Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42D14SW00011

Record: MDI42D14SW00011

General

Mineral Record Identification
Record Name(s) Mudge Occurrence - 1900, Otisse Sulphur Mine - 1900, Graham E.M. - 1952, Tb1048 - 1991
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Apr-01
Date Last Modified 2022-May-09
Created By
Revised By

Commodities

Primary Commodities: Sulphur/Pyrite



Location

Township or Area: Priske

Latitude: 48° 50' 10.17"    Longitude: -87° 15' 29.57"

UTM Zone: 16    Easting: 481051.66   Northing: 5409274.74    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D14SE, 42D14SW

Point Location Description: Stripped areas, pits.

Location Method: Conversion from MDI

Access Description: The occurrence is located in Priske Township on the northeastern shore of Cook Lake about 2.4 km north of Schreiber (claim TB1048, claim map G-631, Priske Township). Access may be gained using a bush road which extends north and east of Schreiber to Cook Lake. The property adjoins the northeast portion of the lake.



Exploration History

Circa 1900: Mining Locations X776 and X777 were staked by J.E. Walker, S. Otisse and J.D. Mudge, all of Schreiber. Some stripping and test pitting was undertaken. 1900: The property was visited by J.A. Bow, Inspector of Mines. 1907: E.L. Fraleck investigated the 'Otisse Prospect' for his report on iron pyrites in Ontario. 1909: J.D. Mudge staked TB 1048, formerly the northwest part of Mining Location X776. 1910: Surface work continued for assessment credit. 1915: A patent was approved for TB 1048. 1938: G.A. Harcourt of the Ontario Department of Mines examined and sampled the property. 1952: Claim ownership was transferred for taxes to E. Mudge Graham. 1981: TB 1048 became part of A.J. Garity Estate. 1987: J. Bond and D. Christianson conducted some stripping, prospecting and sampling on the Cook Lake occurrence located 0.75 km northeast of the Mudge occurrence.


Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  



Geology Comments

Dec 07, 2005 (B Nelson) - The occurrence is first described by Bow (1901 p.89): The sulphur, or pyrites, deposit consists of a mineralized zone with an oxidized capping outcropping along the hillside where the rock is more or less exposed. It is said to be traceable for over a mile (1.6 km), with a strike of nearly east and west. We walked along it for several hundred feet examining exposures which occurred at intervals. Test pits have been sunk at several points, and a couple of these were inspected. The deposit is heavily impregnated with pyrite on the surface, and lower down the percentage of the mineral increases, until it occurs in almost solid masses. There is said to be a solid body several feet wide at bottom of the pit, but water prevented examination. The dump looked very encouraging. Harcourt (1939 p.28) adds that: A polished section of sulphides from a pit 15 chains (990 feet; 302 m) from Hollinger Lake revealed pyrrhotite evenly distributed through an andesitic rock in such a way as to form a graphic pattern. There is a considerable amount of magnetite associated with the pyrrhotite in the sample.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Intermediate lava flow-unsubdivided 1 Andesite Schistose Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicOre
2PyrrhotiteEconomicOre
3MagnetiteEconomicOre
QuartzAlterationSilicification1UnknownDisseminated

Mineralization Comments

Dec 07, 2005 (B Nelson) - Pyrrhotite occurs in masses or veins in the deposit, but it is not mixed with the pyrite. A heavy fahlband (band of sulphide mineralization in a (schistose) dark metamorphic rock) strikes east for about a mile (1.6 km). The gossan capping had in several places been removed and test pits sunk. The largest of these was about twelve feet (3.7 m) deep and twelve feet (3.7 m) long across the strike of the deposit, which is here seen to consist of a very fine grained mixture of pyrite, pyrrhotite and silica. An average sample of the dump yielded 32.26 per cent of sulphur. (Fraleck 1907 p.177).



Mineral Record Details

References

Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District

Publication Number: M2232 Scale: 1:253,440    Date: 1973

Author: Carter M.W., McIlwaine W.H., Wisbey P.A.

Publisher Name: Ontario Division of Mines

Location:


Mono - Pyrite deposits of Ontario

Publication Number: MDC005 Page: 57-58  Date: 1967

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Schreiber-Duck Lake area

Publication Number: ARV30-04.001 Page: 11, 25  Date: 1998

Author: Hopkins P.E.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Schreiber-Duck Lake area, District of Thunder Bay

Publication Number: ARM30A Scale: 1:63,360    Date: 1998

Author: Hopkins P.E., Tanton T.L.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.

Publication Number: OFR5951 Page: 521-523  Date: 1996

Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.

Publisher Name: Ontario Geological Survey

Location:


Part - The southwestern part of the Schreiber area

Publication Number: ARV47-09.001 Page: 27-28  Date: 1998

Author: Harcourt G.A.

Publisher Name: Ontario Dept. of Mines

Location:


File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date:

Author:

Publisher Name:

Location: Thunder Bay RGP


Map - Schreiber area, District of Thunder Bay, Ontario

Publication Number: ARM47J Scale: 1:31,680    Date: 1997

Author: Bartley M.W., Harcourt G.A.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Schreiber sheet, District of Thunder Bay, geological compilation series

Publication Number: P0360 Scale: 1:126,720    Date: 1997

Author: Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Iron pyrites in Ontario

Publication Number: ARV16-01.007 Page: 177  Date: 1998

Author: Fraleck E.L.

Publisher Name: Ontario Bureau of Mines

Location:


Map - Geological series, Precambrian geology of the Schreiber area, east part, Thunder Bay District

Publication Number: P2391 Scale: 1:15,840    Date: 1981

Author: Carter M.W.

Publisher Name: Ontario Geological Survey

Location:


Part - Mines of northwest Ontario, parts 1 and 2

Publication Number: ARV10.004 Page: 88-89  Date: 1998

Author: Bow J.A., Carter W.E.H.

Publisher Name: Ontario Bureau of Mines

Location:


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