Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D16SE00047

Record: MDI31D16SE00047

General

Mineral Record Identification
Record Name(s) Silent Lake Sillimanite - 2000
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1993-Mar-10
Date Last Modified 2022-May-18
Created By
Revised By

Commodities

Primary Commodities: Sillimanite



Location

Township or Area: Chandos

Latitude: 44° 51' 32.22"    Longitude: -78° 5' 36.13"

UTM Zone: 17    Easting: 729648.959   Northing: 4971392.314    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D16SE

Point Location Description: Triangle symbol ' sill,ct ', 3.2 Km WNW of Scott settlement.

Location Method: Conversion from MDI

Access Description: Located about 5 Km SW of Silent Lake ( Cardiff township ) in a paragneiss unit. Access is via Hwy 28 and an MNR forest access road.



Geology

Province: Grenville

Geological Age: Mesoproterozoic  



Geology Comments

Dec 07, 2005 (C Papertzian) - In an area about 150 m by 40 m are repeating lenses of paragneiss carrying sillimanite ( and garnet ). See also : Silent Lake Park, MDI31D16NE00232. Also, OGS 1987, Map P2205 ( Eels Lake ) and GR 11, P24 illustrate the sillimanite, staurolite, cordierite and hypersthene mineralization across the township - a product of regional and contact metamorphism ( around the Loon Lake Pluton ).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
5CordieriteEconomicOre
10SillimaniteEconomicOre

Mineral Record Details

References

MonoMap - Geology of Chandos Township, Peterborough County and Wollaston Township, Hastings County

Publication Number: R011 Page: 24  Date: 1998

Author: Shaw D.M., Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Book - 1988, Sillimanite Report

Publication Number: Page: 60-61  Date: 1988

Author:

Publisher Name: Ontario Geological Survey

Location: Tweed RGP


Map - Geological series, Precambrian geology, Eels Lake area, Haliburton and Peterborough counties

Publication Number: P2205 Scale: 1:50,000    Date: 1980

Author: Bright E.G.

Publisher Name: Ontario Geological Survey

Location:


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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office