Database name: |
Canadian Iron Formation |
Custodial agency: |
Geological Survey of Canada |
Compilers: |
G. A. Gross and E. M. Hillary |
Release date: |
2014-10-01 |
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Deposit name(s): |
Maltby Lake Iron Deposit (occurrence) |
Political location(s): |
Canada; Province or state: Nunavut; Subprovince or locality: South Baffin Island |
NTS map data: |
036C13 |
Deposit clan (type): |
iron formation |
Deposit (sub) types: |
Algoma type; Metamorphosed magnetite iron formation interbedded with amphibolite
.; Reference: Griffis, A.T., 1956: Small Geophysical Report, Foxe Basin, Baffin Island (017003); Mineral Assessment Report, Turner D, Oceanic Iron Ore Company of Canada Ltd (operator), Indian and Northern Affairs Canada, Publication code 017003, 1 maps. |
Deposit status: |
advanced project; Status comments: Resource: Maximum 200 million tons of 22-24 % Fe (AR 17003) |
Geologic province: |
Canadian Shield |
Geologic subprovince: |
Meta Incognita |
Commodities: |
Fe |
Geological ages: |
Precambrian (host rocks) |
Regional tectonic structure: |
fold(s) |
Host rocks: |
(1) sedimentary; iron formation; Metamorphic grade: amphibolite; Component: mineralization zoneInternal host rock structures: | massive | Individual lithologies: | iron formation - oxide (magnetite) |
(2) volcanic; mafic volcanic rocks; Metamorphic grade: amphibolite; Component: mineralization zoneExternal host rock forms: | flow/volcanic flow | Host rock protoliths: | basalt | Internal host rock structures: | banding | Individual lithologies: | amphibolite |
(3) metamorphic; paragneiss; Component: wall rockHost rock protoliths: | sediment |
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Metallogenic signatures: |
Fe |
Mineralogy: |
(mineralization / mineralization zone): quartz (mineralization - massive / mineralization zone): magnetite (mineralization - vein / mineralization zone): magnetite |
Deposit shape: |
tabular; Component: mineralization zone tabular; Component: wall rock |
Qualified comments: |
(Applies to: geophysical surveys) Dip needle survey was done in 1959 to examine the distribution of the iron formations on the property (AR 17015).
(Applies to: reserve/resource descriptions) Probably a limit of 200 million tons of 20 to 24 % Fe in magnetite. The ore has moderately higher phosphorus content (averages of massive samples 0.246 P2O5, of magnetite veins 0.424 % P2O5). Tonnage considered too small for a mining operation (AR 17003).
(Applies to: property geology) The Maltby Iron Deposit consists of highly metamorphosed bands of I.F. The I.F. is mainly magnetite and quartz with lesser amount of silicate. The I.F. is interbedded with amphibolite, that is made up of iron silicates and garnet. The outcrops around the deposit show a shallow synclinal structure. |
Links to other databases: |
NORMIN; Key value: 036CNW0001 |
Geophysical-chemical signature: |
Signature type: Dip needle; Response type: positive (strong) |
Samples data: |
(1) Sample type: rock - grab (select); Sample description: average of samples of massive magnetite; Collector: GriffisCommodities and grades in order of importance: | Fe: 34.8 percent | Reference number: Griffis, A.T., 1956: Small Geophysical Report, Foxe Basin, Baffin Island (017003); Mineral Assessment Report, Turner D, Oceanic Iron Ore Company of Canada Ltd (operator), Indian and Northern Affairs Canada, Publication code 017003, 1 maps. (2) Sample type: rock - grab (select); Sample description: Average of 2 samples from magnetite veins; Collector: GriffisCommodities and grades in order of importance: | Fe: 66.4 percent | Reference number: Griffis, A.T., 1956: Small Geophysical Report, Foxe Basin, Baffin Island (017003); Mineral Assessment Report, Turner D, Oceanic Iron Ore Company of Canada Ltd (operator), Indian and Northern Affairs Canada, Publication code 017003, 1 maps. |
References: |
Griffis, A.T., 1956 |
Small Geophysical Report, Foxe Basin, Baffin Island (017003) |
Mineral Assessment Report, Turner D, Oceanic Iron Ore Company of Canada Ltd (operator), Indian and Northern Affairs Canada, Publication code 017003, 1 maps. |
Seigel, H. O., 1958 |
Dip Needle Survey Maps on the Maltby Iron Deposit, Maltby Lake, Baffin Island (017015) |
Mineral Assessment Report, Seigel HO (operator), Indian and Northern Affairs Canada, Publication code 017015, 2 maps. |
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Resource data: |
Disclaimer - Reserves/Resource Data
Her Majesty the Queen in Right of Canada, represented by the Minister of Natural Resources (NRCan) does not warrant or guarantee the accuracy, completeness or fitness for any purpose of Reserve and Resource information (Data) contained in this database, including whether the Data is compliant with any securities regulations or standards, and NRCan does not assume any liability with respect to any damage or loss incurred as a result of the use made of the Data.
Resource and reserve figures are historical in nature. The Data source provided with each set of figures should be cited if the Data are re-reported. |
Estimate date: 1956; Component: mineralization zone; 200 million short tons ore; Combined with production?: no; Provisional entry?: no; Resource category: geological resourceGrade-commodity information: | Fe: 22 percent | Reference: Griffis, A.T., 1956: Small Geophysical Report, Foxe Basin, Baffin Island (017003); Mineral Assessment Report, Turner D, Oceanic Iron Ore Company of Canada Ltd (operator), Indian and Northern Affairs Canada, Publication code 017003, 1 maps. Percent weights allocated to deposit: 100.0% |