Postglacial slip distribution along the Teton normal fault (Wyoming, USA), derived from tectonically offset geomorphological features
Along the eastern front of the Teton Range, northeastern Basin and Range province (Wyoming, USA), well-preserved fault scarps that formed across moraines, river terraces, and other geomorphological features indicate that multiple earthquakes ruptured the range-bounding Teton normal fault after the L...
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2021
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ftunivhannover:oai:www.repo.uni-hannover.de:123456789/11277 2023-07-16T03:58:59+02:00 Postglacial slip distribution along the Teton normal fault (Wyoming, USA), derived from tectonically offset geomorphological features Hampel, Andrea Hetzel, Ralf Erdmann, Maria-Sophie 2021 https://www.repo.uni-hannover.de/handle/123456789/11277 https://doi.org/10.15488/11191 eng eng Alexandria, Va. : GeoScienceWorld DOI:https://doi.org/10.1130/GES02370.1 ESSN:1553-040X http://dx.doi.org/10.15488/11191 https://www.repo.uni-hannover.de/handle/123456789/11277 CC BY-NC 4.0 Unported https://creativecommons.org/licenses/by-nc/4.0/ frei zugänglich Geosphere 17 (2021) Postglacial slip distribution Teton normal fault Wyoming USA tectonically offset geomorphological features ddc:550 status-type:publishedVersion doc-type:Article doc-type:Text 2021 ftunivhannover https://doi.org/10.15488/1119110.1130/GES02370.1 2023-06-28T10:38:53Z Along the eastern front of the Teton Range, northeastern Basin and Range province (Wyoming, USA), well-preserved fault scarps that formed across moraines, river terraces, and other geomorphological features indicate that multiple earthquakes ruptured the range-bounding Teton normal fault after the Last Glacial Maximum (LGM). Here we use high-resolution digital elevation models derived from lidar data to determine the vertical slip distribution along strike of the Teton fault from 54 topographic profiles across tectonically offset geomorphological features along the entire Teton Range front. We find that offset LGM moraines and glacially striated surfaces show higher vertical displacements than younger fluvial terraces, which formed at valley exits upstream of LGM terminal moraines. Our results reveal that the tectonic offsets preserved in the fault scarps are post-LGM in age and that the postglacial slip distribution along strike of the Teton fault is asymmetric with respect to the Teton Range center, with the maximum vertical displacements (27–23 m) being located north of Jenny Lake and along the southwestern shore of Jackson Lake. As indicated by earlier three-dimensional numerical models, this asymmetric slip distribution results from postglacial unloading of the Teton fault, which experienced loading by the Yellowstone ice cap and valley glaciers in the Teton Range during the last glaciation. Article in Journal/Newspaper Ice cap Institutional Repository of Leibniz Universität Hannover Jenny ENVELOPE(-68.417,-68.417,-67.733,-67.733) Jenny Lake ENVELOPE(-138.366,-138.366,61.044,61.044) |
institution |
Open Polar |
collection |
Institutional Repository of Leibniz Universität Hannover |
op_collection_id |
ftunivhannover |
language |
English |
topic |
Postglacial slip distribution Teton normal fault Wyoming USA tectonically offset geomorphological features ddc:550 |
spellingShingle |
Postglacial slip distribution Teton normal fault Wyoming USA tectonically offset geomorphological features ddc:550 Hampel, Andrea Hetzel, Ralf Erdmann, Maria-Sophie Postglacial slip distribution along the Teton normal fault (Wyoming, USA), derived from tectonically offset geomorphological features |
topic_facet |
Postglacial slip distribution Teton normal fault Wyoming USA tectonically offset geomorphological features ddc:550 |
description |
Along the eastern front of the Teton Range, northeastern Basin and Range province (Wyoming, USA), well-preserved fault scarps that formed across moraines, river terraces, and other geomorphological features indicate that multiple earthquakes ruptured the range-bounding Teton normal fault after the Last Glacial Maximum (LGM). Here we use high-resolution digital elevation models derived from lidar data to determine the vertical slip distribution along strike of the Teton fault from 54 topographic profiles across tectonically offset geomorphological features along the entire Teton Range front. We find that offset LGM moraines and glacially striated surfaces show higher vertical displacements than younger fluvial terraces, which formed at valley exits upstream of LGM terminal moraines. Our results reveal that the tectonic offsets preserved in the fault scarps are post-LGM in age and that the postglacial slip distribution along strike of the Teton fault is asymmetric with respect to the Teton Range center, with the maximum vertical displacements (27–23 m) being located north of Jenny Lake and along the southwestern shore of Jackson Lake. As indicated by earlier three-dimensional numerical models, this asymmetric slip distribution results from postglacial unloading of the Teton fault, which experienced loading by the Yellowstone ice cap and valley glaciers in the Teton Range during the last glaciation. |
format |
Article in Journal/Newspaper |
author |
Hampel, Andrea Hetzel, Ralf Erdmann, Maria-Sophie |
author_facet |
Hampel, Andrea Hetzel, Ralf Erdmann, Maria-Sophie |
author_sort |
Hampel, Andrea |
title |
Postglacial slip distribution along the Teton normal fault (Wyoming, USA), derived from tectonically offset geomorphological features |
title_short |
Postglacial slip distribution along the Teton normal fault (Wyoming, USA), derived from tectonically offset geomorphological features |
title_full |
Postglacial slip distribution along the Teton normal fault (Wyoming, USA), derived from tectonically offset geomorphological features |
title_fullStr |
Postglacial slip distribution along the Teton normal fault (Wyoming, USA), derived from tectonically offset geomorphological features |
title_full_unstemmed |
Postglacial slip distribution along the Teton normal fault (Wyoming, USA), derived from tectonically offset geomorphological features |
title_sort |
postglacial slip distribution along the teton normal fault (wyoming, usa), derived from tectonically offset geomorphological features |
publisher |
Alexandria, Va. : GeoScienceWorld |
publishDate |
2021 |
url |
https://www.repo.uni-hannover.de/handle/123456789/11277 https://doi.org/10.15488/11191 |
long_lat |
ENVELOPE(-68.417,-68.417,-67.733,-67.733) ENVELOPE(-138.366,-138.366,61.044,61.044) |
geographic |
Jenny Jenny Lake |
geographic_facet |
Jenny Jenny Lake |
genre |
Ice cap |
genre_facet |
Ice cap |
op_source |
Geosphere 17 (2021) |
op_relation |
DOI:https://doi.org/10.1130/GES02370.1 ESSN:1553-040X http://dx.doi.org/10.15488/11191 https://www.repo.uni-hannover.de/handle/123456789/11277 |
op_rights |
CC BY-NC 4.0 Unported https://creativecommons.org/licenses/by-nc/4.0/ frei zugänglich |
op_doi |
https://doi.org/10.15488/1119110.1130/GES02370.1 |
_version_ |
1771546392523702272 |