Ontario Geological Survey
Permanent Link to this Record:
MDI31D16NE00142
| Record Name(s) | Silanco Mining and Refining Company - 1956, Tory Hill #7 Group - 1956, Ansil Mines Ltd. - 1960 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1981-Sep-24 |
| Date Last Modified | 2023-Mar-22 |
| Created By | |
| Revised By |
Primary Commodities: Uranium, Thorium
Township or Area: Monmouth
Latitude: 44° 56' 54.96" Longitude: -78° 11' 11.97"
UTM Zone: 17 Easting: 721932.75 Northing: 4981091.47 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D16NE
Point Location Description: trench symbol just east of property symbol 17, in lot 32 conc 6
Location Method: Data Compilation
Access Description: Access to the property is by an old tractor road.
1955: Silanco Mining and Refining Company - stripping, trenching, DD-6-506 ft.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| #19 | 31D16NE0037 | 31D16NE0037 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Elzevir
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Contains |
|---|---|---|---|---|
| Skarn | 2 | Skarn | Contains | |
| Gneiss-Unsubdivided | 3 | Granitic | Contains | |
| Pegmatite | 4 | Syenite | Intrudes |
Jan 26, 2017 (A Wilson) - The property lies within the Cheddar granite mass. Trenching has exposed amphibolite, with bands of pyroxene-scapolite skarn and minor paragneiss cut by masses of granite pegmatite, leucogranite, hybrid granite gneiss and minor syenite pegmatite. In trench C.1 the main showing is at a pit. The pegmatite is very variable in character. It is a hornblende-calcite syenite pegmatite with abundant accessory pyrite and,rarely, blebs or large ovoid grains, ¼ by ½ inch, or reddish-brown uranothorite. The feldspar varies in colour from pale brick-red to brownish and greyish-green. Hornblende is patchy in distribution often in irregular strings of crystals or in clusters, sometimes intergrown with calcite. The calcite occurs in lenses or stringers or interstitially to the feldspar or hornblende. It is mostly grey but may be cream in colour. Pyrite is more abundant in the hornblende-rich sections of the pegmatite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Uranothorite | Economic | Ore | ||||
| 2 | Hornblende | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 4 | Calcite | Economic | Ore |
Jan 26, 2017 (A Wilson) - The uranothorite blebs are surrounded by strong radiation cracks in the feldspar. Geiger readings in the pit were 5x-l2x with spot-highs of 15x-30x. In the trench to the north and south of the pit on the syenite pegmatite, readings were 5x-17x with spot-highs of 25x-50x. To the south of the pit, over leucogranite and pegmatite, readings were 2x-5x with a spot-high of 20x.
Dec 07, 2005 (D Laidlaw) - Trench sample assay results ran 0.48, 0.72, 1.85, 0.80 and 3.14% U3O8.
File - Resident Geologist files Monmouth #23, 50
Publication Number: Date:
Author:
Publisher Name:
Location: Tweed RGP office
Part - Radioactive mineral occurrences in the Bancroft area
Publication Number: ARV65-06 Page: 104-105 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: 26 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: 193-194 Date: 1997
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: 153 Date: 1981
Author: Gordon J.B., Rybak U.C., Robertson J.A.
Publisher Name: Ontario Geological Survey
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:
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