Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C02SE00100

Record: MDI42C02SE00100

General

Mineral Record Identification
Record Name(s) Josephine-Bartlett Iron Range - 1946, Bartlett Iron Range - 1911, Britannia Range - 1984
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1984-Aug-31
Date Last Modified 2022-Oct-20
Created By
Revised By

Commodities

Primary Commodities: Iron



Location

Township or Area: Corbiere

Latitude: 48° 7' 12.14"    Longitude: -84° 35' 52.68"

UTM Zone: 16    Easting: 678759.16   Northing: 5332432.92    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C02SE

Point Location Description: Occurrence 10 map P.2607

Location Method: Conversion from MDI

Access Description: The iron range stretches from Parks Lake on the south-west to an un-named lake east of Kimbal Lake in the east. The iron range is accessible by overland traverse from the end of the Loonskin Lake road (Bauldry Lake turnaround), for a distance of 4.5 km.



Exploration History

1911-1916: Algoma Steel Corporation Ltd. - trenching at 100 foot spacings, 4 ddh (3817.5 feet); 1946-47 - 111 ddh (36,646.5 feet); 1958- airborne magnetic survey, dip needle survey.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Corbiere-0021 42C02SE0003 42C02SE0003
Corbiere-0013 42C02SE8831 42C02SE8831

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Tectonic Assemblage: Wawa

Geological Age: Neoarchean   Geochronological Age: 2750 MA   Geochron. Age Ref.: OFR 5888



Geology Comments

Dec 07, 2005 (A Wilson) - The Bartlett-Josephine iron range is a typical Michipicoten-style iron formation occurring at the top of cycle one intermediate to mafic metavolcanics and at the base of cycle two intermediate to mafic metavolcnaic rocks. The iron range is terminated on the east by the Marsden Fault which has juxtaposed granite next to the iron formation. The stratigraphy of the iron formation is north-facing. On the north, the iron formation is in contact with clastic metasedimentary rocks that have been metamorphosed to biotite schist. To the south the rocks consist of brecciated intermediate to felsic metavolcanic rocks.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Carbonate Ironstone 1 Carbonate Facies Host
Felsic Tuff-Breccia 2 Felsic To Intermediate Tuff And Breccia Footwall
Siltstone 3 Thinly Banded Footwall

Lithology Comments

Dec 07, 2005 (A Wilson) - The iron formation consists of strongly banded carbonate facies iron formation. Chert is finely to coarsely banded or brecciated. The siderite-pyrite deposits occur to the footwall side of the iron formation. It consists of siderite at the stratigraphic bottom grading upward through pyrite and chert.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1SideriteEconomicOre
2PyriteEconomicOre

Mineralization Comments

Dec 07, 2005 (A Wilson) - The average grade of the iron formation in 1911 was estimated to be 40.72% Fe, 4.61% Si, 3.54% S and 0.008% Ph. Between the depth of 2714 and 2810 feet the grade was estimated to be 41.02% Fe, 7.55% Si, 17.48% S, 1.75% Mn. It was estimated that a sinter of 58.36% Fe could be produced from the siderite.



Mineral Record Details

Classification
RankClassification            
1 Sedimentary
Characteristics
Rank Characteristic            
1 Breccia
2 Concordant
3 Stratiform

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Breccia

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Regular 5890 45 90 85 2750 MA OFR 5888
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Bartlett-Josephine A-D 1946 Possible 7555788 OFR 5587 Iron 58.36 NA

References

File - Resident Geologist files WP Esquega.33

Publication Number: Date:

Author:

Publisher Name:

Location: SSM RGP office


Map - Michipicoten area, compilation sheet, District of Algoma

Publication Number: P0184 Scale: 1:126,720    Date: 1997

Author: Goodwin A.M.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Josephine-Bartlett iron range, Township 28, Range 25 [Corbiere Township], District of Algoma, Ontario

Publication Number: M1946-08 Scale: 1:9,600    Date: 1997

Author: Moore E.S., Armstrong H.S., Morrison W.F., Collins W.H., Quirke T.T., Thomson E.

Publisher Name: Ontario Dept. of Mines

Location:


Folio - Corbiere Township, District of Algoma

Publication Number: GDIF297 Date: 1997

Author: Sault Ste Marie RGO

Publisher Name: Ontario Geological Survey

Location:


Map - Geological series, Precambrian geology, Corbiere Township, Algoma District

Publication Number: P2607 Scale: 1:15,840    Date: 1984

Author: Sage R.P., Calvert T., Epstein R., England D., Koscinsko K., Worona R., Oudkerk G., Inasi J., Lockwood M.B., Thomas D.

Publisher Name: Ontario Geological Survey

Location:


Publication - Michipicoten Iron Ranges; Geological Survey of Canada, Memoir 147

Publication Number: GSC Memoir 147 Page: 93-94  Date: 1926

Author: Collins, W H; Quirke, T T; Thomson, E

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/100849


Part - Iron deposits in the District of Algoma

Publication Number: ARV55-04.001 Page: 37-58  Date: 1997

Author: Moore E.S., Armstrong H.S.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Iron deposits of Ontario

Publication Number: MDC011 Page: 58  Date: 1968

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Wawa mineral deposits data base

Publication Number: OFR5775 Page: 148  Date: 1991

Author: Frey E.D., Stewart R.C.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma

Publication Number: OFR5587 Page: 249-250  Date: 1993

Author: Sage R.P.

Publisher Name: Ontario Geological Survey

Location:


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