Ontario Geological Survey
Permanent Link to this Record:
MDI31C09SW00046
| Record Name(s) | Opinicon Lake Sandstone - 1949, ODM sample 109 - 1949, Barrel Point - 1949 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1993-Mar-11 |
| Date Last Modified | 2022-Jan-28 |
| Created By | |
| Revised By |
Primary Commodities: Sandstone (Silica), Silica Sand
Township or Area: South Crosby, South Crosby
Latitude: 44° 34' 22.09" Longitude: -76° 18' 13.78"
UTM Zone: 18 Easting: 396477.42 Northing: 4936322.84 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C09SW
Point Location Description: Point 0.7 km northeast of Barrel Point.
Location Method: Data Compilation
Access Description: Main showings are along the east shore of Opinicon Lake at 3/4 ml east of Chaffey's Locks and on Barrel Point.
Province: Paleozoic and Mesozoic Basins
Geological Age: Paleozoic
Dec 07, 2005 (C Papertzian) - An exposed area of Potsdam Sandstone, about 4,000 ft long by 800-200 ft wide. Exept for a 35 ft cliff ( due E of Chaffey's Locks ) the sandstone is only about 10-15 ft thick. Samples from this cliff and Barrel Point ( OGS 1946 ) - averaged in section ' Le-9 ' ( OGS 1979 ).
| Rock Type | Rank | Composition | Texture | Relationship | Sandstone | 1 | Is |
|---|---|---|---|---|
| Conglomerate | 2 | Adjacent | ||
| Gneiss-Unsubdivided | 3 | Near |
Nov 20, 2013 (A Wilson) - The sandstone is typically 10-15 ft thick. At the base of the section is a conglomerate member and a red banded sandstone which have a total thickness of 3-4 ft. The sandstone above the basal horizon is mostly friable and white to pale-buff in colour except for a few thin, grey carbon-bearing bands.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Silica | Economic | Ore |
Nov 20, 2013 (A Wilson) - Sample 109 assayed: 98.5% SiO2, 0.27% Fe2O3, 0.45% Al2O3, 0.04% MgO and 0.09% CaO. It was taken to represent the section exposed at the cliff. Sample 110 assayed: 99.04% SiO2, 0.27% Fe2O3, 0.65% Al2O3, 0.03% MgO and 0.07% CaO and is representative of the outcrops at Barrel Point.
| Rank | Classification |
|---|---|
| 1 | Industrial |
| Rank | Characteristic |
|---|---|
| 1 | Stratiform |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 1219 | 3 |
Part - Sandstone as a source of silica sands in southeastern Ontario
Publication Number: ARV55-05 Scale: Date: 1997
Author: Keith M.L.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Silica sand potential in eastern Ontario, preliminary report 1
Publication Number: OFR5265 Scale: Date: 1979
Author: Powell R.D., Klugman M.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Paleozoic geology, Westport area, southern Ontario
Publication Number: P2723 Scale: 1:50,000 Date: 1984
Author: Williams D.A., Wolf R.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Part of southeastern Ontario showing distribution of Potsdam sandstone
Publication Number: M1946-09 Scale: Date: 1997
Author: Keith M.L., Baker M.B., Wright J.F., Wilson A.E., Wilson M.
Publisher Name: Ontario Dept. of Mines
Location:
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