Ontario Geological Survey
Permanent Link to this Record:
MDI31D16NW00196
| Record Name(s) | Roford (Southwest Group) - 1955 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1981-Sep-23 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Uranium, Thorium
Township or Area: Monmouth
Latitude: 44° 56' 56.83" Longitude: -78° 21' 3.37"
UTM Zone: 17 Easting: 708971.63 Northing: 4980712.47 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D16NW
Point Location Description: General
Location Method: Based on Assessment
Access Description: South half of lot 2, conc. 10.
1955: Roford Mines, Limited. - geiger survey and test-pitting. 1973-75: Imperial Oil Limited - geological and scintillometer surveys , radiometric survey.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.1749 | 31D16NW0024 | 31D16NW0024 |
| 2.1418 | 31D16NE0042 | 31D16NE0042 |
| 2.1450 | 31D16NW0039 | 31D16NW0039 |
| 2.1540 | 31D16NW0039 | 31D16NW0039 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Bancroft
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Granite | Contains |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Biotite-Granite | Contains | |
| Skarn | 3 | Skarn | Host |
Feb 05, 2017 (A Wilson) - Uranium and uranothorite occur in mica-pyroxene marble or mica metamorphic pyroxenite adjacent to sills of granite pegmatite or granite. The rocks generally trend northeast and dip southeast. It exposes mica-pyroxene marble overlain to the east by a flat-lying mass, 1-3 feet thick, of leucogranite or granite pegmatite with or without pyroxene. The marble may contain inclusions of pyroxenite or mica metamorphic pyroxenite from a few inches to a foot across,stringers of coarser calcite, and patches of grey feldspar,
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Uraninite | Economic | Ore | ||||
| 2 | Uranothorite | Economic | Ore |
Feb 05, 2017 (A Wilson) - Geiger readings were 5x-12x with spot-highs of 20x-30x the maximum reading being found on the more micaceous sections of the rock. No radioactive mineral was observed. In a clearing just south of this pit a complex of granite, pegmatite, and marble is exposed. The granite gives a geiger reading of 4x. Pit No. 2 is 130 feet east of No. l, and exposes a sheet, 1-2 feet thick, of buff leucogranite or pegmatite overlying mica-pyroxene marble. Geiger readings on the granite were 4x-7x and spot-highs of 12x and 15x at cavities in the marble possibly representing eroded mica masses. Pits Nos. 3 and 4 are 300 feet north of No. 1. These pits expose a complex of leucogranite gneiss, grey siliceous metasediment, and granite pegmatite overlying mica-pyroxene marble and mica metamorphic pyroxenite. The contact between the granite complex and the marble complex is very irregular with minor rolls but is apparently at a low dip to the east. Geiger readings gave spot-highs in the marble complex of 25x-50x. No uranium minerals were found by the author, but he was shown a sample containing ½-inch grain of grey uranothorite.
Part - Radioactive mineral occurrences in the Bancroft area
Publication Number: ARV65-06 Page: 100-102 Date: 1998
Author: Satterly J., Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: MDC004 Page: 31 Date: 1967
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Glamorgan and Monmouth townships, Haliburton County
Publication Number: OFR5021 Page: 183-188 Date: 1997
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Monmouth Township, Haliburton County
Publication Number: M2174 Scale: 1:31,680 Date: 1970
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Uranium and thorium deposits of southern Ontario
Publication Number: OFR5311 Page: 150 Date: 1981
Author: Gordon J.B., Rybak U.C., Robertson J.A.
Publisher Name: Ontario Geological Survey
Location:
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