Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska
Abstract: While variations in crustal structure beneath the Denali fault in Alaska are well‐documented, the existence of fault‐correlated structures throughout the entire thickness of the continental lithosphere is not. A new model of shear‐wave velocity structure obtained through joint inversion of...
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2022
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ftcdlib:oai:escholarship.org:ark:/13030/qt0dd208z6 2023-11-12T04:12:47+01:00 Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska Gama, Isabella Fischer, Karen M Dalton, Colleen A Eilon, Zachary 2022-12-28 application/pdf https://escholarship.org/uc/item/0dd208z6 unknown eScholarship, University of California qt0dd208z6 https://escholarship.org/uc/item/0dd208z6 CC-BY-ND Geophysical Research Letters, vol 49, iss 24 Earth Sciences Geology Geophysics Meteorology & Atmospheric Sciences article 2022 ftcdlib 2023-10-30T19:04:45Z Abstract: While variations in crustal structure beneath the Denali fault in Alaska are well‐documented, the existence of fault‐correlated structures throughout the entire thickness of the continental lithosphere is not. A new model of shear‐wave velocity structure obtained through joint inversion of surface wave and converted body wave data shows a northward increase in lithospheric thickness and velocity occurring across the Denali fault system. In northern Alaska, a dramatic increase in lithospheric thickness at the southern margin of the Arctic‐Alaska terrane lies in the vicinity of the Kobuk fault system. These correlations support the view that transpressive deformation tends to localize at the margins of thicker, higher‐strength lithosphere. Article in Journal/Newspaper Arctic Alaska University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Earth Sciences Geology Geophysics Meteorology & Atmospheric Sciences |
spellingShingle |
Earth Sciences Geology Geophysics Meteorology & Atmospheric Sciences Gama, Isabella Fischer, Karen M Dalton, Colleen A Eilon, Zachary Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska |
topic_facet |
Earth Sciences Geology Geophysics Meteorology & Atmospheric Sciences |
description |
Abstract: While variations in crustal structure beneath the Denali fault in Alaska are well‐documented, the existence of fault‐correlated structures throughout the entire thickness of the continental lithosphere is not. A new model of shear‐wave velocity structure obtained through joint inversion of surface wave and converted body wave data shows a northward increase in lithospheric thickness and velocity occurring across the Denali fault system. In northern Alaska, a dramatic increase in lithospheric thickness at the southern margin of the Arctic‐Alaska terrane lies in the vicinity of the Kobuk fault system. These correlations support the view that transpressive deformation tends to localize at the margins of thicker, higher‐strength lithosphere. |
format |
Article in Journal/Newspaper |
author |
Gama, Isabella Fischer, Karen M Dalton, Colleen A Eilon, Zachary |
author_facet |
Gama, Isabella Fischer, Karen M Dalton, Colleen A Eilon, Zachary |
author_sort |
Gama, Isabella |
title |
Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska |
title_short |
Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska |
title_full |
Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska |
title_fullStr |
Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska |
title_full_unstemmed |
Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska |
title_sort |
variations in lithospheric thickness across the denali fault and in northern alaska |
publisher |
eScholarship, University of California |
publishDate |
2022 |
url |
https://escholarship.org/uc/item/0dd208z6 |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_source |
Geophysical Research Letters, vol 49, iss 24 |
op_relation |
qt0dd208z6 https://escholarship.org/uc/item/0dd208z6 |
op_rights |
CC-BY-ND |
_version_ |
1782331123219562496 |