Ontario Geological Survey
Permanent Link to this Record:
MDI31E07NW00005
| Record Name(s) | MacDonald Quarry - 1988, Cotterchio Quarry - 1970 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1992-Feb-03 |
| Date Last Modified | 2024-Apr-08 |
| Created By | |
| Revised By |
Primary Commodities: Gneiss
Township or Area: Finlayson
Latitude: 45° 28' 39.23" Longitude: -78° 55' 39.26"
UTM Zone: 17 Easting: 661976.001 Northing: 5038092.998 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31E07NW
Point Location Description: approximate
Location Method: Data Compilation
Access Description: On the south side of the road opposite a small sand pit, 1.1 km east of the Tasso Lake bridge. Tasso Lake bridge is 19.7 km. north of Highway 60 on Muskoka Road 8.
Circa 1988-present: pitting, quarrying
Province: Grenville
Subprovince: Central Gneiss Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Gneiss-Unsubdivided | 1 | Monzogranite | Is |
|---|
Aug 15, 2011 (A Wilson) - Fine- to medium-grained pink paragneiss (meta-arkose). Very attractive pink potassium feldspar-rich gneiss, generally weakly foliated. Thin layers of medium-grained feldspar (coarser than the main mass of the rock) and spaced about 10 cm (4 m) apart, are strongly foliated and display mineral lineation on their surfaces. Occasional thin biotite-amphibolite seams (ranging from 0.5 cm to 15.0 cm in thickness) are spaced approximately l cm to 3 metres apart. There are minor cross-cutting pegmatite dikes from l - 3 cm thick.
| Rank | Classification |
|---|---|
| 1 | Decorative Aggregate |
Mono - Gneisses of the Parry Sound-Muskoka area: flagstone resources
Publication Number: OFR5725 Page: 53-54 Date: 1989
Author: Fouts C.R., Marmont C.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology, Kawagama Lake Area
Publication Number: P3525 Scale: 1:50,000 Date: 2003
Author: Lumbers S.B., Vertolli V.M.
Publisher Name: Ontario Geological Survey
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office