Ontario Geological Survey
Permanent Link to this Record:
MDI31F01SW00011
| Record Name(s) | Fidlers Hill - 1981 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1990-Nov-09 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Talc
Township or Area: Dalhousie, Dalhousie
Latitude: 45° 0' 9.19" Longitude: -76° 25' 56.78"
UTM Zone: 18 Easting: 387107 Northing: 4984232.01 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F01SW
Point Location Description: 0.75 km northeast of Fidlers Hill.
Location Method: Data Compilation
Access Description: Talc exposed in roadside outcrops along Lanark County Road 12.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Sharbot Lake
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Dolomitic | Host |
|---|
Sep 15, 2015 (A Wilson) - Talc has been identified in tremolitic marbles on the road running east of Fidlers Hill. It is closely associated with the tremolite in the dolomitic marble and locally makes up 10-20 % of the rock. The tremolite marble alternates with well-layered, fine grained grey marble.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 2 | Tremolite | Economic | Ore | ||||
| 10 | Talc | Economic | Ore |
Sep 15, 2015 (A Wilson) - The rock units trend about 045º and dip 15 º to 40 º south. The tremolite makes up 10 to 20 % of the rock, the rest being medium to fine-grained white dolomite and magnesian marble. A field inspection located talc at three localities. Talc interlayered with tremolite was found in large, loose, locally derived blocks of dolomitic marble at FH4. A large outcrop on the south side of the road at FH6 contains two talc-tremolite-carbonate layers about 50 cm thick that grade 10 talc. At FH5, thin talc-tremolite layers in an outcrop grade 20% talc.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Mono - Talc in southeastern Ontario
Publication Number: OFR5714 Scale: Date: 1989
Author: LeBaron P.S., van Haaften S.
Publisher Name: Ontario Geological Survey
MonoMap - Industrial minerals of the Pembroke-Renfrew area, part 2
Publication Number: MDC022 Scale: Date: 1981
Author: Storey C.C., Vos M.A.
Publisher Name: Ontario Geological Survey
Map - Geology, Carleton Place, Ontario
Publication Number: Map 1362A Scale: 1:50,000 Date: 1973
Author: Reinhardt, E W; Wilson, A E; Liberty, B A
Publisher Name: Geological Survey of Canada
Map - Clarendon-Dalhousie-Darling area, counties of Frontenac and Lanark
Publication Number: M1956-04 Scale: 1:63,360 Date: 1997
Author: Peach P.A., Smith B.L.
Publisher Name: Ontario Dept. of Mines
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