Ontario Geological Survey
Permanent Link to this Record:
MDI31F04SW00069
| Record Name(s) | Davis Hill - 1990 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1990-Nov-16 |
| Date Last Modified | 2022-May-11 |
| Created By | |
| Revised By |
Primary Commodities: Nepheline Syenite
Township or Area: Dungannon
Latitude: 45° 3' 55.24" Longitude: -77° 48' .68"
UTM Zone: 18 Easting: 279553.413 Northing: 4994024.432 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F04SW
Point Location Description: Point 1 km NW of Bronson.
Location Method: Conversion from MDI
Access Description: From Bancroft take Hwy 28 E for 3.68 km and turn right on to a dirt road. Park and follow the trail down the hill. Cross the walkway over the beaver dam and follow the trail (blazed) to a small clearing. Take the main trail to the top or the hill where it forks . The right trail leads to a sodalite deposit, the left to the nepheline deposit.
Mineral location - nepheline. early 1900s : this was an old mica prospect and some stripping and pitting was carried out. 1966 : the National Museum of Canada conducted a small-scale mining operation for the recovery of mineral specimens (some of the best nepheline was obtained here). Vandalism has destroyed the remaining material.
Province: Grenville
Geological Age: Mesoproterozoic
Dec 07, 2005 (C Papertzian) - Calcite-cored vein-dykes, lined with well-formed crystals of nepheline, biotite and antiperthite have developed along tension joints in nepheline gneiss. They range from 30 cm to more thean 30 m in length and < 1 cm to > 1 m thick. Most are pod-like. Sodalite, cancrinite (high temp alteration products), natrolite, hydronephelite and vermiculite (low temp alteration products)occur.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Albite | Economic | Ore | ||||
| 2 | Apatite | Economic | Ore | ||||
| 3 | Biotite | Economic | Ore | ||||
| 4 | Nepheline | Economic | Ore | ||||
| 5 | Sodalite | Economic | Ore | ||||
| 6 | Tourmaline | Economic | Ore | ||||
| 7 | Zircon | Economic | Ore | ||||
| 8 | Cancrinite | Economic | Ore |
Book - GEOL CON 1972, EXCUR A-C47, P57-60
Publication Number: N/A Date: 1996
Author:
Publisher Name:
Location:
Book - 200 Mineral Locations in Southern Ontario
Publication Number: Page: 31 Date: 1972
Author: Leach, H.
Publisher Name:
Location:
Publication - Classic mineral collecting localities in Ontario and Quebec; Geological Survey of Canada, Miscellaneous Report 37
Publication Number: GSC MR 37 Page: 57-60 Date: 1983
Author: Hogarth, D D; Moyd, L; Rose, E R; Steacy, H R
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/119504
Part - Nepheline syenite deposits of southern Ontario
Publication Number: ARV69-08 Page: 67 Date: 1997
Author: Hewitt D.F., Armstrong H.S., Tilley C.E.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - A catalogue of the Ontario localities represented by the mineral collection of the Royal Ontario Museum
Publication Number: MP070 Page: 261 Date: 1977
Author: Satterly J.
Publisher Name: Ontario Geological Survey
Location:
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