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Ontario Geological Survey
Permanent Link to this Record:
MDI42C08SW00168
Record Name(s) | McCarthy-Webb Iron Range - 1918 |
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Related Record Type | Simple |
Related Record(s) | |
Record Status | Discretionary Occurrence |
Date Created | 2000-Nov-03 |
Date Last Modified | 2022-Apr-12 |
Created By | |
Revised By |
Primary Commodities: Iron
Township or Area: Finan
Latitude: 48° 16' 50.47" Longitude: -84° 27' 26.5"
UTM Zone: 16 Easting: 688631.39 Northing: 5350623.02 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C08SW
Point Location Description: Iron formation on former claim SSM 2055
Location Method: Data Compilation
Access Description: Take the new Goudreau Road from Highway 516 (Dubreuilville Road) for a distance of approximately 20 km to the junction of the old Goudreau Road. Turn west and drive approximately 3 km to where the powerline meets the road. Park on the powerline and walk approximately 3 km along the powerline access road to the south side of Webb Lake. Alternatively, drive to west along the old Goudreau road from the Magino mine entrance to a parking spot overlooking Webb Lake. Traverse appoximately 500 m to the south.
There is no record of exploration work having been conducted on the property.
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - The showing straddles the boundaries between the Northern and Southern Domains of the Goudreau Lake Deformation Zone. 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. There are several parallel high-strain zones within the Webb Lake Stock. These zones are parallel to the regional schistosity in the area. Individual quartz veins are localized within narrow, secondary, brittle-ductile shear fractures.
Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Host |
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Quartz-Feldspar Porphyry | 2 | Quartz-Feldspar | Hanging Wall | |
Mafic pillowed flow | 3 | Pillowed | Footwall |
Dec 07, 2005 (A Wilson) - The deposit was identified by the GSC in 1918. It was identifed by performing a dip-needle survey south of Webb Lake. They identifed stagnant pools of water that taste of iron salts and are depositing limonite on the bottom.
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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1 | Limonite | Economic | Ore |
Rank | Classification |
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1 | Sedimentary |
Rank | Characteristic |
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1 | Unconsolidated |
Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
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Unknown | 1219 |
Map - Missinaibi area, Algoma District, Ontario
Publication Number: Map 2050 Scale: 1:63,360 Date: 1926
Author: Collins, W H; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/108179
MonoMap - Geology of Aguonie, Bird, Finan and Jacobson Townships, District of Algoma
Publication Number: OFR5588 Page: 128-129 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian geology, Finan Township
Publication Number: P3168 Scale: 1:15,840 Date: 1990
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Publication - Michipicoten Iron Ranges; Geological Survey of Canada, Memoir 147
Publication Number: GSC Memoir 147 Page: 111 Date: 1926
Author: Collins, W H; Quirke, T T; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100849
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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office