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Ontario Geological Survey
Permanent Link to this Record:
MDI42C02NE00017
| Record Name(s) | Magpie Iron Range - 1909, Magpie Mine - 1909 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine With Reserves or Resources |
| Date Created | 1980-Jul-29 |
| Date Last Modified | 2022-Oct-20 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Leclaire
Latitude: 48° 12' 46.14" Longitude: -84° 42' 57.69"
UTM Zone: 16 Easting: 669667.4 Northing: 5342476.62 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02NE
Point Location Description: Occurrence 3c map P.2636
Location Method: Conversion from MDI
Access Description: The Magpie Mine is accessible by boat from Steephill Falls power dam. The Magpie River Reservoir has flooded to the formerr railway level. From this point the mine is accessible by a 2.5 - 3 km traverse. Alternately, the mine site can be accessed by an old bush road (McCormick Lake road) east from its junction with Highway 17 for a distance of approximately 12 km.
1909-1910: Lake Superior Corporation Ltd. - property staked, trenched, stripped, diamond drilling (7224.2 ft). 1910: Lake Superior Corporation Ltd. - sinking of 4 compartment shaft; main production shaft eventually reached 611 feet. 1911: Lake Superior Corporation Ltd. - roasting plant constructed 1911-1914: mining of deposit, operations suspended in October 1914 due to low price of iron/steel; 1915 - 1921: mining resumes. Mine closed March 8 1921. 1951: Jalore Mining Company - detailed mapping. 1951-1953: Algoma Steel Corporation Ltd. - 4 ddh (5512 ft.).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Leclaire-0012-A1 | 42C02NE0602 | 42C02NE0602 |
| Leclaire-0013 | 42C02NE0609 | 42C02NE0609 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Catfish
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: OFR 5888
Dec 07, 2005 (A Wilson) - The Magpie Iron Range extends from Iron Knob, where it bends sharply and becomes the Alice Iron Range. The west end of the range extends to just west of the large diabase dike that cuts the Magpie Iron Range and other, short, faulted segments of the iron formation occur to the northwest. These segments have been offset by a series of right lateral faults. The Magpie Iron Range, along with the Alice Iron Range, may define a minor fold on the south side of the Centre Anticline of the greenstone belt.
| Rock Type | Rank | Composition | Texture | Relationship | Carbonate Ironstone | 1 | Carbonate (Siderite) Facies | Host |
|---|---|---|---|---|
| Intermediate lava flow-unsubdivided | 2 | Intermediate To Mafic | Hanging Wall | |
| Breccia-unsubdivided | 3 | Footwall | ||
| Lamprophyre-Unsubdivided | 4 | Near |
Dec 07, 2005 (A Wilson) - The Magpie Iron Formation consists only of the lower siderite portion of the iron formation. The upper sulphide, chert, magnetite and graphite facies are absent. The iron formation becomes magnetite-rich to the east where it merges with the Alice Range and to the west. The central part contains the least amount of magnetite. The presence of magnetite diminishes the value of the ore. The rocks immediately overlying the iron formation are chloritic schists that grade into intermediate (dacitic) metavolcanics. These rocks are predominately massive although a few narrow tuffaceous units have also been observed. To the south of the iron formation the volcanic breccia is composed of up to 50% fragments within a siliceous matrix. A mica dike (lamprophyre? kimberlite?) was reported on the 3rd level of the mine. This mass reportedly increased in width with depth in the mine and significantly reduced the volume of the ore. Elliptical lense like masses of carbonate have been observed in samples of this material taken from the waste piles at the mine.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Siderite | Economic | Ore | ||||
| 1 | Magnetite | Economic | Gangue | ||||
| 2 | Pyrite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - The ore was described as being very fine-grained, dense, buff grey to pale yellow carbonate sprinkled with pyrite. Analysis of diamond drill core from a hole drilled beneath the workings in 1951-53 assayed 43.37% Fe, 9.66% S and 16.05% Si over 15 feet. Roasting of the ore produced a sintered product grading 50.10% Fe, 9.14% Si and 2.74% Mn.
| Rank | Classification |
|---|---|
| 1 | Sedimentary |
| Rank | Characteristic |
|---|---|
| 2 | Massive |
| 1 | Stratiform |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 640 | 15 | 270 | 90 | 2750 MA | OFR 5888 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Magpie Mine | 1921 | Unclassified | 332400 | OFR5587 | Reserve figures from Lake Superior Company at time of mine closure | Iron 36 NA |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1921 | 64708 |
Iron |
TONNAGE IS SIDERITE PRODUCED - NOT ORE | |
| 1920 | 117715 |
Iron |
TONNAGE IS SINTER PRODUCED - NOT ORE | |
| 1919 | 210479 |
Iron |
TONNAGE IS SINTER PRODUCED - NOT ORE | |
| 1918 | 187148 |
Iron |
TONNAGE IS SINTER PRODUCED - NOT ORE | |
| 1917 | 218897 |
Iron |
TONNAGE IS SINTER PRODUCED - NOT ORE | |
| 1916 | 233258 |
Iron |
TONNAGE IS SINTER PRODUCED - NOT ORE | |
| 1915 | 143732 |
Iron |
TONNAGE IS SINTER PRODUCED NOT ORE | |
| 1914 | 112836 |
Iron |
TONNAGE IS SINTER PRODUCED - NOT ORE | |
| 1913 | 24738 | TONNAGE IS OF SINTER PRODUCED, NOT ORE |
File - Resident Geologist files Leclaire-0015-A1, WP Esquega.33
Publication Number: Date:
Author:
Publisher Name:
Location: SSM RGP
Map - Michipicoten area, Algoma District, Ontario
Publication Number: Map 1972 Scale: 1:63,360 Date: 1923
Author: Collins, W H; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/107947
Map - Michipicoten area, compilation sheet, District of Algoma
Publication Number: P0184 Scale: 1:126,720 Date: 1997
Author: Goodwin A.M.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Leclaire Township - unpublished GDIF
Publication Number: GDIF Date: 1987
Author: Resident Geologist Staff
Publisher Name:
Location: Timmins RGP
Map - Manitouwadge-Wawa sheet, geological compilation series, Algoma, Cochrane, Sudbury and Thunder Bay districts
Publication Number: M2220 Scale: 1:253,440 Date: 1972
Author: Milne V.G., Giblin P.E., Bennett G., Thurston P.C., Wolfe W.J., Giguere J.F., Leahy E.J., Rupert R.J.
Publisher Name: Ontario Division of Mines
Location:
Map - Geological series, Precambrian geology, Leclaire Township, District of Algoma
Publication Number: P2636 Scale: 1:15,840 Date: 1985
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: 95-97 Date: 1926
Author: Collins, W H; Quirke, T T; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100849
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 72 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 242 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma
Publication Number: OFR5587 Page: 291-297 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
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