Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C08SE00007

Record: MDI42C08SE00007

General

Mineral Record Identification
Record Name(s) Bankfield Consolidated Eastern Group - 1943, Winabie Occurrence - 1945, Bankfield A Vein - 1943
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1982-Nov-24
Date Last Modified 2022-Sep-27
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Riggs

Latitude: 48° 16' 42.01"    Longitude: -84° 11' 29.09"

UTM Zone: 16    Easting: 708369   Northing: 5351050    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C08SE

Point Location Description: Vein on boundary between patented claim SSM 129816 and 129818

Location Method: Data Compilation

Access Description: The site is accessible by boat from Missanabie.



Exploration History

1943: H. Charlebois - discovery, prospecting. 1943: Bankfield Consolidated Mines Ltd. - trenching, 22 ddh (750 feet). 1945-46: Winabie Gold Mines Ltd. - ground geophysics, diamond drilling, stripping. 1983: Hemgold Resources Inc. - airborne geophysics. 1984: Cyr et al. - airborne geophysics. 1986: Muscocho Explorations Ltd. - mapping. 1988: Tenoga Consultants Inc. - airborne geophysics. 1987: Loydex Resources Inc. - ground geophysics.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Finan 0036 42C08NE0044 42C08NE0044
WP Riggs.12/ 2.10534 42C08SE0019 42C08SE0019
Riggs-0019A1/2.6373 42C08SW0089 42C08SW0089
WP Riggs.8/2.9961 42C08SE0652 42C08SE0652
WP Riggs.1/ 2.9891 42C08SE0654 42C08SE0654

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Geological Age: Archean  



Geology Comments

Sep 23, 2016 (A Wilson) - The Dog Lake Deformation Zone (DLDZ) is located in the central part of Riggs and West townships, where it is defined by a 1.5 to 2.0 km wide southeast-trending zone of moderately to strongly strained rocks. The DLDZ is characterized by both ductile and brittle-ductile shear zones which occur in two dominant orientations 90-100 degrees and 110-120 degrees. Shear zones at these orientations within the mafic to intermediate metavolcanic rocks are defined by 1 to 50 m of chlorite-calcite and, rarely, chlorite-iron carbonate schists. Shear zones within feldspar and quartz-feldspar-porphyry intrusions are defined by quartz-sericite schist. Narrow NE and NW trending brittle and brittle-ductile shear zones are also observed with the DLDZ.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Quartz-Feldspar Porphyry 1 Quartz-Feldspar Sheared Host
Vein 2 Quartz Host
Intermediate lava flow-unsubdivided 3 Sheared Near

Lithology Comments

Dec 07, 2005 (A Wilson) - The showing consists of veins and lenses of sugary quartz within a sheared quartz-feldspar porphyry.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
1PyriteEconomicGangue
2SphaleriteEconomicGangue
CarbonateAlterationCarbonatization1WeakDisseminated
SericiteAlterationSericitization2MediumReplacement

Mineralization Comments

Sep 23, 2016 (A Wilson) - The best assay obtained from the Bankfield drilling was 2.72 oz/t Au over 12 inches. Other assays ranged from 0.02 oz./t Au over 37 inches of 1.20 oz./t Au over 12 inches. Stringer zones occur in the porphyry over a total length of 1000 feet.



Mineral Record Details

Mineral Zones - Size and Shape

Rank: 1       Structure Type: Shear

Rank: 2       Structure Type: Vein

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Regular 304 1.5 245 85

References

Folio - Riggs Township, District of Algoma

Publication Number: GDIF292 Date: 1997

Author: Sault Ste Marie RGO

Publisher Name: Ontario Geological Survey

Location:


Map - Geological series, Missanabie area, Riggs Township, formerly Township 47, District of Algoma

Publication Number: P0944 Scale: 1:15,840    Date: 1974

Author: Srivastava P., Bennett G., Elmhirst F., Andrews M.D.

Publisher Name: Ontario Division of Mines

Location:


Map - Riggs and West townships, Algoma District

Publication Number: M2353 Scale: 1:31,680    Date: 1977

Author: Srivastava P., Bennett G., Elmhirst F., Andrews M.D.

Publisher Name: Ontario Geological Survey

Location:


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:


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 - Township 47 [Riggs Township], District of Algoma, Ontario

Publication Number: M1946-02 Scale: 1:31,680    Date: 1998

Author: Bruce E.L.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology of Township 47 [Riggs Township], Missinaibi area

Publication Number: ARV54-04 Page: 20-21  Date: 1997

Author: Bruce E.L.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Lochalsh-Missinaibi area, districts of Algoma and Sudbury, Ontario

Publication Number: ARM44C Scale: 1:95,040    Date: 1997

Author: Burwash E.M., Collins W.H., Thomson E.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Page: 36  Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:


MonoMap - Geology of Riggs and West townships, District of Algoma

Publication Number: R174 Page: 51-52  Date: 1978

Author: Srivastava P., Bennett G.

Publisher Name: Ontario Geological Survey

Location:


Article - The geological and structural setting of gold mineralization in the Missanabie-Renabie District of the Michipicoten greenstone belt, Wawa, Ontario

Publication Number: MP141.037 Page: 257-270  Date: 1997

Author: Heather K.B., Buck S.

Publisher Name: Ontario Geological Survey

Location:


Mono - Wawa mineral deposits data base

Publication Number: OFR5775 Page: 324  Date: 1991

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

Publisher Name: Ontario Geological Survey

Location:


Book - Gold Occurrences of the Wawa-Missinabie Area, unpublished report

Publication Number: Robinson Page: 68  Date: 1983

Author: Robinson, D.

Publisher Name:

Location: Timmins RGP


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: 205  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

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


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