Ontario Geological Survey
Permanent Link to this Record:
MDI31F04NW00124
| Record Name(s) | Peter-Rock - 1986, Peter-Rock East - 1986 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1986-May-20 |
| Date Last Modified | 2023-Jun-16 |
| Created By | |
| Revised By |
Primary Commodities: Uranium, Thorium
Secondary Commodities: Rare Earth Elements
Township or Area: Monteagle
Latitude: 45° 9' 34.86" Longitude: -77° 52' 53.75"
UTM Zone: 18 Easting: 273518.224 Northing: 5004729.544 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F04NW
Point Location Description: Precise
Location Method: Conversion from MDI
Access Description: A bush road leading east from Highway 62 provides access. This road begins just south of Hickey Settlement, seven miles north of Bancroft (MDC 23, p112).
1954-55: Peter-Rock Mining Company Limited performed a scintillometer survey in 1954 and in 1955. Radioactive showing or anomalies were drilled, 10 DDH for a total of 868 feet (MDC 23, p113).
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Contains |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Allanite | Economic | Ore | ||||
| 10 | Euxenite | Economic | Ore | ||||
| 15 | Pyrochlore | Economic | Ore | ||||
| 20 | Uranothorite | Economic | Ore |
Jun 16, 2023 (Therese Pettigrew) - In the south half of Lot 29, Concession VIII, a low cliff face exposes a 3-foot dike of medium-grained, graphic granite pegmatite with a sheared zone 3-12 inches above the footwall, very rich in coarse disseminated magnetite in grains 1/8 -1 1/2 inches across. Geiger readings were 10X with spot-highs of 25X. Accessory minerals present are magnetite, biotite, zircon, allanite (altered), and black-to-orange-brown uranothorite. The pegmatite dike strikes N700E and dips 450N. The country rock is hornblende gneiss or hybrid granite gneiss which strikes N550W and dips 550SW. The drilling program disclosed a number of narrow pegmatite dikes. The dikes in all the holes are granite pegmatite with variable amounts of accessory pyroxene, biotite, magnetite, pyrite, zircon, and very rarely, orange or black uranothorite. Geiger readings on pegmatite core were 1X - 3X with rare highs to 5X A sample of grey granite, one of the country rocks, was assayed for its uranium content. The results revealed that it is of quartz diorite composition and it contained the following trace elements: U <2 ppm, Th 15 ppm, Cu 20 ppm, Zn 50 ppm (Masson and Gordon, 1981).
Part - Radioactive mineral occurrences in the Bancroft area
Publication Number: ARV65-06 Page: 140 Date: 1998
Author: Satterly J., Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Pegmatite mineral resources of Ontario
Publication Number: IMR021 Page: 20 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: MDC004 Page: 43-44 Date: 1967
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
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:
MonoMap - Radioactive mineral deposits of the Pembroke-Renfrew area
Publication Number: MDC023 Page: 112-13 Date: 1981
Author: Masson S.L., Gordon J.B.
Publisher Name: Ontario Geological Survey
Location:
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: OFR5311 Page: 286 Date: 1981
Author: Gordon J.B., Rybak U.C., Robertson J.A.
Publisher Name: Ontario Geological Survey
Location:
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