Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41N08SE00029

Record: MDI41N08SE00029

General

Mineral Record Identification
Record Name(s) Montreal River South - 1985, Mcaughey Township - Southeast - 1979
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1991-Sep-01
Date Last Modified 2022-Apr-26
Created By
Revised By

Commodities

Primary Commodities: Iron



Location

Township or Area: McAughey

Latitude: 47° 18' 54.2"    Longitude: -84° 6' 34.43"

UTM Zone: 16    Easting: 718444.61   Northing: 5244228.05    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 41N08SE

Point Location Description: Iron formation

Location Method: Conversion from MDI

Access Description: 250 metres north of the south boundary of McAughey Township, 600 metres west of the east township boundary.



Exploration History

1962: F.R. Joubin and Associates found the property after flying an airborne geophysical survey.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
0010A1 41N08NE0009 41N08NE0009

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Batchawana

Geological Age: Early Precambrian  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Ironstone-unsubdivided 1 Host

Lithology Comments

Oct 23, 2019 (Sheree Hinz) - Lithology Comment The chert-ironstone unit is interbedded with mafic to intermediate metavolcanics, and is intercalated with metavolcanic-derived wacke interbeds. The ironstone unit is at least 6 km in length, and is aeromagnetically distinct. This unit appears to be discontinuous, because deposition probably occurred in basin-like features separated from each other or because of tectonic dislocation. The unit is probably at least 30 m thick, and may be as great as 50 m thick. The chert-magnetite banding forms laminae less than 1 mm thick and can be as much as 30 cm thick. The chert usually forms the thicker beds. Ironstone bands consist mainly of magnetite and amphibole




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1MagnetiteEconomicOre
1ChertEconomicGangue

Mineralization Comments

Oct 23, 2019 (Sheree Hinz) - The amount of magnetite varies from 50 to 60 percent of the rock.



Mineral Record Details

References

Map - Grey Owl Lake, Algoma District

Publication Number: M2446 Scale: 1:31,680    Date: 1981

Author: Grunsky E.C.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology of the Grey Owl Lake area, District of Algoma

Publication Number: R205 Page: 65  Date: 1981

Author: Grunsky E.C.

Publisher Name: Ontario Geological Survey

Location:


Map - Geological series, Grey Owl Lake area, District of Algoma

Publication Number: P2231 Scale: 1:15,840    Date: 1979

Author: Grunsky E.C., McAuley J.B., Van Steenburgh R.

Publisher Name: Ontario Geological Survey

Location:


Mono - Geology of the Grey Owl Lake area, District of Algoma

Publication Number: OFR5274 Page: 79-80  Date: 1979

Author: Grunsky E.C.

Publisher Name: Ontario Geological Survey

Location:


Map - Geological series, Precambrian geology, Batchawana synoptic project, Grey Owl Lake sheet, District of Algoma

Publication Number: P3060 Scale: 1:50,000    Date: 1987

Author: Grunsky E.C.

Publisher Name: Ontario Geological Survey

Location:


Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario

Publication Number: GSC OF 1087 Page: 148  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999


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Ministry Contact Information

For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office