Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology
The Wager shear zone is an ∼450-km long zone of high strain hosted within Proterozoic and Archean rocks of the Rae domain in northwestern Hudson Bay, Nunavut. New field mapping and microstructural analyzes, combined with titanite and apatite geochronology, define the style, kinematics, and timing of...
Published in: | Canadian Journal of Earth Sciences |
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Online Access: | https://insu.hal.science/insu-04240554 https://doi.org/10.1139/cjes-2022-0031 |
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ftinsu:oai:HAL:insu-04240554v1 2024-01-14T10:07:31+01:00 Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology Therriault, Isabelle Larson, Kyle Steenkamp, Holly Apen, Francisco Graziani, Riccardo Soret, Mathieu Guilmette, Carl Cottle, John Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO) Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) Géodynamique - UMR7327 Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS) 2023-01-01 https://insu.hal.science/insu-04240554 https://doi.org/10.1139/cjes-2022-0031 en eng HAL CCSD National Research Council Canada info:eu-repo/semantics/altIdentifier/doi/10.1139/cjes-2022-0031 insu-04240554 https://insu.hal.science/insu-04240554 doi:10.1139/cjes-2022-0031 ISSN: 0008-4077 EISSN: 1480-3313 Canadian journal of earth sciences https://insu.hal.science/insu-04240554 Canadian journal of earth sciences, 2023, 60 (1), pp.78-96. ⟨10.1139/cjes-2022-0031⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2023 ftinsu https://doi.org/10.1139/cjes-2022-0031 2023-12-20T17:23:20Z The Wager shear zone is an ∼450-km long zone of high strain hosted within Proterozoic and Archean rocks of the Rae domain in northwestern Hudson Bay, Nunavut. New field mapping and microstructural analyzes, combined with titanite and apatite geochronology, define the style, kinematics, and timing of Proterozoic ductile deformation. The results indicate that the Wager shear zone accommodated high-temperature deformation between ca. 1.75 and 1.74 Ga with post-kinematic cooling through apatite U–Pb closure (425–530 °C) at ca. 1705 Ma. These new data show that the Wager shear zone was last active later than inferred in previous work, at a time when the western Churchill Province was undergoing lithospheric delamination and exhumation following the terminal collisional events in the western portion of the Trans-Hudson Orogen. Article in Journal/Newspaper Hudson Bay Nunavut Institut national des sciences de l'Univers: HAL-INSU Canada Hudson Hudson Bay Nunavut Rae ENVELOPE(-116.053,-116.053,62.834,62.834) Canadian Journal of Earth Sciences 60 1 78 96 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Therriault, Isabelle Larson, Kyle Steenkamp, Holly Apen, Francisco Graziani, Riccardo Soret, Mathieu Guilmette, Carl Cottle, John Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
The Wager shear zone is an ∼450-km long zone of high strain hosted within Proterozoic and Archean rocks of the Rae domain in northwestern Hudson Bay, Nunavut. New field mapping and microstructural analyzes, combined with titanite and apatite geochronology, define the style, kinematics, and timing of Proterozoic ductile deformation. The results indicate that the Wager shear zone accommodated high-temperature deformation between ca. 1.75 and 1.74 Ga with post-kinematic cooling through apatite U–Pb closure (425–530 °C) at ca. 1705 Ma. These new data show that the Wager shear zone was last active later than inferred in previous work, at a time when the western Churchill Province was undergoing lithospheric delamination and exhumation following the terminal collisional events in the western portion of the Trans-Hudson Orogen. |
author2 |
Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO) Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) Géodynamique - UMR7327 Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS) |
format |
Article in Journal/Newspaper |
author |
Therriault, Isabelle Larson, Kyle Steenkamp, Holly Apen, Francisco Graziani, Riccardo Soret, Mathieu Guilmette, Carl Cottle, John |
author_facet |
Therriault, Isabelle Larson, Kyle Steenkamp, Holly Apen, Francisco Graziani, Riccardo Soret, Mathieu Guilmette, Carl Cottle, John |
author_sort |
Therriault, Isabelle |
title |
Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology |
title_short |
Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology |
title_full |
Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology |
title_fullStr |
Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology |
title_full_unstemmed |
Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology |
title_sort |
characterization of the wager shear zone, nunavut, canada: insights from microstructures and geochronology |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://insu.hal.science/insu-04240554 https://doi.org/10.1139/cjes-2022-0031 |
long_lat |
ENVELOPE(-116.053,-116.053,62.834,62.834) |
geographic |
Canada Hudson Hudson Bay Nunavut Rae |
geographic_facet |
Canada Hudson Hudson Bay Nunavut Rae |
genre |
Hudson Bay Nunavut |
genre_facet |
Hudson Bay Nunavut |
op_source |
ISSN: 0008-4077 EISSN: 1480-3313 Canadian journal of earth sciences https://insu.hal.science/insu-04240554 Canadian journal of earth sciences, 2023, 60 (1), pp.78-96. ⟨10.1139/cjes-2022-0031⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1139/cjes-2022-0031 insu-04240554 https://insu.hal.science/insu-04240554 doi:10.1139/cjes-2022-0031 |
op_doi |
https://doi.org/10.1139/cjes-2022-0031 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
60 |
container_issue |
1 |
container_start_page |
78 |
op_container_end_page |
96 |
_version_ |
1788061910505095168 |