Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A06SE00019

Record: MDI42A06SE00019

General

Mineral Record Identification
Record Name(s) R. E. Allerston - 1969, Allerston-Eldorado - 1985, Granges Trench300w - 1989
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Jan-31
Date Last Modified 2023-Feb-16
Created By
Revised By

Commodities

Primary Commodities: Copper, Nickel

Secondary Commodities: Iron



Location

Township or Area: Eldorado

Latitude: 48° 19' 8.88"    Longitude: -81° 7' 4.54"

UTM Zone: 17    Easting: 491257.443   Northing: 5351778.119    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42A06SE

Point Location Description: Grab sample

Location Method: Other Literature

Access Description: The site is easily accessible by driving south from South Porcupine along the Springs Road.



Exploration History

Pre 1966: trenching. 1966: Black River Mining Ltd. - ground geophysics. 1970-73: International Nickel Co. - ground geophysics, diamond drilling. 1989-90: Granges Inc. - mapping, ground geophysics, trenching, overburden drilling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-1272, 63.1937 42A06SE0116 42A06SE0116
T-687, 63.2751 42A06SE0102 42A06SE0102
T-3363, 2.13249 42A06SE0084 42A06SE0084
26, T-0687 42A06SE0135 42A06SE0135
28, T-0687 42A06SE0126 42A06SE0126
OM91-005, T-3363 42A06SE0057 42A06SE0057

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Neoarchean   Geochronological Age: 2700 MA  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Ironstone-unsubdivided 1 Contains
Felsic Tuff 2 Tuff Near

Lithology Comments

Dec 07, 2005 (A Wilson) - The sample site is described as a narrow layer of iron formation within an outcrop of dominantly felsic pyroclastics.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ChalcopyriteEconomicOre
1PyriteEconomicGangue

Mineralization Comments

Dec 07, 2005 (A Wilson) - A grab sample collected by D. Pyke returned an assay of 0.16% Cu. Grab samples from the Granges trench returned Ni values up to 2000 ppm in ultramafic.



Mineral Record Details

References

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: 42A-88  Date: 1985

Author: Rose, D. G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999


Map - Adams and Eldorado townships, Timiskaming District

Publication Number: M2274 Scale: 1:31,680    Date: 1974

Author: Pyke D.R.

Publisher Name: Ontario Division of Mines

Location:


Map - Eldorado Township, District of Timiskaming

Publication Number: P0572 Scale: 1:15,840    Date: 1997

Author: Pyke D.R.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Geology of Adams and Eldorado townships, District of Cochrane

Publication Number: R121 Page: 28  Date: 1975

Author: Pyke D.R.

Publisher Name: Ontario Division of Mines

Location:


Map - Timmins data series, Eldorado Township, District of Cochrane

Publication Number: P2114 Scale: 1:15,840    Date: 1980

Author: Hunt D.S., MacRae B.A., Maharaj D.

Publisher Name: Ontario Geological Survey

Location:


Map - Timmins, Precambrian geology

Publication Number: M2455 Scale: 1:50,000    Date: 1982

Author: Pyke D.R.

Publisher Name: Ontario Geological Survey

Location:


Map - Geological Compilation of the Timmins Area, Abitibi Greenstone Belt

Publication Number: P3379 Scale: 1:100,000    Date: 1998

Author: Ayer J.A., Trowell N.F.

Publisher Name:

Location:


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For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office