Ontario Geological Survey
Permanent Link to this Record:
MDI31D16NW00234
| Record Name(s) | Buckhorn Road Nepheline - 1910 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1981-Dec-03 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Nepheline Syenite
Secondary Commodities: Sodalite, Zircon
Township or Area: Glamorgan, Glamorgan
Latitude: 44° 53' 42.6" Longitude: -78° 22' 57.15"
UTM Zone: 17 Easting: 706672 Northing: 4974638 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D16NW
Point Location Description: Pit symbol on west side of Hwy 507 in lot 25, con 4.
Location Method: Field Visit
Access Description: Nepheline gneisses occur within the main band of syenite gneiss in these lots. The pits are situated onthe west side of the Buckhorn Road (Hwy 507), 0.5 mile south of Gooderham.
3 pits.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Bancroft
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Nepheline-Plagioclase | Contains |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Biotite-Plagioclase | Host |
Jan 23, 2017 (C Papertzian) - Nepheline-bearing hornblende-plagioclase and biotite-plagioclase gneisses and nepheline-plagioclase pegmatites occur within the main band of syenite gneisses in these lots. The syenite gneisses have a maximum exposed width of about 18 chains. Near the W boundary of lot 25, 3 pits have been sunk on nepheline-plagioclase pegmatites in nepheline-biotite-plagioclase gneisses. Other outcrops expose nepheline-hornblende-plagioclase gneiss to the N. The total width is about 21/2 chains over a length of about 6 chains. The pegmatites are pod-like, up to 2 ft wide and < 10 ft long. Sodalite and cancrinite are common, with zircon (3/4 inch long). magnetite (2 inches) and calcite. A 10 inch band of hornblende-biotite-syenite gneiss, containing many small grains of purple fluorite, cuts the nepheline-hornblende-plagiooclase gneiss in a small outcrop about 50 ft N of the Emost pit. Nepheline occurs W and E of the Buckhorn Road, associated with magnetite. Mylonite is also present. This is band 3 in the text.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Nepheline | Economic | Ore | ||||
| 2 | Zircon | Economic | Ore | ||||
| 3 | Sodalite | Economic | Ore | ||||
| 4 | Fluorite | Economic | Ore | ||||
| 5 | Cancrinite | Economic | Ore |
Jan 23, 2017 (A Wilson) - Near the western boundary of lot 25, three pits have been sunk on nepheline-plagioclase pegmatites in nepheline-biotite-plagioclase gneisses.
| Rank | Classification |
|---|---|
| 2 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
Map - Glamorgan Township, Haliburton County
Publication Number: M2173 Scale: 1:31,680 Date: 1970
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Industrial minerals of the Algonquin region
Publication Number: OFR5425 Page: 234 Date: 1983
Author: Martin W.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Glamorgan and Monmouth townships, Haliburton County
Publication Number: OFR5021 Page: 42-44 Date: 1997
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Nepheline syenite deposits of southern Ontario
Publication Number: ARV69-08 Page: 38-39 Date: 1997
Author: Hewitt D.F., Armstrong H.S., Tilley C.E.
Publisher Name: Ontario Dept. of Mines
Location:
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