Ontario Geological Survey
Permanent Link to this Record:
MDI31C15NW00004
| Record Name(s) | Ardoch-Plevna - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1984-May-29 |
| Date Last Modified | 2022-May-18 |
| Created By | |
| Revised By |
Primary Commodities: Kyanite (Nonmetals)
Secondary Commodities: Sillimanite
Township or Area: Clarendon
Latitude: 44° 55' 8.22" Longitude: -76° 57' 19.96"
UTM Zone: 18 Easting: 345655.92 Northing: 4975806.88 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C15NW
Point Location Description: Dot symbol ' Ky ' about 3.0 km NE of Fernleigh.
Location Method: Conversion from MDI
Access Description: Specific outcrops noted on lot 27, con 9 - in a field just N of the end of the farm lane, there is a low ridge of schists and gneiss ( 1952 ).
1913: W. Miller and C. Knight first reported kyanite. 1988: Aurochs SEM Inc. carried out geological mapping, assaying and analyses. 1992: W.E. Holmstead completed overburden stripping and geochemistry. 1993: W. Brack completed manual labour, overburden studies, prospecting, trenching, geochemical studies.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| OP93-446 | 31C15NW0018 | 31C15NW0018 |
| 52E01NE0003 | 20000005178 | 20000005178 |
| W8909.00005 / 2.12051 | 31C15NW0082 | 31C15NW0082 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Staurolite-Kyanite-Sillimanite Schist | Host |
|---|
Apr 15, 2021 (Sheree Hinz) - Staurolite-kyanite-sillimanite occur in varying proportions, according to metamorphic grade, in a schist unit that runs along strike for a couple of miles either side of Fernleigh. The muscovite schist is an average of 100 yards wide and 25 m long, stretching from Barrie township in the west to Clyde Forks (Lavant) in the east.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Kyanite | Economic | Ore | ||||
| 2 | Sillimanite | Economic | Ore | ||||
| 3 | Staurolite | Economic | Ore | ||||
| 4 | Garnet | Economic | Ore |
Apr 15, 2021 (Sheree Hinz) - Near Fernleigh kyanite crystals can reach 8 inches and staurolite 3 inches with 1/2-inch garnets and plagioclase porphyroblasts. The kyanite is seen best on the south margin of the schist (15-20 ft); the other minerals alternate in prominence in bands. See OGS 1956 and map P2487 - Ardoch (which clearly shows the schist unit).
Map - Madoc area, Ontario
Publication Number: M2053 Scale: 1:126,720 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Kyanite and sillimanite in Ontario
Publication Number: IMR004 Page: 6 Date: 1998
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological series, Precambrian geology of the Ardoch area, southern Ontario
Publication Number: P2487 Scale: 1:15,840 Date: 1982
Author: Pauk L., Mannard G.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Clarendon-Dalhousie area
Publication Number: ARV65-07.001 Page: 35-37 Date: 1998
Author: Smith B.L.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geological notes for maps nos. 2053 and 2054, Madoc-Gananoque area
Publication Number: S012 Page: 12 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Book - 1988, Sillimanite Report
Publication Number: Page: 43-48 Date: 1988
Author:
Publisher Name: Ontario Geological Survey
Location: Tweed RGP
MonoMap - Geology of the Ardoch area, Frontenac County
Publication Number: R241 Page: 25 Date: 1988
Author: Pauk L.
Publisher Name: Ontario Geological Survey
Location:
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