Has the formation of a slab window below the Antarctic Peninsula controlled its topographic evolution? ...
This thesis presents apatite (U-Th)/He and apatite fission-track thermochronology data to understand spatial and temporal changes in rock uplift and exhumation along and across the Antarctic Peninsula to determine how and when its high elevation developed. This is important to test tectonic models a...
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Birkbeck, University of London
2024
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Online Access: | https://dx.doi.org/10.18743/pub.00053226 https://eprints.bbk.ac.uk/id/eprint/53226 |
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ftdatacite:10.18743/pub.00053226 2024-04-28T07:53:58+00:00 Has the formation of a slab window below the Antarctic Peninsula controlled its topographic evolution? ... Twinn, Gary Peter 2024 https://dx.doi.org/10.18743/pub.00053226 https://eprints.bbk.ac.uk/id/eprint/53226 unknown Birkbeck, University of London thesis Thesis Dissertation 2024 ftdatacite https://doi.org/10.18743/pub.00053226 2024-04-02T10:54:23Z This thesis presents apatite (U-Th)/He and apatite fission-track thermochronology data to understand spatial and temporal changes in rock uplift and exhumation along and across the Antarctic Peninsula to determine how and when its high elevation developed. This is important to test tectonic models and to understand the elevation history as a precursor to ice nucleation and expansion in the Cenozoic. Easterly-directed subduction of the Phoenix Plate, including ridge-trench collisions, has been taking place along its western margin since the Late Cretaceous. Data from four east-west transects show how cooling rates varied with distance from the trench as well as with respect to the timing of the ridge-trench collisions on a south-north basis. Eastern Palmer Land preserves a record of uplift during the Late Cretaceous that coincides with changes in Phoenix Plate convergence rates and direction. In contrast, western Palmer Land and Alexander Island experienced a period of increased rates of cooling between c. 25 ... Doctoral or Postdoctoral Thesis Alexander Island Antarc* Antarctic Antarctic Peninsula Palmer Land DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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This thesis presents apatite (U-Th)/He and apatite fission-track thermochronology data to understand spatial and temporal changes in rock uplift and exhumation along and across the Antarctic Peninsula to determine how and when its high elevation developed. This is important to test tectonic models and to understand the elevation history as a precursor to ice nucleation and expansion in the Cenozoic. Easterly-directed subduction of the Phoenix Plate, including ridge-trench collisions, has been taking place along its western margin since the Late Cretaceous. Data from four east-west transects show how cooling rates varied with distance from the trench as well as with respect to the timing of the ridge-trench collisions on a south-north basis. Eastern Palmer Land preserves a record of uplift during the Late Cretaceous that coincides with changes in Phoenix Plate convergence rates and direction. In contrast, western Palmer Land and Alexander Island experienced a period of increased rates of cooling between c. 25 ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Twinn, Gary Peter |
spellingShingle |
Twinn, Gary Peter Has the formation of a slab window below the Antarctic Peninsula controlled its topographic evolution? ... |
author_facet |
Twinn, Gary Peter |
author_sort |
Twinn, Gary Peter |
title |
Has the formation of a slab window below the Antarctic Peninsula controlled its topographic evolution? ... |
title_short |
Has the formation of a slab window below the Antarctic Peninsula controlled its topographic evolution? ... |
title_full |
Has the formation of a slab window below the Antarctic Peninsula controlled its topographic evolution? ... |
title_fullStr |
Has the formation of a slab window below the Antarctic Peninsula controlled its topographic evolution? ... |
title_full_unstemmed |
Has the formation of a slab window below the Antarctic Peninsula controlled its topographic evolution? ... |
title_sort |
has the formation of a slab window below the antarctic peninsula controlled its topographic evolution? ... |
publisher |
Birkbeck, University of London |
publishDate |
2024 |
url |
https://dx.doi.org/10.18743/pub.00053226 https://eprints.bbk.ac.uk/id/eprint/53226 |
genre |
Alexander Island Antarc* Antarctic Antarctic Peninsula Palmer Land |
genre_facet |
Alexander Island Antarc* Antarctic Antarctic Peninsula Palmer Land |
op_doi |
https://doi.org/10.18743/pub.00053226 |
_version_ |
1797574200355979264 |