Ontario Geological Survey
Permanent Link to this Record:
MDI31C16SW00075
| Record Name(s) | McManus Bay Road - 1989, Map Area 1259 - 1989 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jun-25 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Marble (Structural Material)
Township or Area: South Sherbrooke
Latitude: 44° 46' 29.83" Longitude: -76° 28' 39.42"
UTM Zone: 18 Easting: 383086 Northing: 4959013 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C16SW
Point Location Description: sample site 1259
Location Method: Data Compilation
Access Description: On a gravel road, 1 km southwest of Christie Lake, between Christie and Farrell Lakes.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Frontenac
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Calcite Marble | 1 | Host |
|---|---|---|---|---|
| Paragneiss | 2 | Adjacent |
Sep 19, 2015 (A Wilson) - This marble belt is bounded by migmatitic rocks on both sides. The migmatites change from marble paragneissto syenite-paragneiss as the distance from the marble belt increases. Detailed mapping of the area shows that the paragneiss units are not conformable with the marble belt and are deformed, possibly during the final metamorphic episode. Marble in the area is white, containing phlogopite and graphite. Small zones of grey and white laminated marble containing graphite and phlogopite occur locally.
Sep 19, 2015 (A Wilson) - Marble in this belt is clean and calcitic, but the presence of silicate segregations may make the marble unusable. It is likely, however, that zones exist where these silicate segregations do not occur, making the marble much more suitable as filler-type material. Nearly all of the samples in this belt (samples 1259, 1276, 1277, 1284, 1285, and 1287) have high CaO/MgO ratios, averaging near 10. The MgO content ranges from 4 to 7 percent for calcitic marble, and the SiO2 content for most of these samples is less than l percent.
| Rank | Classification |
|---|---|
| 1 | Industrial |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
Mono - Geochemistry of Grenville marble in southeastern Ontario
Publication Number: MDC028 Scale: Date: 1989
Author: Grant W.T., Papertzian V.C., Kingston P.W.
Publisher Name: Ontario Geological Survey
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