Ontario Geological Survey
Permanent Link to this Record:
MDI31C08SE00006
| Record Name(s) | Forsythe Island Quarry - 1912, Admiralty Islands - 1912 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1982-Jun-21 |
| Date Last Modified | 2022-Jun-15 |
| Created By | |
| Revised By |
Primary Commodities: Granite
Township or Area: Leeds
Latitude: 44° 18' 41.14" Longitude: -76° 9' 43.93"
UTM Zone: 18 Easting: 407310 Northing: 4907120 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C08SE
Point Location Description: Precise
Location Method: AMIS Site Visit
Access Description: From Gananoque, boat to Forsythe Island. Site is located on east side of island.
pre 1912: granite extracted for dimension stone
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Granite | Is |
|---|
Mar 12, 2013 (A Wilson) - One quarry north of the house measures 40 by 40 feet with a 20-foot face. The stone is medium-grained red granite. Vertical joints strike N.20 0W. and N.80 0 E. A second small quarry opening is at the east end of the island. The quarry is 20 by 60 feet long and 6 feet deep. Vertical joints strike N.60 0 E. The red coarse-grained granite from Forsythe Island quarry was examined by the Ontario Geological Survey. Its compressive strength was 15875 p.s.i.; absorption, 0.230 percent; bulk specific gravity 2.64 and weight per cubic foot, 165 pounds.
Mono - Building stones of Ontario, part 5, granite and gneiss
Publication Number: IMR019 Page: 9-10 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - Report on the building and ornamental stones of Canada, vol. I; Canada Mines Branch, Publication 100
Publication Number: CMB Pub 100 Page: 299 Date: 1912
Author: Parks, W.A.
Publisher Name: Canada Mines Branch
Location: https://doi.org/10.4095/19686
Mono - Building stone of eastern Ontario, southern Ontario
Publication Number: OFR5556 Page: 60 Date: 1985
Author: Verschuren C.P., van Haaften S., Kingston P.W.
Publisher Name: Ontario Geological Survey
Location:
Map - Gananoque area, Ontario
Publication Number: M2054 Scale: 1:126,720 Date: 1998
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
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