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TitleAuriferous iron-formation in the upper Hayes River area, central mainland Nunavut
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorHyde, D J; Jenner, G A; Sherlock, R L
SourceGeological Survey of Canada, Current Research (Online) no. 2002-E7, 2002, 9 pages, (Open Access)
PublisherNatural Resources Canada
Mediapaper; on-line; digital; CD-ROM
RelatedThis publication is contained in Geological Survey of Canada; (2002). Current Research 2002, summer release, Geological Survey of Canada, Current Research no. 2002
File formatpdf
AreaHayes River
Lat/Long WENS-91.4667 -91.4000 66.6500 66.6333
Subjectseconomic geology; structural geology; gold; mineralization; iron formations; greenstone belts; Archean; deformation; metamorphism; metasedimentary rocks; volcanic rocks; igneous rocks; plutonic rocks; intrusive rocks; volcaniclastics; Prince Albert Group; Precambrian
Illustrationssketch maps; photographs
Released2002 09 16
AbstractThe Committee Bay greenstone belt, underlain by the largely underexplored Archean Prince Albert group, is prospective for many different styles of mineralization. This report focuses on iron-formation-hosted gold occurrences in the upper Hayes River area, southwestern portion of NTS 56-O near Walker Lake. In this area, gold is associated with sulphidized magnetite-silicate iron-formation and deformed sulphidic quartz veins, localized within a corridor of highly strained rocks. On the basis of deformation fabrics, sulphidation reactions and associated gold mineralization predate or are early within the development of the main composite transposition fabric (S21S1). The deformation event associated with the deposit is interpreted to have resulted from strain partitioning into the supracrustal sequence, possibly during development of the Walker Lake shear zone.