Characterization of the Wager shear zone, Nunavut, Canada: Insights from microstructures and geochronology
International audience 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, ki...
Published in: | Canadian Journal of Earth Sciences |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
CCSD
2023
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Subjects: | |
Online Access: | https://insu.hal.science/insu-04240554 https://doi.org/10.1139/cjes-2022-0031 |
_version_ | 1824863217670684672 |
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author | Therriault, Isabelle Larson, Kyle Steenkamp, Holly Apen, Francisco Graziani, Riccardo Soret, Mathieu Guilmette, Carl Cottle, John |
author2 | Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO) Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-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 Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-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 Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-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)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-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) |
author_facet | Therriault, Isabelle Larson, Kyle Steenkamp, Holly Apen, Francisco Graziani, Riccardo Soret, Mathieu Guilmette, Carl Cottle, John |
author_sort | Therriault, Isabelle |
collection | Institut national des sciences de l'Univers: HAL-INSU |
container_issue | 1 |
container_start_page | 78 |
container_title | Canadian Journal of Earth Sciences |
container_volume | 60 |
description | International audience 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. |
format | Article in Journal/Newspaper |
genre | Hudson Bay Nunavut |
genre_facet | Hudson Bay Nunavut |
geographic | Canada Hudson Hudson Bay Nunavut Rae |
geographic_facet | Canada Hudson Hudson Bay Nunavut Rae |
id | ftinsu:oai:HAL:insu-04240554v1 |
institution | Open Polar |
language | English |
long_lat | ENVELOPE(-116.053,-116.053,62.834,62.834) |
op_collection_id | ftinsu |
op_container_end_page | 96 |
op_doi | https://doi.org/10.1139/cjes-2022-0031 |
op_relation | info:eu-repo/semantics/altIdentifier/doi/10.1139/cjes-2022-0031 |
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⟩ |
publishDate | 2023 |
publisher | CCSD |
record_format | openpolar |
spelling | ftinsu:oai:HAL:insu-04240554v1 2025-02-23T14:48:27+00:00 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)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-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 Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-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 Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-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)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-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 CCSD National Research Council Canada info:eu-repo/semantics/altIdentifier/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 2025-01-30T17:09:00Z International audience 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 |
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 |
title | 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_short | 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 |
topic | [SDU]Sciences of the Universe [physics] |
topic_facet | [SDU]Sciences of the Universe [physics] |
url | https://insu.hal.science/insu-04240554 https://doi.org/10.1139/cjes-2022-0031 |