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TitleProterozoic reworking in western Churchill Province, Gibson Lake-Cross Bay area, Northwest Territories (Kivalliq region, Nunavut). Part 1: general geology
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorHanmer, S; Tella, S; Sandeman, H A; Ryan, J J; Hadlari, TORCID logo; Mills, A
SourceCanadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1999-C, 1999 p. 55-64, Open Access logo Open Access
PublisherNatural Resources Canada
Mediapaper; on-line; digital
RelatedThis publication is contained in Canadian Shield
File formatpdf
NTS55M/09; 55M/16; 55N/05NW; 55N/05NE; 55N/06NW; 55N/06NE; 55N/11; 55N/12; 55N/13; 55N/14
AreaGibson Lake; Cross Bay; Chesterfield Inlet; Broken Drum Lake
Lat/Long WENS-94.5000 -93.0000 64.0000 63.4167
Subjectsigneous and metamorphic petrology; structural geology; Archean; metasedimentary rocks; orthogneisses; metamorphic rocks; plutonic rocks; field relations; lithology; metamorphism; deformation; dykes; structural features; shear zones; igneous rocks; granodiorites; volcaniclastics; tonalites; volcanic rocks; textural analyses; foliation; faults; gabbros; carving stone, commodity; Churchill Province; MacQuoid Belt; Gibson-MacQuoid Homocline; Cross Bay Plutonic Complex; Big Lake shear zone; Precambrian; Proterozoic
Illustrationssketch maps; photographs
ProgramWestern Churchill NATMAP Project
Released1999 02 01
AbstractThe northeastern part of the Neoarchean MacQuoid supracrustal belt comprises the Gibson- MacQuoid homoclinal belt of homogeneous metasedimentary rocks, tonalitic orthogneiss units and plutons, structurally overlain to the north by a belt of mafic to intermediate volcanic flows and volcaniclastic rocks, intruded by tonalitic to granodiorite plutons. The Cross Bay plutonic complex is separated from the supracrustal belt by the Big lake shear zone. Metamorphosed, ca. 2.19 Ga, mafic dykes are involved in Paleoproterozoic regional deformation in both the plutonic complex and the shear zone.

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