00019
| Record Name(s) | Dudgeon Occurrence - 1977, Norman Dudgeon Property - 1958 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1986-Feb-25 |
| Date Last Modified | 2022-Apr-26 |
| Created By | |
| Revised By |
Primary Commodities: Uranium, Thorium
Township or Area: Admaston
Latitude: 45° 22' 56.17" Longitude: -76° 50' 16.35"
UTM Zone: 18 Easting: 356114.003 Northing: 5027060.001 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F07NW
Point Location Description: approximate
Location Method: Data Compilation
Access Description: Approximately 14.5 km southwest of the town of Renfrew. The occurrence is located on the west side of a gravelled township road, 1.3 km south of the village of Shamrock on Highway 132. The showing crosses the farm (N.Davies) lane north of the barn and about 300 m from the township road.
1958: N. Dudgeon - channel sampling, grab sampling. 1977: Geological Survey of Canada - sampling
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Host |
|---|---|---|---|---|
| Paragneiss | 2 | Contains | ||
| Marble | 3 | Adjacent |
Aug 17, 2011 (A Wilson) - White pegmatite dikes intersected a sequence of marble, siliceous rusty-weathering pyritic gneiss, grey-white biotite gneiss and mafic hornblende-biotiite gneisses. These rocks strike 60-90° and dip 20-30° SE
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Biotite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore |
Aug 17, 2011 (A Wilson) - Chip and grab samples reportedly assayed 0.012% U3O8.(radiometric equivalent). Mineralization as indicated b anomalous radioactivity appears to be disseminated throughout the pegmatite, but in places is concentrated into hot spots which do not differ either structurally or mineralogically from the dike. Samples R77-77-1 and R77-71-3 assayed 2 ppm U3O8.and 10 ppm Th.
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
Publication - Renfrew map-area, Renfrew and Lanark counties, Ontario; Geological Survey of Canada, Paper 51-27
Publication Number: Paper 51-27 Page: 68 Date: 1951
Author: Quinn, H.A.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/101377
MonoMap - Radioactive mineral deposits of the Pembroke-Renfrew area
Publication Number: MDC023 Page: 24-25 Date: 1981
Author: Masson S.L., Gordon J.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Renfrew, Renfrew and Lanark counties, Ontario
Publication Number: Map 67G Scale: 1:63,360 Date: 1951
Author: Geological Survey of Canada
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/109668
Map - Geological series, Renfrew area, eastern part, southern Ontario
Publication Number: P1838 Scale: 1:63,360 Date: 1978
Author: Lumbers S.B., Vertolli V.M.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, radioactive mineral deposits of the Pembroke-Renfrew area, southern Ontario
Publication Number: P2210 Scale: 1:126,720 Date: 1980
Author: Masson S.L., Gordon J.B., Storey C.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Renfrew, Precambrian geology
Publication Number: M2462 Scale: 1:100,000 Date: 1983
Author: Lumbers S.B.
Publisher Name: Ontario Geological Survey
Location:
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: OFR5311 Page: 555 Date: 1981
Author: Gordon J.B., Rybak U.C., Robertson J.A.
Publisher Name: Ontario Geological Survey
Location:
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