Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C03SW00058

Record: MDI42C03SW00058

General

Mineral Record Identification
Record Name(s) Trench MCT-01 - 1999
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 2001-Oct-29
Date Last Modified 2022-Sep-12
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Mishibishu Lake Area

Latitude: 48° 2' 27.03"    Longitude: -85° 27' 5.3"

UTM Zone: 16    Easting: 615420.57   Northing: 5321999.75    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C03SW

Point Location Description: Trenched area at approximately L1700E,21900N on Battle Mountain Gold grid

Location Method: Based on Assessment

Access Description: The property is accessible via the Eagle River Mine Road. This site is located approximatley 35 to 45 km south on the Eagle River Mine road and then overland by a skidder road and ATV trails.



Exploration History

1987: San Paulo Exploration Ltd. - airborne geophysics. 1996-98: Murgor Resources Inc. - prospecting, sampling, compilation, ground geophysics, mapping. 1998-99: Battle Mountain Gold - trenching, geochemistry, mapping.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
WP Mishibishu Lake.62 42C03SW2008 42C03SW2008
WP Mishibishu Lake.56 42C03SW2002 42C03SW2002
WP Mishibishu Lake.55 42C03SW0049 42C03SW0049
WP Mishibishu Lake.46 42C04SE0025 42C04SE0025
WP Mishibishu Lake.10 42C03SW0080 42C03SW0080

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Tectonic Assemblage: Catfish

Geological Age: Neoarchean   Geochronological Age: 2.7 GA   Geochron. Age Ref.: GOO VOL 1



Geology Comments

Dec 07, 2005 (A Wilson) - The strike length of the RLDZ is 8 km and the maximum width is 1 km. The RLDZ is centred within a clastic metasedimentary rock sequence which exhibits sheared contacts with felsic intrusive rocks to the north and mafic metavolcanics to the south. The style of deformation and alteration observed in the RLDZ is similar to, yet not as intensely developed as the MDZ. The penetrative foliation strikes 285, dips moderately steeply to the north. Variable trending, moderately to steeply plunging stretchin lineations are commonly obscured or overprinted by crenulation lineattions. The RLDZ possesses structural characteristics similar to the other deformation zones in the belt. Felsic intrusive dikes/sills are common and concentrated within the central and northern parts of the zone, ranging in thickness from centimetres to several hundred metres.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz-Carbonate Host
Terrigenous-Clastic-Unsubdivided 2 Siltstone-Greywacke Sheared Host

Lithology Comments

Dec 07, 2005 (A Wilson) - The sedimentary units vary from greywacke to siltstone to locally argillite. The sediments are well laminated and display a well developed foliation. Locally the sediments have been hghly deformed and show well developed kink banding. A zone of mederate to strong ankerite altered siltstones up to 100 m wide have been exposed in a series of trenches. The trenching covered a highly folded fold nose area which has been intruded by feldspar porphyry and quartz veins.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
AnkeriteAlterationCarbonatization1MediumReplacement

Mineralization Comments

Dec 07, 2005 (A Wilson) - A trench sample collected by Battle Mountain Gold returned an assay of 1.51 g/t Au.



Mineral Record Details

References

Map - Geological series, Precambrian geology, Mishibishu Lake area, northeastern section, districts of Thunder Bay and Algoma

Publication Number: P2970 Scale: 1:15,840    Date: 1986

Author: Bowen R.P., Logothetis J., Heather K.B.

Publisher Name: Ontario Geological Survey

Location:


Map - Precambrian geology, Mishibishu Lake area, Mishibishu Lake sheet

Publication Number: P3152 Scale: 1:15,840    Date: 1992

Author: Reid R.G., Bowen R.P., Heather K.B., Logothetis J., Reilly B.A.

Publisher Name: Ontario Geological Survey

Location:


Map - Operation Pukaskwa, University River sheet, districts of Thunder Bay and Algoma

Publication Number: P0507 Scale: 1:63,360    Date: 1997

Author: Bennett G., Thurston P.C., Giguere J.F.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Operation Pukaskwa, districts of Algoma and Thunder Bay

Publication Number: P0541 Scale: 1:126,720    Date: 1997

Author: Bennett G., Thurston P.C., Giguere J.F.

Publisher Name: Ontario Dept. of Mines

Location:


Map - University River, Algoma and Thunder Bay districts

Publication Number: M2333 Scale: 1:63,360    Date: 1976

Author: Bennett G., Thurston P.C., Giguere J.F.

Publisher Name: Ontario Division of Mines

Location:


Map - Mishibishu Lake area, District of Thunder Bay, Ontario

Publication Number: ARM49J Scale: 1:63,360    Date: 1997

Author: Evans E.L.

Publisher Name: Ontario Dept. of Mines

Location:


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