Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C07SE00040

Record: MDI42C07SE00040

General

Mineral Record Identification
Record Name(s) Dumas Copper Occurrence - 1963
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Jan-08
Date Last Modified 2022-Sep-07
Created By
Revised By

Commodities

Primary Commodities: Copper



Location

Township or Area: Dumas

Latitude: 48° 19' 50.95"    Longitude: -84° 42' 21.3"

UTM Zone: 16    Easting: 670026.16   Northing: 5355613.72    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C07SE

Point Location Description: Blasted trench on south side of highway

Location Method: Data Compilation

Access Description: The occurrence is located on the south side of Highway 519 approximately 3 km west of the Twin Lake side road.



Exploration History

1963: Algoma Central Railway Exploration Department - sampling. 1967: R. Godin - trenching, prospecting.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Dumas 0010-B1 42C07SE0001 42C07SE0001
0010A1 42C08NE0047 42C08NE0047

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Geological Age: Neoarchean   Geochronological Age: 2700 MA   Geochron. Age Ref.: GOO VOL 1 P. 511



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Tonalite 1 Host

Lithology Comments

Dec 07, 2005 (A Wilson) - The occurrence is described as consisting of a streak of chalcopyrite within a mafic streak in foliated granite. The darker streak is probably a melanosome enclosed within the batholith.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ChalcopyriteEconomicOre
2MalachiteEconomicOre
3BorniteEconomicOre

Mineralization Comments

Dec 07, 2005 (A Wilson) - A grab sample of the mineralized material returned an assay of 2.4% Cu.



Mineral Record Details

References

Map - Geological compilation series, Wawa sheet, districts of Algoma and Sudbury

Publication Number: P0640 Scale: 1:126,720    Date: 1997

Author: Leahy E.J., Rupert R.J., Giblin P.E., Giguere J.F.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


Folio - Dumas Township, District of Algoma

Publication Number: GDIF290 Date: 1997

Author: Sault Ste Marie RGO

Publisher Name: Ontario Geological Survey

Location:


Map - Manitouwadge-Wawa sheet, geological compilation series, Algoma, Cochrane, Sudbury and Thunder Bay districts

Publication Number: M2220 Scale: 1:253,440    Date: 1972

Author: Milne V.G., Giblin P.E., Bennett G., Thurston P.C., Wolfe W.J., Giguere J.F., Leahy E.J., Rupert R.J.

Publisher Name: Ontario Division of Mines

Location:


Map - Precambrian Geology Compilation Series - White River Sheet

Publication Number: M2666 Scale: 1:250,000    Date: 2001

Author: Santaguida F.

Publisher Name: Ontario Geological Survey

Location:


Mono - Wawa mineral deposits data base

Publication Number: OFR5775 Page: 167  Date: 1991

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

Publisher Name: Ontario Geological Survey

Location:


Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 108  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:


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

Publication Number: GSC OF 1087 Page: 125  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