Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera
The Laberge Group consists of synorogenic, marginal-marine to deep-marine strata that were deposited in the Whitehorse trough of central Yukon during the collision of the northern Intermontane terranes along the western Laurentian margin. New detrital zircon U-Pb-Hf data from Laberge Group rock unit...
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Memorial University of Newfoundland
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ftmemorialuniv:oai:research.library.mun.ca:13936 2023-10-01T04:00:03+02:00 Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera Van Drecht, Leigh 2019-06 application/pdf https://research.library.mun.ca/13936/ https://research.library.mun.ca/13936/1/thesis.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/13936/1/thesis.pdf Van Drecht, Leigh <https://research.library.mun.ca/view/creator_az/Van_Drecht=3ALeigh=3A=3A.html> (2019) Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 2019 ftmemorialuniv 2023-09-03T06:49:29Z The Laberge Group consists of synorogenic, marginal-marine to deep-marine strata that were deposited in the Whitehorse trough of central Yukon during the collision of the northern Intermontane terranes along the western Laurentian margin. New detrital zircon U-Pb-Hf data from Laberge Group rock units constrain the Early to Middle Jurassic depositional ages and provenance of Whitehorse trough strata and determine their relationship to the unroofing history of adjacent basement successions. The Whitehorse trough initiated in the Sinemurian as a long, narrow basin that subsequently grew to the west, east, and south by Aalenian time and was sourced by Paleozoic Yukon- Tanana and Stikinia basement rocks and their synorogenic Late Triassic-Early Jurassic plutonic suites. Late Triassic-Middle Jurassic detrital zircon grains from the northern apex of the Whitehorse trough record an excursion to subchondritic Hf(t) values that coincides with the burial of Intermontane terranes and may record crustal thickening proximal to northern regions of the basin. Thesis Whitehorse Yukon Memorial University of Newfoundland: Research Repository Yukon |
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Open Polar |
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Memorial University of Newfoundland: Research Repository |
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ftmemorialuniv |
language |
English |
description |
The Laberge Group consists of synorogenic, marginal-marine to deep-marine strata that were deposited in the Whitehorse trough of central Yukon during the collision of the northern Intermontane terranes along the western Laurentian margin. New detrital zircon U-Pb-Hf data from Laberge Group rock units constrain the Early to Middle Jurassic depositional ages and provenance of Whitehorse trough strata and determine their relationship to the unroofing history of adjacent basement successions. The Whitehorse trough initiated in the Sinemurian as a long, narrow basin that subsequently grew to the west, east, and south by Aalenian time and was sourced by Paleozoic Yukon- Tanana and Stikinia basement rocks and their synorogenic Late Triassic-Early Jurassic plutonic suites. Late Triassic-Middle Jurassic detrital zircon grains from the northern apex of the Whitehorse trough record an excursion to subchondritic Hf(t) values that coincides with the burial of Intermontane terranes and may record crustal thickening proximal to northern regions of the basin. |
format |
Thesis |
author |
Van Drecht, Leigh |
spellingShingle |
Van Drecht, Leigh Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera |
author_facet |
Van Drecht, Leigh |
author_sort |
Van Drecht, Leigh |
title |
Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera |
title_short |
Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera |
title_full |
Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera |
title_fullStr |
Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera |
title_full_unstemmed |
Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera |
title_sort |
detrital zircon u-pb geochronology and hf isotope geochemistry of the laberge group: synorogenic siliciclastic record of early mesozoic crustal thickening and tectonic evolution of the whitehorse trough in the northern canadian cordillera |
publisher |
Memorial University of Newfoundland |
publishDate |
2019 |
url |
https://research.library.mun.ca/13936/ https://research.library.mun.ca/13936/1/thesis.pdf |
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Yukon |
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Yukon |
genre |
Whitehorse Yukon |
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Whitehorse Yukon |
op_relation |
https://research.library.mun.ca/13936/1/thesis.pdf Van Drecht, Leigh <https://research.library.mun.ca/view/creator_az/Van_Drecht=3ALeigh=3A=3A.html> (2019) Detrital zircon U-Pb geochronology and Hf isotope geochemistry of the Laberge Group: synorogenic siliciclastic record of early Mesozoic crustal thickening and tectonic evolution of the Whitehorse trough in the northern Canadian Cordillera. Masters thesis, Memorial University of Newfoundland. |
op_rights |
thesis_license |
_version_ |
1778534706936020992 |