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Ontario Geological Survey
Permanent Link to this Record:
MDI31D15NE00065
| Record Name(s) | Hwy 121 Roadcut - 1984 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jun-28 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Zinc
Township or Area: Snowdon
Latitude: 44° 51' 10.14" Longitude: -78° 40' 39.25"
UTM Zone: 17 Easting: 683511.42 Northing: 4969224.21 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D15NE
Point Location Description: Precise
Location Method: Based on Assessment
Access Description: 1.0 km northeast of Plewman Lake on Highway 121.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Bancroft
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Gneiss-Unsubdivided | 1 | Is |
|---|---|---|---|---|
| Pegmatite | 2 | Syenitic | Adjacent |
Jan 06, 2017 (A Wilson) - Rusty-weathering gneiss adjacent to a syenite pegmatite dike near the margin of the Glamorgan Gneiss Complex on Highway 121.
Jan 06, 2017 (A Wilson) - Samples collected from a gneiss adjacent to a pegmatite near Highway 121 assayed 173 ppm Cu and over 900 ppm Zn on samples collected by field party personnel. The adjacent pegmatite dike contains only 39 ppm Cu and 16 ppm Zn, and probably only acted as a heat source, and not a source of the metals. This is a newly reported occurrence.
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Stratiform |
MonoMap - Geology of the Howland area, Haliburton, Peterborough and Victoria counties
Publication Number: OFR5639 Scale: Date: 1987
Author: Easton R.M.
Publisher Name: Ontario Geological Survey
Map - Geological series, Precambrian geology, Howland area, Haliburton, Peterborough, and Victoria counties
Publication Number: P2699 Scale: 1:15,840 Date: 1984
Author: Easton R.M., Bartlett J.R.
Publisher Name: Ontario Geological Survey
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office