Ontario Geological Survey
Permanent Link to this Record:
MDI31C10NW00147
| Record Name(s) | Brewers Road - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-May-27 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Gabbro
Township or Area: Olden
Latitude: 44° 43' 38.91" Longitude: -76° 46' 57.89"
UTM Zone: 18 Easting: 358827.494 Northing: 4954222.881 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C10NW
Point Location Description: General, point 1.1 km W of O'Reilly Lake.
Location Method: Conversion from MDI
Building Stone Inventory. Gabbro rock material, potential for quarrying blocks classed as poor.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
Dec 07, 2005 (C Papertzian) - The gabbro at this site is part of the Mountain Grove Mafic Intrusion. It is dark grey to black in colour and is quite attractive. The area shows fair outcropping with intense irregular jointing. The rock is uniformly massive and mediumt to coarse grained. Jointing, felsic stringers, and trace amounts of pyrite combine to make this a poor prospect for building stone. The weathered surface is up to 5 mm in depth. The grain size is uniformly medium to coarse. The texture is uniformly massive. Joints strike at approximately 130 degrees and are spaced .25 to .5 meters apart.
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Host |
|---|
Dec 07, 2005 (D Laidlaw) - Gabbro, mineralogy: plagioclase, pyroxene.
Date: Aug 30, 2002
Geologist: C Papertzian
Notes: This location was visited on the 23rd of July, 2002. The outcrops along the road are not very massive and tend to be intensively jointed. The area of the test block was located. Many felsic stringers were also seen. This area requires more extensive mapping to locate an area where jointing is not as extensive and deleterious minerals are absent.
Mono - Building stone potential in eastern Ontario
Publication Number: OFR5706 Scale: Date: 1989
Author: LeBaron P.S., Verschuren C.P., Papertzian V.C., Kingston P.W., Chevrier R.L.
Publisher Name: Ontario Geological Survey
Location:
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