Tectonic and climatic signals from apatite detrital fission track analysis of the Cape Roberts Project core records, South Victoria Land, Antarctica
The Cenozoic tectonic reorganization of the West Antarctic Rift System in the Ross Sea region occurred concurrently with a major change in the global climate system and a global reorganization of plate motions. This region thus provides the opportunity to study in detail a range of geological issues...
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ftunivroma3iris:oai:iris.uniroma3.it:11590/136820 2024-02-27T08:33:53+00:00 Tectonic and climatic signals from apatite detrital fission track analysis of the Cape Roberts Project core records, South Victoria Land, Antarctica V. Olivetti ML Balestrieri FM Talarico ROSSETTI, FEDERICO V., Olivetti Ml, Balestrieri Rossetti, Federico Fm, Talarico 2013 http://hdl.handle.net/11590/136820 https://doi.org/10.1016/j.tecto.2015.05.027 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000362139400006 volume:594 firstpage:80 lastpage:90 numberofpages:11 journal:TECTONOPHYSICS http://hdl.handle.net/11590/136820 doi:10.1016/j.tecto.2015.05.027 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84877063955 Detrital thermochronology Climate Antarctica info:eu-repo/semantics/article 2013 ftunivroma3iris https://doi.org/10.1016/j.tecto.2015.05.027 2024-01-31T17:38:57Z The Cenozoic tectonic reorganization of the West Antarctic Rift System in the Ross Sea region occurred concurrently with a major change in the global climate system and a global reorganization of plate motions. This region thus provides the opportunity to study in detail a range of geological issues dealing with tectonic and climate feedbacks during the late Eocene/early Oligocene greenhouse/icehouse transition at high latitudes. With the aim to decipher tectonic vs. climatic forcing in the ice sheet drainage evolution, a detrital apatite fission track study was carried out throughout the Cenozoic drill-cored stratigraphic succession of the Cape Roberts Project (McMurdo Sound, Victoria Land Basin). Apatite fission-track ages of detrital samples, with depositional ages between 34 Ma and 17 Ma, were decomposed into statistically significant age populations. Three age peaks were detected, reflecting different bedrock provenance areas: (i) a young peak (P1 between 34 Ma and 26 Ma) recording the signal of a source area exhumed with a constant denudation rate, but absent in the proximal continental area; and (ii) two peaks, older than 40 Ma, that are instead compatible with thermochronological data available from the onshore bedrock. P1 peak testifies a late Oligocene–early Miocene denudation event and traces a southern provenance of a fraction of the sediments filling the Cape Roberts Basin. We propose that this denudation event might have been triggered by renewed N–S transtensional shearing along the western shoulder of Victoria Land Basin, controlling glacial flow pattern and the associated sediment transport. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet McMurdo Sound Ross Sea Victoria Land Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Antarctic Ross Sea Victoria Land McMurdo Sound Cape Roberts ENVELOPE(-70.467,-70.467,-68.950,-68.950) Young Peak ENVELOPE(74.527,74.527,-69.750,-69.750) Tectonophysics 656 74 90 |
institution |
Open Polar |
collection |
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
language |
English |
topic |
Detrital thermochronology Climate Antarctica |
spellingShingle |
Detrital thermochronology Climate Antarctica V. Olivetti ML Balestrieri FM Talarico ROSSETTI, FEDERICO Tectonic and climatic signals from apatite detrital fission track analysis of the Cape Roberts Project core records, South Victoria Land, Antarctica |
topic_facet |
Detrital thermochronology Climate Antarctica |
description |
The Cenozoic tectonic reorganization of the West Antarctic Rift System in the Ross Sea region occurred concurrently with a major change in the global climate system and a global reorganization of plate motions. This region thus provides the opportunity to study in detail a range of geological issues dealing with tectonic and climate feedbacks during the late Eocene/early Oligocene greenhouse/icehouse transition at high latitudes. With the aim to decipher tectonic vs. climatic forcing in the ice sheet drainage evolution, a detrital apatite fission track study was carried out throughout the Cenozoic drill-cored stratigraphic succession of the Cape Roberts Project (McMurdo Sound, Victoria Land Basin). Apatite fission-track ages of detrital samples, with depositional ages between 34 Ma and 17 Ma, were decomposed into statistically significant age populations. Three age peaks were detected, reflecting different bedrock provenance areas: (i) a young peak (P1 between 34 Ma and 26 Ma) recording the signal of a source area exhumed with a constant denudation rate, but absent in the proximal continental area; and (ii) two peaks, older than 40 Ma, that are instead compatible with thermochronological data available from the onshore bedrock. P1 peak testifies a late Oligocene–early Miocene denudation event and traces a southern provenance of a fraction of the sediments filling the Cape Roberts Basin. We propose that this denudation event might have been triggered by renewed N–S transtensional shearing along the western shoulder of Victoria Land Basin, controlling glacial flow pattern and the associated sediment transport. |
author2 |
V., Olivetti Ml, Balestrieri Rossetti, Federico Fm, Talarico |
format |
Article in Journal/Newspaper |
author |
V. Olivetti ML Balestrieri FM Talarico ROSSETTI, FEDERICO |
author_facet |
V. Olivetti ML Balestrieri FM Talarico ROSSETTI, FEDERICO |
author_sort |
V. Olivetti |
title |
Tectonic and climatic signals from apatite detrital fission track analysis of the Cape Roberts Project core records, South Victoria Land, Antarctica |
title_short |
Tectonic and climatic signals from apatite detrital fission track analysis of the Cape Roberts Project core records, South Victoria Land, Antarctica |
title_full |
Tectonic and climatic signals from apatite detrital fission track analysis of the Cape Roberts Project core records, South Victoria Land, Antarctica |
title_fullStr |
Tectonic and climatic signals from apatite detrital fission track analysis of the Cape Roberts Project core records, South Victoria Land, Antarctica |
title_full_unstemmed |
Tectonic and climatic signals from apatite detrital fission track analysis of the Cape Roberts Project core records, South Victoria Land, Antarctica |
title_sort |
tectonic and climatic signals from apatite detrital fission track analysis of the cape roberts project core records, south victoria land, antarctica |
publishDate |
2013 |
url |
http://hdl.handle.net/11590/136820 https://doi.org/10.1016/j.tecto.2015.05.027 |
long_lat |
ENVELOPE(-70.467,-70.467,-68.950,-68.950) ENVELOPE(74.527,74.527,-69.750,-69.750) |
geographic |
Antarctic Ross Sea Victoria Land McMurdo Sound Cape Roberts Young Peak |
geographic_facet |
Antarctic Ross Sea Victoria Land McMurdo Sound Cape Roberts Young Peak |
genre |
Antarc* Antarctic Antarctica Ice Sheet McMurdo Sound Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet McMurdo Sound Ross Sea Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000362139400006 volume:594 firstpage:80 lastpage:90 numberofpages:11 journal:TECTONOPHYSICS http://hdl.handle.net/11590/136820 doi:10.1016/j.tecto.2015.05.027 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84877063955 |
op_doi |
https://doi.org/10.1016/j.tecto.2015.05.027 |
container_title |
Tectonophysics |
container_volume |
656 |
container_start_page |
74 |
op_container_end_page |
90 |
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1792048702707204096 |