Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean
The Marine Isotope Stage 3 (MIS 3) is considered a period of persistent and rapid climate and sea level variabilities during which eustatic sea level is observed to have varied by tens of meters. Constraints on local sea level during this time are critical for further estimates of these variabilitie...
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fttriple:oai:gotriple.eu:10670/1.1tn3yl 2023-05-15T16:41:05+02:00 Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean Yanchilina, Anastasia G. Grall, Celine Ryan, William B. F. McManus, Jerry F. Major, Candace O. 2019-03-20 https://doi.org/10.5194/cp-2019-30 https://cp.copernicus.org/preprints/cp-2019-30/ en eng doi:10.5194/cp-2019-30 10670/1.1tn3yl https://cp.copernicus.org/preprints/cp-2019-30/ undefined Geographica Helvetica - geography eISSN: 1814-9332 envir archeo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 2019 fttriple https://doi.org/10.5194/cp-2019-30 2023-01-22T16:55:04Z The Marine Isotope Stage 3 (MIS 3) is considered a period of persistent and rapid climate and sea level variabilities during which eustatic sea level is observed to have varied by tens of meters. Constraints on local sea level during this time are critical for further estimates of these variabilities. We here present constraints on relative sea level in the Marmara and Black Sea regions in the northeastern Mediterranean, inferred from reconstructions of the history of the connections and disconnections (partial or total) of these seas together with the global ocean. We use a set of independent data from seismic imaging and core-analyses to infer that the Marmara and Black Seas remained connected persistent freshwater lakes that outflowed to the global ocean during the majority of MIS 3. Marine water intrusion during the early MIS-3 stage may have occurred into the Marmara Sea-Lake but not the Black Sea-Lake. This suggests that the relative sea level was near the paleo-elevation of the Bosporus sill and possibly slightly above the Dardanelles paleo-elevation, ~80 mbsl. The Eustatic sea level may have been even lower, considering the isostatic effects of the Eurasian ice sheet would have locally uplifted the topography of the northeastern Mediterrranean. Text Ice Sheet Unknown |
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envir archeo Yanchilina, Anastasia G. Grall, Celine Ryan, William B. F. McManus, Jerry F. Major, Candace O. Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean |
topic_facet |
envir archeo |
description |
The Marine Isotope Stage 3 (MIS 3) is considered a period of persistent and rapid climate and sea level variabilities during which eustatic sea level is observed to have varied by tens of meters. Constraints on local sea level during this time are critical for further estimates of these variabilities. We here present constraints on relative sea level in the Marmara and Black Sea regions in the northeastern Mediterranean, inferred from reconstructions of the history of the connections and disconnections (partial or total) of these seas together with the global ocean. We use a set of independent data from seismic imaging and core-analyses to infer that the Marmara and Black Seas remained connected persistent freshwater lakes that outflowed to the global ocean during the majority of MIS 3. Marine water intrusion during the early MIS-3 stage may have occurred into the Marmara Sea-Lake but not the Black Sea-Lake. This suggests that the relative sea level was near the paleo-elevation of the Bosporus sill and possibly slightly above the Dardanelles paleo-elevation, ~80 mbsl. The Eustatic sea level may have been even lower, considering the isostatic effects of the Eurasian ice sheet would have locally uplifted the topography of the northeastern Mediterrranean. |
format |
Text |
author |
Yanchilina, Anastasia G. Grall, Celine Ryan, William B. F. McManus, Jerry F. Major, Candace O. |
author_facet |
Yanchilina, Anastasia G. Grall, Celine Ryan, William B. F. McManus, Jerry F. Major, Candace O. |
author_sort |
Yanchilina, Anastasia G. |
title |
Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean |
title_short |
Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean |
title_full |
Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean |
title_fullStr |
Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean |
title_full_unstemmed |
Lack of marine entry into Marmara and Black Sea-lakes indicate low relative sea level during MIS 3 in the northeastern Mediterranean |
title_sort |
lack of marine entry into marmara and black sea-lakes indicate low relative sea level during mis 3 in the northeastern mediterranean |
publishDate |
2019 |
url |
https://doi.org/10.5194/cp-2019-30 https://cp.copernicus.org/preprints/cp-2019-30/ |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Geographica Helvetica - geography eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-2019-30 10670/1.1tn3yl https://cp.copernicus.org/preprints/cp-2019-30/ |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-2019-30 |
_version_ |
1766031524021403648 |