Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001857

Record: MDI000000001857

General

Mineral Record Identification
Record Name(s) Armstrong Ballast Quarry - 2015
Related Record Type
Record Status Occurrence
Date Created 2015-Aug-20
Date Last Modified 2022-Jan-05
Created By A Wilson
Revised By A Wilson

Commodities

Primary Commodities: Aggregate



Location

Township or Area: Armstrong Area

Latitude: 50° 17' 42.58"    Longitude: -89° 1' 12.72"

UTM Zone: 16    Easting: 356112   Northing: 5573401    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52I06SE

Point Location Description: approximate centre of new aggregate permit

Location Method: Based on Assessment

Access Description: The property is located less than 1 km south and east of the town of Armstrong, Ontario and is accessible via Highway 527 North from Thunder Bay to Armstrong, then through an existing logging road to the east of Armstrong.



Exploration History

2003-2006: Fudge and Associates – prospecting, mapping, sampling and test pitting, ground magnetometer survey, bulk sampling (30 000 tonnes). Appears to be in production but no production information is available.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.29495 20000000306 20000000306
2.33421 20000001715 20000001715

Geology

Province: Superior

Subprovince: Wabigoon

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Diabase 1 Diabase Fine-Grained Is
Monzonite 2 Monzonite Contains

Lithology Comments

Aug 21, 2015 (A Wilson) - No prior detail work is reported on the property. Diabase sills are thought to be the most extensive rock type in the area ranging in thickness from 1 or 2 meters to over 200 meters. The claim group is thought to host diabase rock suitable for high specification aggregate; the surface expression of which forms a 20 meter high northeast trending escarpment south east of the town of Armstrong.




Mineralization Comments

Aug 21, 2015 (A Wilson) - Laboratory testing confirms a sample bulk density of 2.94 that is well in excess of minimum specification of 2.60. Similarly L.A. Abrasion Loss of 13.5 %, 0.429 % Absorption and Magnesium Sulphate loss of 0.7 are all within main line ballast specifications. No deleterious materials were noted in Petrographic test, nor were sulphides or other leachable material noted in the field.



Mineral Record Details

References

Map - Sioux Lookout-Armstrong, geological compilation series, Kenora and Thunder Bay districts

Publication Number: M2442 Scale: 1:253,440    Date: 1981

Author: Breaks F.W.

Publisher Name: Ontario Geological Survey


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Ministry Contact Information

For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office