Apatite Fission Track Signatures of the Ross Sea Ice Flows During the Last Glacial Maximum
Abstract The catchment for the Ross Sea ice includes both the East and the West Antarctic ice sheets, but the mass balance is a direct response to climate change. Our work is aimed to reconstruct the ice flows after the Last Glacial Maximum and is based on apatite fission track data from samples col...
Published in: | Geochemistry, Geophysics, Geosystems |
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ftdoajarticles:oai:doaj.org/article:6f9572ff8ca344c0afddd45bed9035ec 2023-12-03T10:09:51+01:00 Apatite Fission Track Signatures of the Ross Sea Ice Flows During the Last Glacial Maximum X. Li M. Zattin V. Olivetti 2020-10-01T00:00:00Z https://doi.org/10.1029/2019GC008749 https://doaj.org/article/6f9572ff8ca344c0afddd45bed9035ec EN eng Wiley https://doi.org/10.1029/2019GC008749 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2019GC008749 https://doaj.org/article/6f9572ff8ca344c0afddd45bed9035ec Geochemistry, Geophysics, Geosystems, Vol 21, Iss 10, Pp n/a-n/a (2020) detrital thermochronology Ross Sea Late Glacial Maximum Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.1029/2019GC008749 2023-11-05T01:36:02Z Abstract The catchment for the Ross Sea ice includes both the East and the West Antarctic ice sheets, but the mass balance is a direct response to climate change. Our work is aimed to reconstruct the ice flows after the Last Glacial Maximum and is based on apatite fission track data from samples collected from 18 piston cores across the Ross Sea embayment. Fission track ages have been divided into meaningful populations and then compared with bedrock ages from West and East Antarctica. Furthermore, fission track lengths have been measured on each population and then compared through forward modeling with thermal histories derived from literature. The widespread presence of apatites with cooling ages of about 30–40 Ma reveals a main exhumation phase of the Transantarctic Mountains during the Oligocene associated to the last phases of the West Antarctic Rift System. Furthermore, the presence of key marker apatites (e.g., younger than 21 Ma or older than 230 Ma) allows to identify the Central High as a major ice flow divide. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ross Sea Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic East Antarctica Ross Sea Transantarctic Mountains Geochemistry, Geophysics, Geosystems 21 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
detrital thermochronology Ross Sea Late Glacial Maximum Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
spellingShingle |
detrital thermochronology Ross Sea Late Glacial Maximum Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 X. Li M. Zattin V. Olivetti Apatite Fission Track Signatures of the Ross Sea Ice Flows During the Last Glacial Maximum |
topic_facet |
detrital thermochronology Ross Sea Late Glacial Maximum Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
description |
Abstract The catchment for the Ross Sea ice includes both the East and the West Antarctic ice sheets, but the mass balance is a direct response to climate change. Our work is aimed to reconstruct the ice flows after the Last Glacial Maximum and is based on apatite fission track data from samples collected from 18 piston cores across the Ross Sea embayment. Fission track ages have been divided into meaningful populations and then compared with bedrock ages from West and East Antarctica. Furthermore, fission track lengths have been measured on each population and then compared through forward modeling with thermal histories derived from literature. The widespread presence of apatites with cooling ages of about 30–40 Ma reveals a main exhumation phase of the Transantarctic Mountains during the Oligocene associated to the last phases of the West Antarctic Rift System. Furthermore, the presence of key marker apatites (e.g., younger than 21 Ma or older than 230 Ma) allows to identify the Central High as a major ice flow divide. |
format |
Article in Journal/Newspaper |
author |
X. Li M. Zattin V. Olivetti |
author_facet |
X. Li M. Zattin V. Olivetti |
author_sort |
X. Li |
title |
Apatite Fission Track Signatures of the Ross Sea Ice Flows During the Last Glacial Maximum |
title_short |
Apatite Fission Track Signatures of the Ross Sea Ice Flows During the Last Glacial Maximum |
title_full |
Apatite Fission Track Signatures of the Ross Sea Ice Flows During the Last Glacial Maximum |
title_fullStr |
Apatite Fission Track Signatures of the Ross Sea Ice Flows During the Last Glacial Maximum |
title_full_unstemmed |
Apatite Fission Track Signatures of the Ross Sea Ice Flows During the Last Glacial Maximum |
title_sort |
apatite fission track signatures of the ross sea ice flows during the last glacial maximum |
publisher |
Wiley |
publishDate |
2020 |
url |
https://doi.org/10.1029/2019GC008749 https://doaj.org/article/6f9572ff8ca344c0afddd45bed9035ec |
geographic |
Antarctic East Antarctica Ross Sea Transantarctic Mountains |
geographic_facet |
Antarctic East Antarctica Ross Sea Transantarctic Mountains |
genre |
Antarc* Antarctic Antarctica East Antarctica Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ross Sea Sea ice |
op_source |
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 10, Pp n/a-n/a (2020) |
op_relation |
https://doi.org/10.1029/2019GC008749 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2019GC008749 https://doaj.org/article/6f9572ff8ca344c0afddd45bed9035ec |
op_doi |
https://doi.org/10.1029/2019GC008749 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
21 |
container_issue |
10 |
_version_ |
1784268210250448896 |