A highly resolved record of relative sea level in the western Mediterranean Sea during the last interglacial period
The magnitude and trajectory of sea-level change during marine isotope stage (MIS) 5e of the last interglacial period is uncertain. In general, sea level may have been 6–9 m above present sea level, with one or more oscillations of up to several metres superimposed. Here we present a well-dated rela...
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ftunisfloridatam:oai:digitalcommons.usf.edu:kip_articles-3397 2023-05-15T16:41:08+02:00 A highly resolved record of relative sea level in the western Mediterranean Sea during the last interglacial period Polyak, Victor J. Onac, Bogdan P. Fornós, Joan J. Hay, Carling Asmerom, Yemane Dorale, Jeffery A. Ginés, Joaquín Tuccimei, Paola Ginés, Angel 2018-09-10T07:00:00Z https://digitalcommons.usf.edu/kip_articles/2398 https://doi.org/10.1038/s41561-018-0222-5 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/kip_articles/2398 https://doi.org/10.1038/s41561-018-0222-5 KIP Articles Geochemistry Palaeoceanography Palaeoclimate text 2018 ftunisfloridatam https://doi.org/10.1038/s41561-018-0222-5 2022-10-27T17:50:02Z The magnitude and trajectory of sea-level change during marine isotope stage (MIS) 5e of the last interglacial period is uncertain. In general, sea level may have been 6–9 m above present sea level, with one or more oscillations of up to several metres superimposed. Here we present a well-dated relative sea-level record from the island of Mallorca in the western Mediterranean Sea for MIS-5e, based on the occurrence of phreatic overgrowths on speleothems forming near sea level. We find that relative sea-level in this region was within a range of 2.15 ± 0.75 m above present levels between 126,600 ± 400 and 116,000 ± 800 years ago, although centennial-scale excursions cannot be excluded due to some gaps in the speleothem record. We corrected our relative sea-level record for glacio-isostatic adjustment using nine different glacial isostatic models. Together, these models suggest that ice-equivalent sea-level in Mallorca peaked at the start of MIS-5e then gradually decreased and stabilized by 122,000 years ago, until the highstand termination 116,000 years ago. Our sea-level record does not support the hypothesis of rapid sea-level fluctuations within MIS-5e. Instead, we suggest that melting of the polar ice sheets occurred early in the interglacial period, followed by gradual ice-sheet growth. Text Ice Sheet Digital Commons University of South Florida (USF) Nature Geoscience 11 11 860 864 |
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Open Polar |
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Digital Commons University of South Florida (USF) |
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ftunisfloridatam |
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unknown |
topic |
Geochemistry Palaeoceanography Palaeoclimate |
spellingShingle |
Geochemistry Palaeoceanography Palaeoclimate Polyak, Victor J. Onac, Bogdan P. Fornós, Joan J. Hay, Carling Asmerom, Yemane Dorale, Jeffery A. Ginés, Joaquín Tuccimei, Paola Ginés, Angel A highly resolved record of relative sea level in the western Mediterranean Sea during the last interglacial period |
topic_facet |
Geochemistry Palaeoceanography Palaeoclimate |
description |
The magnitude and trajectory of sea-level change during marine isotope stage (MIS) 5e of the last interglacial period is uncertain. In general, sea level may have been 6–9 m above present sea level, with one or more oscillations of up to several metres superimposed. Here we present a well-dated relative sea-level record from the island of Mallorca in the western Mediterranean Sea for MIS-5e, based on the occurrence of phreatic overgrowths on speleothems forming near sea level. We find that relative sea-level in this region was within a range of 2.15 ± 0.75 m above present levels between 126,600 ± 400 and 116,000 ± 800 years ago, although centennial-scale excursions cannot be excluded due to some gaps in the speleothem record. We corrected our relative sea-level record for glacio-isostatic adjustment using nine different glacial isostatic models. Together, these models suggest that ice-equivalent sea-level in Mallorca peaked at the start of MIS-5e then gradually decreased and stabilized by 122,000 years ago, until the highstand termination 116,000 years ago. Our sea-level record does not support the hypothesis of rapid sea-level fluctuations within MIS-5e. Instead, we suggest that melting of the polar ice sheets occurred early in the interglacial period, followed by gradual ice-sheet growth. |
format |
Text |
author |
Polyak, Victor J. Onac, Bogdan P. Fornós, Joan J. Hay, Carling Asmerom, Yemane Dorale, Jeffery A. Ginés, Joaquín Tuccimei, Paola Ginés, Angel |
author_facet |
Polyak, Victor J. Onac, Bogdan P. Fornós, Joan J. Hay, Carling Asmerom, Yemane Dorale, Jeffery A. Ginés, Joaquín Tuccimei, Paola Ginés, Angel |
author_sort |
Polyak, Victor J. |
title |
A highly resolved record of relative sea level in the western Mediterranean Sea during the last interglacial period |
title_short |
A highly resolved record of relative sea level in the western Mediterranean Sea during the last interglacial period |
title_full |
A highly resolved record of relative sea level in the western Mediterranean Sea during the last interglacial period |
title_fullStr |
A highly resolved record of relative sea level in the western Mediterranean Sea during the last interglacial period |
title_full_unstemmed |
A highly resolved record of relative sea level in the western Mediterranean Sea during the last interglacial period |
title_sort |
highly resolved record of relative sea level in the western mediterranean sea during the last interglacial period |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2018 |
url |
https://digitalcommons.usf.edu/kip_articles/2398 https://doi.org/10.1038/s41561-018-0222-5 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
KIP Articles |
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https://digitalcommons.usf.edu/kip_articles/2398 https://doi.org/10.1038/s41561-018-0222-5 |
op_doi |
https://doi.org/10.1038/s41561-018-0222-5 |
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Nature Geoscience |
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11 |
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11 |
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860 |
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864 |
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