| Title | Geology of the Uvauk complex, Northwest Territories (Kivalliq region, Nunavut) |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Mills, A; Berman, R ; Hanmer, S |
| Source | Canadian Shield/Bouclier canadien; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1999-C, 1999 p. 97-106, https://doi.org/10.4095/210175  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 | 55N/15NE; 55N/15SE |
| Area | Uvauk Inlet; Chesterfield Inlet |
| Lat/Long WENS | -92.7500 -92.5833 64.0000 63.7500 |
| Subjects | structural geology; igneous and metamorphic petrology; lithology; plutonic rocks; anorthosites; tonalites; volcanic rocks; plutonic rocks; diorites; igneous rocks; gneisses; metamorphic rocks; dykes;
mafic volcanic rocks; orthogneisses; field relations; textural analyses; metamorphic facies; amphibolite facies; granulite facies; metamorphism; lineations; structural interpretations; structural features; Churchill Province; Uvauk complex;
Precambrian |
| Illustrations | sketch maps; photographs |
| Program | Western Churchill NATMAP Project |
| Released | 1999 02 01 |
| Abstract | The Uvauk complex comprises anorthosite, gabbroic anorthosite, diorite, gabbro, and quartzofeldspathic gneiss that have been strongly deformed and metamorphosed at granulite grade, with a subsequent,
pervasive, amphibolite-grade overprint. Detailed mapping of the western portion of the complex suggests that the anorthosite represents a synkinematic intrusion into diorite and quartzofeldspathic gneiss wall rocks. Field relations do not
unequivocally indicate whether wall rocks had undergone an earlier, Archean, granulite- facies, mylonitization event, or whether all deformation and metamorphism is related to one progressive event.
Sinistral shear-sense indicators to the north
and dextral shear-sense indicators to the south of the anorthosite indicate eastward transport of the anorthosite body with respect to its wall rocks. The shallow, east-plunging lineation and limited metamorphic contrast across the wall rocks suggest
minimal vertical displacement. |
| GEOSCAN ID | 210175 |
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