Ontario Geological Survey
Permanent Link to this Record:
MDI31F07SW00003
| Record Name(s) | Patrick Shannahan - 1922, Shannahan - 1922 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1985-Nov-18 |
| Date Last Modified | 2022-Apr-26 |
| Created By | |
| Revised By |
Primary Commodities: Garnet (Nonmetals)
Secondary Commodities: Mica
Township or Area: Admaston
Latitude: 45° 22' 19.56" Longitude: -76° 46' 16"
UTM Zone: 18 Easting: 361316.002 Northing: 5025813.004 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F07SW
Point Location Description: approximate
Location Method: Data Compilation
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
Aug 17, 2011 (A Wilson) - The garnet-biotite schist strikes N45E and dips 45°NW. The pegmatite dike is approximately 3 feet wide. Garnet forms approximately 10% of the gneiss. Fractured dark red garnets 5 to 7 mm in size are plentiful, 1 cm garnets are common and garnets up to 2 cm also were observed. The garnet-bearing units are approximately 30 m wide.
| Rock Type | Rank | Composition | Texture | Relationship | Schist-Unsubdivided | 1 | Garnet-Biotite | Contains |
|---|---|---|---|---|
| Pegmatite | 2 | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Muscovite | Economic | Ore | ||||
| 2 | Garnet | Economic | Ore |
Aug 17, 2011 (A Wilson) - The books of muscovite range from 2-4 inches in width. Satterly noted that the mica was clear and unspotted. The muscovite was exposed in an 8 foot deep open cut.
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Publication - Renfrew map-area, Renfrew and Lanark counties, Ontario; Geological Survey of Canada, Paper 51-27
Publication Number: Paper 51-27 Page: 54 Date: 1951
Author: Quinn, H.A.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/101377
Part - Mineral occurrences in the Renfrew area
Publication Number: ARV53-03 Page: 69 Date: 1998
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Industrial minerals of the Pembroke-Renfrew area, part 2
Publication Number: MDC022 Page: 42, 166 Date: 1981
Author: Storey C.C., Vos M.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Renfrew, Renfrew and Lanark counties, Ontario
Publication Number: Map 67G Scale: 1:63,360 Date: 1951
Author: Geological Survey of Canada
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/109668
Map - Geological series, Renfrew area, eastern part, southern Ontario
Publication Number: P1838 Scale: 1:63,360 Date: 1978
Author: Lumbers S.B., Vertolli V.M.
Publisher Name: Ontario Geological Survey
Location:
Map - Renfrew, Precambrian geology
Publication Number: M2462 Scale: 1:100,000 Date: 1983
Author: Lumbers S.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, industrial minerals of the Pembroke-Renfrew area, southern Ontario
Publication Number: P2209 Scale: 1:126,720 Date: 1980
Author: Vos M.A., Storey C.C.
Publisher Name: Ontario Geological Survey
Location:
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