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...

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Published in:Canadian Journal of Earth Sciences
Main Authors: Therriault, Isabelle, Larson, Kyle, Steenkamp, Holly, Apen, Francisco, Graziani, Riccardo, Soret, Mathieu, Guilmette, Carl, Cottle, John
Other Authors: 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
Language:English
Published: HAL CCSD 2023
Subjects:
Rae
Online Access:https://insu.hal.science/insu-04240554
https://doi.org/10.1139/cjes-2022-0031
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spelling 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
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