Investigating the Effect of Mantle Flow on Surface Deformation in Alaska, Northwestern Canada, and the Bering Sea Using 3-D Geodynamic Models ...
This research aims to examine the effect that mantle tractions have on surface deformation throughout the Pacific-North America plate boundary zone in Alaska, western Canada, and the Bering Sea region. We use 3-D geodynamic models to simulate the crust and upper mantle in order to investigate the te...
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Purdue University Graduate School
2023
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ftdatacite:10.25394/pgs.24302335.v1 2023-12-03T10:20:18+01:00 Investigating the Effect of Mantle Flow on Surface Deformation in Alaska, Northwestern Canada, and the Bering Sea Using 3-D Geodynamic Models ... Mcconeghy, Joseph D 2023 https://dx.doi.org/10.25394/pgs.24302335.v1 https://hammer.purdue.edu/articles/thesis/Investigating_the_Effect_of_Mantle_Flow_on_Surface_Deformation_in_Alaska_Northwestern_Canada_and_the_Bering_Sea_Using_3-D_Geodynamic_Models/24302335/1 unknown Purdue University Graduate School https://dx.doi.org/10.25394/pgs.24302335 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Geodesy Geophysics not elsewhere classified ScholarlyArticle Text article-journal Thesis 2023 ftdatacite https://doi.org/10.25394/pgs.24302335.v110.25394/pgs.24302335 2023-11-03T10:45:07Z This research aims to examine the effect that mantle tractions have on surface deformation throughout the Pacific-North America plate boundary zone in Alaska, western Canada, and the Bering Sea region. We use 3-D geodynamic models to simulate the crust and upper mantle in order to investigate the tectonic force balance between plate boundary interactions, gravitational collapse, and basal tractions. We determine that mantle tractions with a magnitude of ~2.5-3.8 MPa, directed to the southeast, in conjunction with forces from the Yakutat flat slab, best fit the steady-state plate motion estimates in Alaska. We also show how these mantle tractions have likely aided in concentrating deformation to the northwest of incoming Yakutat oceanic plateau throughout the ~50 Ma evolution of flat slab subduction in this region. Finally, we conclude that mantle tractions also impact the broad zone of distributed deformation surrounding the Bering Sea. The confluence of basal forces and tectonic extrusion, due to the ... Thesis Bering Sea Yakutat Alaska DataCite Metadata Store (German National Library of Science and Technology) Bering Sea Canada Pacific |
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DataCite Metadata Store (German National Library of Science and Technology) |
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Geodesy Geophysics not elsewhere classified |
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Geodesy Geophysics not elsewhere classified Mcconeghy, Joseph D Investigating the Effect of Mantle Flow on Surface Deformation in Alaska, Northwestern Canada, and the Bering Sea Using 3-D Geodynamic Models ... |
topic_facet |
Geodesy Geophysics not elsewhere classified |
description |
This research aims to examine the effect that mantle tractions have on surface deformation throughout the Pacific-North America plate boundary zone in Alaska, western Canada, and the Bering Sea region. We use 3-D geodynamic models to simulate the crust and upper mantle in order to investigate the tectonic force balance between plate boundary interactions, gravitational collapse, and basal tractions. We determine that mantle tractions with a magnitude of ~2.5-3.8 MPa, directed to the southeast, in conjunction with forces from the Yakutat flat slab, best fit the steady-state plate motion estimates in Alaska. We also show how these mantle tractions have likely aided in concentrating deformation to the northwest of incoming Yakutat oceanic plateau throughout the ~50 Ma evolution of flat slab subduction in this region. Finally, we conclude that mantle tractions also impact the broad zone of distributed deformation surrounding the Bering Sea. The confluence of basal forces and tectonic extrusion, due to the ... |
format |
Thesis |
author |
Mcconeghy, Joseph D |
author_facet |
Mcconeghy, Joseph D |
author_sort |
Mcconeghy, Joseph D |
title |
Investigating the Effect of Mantle Flow on Surface Deformation in Alaska, Northwestern Canada, and the Bering Sea Using 3-D Geodynamic Models ... |
title_short |
Investigating the Effect of Mantle Flow on Surface Deformation in Alaska, Northwestern Canada, and the Bering Sea Using 3-D Geodynamic Models ... |
title_full |
Investigating the Effect of Mantle Flow on Surface Deformation in Alaska, Northwestern Canada, and the Bering Sea Using 3-D Geodynamic Models ... |
title_fullStr |
Investigating the Effect of Mantle Flow on Surface Deformation in Alaska, Northwestern Canada, and the Bering Sea Using 3-D Geodynamic Models ... |
title_full_unstemmed |
Investigating the Effect of Mantle Flow on Surface Deformation in Alaska, Northwestern Canada, and the Bering Sea Using 3-D Geodynamic Models ... |
title_sort |
investigating the effect of mantle flow on surface deformation in alaska, northwestern canada, and the bering sea using 3-d geodynamic models ... |
publisher |
Purdue University Graduate School |
publishDate |
2023 |
url |
https://dx.doi.org/10.25394/pgs.24302335.v1 https://hammer.purdue.edu/articles/thesis/Investigating_the_Effect_of_Mantle_Flow_on_Surface_Deformation_in_Alaska_Northwestern_Canada_and_the_Bering_Sea_Using_3-D_Geodynamic_Models/24302335/1 |
geographic |
Bering Sea Canada Pacific |
geographic_facet |
Bering Sea Canada Pacific |
genre |
Bering Sea Yakutat Alaska |
genre_facet |
Bering Sea Yakutat Alaska |
op_relation |
https://dx.doi.org/10.25394/pgs.24302335 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.25394/pgs.24302335.v110.25394/pgs.24302335 |
_version_ |
1784267733717745664 |