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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Autores principales:	Oana A. Dumitru, Jacqueline Austermann, Victor J. Polyak, Joan J. Fornós, Yemane Asmerom, Joaquín Ginés, Angel Ginés, Bogdan P. Onac
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9cc890700a344ef2af892e879bee3364
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spelling	oai:doaj.org-article:9cc890700a344ef2af892e879bee33642021-12-02T15:23:39ZSea-level stands from the Western Mediterranean over the past 6.5 million years10.1038/s41598-020-80025-62045-2322https://doaj.org/article/9cc890700a344ef2af892e879bee33642021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80025-6https://doaj.org/toc/2045-2322Abstract 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.Oana A. DumitruJacqueline AustermannVictor J. PolyakJoan J. FornósYemane AsmeromJoaquín GinésAngel GinésBogdan P. OnacNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	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
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
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://doaj.org/article/9cc890700a344ef2af892e879bee3364
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Sea-level stands from the Western Mediterranean over the past 6.5 million years

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