Title | Targeted fieldwork in the Daly Bay Complex, Hudson Bay, Nunavut |
Download | Downloads |
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Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
Author | Hanmer, S; Williams, M L |
Source | Geological Survey of Canada, Current Research (Online) no. 2001-C15, 2001, 24 pages, https://doi.org/10.4095/212095 Open Access |
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Year | 2001 |
Publisher | Natural Resources Canada |
Document | serial |
Lang. | English |
Media | paper; on-line; digital; CD-ROM |
Related | This publication is contained in Current Research 2001,
winter release |
File format | pdf |
Province | Nunavut |
NTS | 56A/01; 56A/02; 56A/03; 56A/04; 56A/05; 56A/06; 56A/07; 56A/08 |
Area | Hudson Bay; Rankin Inlet; Baker Lake |
Lat/Long WENS | -90.0000 -88.0000 64.5000 64.0000 |
Subjects | regional 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 |
Illustrations | sketch maps; photographs; cross-sections |
Program | Western Churchill NATMAP Project |
Released | 2001 01 01 |
Abstract | The 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. |
GEOSCAN ID | 212095 |
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