The Sea of Marmara during Marine Isotope Stages 5 and 6
International audience Multi-proxy analyses and lithology of two cores, MRS-CS18 and MRS-CS27, from the İmralı Basin of the Sea of Marmara (SoM) provide important new information on environmental conditions, relative sea level, and sill depths of the straits of Bosporus and Dardanelles during the ma...
Published in: | Quaternary Science Reviews |
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Language: | English |
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HAL CCSD
2019
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Online Access: | https://hal.science/hal-02415856 https://hal.science/hal-02415856/document https://hal.science/hal-02415856/file/JQSR_2019_423_SL_080719_sans.pdf https://doi.org/10.1016/j.quascirev.2019.07.031 |
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Institut National de la Recherche Agronomique: ProdINRA |
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English |
topic |
Sea of Marmara Late Quaternary Marine Isotope stages 5-6 Eastern Europe Paleoceanography Sedimentology-marine cores Geochemical proxies Sapropels [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
spellingShingle |
Sea of Marmara Late Quaternary Marine Isotope stages 5-6 Eastern Europe Paleoceanography Sedimentology-marine cores Geochemical proxies Sapropels [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy Çağatay, M. Namik Eriş, K. Kadir Makaroğlu, Özlem Yakupoğlu, Nurettin Henry, Pierre Leroy, Suzanne A.G. Uçarkuş, Gülsen Sakinç, Mehmet Yalamaz, Burak Bozyiğit, Cerennaz Kende, Julia The Sea of Marmara during Marine Isotope Stages 5 and 6 |
topic_facet |
Sea of Marmara Late Quaternary Marine Isotope stages 5-6 Eastern Europe Paleoceanography Sedimentology-marine cores Geochemical proxies Sapropels [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
description |
International audience Multi-proxy analyses and lithology of two cores, MRS-CS18 and MRS-CS27, from the İmralı Basin of the Sea of Marmara (SoM) provide important new information on environmental conditions, relative sea level, and sill depths of the straits of Bosporus and Dardanelles during the marine isotope stages (MIS) 5 and 6. The fossil and multi-proxy geochemical records show that lacustrine conditions prevailed in the SoM during most of MIS-6, from 173 to 134 ka BP, and that the transition to marine conditions during Termination II took place at~134.06±1.10 ka BP. MIS5 interstadials a, c, and e witnessed the formation of three sapropels (MSAP-4, MSAP-3 and MSAP-2) under suboxic to anoxic marine conditions, whereas during stadials MIS5b (~94-86) and MIS5d (~112-105 ka BP), lacustrine and marine conditions with deposition of sediments having relatively low TOC contents (<2 %) prevailed, respectively. Consideration of the global sea level, together with the timing of the marine reconnection of the SoM during Termination II and persistence of the marine conditions during MIS5, except for the MIS5b, suggests that the Dardanelles sill depth was at~-75±5 m during the reconnection at Termination II and at-55±5 m during most of MIS5. On similar considerations of the Black Sea marine reconnections and disruptions during the MIS5, a sill depth of-35 to-40 m (similar to the present day depth) is indicated for the Bosporus Strait. The SoM geochemical proxy records correlate well with the regional terrestrial and marine records and the NGRIP oxygen isotope record with its glacial and interglacial (GI) phases, showing the common effect of the North Atlantic climatic events triggered by the perturbations in the Atlantic Meridional Overturning Circulation (AMOC). However, the amplitude of the oscillations recorded in the SoM during MIS6 (Penultimate Glacial Period) is relatively smaller compared to the MIS4 to MIS2 (Last Glacial Period). |
author2 |
Istanbul Technical University (ITÜ) Istanbul University Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Avrasya Yerbilimleri Enstitüsü ANR-17-EURE-0015,ISBlue,Interdisciplinary Graduate School for the Blue planet(2017) |
format |
Article in Journal/Newspaper |
author |
Çağatay, M. Namik Eriş, K. Kadir Makaroğlu, Özlem Yakupoğlu, Nurettin Henry, Pierre Leroy, Suzanne A.G. Uçarkuş, Gülsen Sakinç, Mehmet Yalamaz, Burak Bozyiğit, Cerennaz Kende, Julia |
author_facet |
Çağatay, M. Namik Eriş, K. Kadir Makaroğlu, Özlem Yakupoğlu, Nurettin Henry, Pierre Leroy, Suzanne A.G. Uçarkuş, Gülsen Sakinç, Mehmet Yalamaz, Burak Bozyiğit, Cerennaz Kende, Julia |
author_sort |
Çağatay, M. Namik |
title |
The Sea of Marmara during Marine Isotope Stages 5 and 6 |
title_short |
The Sea of Marmara during Marine Isotope Stages 5 and 6 |
title_full |
The Sea of Marmara during Marine Isotope Stages 5 and 6 |
title_fullStr |
The Sea of Marmara during Marine Isotope Stages 5 and 6 |
title_full_unstemmed |
The Sea of Marmara during Marine Isotope Stages 5 and 6 |
title_sort |
sea of marmara during marine isotope stages 5 and 6 |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02415856 https://hal.science/hal-02415856/document https://hal.science/hal-02415856/file/JQSR_2019_423_SL_080719_sans.pdf https://doi.org/10.1016/j.quascirev.2019.07.031 |
genre |
NGRIP North Atlantic |
genre_facet |
NGRIP North Atlantic |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-02415856 Quaternary Science Reviews, 2019, 220, pp.124-141. ⟨10.1016/j.quascirev.2019.07.031⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2019.07.031 hal-02415856 https://hal.science/hal-02415856 https://hal.science/hal-02415856/document https://hal.science/hal-02415856/file/JQSR_2019_423_SL_080719_sans.pdf doi:10.1016/j.quascirev.2019.07.031 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2019.07.031 |
container_title |
Quaternary Science Reviews |
container_volume |
220 |
container_start_page |
124 |
op_container_end_page |
141 |
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1802647091524141056 |
spelling |
ftinraparis:oai:HAL:hal-02415856v1 2024-06-23T07:54:49+00:00 The Sea of Marmara during Marine Isotope Stages 5 and 6 Çağatay, M. Namik Eriş, K. Kadir Makaroğlu, Özlem Yakupoğlu, Nurettin Henry, Pierre Leroy, Suzanne A.G. Uçarkuş, Gülsen Sakinç, Mehmet Yalamaz, Burak Bozyiğit, Cerennaz Kende, Julia Istanbul Technical University (ITÜ) Istanbul University Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Avrasya Yerbilimleri Enstitüsü ANR-17-EURE-0015,ISBlue,Interdisciplinary Graduate School for the Blue planet(2017) 2019-09 https://hal.science/hal-02415856 https://hal.science/hal-02415856/document https://hal.science/hal-02415856/file/JQSR_2019_423_SL_080719_sans.pdf https://doi.org/10.1016/j.quascirev.2019.07.031 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2019.07.031 hal-02415856 https://hal.science/hal-02415856 https://hal.science/hal-02415856/document https://hal.science/hal-02415856/file/JQSR_2019_423_SL_080719_sans.pdf doi:10.1016/j.quascirev.2019.07.031 info:eu-repo/semantics/OpenAccess ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-02415856 Quaternary Science Reviews, 2019, 220, pp.124-141. ⟨10.1016/j.quascirev.2019.07.031⟩ Sea of Marmara Late Quaternary Marine Isotope stages 5-6 Eastern Europe Paleoceanography Sedimentology-marine cores Geochemical proxies Sapropels [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy info:eu-repo/semantics/article Journal articles 2019 ftinraparis https://doi.org/10.1016/j.quascirev.2019.07.031 2024-06-11T15:03:33Z International audience Multi-proxy analyses and lithology of two cores, MRS-CS18 and MRS-CS27, from the İmralı Basin of the Sea of Marmara (SoM) provide important new information on environmental conditions, relative sea level, and sill depths of the straits of Bosporus and Dardanelles during the marine isotope stages (MIS) 5 and 6. The fossil and multi-proxy geochemical records show that lacustrine conditions prevailed in the SoM during most of MIS-6, from 173 to 134 ka BP, and that the transition to marine conditions during Termination II took place at~134.06±1.10 ka BP. MIS5 interstadials a, c, and e witnessed the formation of three sapropels (MSAP-4, MSAP-3 and MSAP-2) under suboxic to anoxic marine conditions, whereas during stadials MIS5b (~94-86) and MIS5d (~112-105 ka BP), lacustrine and marine conditions with deposition of sediments having relatively low TOC contents (<2 %) prevailed, respectively. Consideration of the global sea level, together with the timing of the marine reconnection of the SoM during Termination II and persistence of the marine conditions during MIS5, except for the MIS5b, suggests that the Dardanelles sill depth was at~-75±5 m during the reconnection at Termination II and at-55±5 m during most of MIS5. On similar considerations of the Black Sea marine reconnections and disruptions during the MIS5, a sill depth of-35 to-40 m (similar to the present day depth) is indicated for the Bosporus Strait. The SoM geochemical proxy records correlate well with the regional terrestrial and marine records and the NGRIP oxygen isotope record with its glacial and interglacial (GI) phases, showing the common effect of the North Atlantic climatic events triggered by the perturbations in the Atlantic Meridional Overturning Circulation (AMOC). However, the amplitude of the oscillations recorded in the SoM during MIS6 (Penultimate Glacial Period) is relatively smaller compared to the MIS4 to MIS2 (Last Glacial Period). Article in Journal/Newspaper NGRIP North Atlantic Institut National de la Recherche Agronomique: ProdINRA Quaternary Science Reviews 220 124 141 |