Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52A04NW00009

Record: MDI52A04NW00009

General

Mineral Record Identification
Record Name(s) Suomi - 1958
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1979-Aug-21
Date Last Modified 2022-Mar-02
Created By
Revised By

Commodities

Primary Commodities: Iron



Location

Township or Area: Strange

Latitude: 48° 14' 18.74"    Longitude: -89° 58' 31.4"

UTM Zone: 16    Easting: 279085.59   Northing: 5347094    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52A04NW

Point Location Description: Precise

Location Method: Conversion from MDI



Exploration History

1958: Seaway Iron Mines Ltd. drilled 5 DDH totalling 398 m.


Geology

Province: Southern

Formation Group: Animikie Group

Geological Age: Paleoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Ironstone-unsubdivided 1 Is
Diabase 2 Diabase Sill

Lithology Comments

Feb 07, 2018 (Therese Pettigrew) - Gently dipping, Gunflint iron formation composed of magnetite, jasper, silica and slate capped by 60 to 100 feet of Keweenawan diabase.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ChertEconomicOre
2HematiteEconomicOre
3MagnetiteEconomicOre

Mineralization Comments

Feb 07, 2018 (Therese Pettigrew) - Drilling intersected 73 to 380 feet of iron formation, including a 75-foot section of magnetite-jasper. Previous sampling from Silver Bluff and the E face of Divide Ridge which assayed 26.4, 30.4 and 32.3% Fe gave concentrates of 43.4, 53.6 and 50.4% Fe at -200 M with weight recovery of 39.6, 47.2 and 27.1% (Shklanka, 1968).



Mineral Record Details

References

Part - Gunflint iron formation of the Whitefish Lake area, District of Thunder Bay

Publication Number: ARV69-07.002 Scale:     Date: 1998

Author: Goodwin A.M.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Iron deposits of Ontario

Publication Number: MDC011 Scale:     Date: 1968

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


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