Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42C08SW00183

Record: MDI42C08SW00183

General

Mineral Record Identification
Record Name(s) Watson/Longbow Sample M-13 - 1998
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 2001-May-23
Date Last Modified 2022-Feb-23
Created By
Revised By

Commodities

Primary Commodities: Copper, Gold



Location

Township or Area: Riggs

Latitude: 48° 20' 13.85"    Longitude: -84° 14' 17.46"

UTM Zone: 16    Easting: 704664   Northing: 5357464    UTM Datum: NAD83

Resident Geologist District: Sault Ste. Marie

NTS Grid: 42C08SW

Point Location Description: Trenches on claim 810298

Location Method: Based on Assessment

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



Exploration History

1987-2000: Watson Lake Resources/Longbow Resources - mapping, sampling, stripping, trenching; recutting of claim lines.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
63.5166/OM87-7-C-090 42C08SW0845 42C08SW0845
2.17884 42C08SE2001 42C08SE2001
WP Riggs.21/2.11596 42C08SW0610 42C08SW0610
WP Riggs.22/2.11597 42C08SW0847 42C08SW0847
WP Riggs.40/ W9550-00069/W9630-00075 42C08SE0020 42C08SE0020
WP Riggs.42/2.17778 42C08SE0037 42C08SE0037
WP Riggs.46/ 2.18881 42C08SE2002 42C08SE2002

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Michipicoten

Geological Age: Neoarchean  



Geology Comments

Sep 26, 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, sub-parallel 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
Ironstone-unsubdivided 1 Host
Intermediate lava flow-unsubdivided 2 Hanging Wall

Lithology Comments

Dec 07, 2005 (A Wilson) - Elevated gold and copper values have been obtained from a folded iron formation hosted by intermediate to mafic metavolcanic rocks.




Mineralization Comments

Dec 07, 2005 (A Wilson) - Grab samples from a series of bedrock trenches returned assays of 13.85 g/t Au and 30700 ppm Cu; 3870 ppb Au and 30400 ppm Cu.



Mineral Record Details

Characteristics
Rank Characteristic            
1 Disseminated

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 Scale:     Date: 1997

Author: Heather K.B., Buck S.

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:


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