Ontario Geological Survey
Permanent Link to this Record:
MDI31F04SE00117
| Record Name(s) | Ashby Anomaly - 1993 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1993-Feb-18 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Ashby
Latitude: 45° 7' 21.22" Longitude: -77° 30' 30.07"
UTM Zone: 18 Easting: 302725.493 Northing: 4999626.589 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31F04SE
Point Location Description: Dot symbol '14' 1.6 km. SSE of Parkhurst Lake.
Location Method: Conversion from MDI
Aeromag anomaly. Ground traverses indicate low positive readings.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Geological Age: Mesoproterozoic
Dec 07, 2005 (C Papertzian) - The anomaly is centered over the south edge of a large hill of amphibolite.The foliation strikes S 30 W.The amphibolite is intruded by granite pegmatite and has been converted in part to migmatite. Local garnetiferous horizons were noted .Magnetite, occuring in streaks and clots as well as disseminations, reaches a maximum of 5%.The texture of the amphibolite is fine to coarse - grained and the rock has a well - banded appearance.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Garnet | Economic | Ore | ||||
| 10 | Magnetite | Economic | Ore |
Book - Preliminary report on the geology in the vicinity of aeromagnetic anomalies on the Bancroft and Coe Hill sheets
Publication Number: PR1951-02 Scale: Date: 1998
Author: Abraham E.M.
Publisher Name: Ontario Dept. of Mines
Location:
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