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TitleNew geological insights into the Carmacks copper deposit
 
AuthorKovaks, N
SourceYukon Geoscience Forum 2016; 2016 p. 1
Year2016
Alt SeriesNatural Resources Canada, Contribution Series 20190504
PublisherYukon Geological Survey
MeetingYukon Geoscience Forum & Trade Show; Whitehorse, YT; CA; November 19-22, 2016
Documentbook
Lang.English
Mediadigital
ProvinceYukon
NTS115I/01; 115I/02; 115I/07; 115I/08; 115I/09; 115I/10
AreaCarmacks
Lat/Long WENS-137.0000 -136.0000 62.7333 62.0000
Subjectseconomic geology; igneous and metamorphic petrology; Science and Technology; Nature and Environment; mineral deposits; copper; mineralization; metamorphic environment; metamorphic rocks; sulphides; partial melting; bornite; chalcopyrite; Carmacks Copper deposit; Granite Mountain Batholith; Phanerozoic; Mesozoic; Jurassic
ProgramGEM2: Geo-mapping for Energy and Minerals Western Cordillera, Regional porphyry transitions
Abstract(unpublished)
The Carmacks Copper Cu-Au-Ag deposit is hosted in compositionally heterogeneous, foliated and folded, and variably migmatitic metamorphic rocks, which occur as elongate, NNW-trending inliers in Early Jurassic granitoid rocks of the Granite Mountain batholith. Hypogene copper mineralization is restricted to metamorphic host rocks, and occurs both as foliation-parallel chalcopyrite-dominant stringers in schistose rocks, and as net-textured bornite-chalcopyrite-dominant sulphides in the migmatitic rocks prevalent along the eastern margin of the largest metamorphic inlier. The latter style of mineralization is interpreted to originate from a sulphide melt phase generated during partial melting of a previously mineralized protolith, during emplacement of the Granite Mountain batholith.
GEOSCAN ID321764

 
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