Ontario Geological Survey
Permanent Link to this Record:
MDI52K15SE00002
| Record Name(s) | Whitemud - 1957 |
|---|---|
| Related Record Type | SIMPLE |
| Record Status | Prospect |
| Date Created | 1984-Apr-19 |
| Date Last Modified | 2021-Nov-17 |
| Created By | Q Unknown |
| Revised By | Therese Pettigrew |
Primary Commodities: Iron
Township or Area: Whitemud Lake Area
Latitude: 50° 51' 36.58" Longitude: -92° 42' 30.13"
UTM Zone: 15 Easting: 520525 Northing: 5634315 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52K15SE
Point Location Description: Collar of DDH WH-10-01 from Assessment report 20000006735
Location Method: Data Compilation
Access Description: 55 km ENE of Ear Falls
1956: Newkirk Mining Corporation Limited contracted Aeromagnetic Surveys Ltd., who conducted an airborne magnetic Survey. 1957: Massberyl Lithium Co. Ltd. contracted Geotechnical Development Company Ltd. who conducted magnetic and electrical resistivity surveys and geological mapping. 1957: Quebec Labrador Development Co. Ltd. contracted Geotechnical Development Company Ltd. who conducted a magnetometer survey. Quebec Labrador Development Co. Ltd. drilled 13 holes totalling 6795 feet. 2010: Northern Iron Corp. carried out geological mapping, ground-based geophysics, and drilled 1 DDH totalling 208 m. 2011: Northern Iron Corp. drilled 1 DDH totalling 428.48 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.47117 | 20000006735 | 20000006735 |
| 2.50718 | 20000006701 | 20000006701 |
| 63.860 | 52K15NE0034 | 52K15NE0034 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Birch-Uchi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Is |
|---|
Aug 13, 2020 (Therese Pettigrew) - The property is underlain mainly by sequences of submarine sediments which have been regionally metamorphosed to the lower amphibolite/upper greenschist facies. Several granitic intrusive bodies ranging in size from less than half a km to the massive Bluffy Lake batholith over 60 km in length are emplaced in the metasediments semiplastically. Dominant foliation and bedding in the metasediments is observed trending west-southwest to east-northeast in the southern part of the claim block, and southwest-northeast in the northern part of the claim block, parallel to local strain corridors. Rocks dip sub vertically 75° to 90° towards the north, in the southern part of the claims. Sedimentary rocks are comprised mainly of thinly bedded cherty mudstones, greywackes, and fine sandstones. These sedimentary units host Archean banded iron formations (BIF) of the Algoma type, which form beds 1 to 5 m thick. They are composed mainly of oxide facies magnetite (taconite), and minor cherty beds. They are also the main economic target on the property. These banded iron formations lie parallel to bedding which is parallel to foliation, and are mainly fine grained, becoming slightly coarser grained proximal to granitic intrusions due to contact metamorphism (Assessment report 20000006735).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | ECONOMIC | ORE |
Feb 07, 2012 (A MCKEE) - IRON FORMATION: ALGOMA TYPE. 2010 Multiple intersections found ranging up to 31.92% Fe over 3m. Also reported 63% SiO2 over 2.75 m.
Aug 13, 2020 (Therese Pettigrew) - The Algoma-type banded iron formation (BIF) composed of oxide facies magnetite (taconite) is the primary target on the property. Drilling confirmed the presence of at least two distinct units of banded iron formation under the main anomaly 'A' composed predominantly of magnetite oxide facies (taconite) and supported the assumed folding of the banded iron formations. Magnetite in various grades was encountered interbedded with amphibolite grade clastics and intruded by pink granite dykes from 93.78 m to 138 m depth. The highest grades of iron intersected were 3 m of mineralization grading 31.92% Fe. Iron content averaged 31.01% Fe from 93.78 m to 102.79 m depth, and 22.82% Fe from 114.42 m to 138 m depth (Assessment report 20000006735). In DDH WH-11-01, the highest grades of iron intersected were 3 m of mineralization grading 48% Fe2O3 from 243 to 216 m depth. Iron content averaged 14.62% Fe2O3 from 84 to 138 m depth, and 30.65% Fe2O3 from 199.2 to 216 m depth (Assessment report 20000006701).
Map - Whitemud Lake area (Fredart-Whitemud lakes area), District of Kenora (Patricia Portion)
Publication Number: P0412 Scale: 1:15,840 Date: 1997
Author: Fenwick K.G.
Publisher Name: Ontario Dept. of Mines
Mono - Iron deposits of Ontario
Publication Number: MDC011 Scale: Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
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