Sea-level stands from the Western Mediterranean over the past 6.5 million years
Abstract Sea-level reconstructions are important for understanding past ice sheet variability and its response to past and future warming. Here we present Neogene and Quaternary sea-level snapshots using phreatic overgrowths on speleothems (POS) from caves on Mallorca, Spain. POS are excellent sea l...
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ftdoajarticles:oai:doaj.org/article:9cc890700a344ef2af892e879bee3364 2023-05-15T16:41:02+02:00 Sea-level stands from the Western Mediterranean over the past 6.5 million years Oana A. Dumitru Jacqueline Austermann Victor J. Polyak Joan J. Fornós Yemane Asmerom Joaquín Ginés Angel Ginés Bogdan P. Onac 2021-01-01T00:00:00Z https://doi.org/10.1038/s41598-020-80025-6 https://doaj.org/article/9cc890700a344ef2af892e879bee3364 EN eng Nature Portfolio https://doi.org/10.1038/s41598-020-80025-6 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-020-80025-6 2045-2322 https://doaj.org/article/9cc890700a344ef2af892e879bee3364 Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021) Medicine R Science Q article 2021 ftdoajarticles https://doi.org/10.1038/s41598-020-80025-6 2022-12-31T04:21:00Z Abstract Sea-level reconstructions are important for understanding past ice sheet variability and its response to past and future warming. Here we present Neogene and Quaternary sea-level snapshots using phreatic overgrowths on speleothems (POS) from caves on Mallorca, Spain. POS are excellent sea level index points because of their clear relationship to sea level and precise U–Pb chronology. We find that local sea-level before and at the onset of the Messinian Salinity Crisis was at 33.3 ± 0.25 m (6.54 ± 0.37 Ma) and 31.8 ± 0.25 m (5.86 ± 0.60 Ma) above present levels, respectively. We further present global mean sea level (GMSL) estimates, i.e. local sea level corrected for glacial isostatic adjustment and long-term uplift, for three other POS. The results show that GMSL during the Pliocene–Pleistocene Transition was 6.4 m (− 2.0–8.8 m) at 2.63 ± 0.11 Ma and during the beginning and the end of the Mid-Pleistocene Transition was − 1.1 m (− 5.6–2.4 m) and 5 m (1.5–8.1 m), respectively. These estimates provide important constraints for the past evolution of sea level and show that local sea level prior to the MSC was similar to the highest stand during the Pliocene, with markedly lower position afterwards. Article in Journal/Newspaper Ice Sheet Directory of Open Access Journals: DOAJ Articles Scientific Reports 11 1 |
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Medicine R Science Q Oana A. Dumitru Jacqueline Austermann Victor J. Polyak Joan J. Fornós Yemane Asmerom Joaquín Ginés Angel Ginés Bogdan P. Onac Sea-level stands from the Western Mediterranean over the past 6.5 million years |
topic_facet |
Medicine R Science Q |
description |
Abstract Sea-level reconstructions are important for understanding past ice sheet variability and its response to past and future warming. Here we present Neogene and Quaternary sea-level snapshots using phreatic overgrowths on speleothems (POS) from caves on Mallorca, Spain. POS are excellent sea level index points because of their clear relationship to sea level and precise U–Pb chronology. We find that local sea-level before and at the onset of the Messinian Salinity Crisis was at 33.3 ± 0.25 m (6.54 ± 0.37 Ma) and 31.8 ± 0.25 m (5.86 ± 0.60 Ma) above present levels, respectively. We further present global mean sea level (GMSL) estimates, i.e. local sea level corrected for glacial isostatic adjustment and long-term uplift, for three other POS. The results show that GMSL during the Pliocene–Pleistocene Transition was 6.4 m (− 2.0–8.8 m) at 2.63 ± 0.11 Ma and during the beginning and the end of the Mid-Pleistocene Transition was − 1.1 m (− 5.6–2.4 m) and 5 m (1.5–8.1 m), respectively. These estimates provide important constraints for the past evolution of sea level and show that local sea level prior to the MSC was similar to the highest stand during the Pliocene, with markedly lower position afterwards. |
format |
Article in Journal/Newspaper |
author |
Oana A. Dumitru Jacqueline Austermann Victor J. Polyak Joan J. Fornós Yemane Asmerom Joaquín Ginés Angel Ginés Bogdan P. Onac |
author_facet |
Oana A. Dumitru Jacqueline Austermann Victor J. Polyak Joan J. Fornós Yemane Asmerom Joaquín Ginés Angel Ginés Bogdan P. Onac |
author_sort |
Oana A. Dumitru |
title |
Sea-level stands from the Western Mediterranean over the past 6.5 million years |
title_short |
Sea-level stands from the Western Mediterranean over the past 6.5 million years |
title_full |
Sea-level stands from the Western Mediterranean over the past 6.5 million years |
title_fullStr |
Sea-level stands from the Western Mediterranean over the past 6.5 million years |
title_full_unstemmed |
Sea-level stands from the Western Mediterranean over the past 6.5 million years |
title_sort |
sea-level stands from the western mediterranean over the past 6.5 million years |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41598-020-80025-6 https://doaj.org/article/9cc890700a344ef2af892e879bee3364 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021) |
op_relation |
https://doi.org/10.1038/s41598-020-80025-6 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-020-80025-6 2045-2322 https://doaj.org/article/9cc890700a344ef2af892e879bee3364 |
op_doi |
https://doi.org/10.1038/s41598-020-80025-6 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766031476570193920 |