MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium
Sea-level indicators dated to the Last Interglacial, or Marine Isotope Stage (MIS) 5e, have a twofold value. First, they can be used to constrain the melting of Greenland and Antarctic Ice Sheets in response to global warming scenarios. Second, they can be used to calculate the vertical crustal rate...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/362478 2023-11-12T04:06:41+01:00 MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium Stocchi, Paolo Vacchi, Matteo Lorscheid, Thomas de Boer, Bas Simms, Alexander R. van de Wal, Roderik S.W. Vermeersen, Bert L.A. Pappalardo, Marta Rovere, Alessio Sub Dynamics Meteorology Marine and Atmospheric Research 2018-04-01 application/pdf https://dspace.library.uu.nl/handle/1874/362478 en eng 0277-3791 https://dspace.library.uu.nl/handle/1874/362478 info:eu-repo/semantics/OpenAccess Coastal Geomorphology Mediterranean Sea Pleistocene Sea level changes Taverne Global and Planetary Change Ecology Evolution Behavior and Systematics Archaeology Geology Article 2018 ftunivutrecht 2023-11-01T23:16:43Z Sea-level indicators dated to the Last Interglacial, or Marine Isotope Stage (MIS) 5e, have a twofold value. First, they can be used to constrain the melting of Greenland and Antarctic Ice Sheets in response to global warming scenarios. Second, they can be used to calculate the vertical crustal rates at active margins. For both applications, the contribution of glacio- and hydro-isostatic adjustment (GIA) to vertical displacement of sea-level indicators must be calculated. In this paper, we re-assess MIS 5e sea-level indicators at 11 Mediterranean sites that have been generally considered tectonically stable or affected by mild tectonics. These are found within a range of elevations of 2–10 m above modern mean sea level. Four sites are characterized by two separate sea-level stands, which suggest a two-step sea-level highstand during MIS 5e. Comparing field data with numerical modeling we show that (i) GIA is an important contributor to the spatial and temporal variability of the sea-level highstand during MIS 5e, (ii) the isostatic imbalance from the melting of the MIS 6 ice sheet can produce a >2.0 m sea-level highstand, and (iii) a two-step melting phase for the Greenland and Antarctic Ice Sheets reduces the differences between observations and predictions. Our results show that assumptions of tectonic stability on the basis of the MIS 5e records carry intrinsically large uncertainties, stemming either from uncertainties in field data and GIA models. The latter are propagated to either Holocene or Pleistocene sea-level reconstructions if tectonic rates are considered linear through time. Article in Journal/Newspaper Antarc* Antarctic Greenland Ice Sheet Utrecht University Repository Antarctic Greenland |
institution |
Open Polar |
collection |
Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
topic |
Coastal Geomorphology Mediterranean Sea Pleistocene Sea level changes Taverne Global and Planetary Change Ecology Evolution Behavior and Systematics Archaeology Geology |
spellingShingle |
Coastal Geomorphology Mediterranean Sea Pleistocene Sea level changes Taverne Global and Planetary Change Ecology Evolution Behavior and Systematics Archaeology Geology Stocchi, Paolo Vacchi, Matteo Lorscheid, Thomas de Boer, Bas Simms, Alexander R. van de Wal, Roderik S.W. Vermeersen, Bert L.A. Pappalardo, Marta Rovere, Alessio MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium |
topic_facet |
Coastal Geomorphology Mediterranean Sea Pleistocene Sea level changes Taverne Global and Planetary Change Ecology Evolution Behavior and Systematics Archaeology Geology |
description |
Sea-level indicators dated to the Last Interglacial, or Marine Isotope Stage (MIS) 5e, have a twofold value. First, they can be used to constrain the melting of Greenland and Antarctic Ice Sheets in response to global warming scenarios. Second, they can be used to calculate the vertical crustal rates at active margins. For both applications, the contribution of glacio- and hydro-isostatic adjustment (GIA) to vertical displacement of sea-level indicators must be calculated. In this paper, we re-assess MIS 5e sea-level indicators at 11 Mediterranean sites that have been generally considered tectonically stable or affected by mild tectonics. These are found within a range of elevations of 2–10 m above modern mean sea level. Four sites are characterized by two separate sea-level stands, which suggest a two-step sea-level highstand during MIS 5e. Comparing field data with numerical modeling we show that (i) GIA is an important contributor to the spatial and temporal variability of the sea-level highstand during MIS 5e, (ii) the isostatic imbalance from the melting of the MIS 6 ice sheet can produce a >2.0 m sea-level highstand, and (iii) a two-step melting phase for the Greenland and Antarctic Ice Sheets reduces the differences between observations and predictions. Our results show that assumptions of tectonic stability on the basis of the MIS 5e records carry intrinsically large uncertainties, stemming either from uncertainties in field data and GIA models. The latter are propagated to either Holocene or Pleistocene sea-level reconstructions if tectonic rates are considered linear through time. |
author2 |
Sub Dynamics Meteorology Marine and Atmospheric Research |
format |
Article in Journal/Newspaper |
author |
Stocchi, Paolo Vacchi, Matteo Lorscheid, Thomas de Boer, Bas Simms, Alexander R. van de Wal, Roderik S.W. Vermeersen, Bert L.A. Pappalardo, Marta Rovere, Alessio |
author_facet |
Stocchi, Paolo Vacchi, Matteo Lorscheid, Thomas de Boer, Bas Simms, Alexander R. van de Wal, Roderik S.W. Vermeersen, Bert L.A. Pappalardo, Marta Rovere, Alessio |
author_sort |
Stocchi, Paolo |
title |
MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium |
title_short |
MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium |
title_full |
MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium |
title_fullStr |
MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium |
title_full_unstemmed |
MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium |
title_sort |
mis 5e relative sea-level changes in the mediterranean sea: contribution of isostatic disequilibrium |
publishDate |
2018 |
url |
https://dspace.library.uu.nl/handle/1874/362478 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Greenland Ice Sheet |
genre_facet |
Antarc* Antarctic Greenland Ice Sheet |
op_relation |
0277-3791 https://dspace.library.uu.nl/handle/1874/362478 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782327711858950144 |