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Ontario Geological Survey
Permanent Link to this Record:
MDI31C05NW00012
| Record Name(s) | Havelock - 1990 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1990-Sep-25 |
| Date Last Modified | 2024-Feb-08 |
| Created By | |
| Revised By |
Primary Commodities: Limestone (Crushed Stones)
Township or Area: Belmont
Latitude: 44° 26' 26.51" Longitude: -77° 49' 12.73"
UTM Zone: 18 Easting: 275571.27 Northing: 4924690.81 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C05NW
Point Location Description: Precise, based on satellite imagery and Wolf (1993).
Location Method: Data Compilation
Access Description: 6 km east of Havelock on Hwy 7.
The quarry was operated between 1930 and 1950 by Ontario Rock Company Ltd for crushed stone which was used in local road construction. The quarry is currently inactive and partly obscured by vegetation and talus.
Province: Paleozoic and Mesozoic Basins
Subprovince: Appalachian Basin
Geological Age: Paleozoic
Aug 02, 2023 (Mateo Dorado-Troughton) - The quarry exposes about 6m of limestone of Middle Ordovician Gull River and Bobcaygeon formations. Wolf (1993) described two units - Unit 2: Limestone: mottled medium grey-brown to dark brown, weathers same; fine to coarse crystalline, with intervals of laminated medium- to coarse-grained calcarenites, and some intervals of coarse-crystalline bioclastic limestone; thin bedded except for the upper 80 cm which is one massive bed; very fossiliferous, with numerous rugose and tabulate corals and stromatoporoids over 40 cm in diameter, and abundant crinoidal debris; lower contact is very sharp, marked by a thin, (5 cm) recessive shaly limestone - Unit 1: Limestone: medium grey to grey-brown, weathers light to medium grey; microcrystalline, with a lithographic texture, upper 0.5 m of unit has thin interbeds of fine- to medium crystalline limestone; thick bedded; patches of calcite crystals common.
| Rank | Characteristic |
|---|---|
| 1 | Stratiform |
Mono - An Inventory of Inactive Quarries in the Paleozoic Limestone and Dolostone Strata of Ontario
Publication Number: OFR5863 Page: 133 Date: 1993
Author: Wolf R.R.
Publisher Name: Ontario Geological Survey
Location:
Part - The limestones of Ontario
Publication Number: ARV13-02 Page: 98 Date: 1998
Author: Miller W.G.
Publisher Name: Ontario Bureau of Mines
Location:
Part - The pre-Cambrian geology of southeastern Ontario
Publication Number: ARV22-02 Page: 33 Date: 1998
Author: Miller W.G., Knight C.W.
Publisher Name: Ontario Bureau of Mines
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office