| Title | Proterozoic reworking in western Churchill Province, Gibson Lake-Cross Bay area, Northwest Territories (Kivalliq region, Nunavut). Part 1: general geology |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Hanmer, S; Tella, S; Sandeman, H A; Ryan, J J; Hadlari, T ; Mills, A |
| Source | Canadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1999-C, 1999 p. 55-64, https://doi.org/10.4095/210171  Open Access |
| Year | 1999 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is contained in Canadian Shield
|
| File format | pdf |
| Province | Nunavut |
| NTS | 55M/09; 55M/16; 55N/05NW; 55N/05NE; 55N/06NW; 55N/06NE; 55N/11; 55N/12; 55N/13; 55N/14 |
| Area | Gibson Lake; Cross Bay; Chesterfield Inlet; Broken Drum Lake |
| Lat/Long WENS | -94.5000 -93.0000 64.0000 63.4167 |
| Subjects | igneous 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 |
| Illustrations | sketch maps; photographs |
| Program | Western Churchill NATMAP Project |
| Released | 1999 02 01 |
| Abstract | The 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. |
| GEOSCAN ID | 210171 |
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