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TitleTargeted fieldwork in the Daly Bay Complex, Hudson Bay, Nunavut
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorHanmer, S; Williams, M L
SourceGeological Survey of Canada, Current Research (Online) no. 2001-C15, 2001, 24 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Mediapaper; on-line; digital; CD-ROM
RelatedThis publication is contained in Current Research 2001, winter release
File formatpdf
NTS56A/01; 56A/02; 56A/03; 56A/04; 56A/05; 56A/06; 56A/07; 56A/08
AreaHudson Bay; Rankin Inlet; Baker Lake
Lat/Long WENS-90.0000 -88.0000 64.5000 64.0000
Subjectsregional geology; structural geology; anorthosites; paragneisses; migmatites; granodiorites; tonalites; gabbros; metamorphism; granulite facies; shear zones; faults; folds; foliation; lineations; deformation; structural analysis; Archean; Daily Bay Complex; Proterozoic; Precambrian
Illustrationssketch maps; photographs; cross-sections
ProgramWestern Churchill NATMAP Project
Released2001 01 01
AbstractThe Daly Bay Complex is a large (2500 2 km in area), sheet-like body of mafic to anorthositic rocks, tonalite, and paragneiss of unknown age that was intruded into the lower crust, possibly during the Paleoproterozoic. Magmatic advection of heat led to granulite-facies metamorphism, localized within the magmatic body and large panels of aluminous country rock included within it. Initial high-temperature granulite-facies orthopyroxene and plagioclase metamorphic assemblages were replaced by garnet- and clinopyroxene-bearing assemblages as the complex cooled isobarically. It is improbable that the Daly Bay Complex was tectonically transported any significant dis- tance while granulite-facies conditions prevailed.

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