Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C08SW00184

Record: MDI42C08SW00184

General

Mineral Record Identification
Record Name(s) Longbow Sample N-25 - 1998, Claim SSM 12220 - 1996
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 2001-May-23
Date Last Modified 2023-Jan-09
Created By
Revised By

Commodities

Primary Commodities: Gold, Copper



Location

Township or Area: Riggs

Latitude: 48° 19' 56.32"    Longitude: -84° 14' 17.55"

UTM Zone: 16    Easting: 704681.56   Northing: 5356922.84    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C08SW

Point Location Description: Stripped area in north part of patented claim SSM 12220

Location Method: Based on Assessment

Access Description: The site is accessible by driving southeast from the town of Lochalsh along a series of disused forestry roads.



Exploration History

Pre-1930: trenching. 1986-2000: Watson Resources/Longbow Resources - stripping, trenching, sampling, mapping. 2007: J.C. Archibald – sampling, prospecting.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
WP.Riggs.51/2.19750 42C08SE2006 42C08SE2006
WP.Riggs.54/2.20115 42C08SE2008 42C08SE2008
2.17884 42C08SE2001 42C08SE2001
2.38941 20000003188 20000003188
WP Riggs.46/2.18881 42C08SE2002 42C08SE2002
WP Riggs.42/2.17778 42C08SE0037 42C08SE0037
W9650.00076 42C08SE0022 42C08SE0022
WP Riggs.22/2.11597 42C08SW0847 42C08SW0847
WP Riggs.21/2.11596 42C08SW0610 42C08SW0610
W9650.00075 42C08SE0035 42C08SE0035

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Geological Age: Neoarchean  



Geology Comments

Sep 24, 2016 (A Wilson) - The area lies between two NNW trending faults and the observed deformation is believed to be related to the Goudreau Lake Deformation Zone that lies to the west. The GLDZ is up to 4.5 km in width and strikes in a gentle sigmoid-form for at least 30 km, subparallel to the stratigraphy and the regional foliation. In the immediate Goudreau-Lochalsh area, the GLDZ is coincident with a major contact between Cycle 2 and Cycle 3 volcanics. There is a strong structural control of the gold-bearing quartz veins systems within each of the 070-075 striking high-strain zones within the deformation zone. The Eastern Domain of the GLDZ is 9 km long and 2 km wide and contains narrow brittle and brittle-ductile high-strain zones displaying dextral, oblique slip displacement. Within the eastern domain, high-strain zones (as well as laminated, quartz-tourmaline and/or quartz-Fe-carbonate veins, fractures and felsic porphyry dikes) are dominantly parallel or at low angles to the east-striking regional foliation. The eastern domain is truncated on the west by the NW-trending Maskinonge Lake Fault.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Schist-Unsubdivided 1 Quartz-Sericite Host
Intermediate lava flow-unsubdivided 2 Host

Lithology Comments

Dec 07, 2005 (A Wilson) - Elevated copper and gold values were obtained from a rusty shear zone within mafic to intermediate metavolcanics.




Mineralization

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

Mineralization Comments

Sep 24, 2016 (A Wilson) - Grab samples collected from trenches on the patented claim before 1940 returned assays up to 0.17 oz./t Au from a rusty shear zone. A series of grab samples collected from the shear zone in 1998 returned values ranging from 1080 to 5280 ppm Cu. These grab samples returned values that were low in gold.



Mineral Record Details

References

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:


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:


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:


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