CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


 
Database name: Canadian Iron Formation
Custodial agency: Geological Survey of Canada
Compilers: G. A. Gross and E. M. Hillary
Release date: 2014-08-21
   
Deposit name(s): Borealis - 1 North Extension (occurrence); West Melville Iron Deposits (occurrence)
Longitude / Latitude: -85.48791 / 68.22723
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
External host rock forms:tabular sedimentary body
Internal host rock structures:massive
Individual lithologies:iron formation - oxide
Host rock stratigraphy:Prince Albert group
Metallogenic signatures: Fe
Mineralogy: (mineralization): quartz
(mineralization - massive / mineralization zone): magnetite, hematite
Deposit shape: tabular; Component: mineralization zone
Deposit dimensions:length: 840 metres
width: 91 metres
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:
Anonymous, 1982
Preliminary Feasibility Study, Borealis Roche Bay Magnetite Project (062133)
Mineral Assessment Report, Borealis Exploration Ltd; Scott-Ortech Mining Ltd (operator), Indian and Northern Affairs Canada, Publication code 062133

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

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

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: 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%

Generated 2014-09-03 13:02:26 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
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