Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31E06SW00021

Record: MDI31E06SW00021

General

Mineral Record Identification
Record Name(s) Ashworth Gabbro - 1987
Related Record Type Simple
Record Status Discretionary Occurrence
Date Created 1991-Apr-16
Date Last Modified 2022-Jan-05
Created By Q Unknown
Revised By A Wilson

Commodities

Primary Commodities: Gabbro



Location

Township or Area: Stisted

Latitude: 45° 20' 14.83"    Longitude: -79° 25' 24.68"

UTM Zone: 17    Easting: 623518.998   Northing: 5021647.001    UTM Datum: NAD83

Resident Geologist District: Sudbury

NTS Grid: 31E06SW

Point Location Description: approximate

Location Method: Data Compilation



Geology

Province: Grenville

Subprovince: Central Gneiss Belt

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Amphibolite 1 Sheared Host
Gneiss-Unsubdivided 2 Granodioritic To Trondhjemitic Sheared Contains

Lithology Comments

Apr 04, 2011 (A Wilson) - The area has been mapped as a fault zone in grey gneiss. Amphibolitic boudins and discontinuous layers of amphibolite have been observed in the area. Marmot and Johnston identified this as an undeformed gabbro. It occurs as a series of outcrops up to 5 m high along a north-facing slope. The joint spacing is moderate (1-2 m) and irregular. The gabbro is consistently medium grained.




Mineral Record Details

Classification
RankClassification            
1 Dimension Stone

References

Map - Parry Sound-Huntsville area, Ontario

Publication Number: M2118 Scale: 1:126,720    Date: 1967

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines


Mono - Mineral deposits studies in the Huntsville-Parry Sound-Powassan area, a progress report

Publication Number: OFR5647 Scale:     Date: 1987

Author: Marmont C., Johnston M.

Publisher Name: Ontario Geological Survey


Map - Precambrian Geology, Huntsville Area

Publication Number: P3413 Scale: 1:50,000    Date: 2000

Author: Lumbers S.B., Vertolli V.M.

Publisher Name: Ontario Geological Survey


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