Ontario Geological Survey
Permanent Link to this Record:
MDI31E11SW00019
| Record Name(s) | Boyes Quarry - 1989 |
|---|---|
| Related Record Type | Simple |
| Record Status | Prospect |
| Date Created | 1991-Feb-14 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Gneiss
Township or Area: Ryerson
Latitude: 45° 36' 1.32" Longitude: -79° 28' 40.26"
UTM Zone: 17 Easting: 618709 Northing: 5050774 UTM Datum: NAD83
Resident Geologist District: Sudbury
NTS Grid: 31E11SW
Point Location Description: quarry
Location Method: AMIS Site Visit
Access Description: From Magnetewan, take highway 560m east ~18km to Wisemans Corners. Turn southwest on Midlethian road and follow for 2.1km. Quarry located 35m north of road.
1989: sporadically in production
Province: Grenville
Subprovince: Central Gneiss Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Orthogneiss | 1 | Is |
|---|
Aug 27, 2012 (A Wilson) - This quarry is composed mainly of medium-grained, pinkish-red, feldspar-rich (quartz ~ 25% meta-arkose or orthogneiss. Foliation is strongly developed: individual mineral grains are stretched and flattened, but distinct compositional layers or gneissic mineral segregation is not developed. Weathered surfaces perpendicular to the mineral lineation have a pinkish-white colour caused by weathering of the feldspars within which glassy lenticles of quartz are aligned indicating the penetrative foliation. There are a few l to 10 mm thick layers of quartz and biotite-amphibolite which are parallel to the foliation. Mineral lineation is visible on most foliation planes. At the west end of the quarry is an upper unit of very fine- grained, pink and grey banded gneiss which appears to split readily into large, very flat slabs. There is little of this material present, but the same unit may be traceable at the east end of the quarry. The rock can be split along most foliation planes, but breaks readily deflect from one plane to the next, preventing the recovery of large thin flagstones. Most rock is broken into blocks and slabs which are rarely less than 10 cm thick.
| Rank | Classification |
|---|---|
| 1 | Dimension Stone |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1989 | 1550 |
Gneiss 1550 Tonne |
OFR5725 p. 46 | The quarry area is roughly 500 square metres. The quarry face is 26 m. long and about 2.5 m. high. It is estimated that a total of about 570 cubic metres of rock have been extracted. |
Mono - Gneisses of the Parry Sound-Muskoka area: flagstone resources
Publication Number: OFR5725 Scale: Date: 1989
Author: Fouts C.R., Marmont C.
Publisher Name: Ontario Geological Survey
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