Ontario Geological Survey
Permanent Link to this Record:
MDI42C02SE00003
| Record Name(s) | Lucy Iron Mine - 1967, Brooks Lake Iron Range - 1926, Lucy Iron Range - 1946, Ruth and Lucy Deposits - 1946 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine With Reserves or Resources |
| Date Created | 1982-Sep-30 |
| Date Last Modified | 2023-Jan-09 |
| Created By | |
| Revised By |
Primary Commodities: Iron
Township or Area: Chabanel
Latitude: 48° 4' 26.17" Longitude: -84° 40' 50.71"
UTM Zone: 16 Easting: 672753 Northing: 5327120 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02SE
Point Location Description: open pit
Location Method: AMIS Site Visit
Access Description: Gravel road from Hwy.101 (at north shore of Wawa Lake). Road continues approximately 40 km to the Eleanor Mine where the east fork is followed for another 4.5km to the Ruth Mine site. Another road is followed west for 1.3km to the site.
1899: property staked by A. Goetz. 1908: A. Goetz - trenching. 1941 - property acquired by Frobisher Exploration. 1947: Jones and Laughlin signed an agreement with Sherritt-Gordon to lease Ruth and Lucy deposits. 1947-49: Jalore Mining Company Ltd. - geological mapping and diamond drilling (35 164 ft.). 1967: Algoma Steel Corporation - optioned property for 99 years, development and operation of open pit; 44 ddh (6 198.5 ft.).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Chabanel 0024 / 63.3619 | 42C02SE8788 | 42C02SE8788 |
| Chabanel 0025 | 42C02SE0005 | 42C02SE0005 |
| 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
Jan 09, 2016 (A Wilson) - The Lucy Iron Range is one of 32 ranges that make up the Michipicoten Iron Formation. It is the uppermost phase of the second volcanic cycle within the Michipicoten area. The base of the 2750 cycle consists of pillowed and massive mafic metavolcanic rocks. Lying above the mafic rocks is a thick sequence of intermediate to felsic metavolcanic rocks. These rocks consist of tuff, lapilli-tuff, breccia and massive flows. Within 50 m of the base of the overlying iron formation there are numerous cross-cutting silica and siderite-cemented explosion breccias. The Lucy range has been highly folded. The Lucy range is the eastern extension of the Eleanor Iron Range and has been separated from the Eleanor by roughly 3500 m of left lateral faulting.
| Rock Type | Rank | Composition | Texture | Relationship | Carbonate Ironstone | 1 | Carbonate Facies | Host |
|---|---|---|---|---|
| Felsic Tuff | 2 | Tuff, Crystal Tuff | Footwall | |
| Mafic lava flow-unsubdivided | 3 | Basalt | Pillowed, Massive | Hanging Wall |
Jan 09, 2016 (A Wilson) - The iron formation consists of a thick siderite unit interbedded with some narrow pyrite units. Overlying the carbonate facies is a sulphide facies iron formation and overlying this unit is a chert-wacke facies. All three facies are well exposed in the immediate pit area. The range consists of a siderite-pyrite-quartz iron formation, carbonate and sulphide facies which averages 340 feet in width. The lower 70 feet of the iron formation comprise the siderite and pyrite member and the overlying 270 feet, the banded silica member.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Siderite | Economic | Ore | ||||
| 1 | Arsenopyrite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - At the base of the siderite formation, arsenopyrite is abundant and decreases in volume upward to the sulphide facies. The only published analyses for the iron range indicate that the iron content in the siderite ranges from 29.40% Fe to 35.40% Fe. The iron content of the cherty magnetite facies to the west of the open pit averages 18.40% Fe.
| Rank | Classification |
|---|---|
| 1 | Sedimentary |
| Rank | Characteristic |
|---|---|
| 1 | Concordant |
| 2 | Layered |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 800 | 25 | 50 | 80 | 2750 MA | OFR5888 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Lucy Pit | 1987 | Unclassified | 13780000 | GAC-MAC Field Guide A6, 1991 Conference | grade is from Algoma Ore internal document 1972 | Iron 33.2 % |
| Lucy Pit 2 | 1963 | Probable | 2811600 | WP Esquega.33, 2,556,000 tons @ 33.86% Fe | Algoma Ore Properties Estimate, Non 43-101 Compliant | Iron 33.86 %, Silica 7.43 %, Sulphur/Pyrite 3.7 % |
| Lucy Pit 1 | 1963 | Probable | 12111000 | WP Esquega.33, 11,010,000 tons @ 33.09% Fe | deposit drilled at 250 ft. intervals to depth of 600 ft., Non 43-101 Compliant | Iron 33.09 %, Silica 8.18 %, Sulphur/Pyrite 4.52 % |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1970 | 167385 |
Iron 167385 Tons |
total mass of iron unknown - Ruth and Lucy production published jointly | |
| 1969 | 351015 |
Iron 351015 Tons |
total mass of iron unknown - Ruth and Lucy production published jointly | |
| 1968 | 671114 |
Iron 671114 Tons |
total mass of iron unknown - Ruth and Lucy production published jointly | |
| 1967 | 30475 |
Iron 30475 Tons |
total mass of iron unknown - Ruth and Lucy production published jointly |
File - Resident Geologist file WP Esquega 33
Publication Number: Date:
Author:
Publisher Name:
Location: SSM RGP office
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:
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:
Map - Precambrian Geology, Michipicoten Greenstone Belt, Central Portion
Publication Number: P3303 Scale: 1:50,000 Date: 1994
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Folio - Chabanel Township - unpublished GDIF
Publication Number: GDIF Date: 1987
Author: Resident Geologist Staff
Publisher Name: Ontario Geological Survey
Location: SSM RGO
Map - Lucy iron range, townships 28 and 29, Range 24 [Esquega and Chabanel townships], District of Algoma, Ontario
Publication Number: M1946-06 Scale: 1:9,600 Date: 1997
Author: Moore E.S., Armstrong H.S.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Iron deposits in the District of Algoma
Publication Number: ARV55-04.001 Page: 74-82 Date: 1997
Author: Moore E.S., Armstrong H.S.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 3, 67 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 138 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 Page: 386-387 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Michipicoten Greenstone Belt
Publication Number: OFR5888 Date: 1994
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: 88-89 Date: 1926
Author: Collins, W H; Quirke, T T; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100849
Part - Iron ranges of northwestern Ontario
Publication Number: ARV11.011 Page: 161-162 Date: 1998
Author: Coleman A.P.
Publisher Name: Ontario Bureau of Mines
Location:
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