Ontario Geological Survey
Permanent Link to this Record:
MDI42C02SE00111
| Record Name(s) | Wilks-Arnott Iron Range - 1926, Ross-Arnott Claims - 1915 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Mar-04 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Chabanel
Latitude: 48° 5' 3.01" Longitude: -84° 40' 31.99"
UTM Zone: 16 Easting: 673106 Northing: 5328269 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02SE
Point Location Description: Unnamed pit east of Mildred Lake on P2439
Location Method: AMIS Site Visit
Access Description: The site lies 100 metres south of Mildred Lake near a small pond called Busky Lake.
Pre-1918: trenching, 4 adits and shaft. 1949-50: Jalore Mining Company Ltd - mapping, 7 ddh (982 ft).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Chabanel 0050 | 42C02SE0072 | 42C02SE0072 |
| Chabanel 0040 | 42C02SE8786 | 42C02SE8786 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: OFR5888
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - The Wilkes-Arnott iron range is not part of the Michipicoten iron formation. It accompanies a mafic metavolcanic flow in a section of clastic metasediments that lie stratigraphically above the Lucy Iron Range.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic massive flow | 1 | Basalt | Massive | Footwall |
|---|---|---|---|---|
| Sulphide Ironstone | 2 | Sulphide-Facies | Host | |
| Terrigenous-Clastic-Unsubdivided | 3 | Argillite | Hanging Wall |
Jan 08, 2016 (A Wilson) - The iron formation overlies a massive mafic flow and is in turn overlain conformably by an argillite unit that is 10 m thick. This iron formation has been interpreted as a slump or debris flow deposit possibly derived by erosion of the Michipicoten iron formation lying below it. The underlying mafic flow is not laterally extensive suggesting that the mafic flow and iron formation debris deposit were both topographically controlled at the time of deposition. The iron formation has been described as consisting of silca and sulphide and is associated with massive pyrite and siderite. Descriptions written in 1926 indicate that the surface of the iron formation weathers to a porous black gossan.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Siderite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore |
Dec 07, 2005 (A Wilson) - Pyrite concretions, up to 3 cm in diameter, angular crustiform fragments of pyrite and angular chert fragments are found in an oxidized matrix. An analysis of the iron formation in 1949 returned values of 8.42% Fe, 45.20% Si, 9.58% Ca, 0.77% MgO and 0.19 % Mn. No siderite could be confirmed by OGS crews in 1982.
| Rank | Classification |
|---|---|
| 1 | Sedimentary |
| Rank | Characteristic |
|---|---|
| 1 | Unknown |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 240 | 7 | 90 | 80 | 2750 MA | OFR5888 |
Map - Geological series, Precambrian geology of Chabanel Township, Algoma District
Publication Number: P2439 Scale: 1:15,840 Date: 1982
Author: Sage R.P., Rebic Z., Abercrombie S., Neale K., MacMillan D.W., England D., Calvert T.
Publisher Name: Ontario Geological Survey
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Scale: Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Chabanel, Esquega, Lastheels and McMurray Townships, District of Algoma
Publication Number: OFR5586 Scale: Date: 1993
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 Scale: 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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