Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52H09NE00022

Record: MDI52H09NE00022

General

Mineral Record Identification
Record Name(s) Lake Nipigon North Iron Range - 1907, C.L. Craig - 1967
Related Record Type Partial
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1991-Jan-21
Date Last Modified 2022-Mar-02
Created By
Revised By

Commodities

Primary Commodities: Iron



Location

Township or Area: Dorothea

Latitude: 49° 40' 52.04"    Longitude: -88° 2' 14.72"

UTM Zone: 16    Easting: 425161   Northing: 5503694    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52H09NE

Point Location Description: Location of IF on OGS map M2294

Location Method: Data Compilation



Exploration History

1967: C.L. Craig held six patented claims AL402 to AL407. 1994-95: P. Lassila carried out prospecting, trenching, and sampling. 1997: Poplar Point Explorations Inc. carried out prospecting and sampling. 2010: Novus Gold Corp. carried out trenching and sampling on the property.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.48666 20000005673 20000005673
2.16389 42E12NW0103 42E12NW0103
2.18252 52H09NE2002 52H09NE2002
2.15902 52H09NE0005 52H09NE0005

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Beardmore-Geraldton

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Ironstone-unsubdivided 1 Magnetite-Hematite-Quartz Is

Lithology Comments

Sep 30, 2019 (Therese Pettigrew) - Shklanka (1968, p.375) summarizes the Dorothea occurrence as Algoma type, oxide facies "NE-trending, magnetite-hematite-quartz (chert, jasper) iron formation with some interbedded greywacke, usually less than 50 but up to 240 feet (15-73 m) in width, and 1.25 miles (2 km) in length".




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1HematiteEconomicOre
2MagnetiteEconomicOre
1JasperEconomicGangue

Mineralization Comments

Sep 30, 2019 (Therese Pettigrew) - No assays have been reported.



Mineral Record Details

References

Map - Dorothea, Sandra and Irwin townships, Thunder Bay District

Publication Number: M2294 Scale: 1:31,680    Date: 1974

Author: Mackasey W.O.

Publisher Name: Ontario Division of Mines

Location:


MonoMap - Geology of Dorothea, Sandra, and Irwin townships, District of Thunder Bay

Publication Number: R122 Scale:     Date: 1975

Author: Mackasey W.O.

Publisher Name: Ontario Division of Mines

Location:


Part - Iron ranges east of Lake Nipigon

Publication Number: ARV16-01.005 Scale:     Date: 1998

Author: Coleman A.P.

Publisher Name: Ontario Bureau of Mines

Location:


Mono - Iron deposits of Ontario

Publication Number: MDC011 Scale:     Date: 1968

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


Part - 1 - iron ranges east of Lake Nipigon

Publication Number: ARV17.005 Scale:     Date: 1998

Author: Coleman A.P., Moore E.S.

Publisher Name: Ontario Bureau of Mines

Location:


Book - NMINER HIST FILE T.BAY

Publication Number: N/A Scale:     Date: 1996

Author:

Publisher Name:

Location:


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Ministry Contact Information

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