Deposit number | Country | Location | Names | Commodities |
20132 | Canada (Nunavut) | 68.13.38 N -- 085.29.16 W | Borealis - 1 North Extension; West Melville Iron Deposits | Fe |
Database name: | Canadian Iron Formation | |||||||||
Custodial agency: | Geological Survey of Canada | |||||||||
Compilers: | G. A. Gross and E. M. Hillary | |||||||||
Release date: | 2014-10-01 | |||||||||
Deposit name(s): | Borealis - 1 North Extension (occurrence); West Melville Iron Deposits (occurrence) | |||||||||
Political location(s): | Canada; Province or state: Nunavut; Subprovince or locality: Melville Peninsula | |||||||||
NTS map data: | 047B02 (Folster Lake) | |||||||||
Deposit clan (type): | iron formation | |||||||||
Deposit (sub) types: | Algoma type; Reference: Underhill, D. H., 1970: Report on the 1970 Mineral Exploration Program, Melville Peninsula (060744); Mineral Assessment Report, Borealis Exploration Ltd; UnderhillDH (Norman H. Ursel Associates Ltd) (operator), Indian and Northern Affairs Canada, Publication code 060744 | |||||||||
Deposit status: | advanced project; Size category: significant; Status comments: Indicated reserves based on surface areas determined by planimeter - 47 million metric tons. | |||||||||
Geologic province: | Canadian Shield | |||||||||
Geologic subprovince: | Rae craton | |||||||||
Deposit object located: | centre of mineralized zone | |||||||||
Commodities: | Fe | |||||||||
Mineralization styles: | stratiform (mineralization zone); massive (mineralization zone) | |||||||||
Geological ages: | Archean (host rocks) Archean (mineralization) | |||||||||
Coincident features: | fault(s) | |||||||||
Host rocks: | (1) sedimentary; iron formation; Depositional setting: shallow marine; Metamorphic grade: amphibolite - lower; Component: mineralization zone
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Metallogenic signatures: | Fe | |||||||||
Mineralogy: | (mineralization): quartz (mineralization - massive / mineralization zone): magnetite, hematite | |||||||||
Deposit shape: | tabular; Component: mineralization zone
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Qualified comments: | (Applies to: location ) The location of the deposit was taken from AR 060744 Figure 11 (Geologic map of the vicinity of Borealis 1,2 and 3 iron formation occurrences). (Applies to: mineralization) (see Borealis-1 for general comments) The Northern Extension of Borealis 1 is continuous with the latter, but thins to an average width of 300 feet over its length of 2,750 feet. (Applies to: reserve/resource assays) The Borealis - 1 North Extension has estimated resources of 47 million long tons of ore reserves by surface planimetry (no drilling has been done). No samples taken, so grades are not known. | |||||||||
Links to other databases: | NUMIN; Key value: 047BSE0024 NMI; Key value: 47 B 02 Fe 1 | |||||||||
Geophysical-chemical signature: | Signature type: Airborne Magnetometer; Response type: negative (very strong) | |||||||||
References: |
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Resource data: |
Estimate date: 1977; Component: mineralization zone; 47 long ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: geological resource Reference: Scruggs, G. G., 1977: Geology and Research of all Borealis Claims, Melville Peninsula (080645); Mineral Assessment Report, Borealis Exploration Ltd, Indian and Northern Affairs Canada, Publication code 080645 Percent weights allocated to deposit: 100.0% | |||||||||
Associated group(s): | West Melville Iron Deposits (31) |