Five-fold expansion of the Caspian Sea in the late Pliocene:New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage
The Global climate reorganisation in the late Pliocene linked to enhancement of the Atlantic Ocean Thermohaline Circulation (AOTC), instigated a transition to glacial-interglacial cyclicity in the Quaternary. Enhancement of the AOTC amplified atmospheric precipitation over the Eurasian interior stre...
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Online Access: | https://research.vu.nl/en/publications/d7167fe5-b287-4a3a-86ea-b8e039be7899 https://doi.org/10.1016/j.gloplacha.2021.103624 https://hdl.handle.net/1871.1/d7167fe5-b287-4a3a-86ea-b8e039be7899 http://www.scopus.com/inward/record.url?scp=85114130224&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85114130224&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/d7167fe5-b287-4a3a-86ea-b8e039be7899 2024-06-23T07:50:52+00:00 Five-fold expansion of the Caspian Sea in the late Pliocene:New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage Lazarev, S. Kuiper, K. F. Oms, O. Bukhsianidze, M. Vasilyan, D. Jorissen, E. L. Bouwmeester, M. J. Aghayeva, V. van Amerongen, A. J. Agustí, J. Lordkipanidze, D. Krijgsman, W. 2021-11 https://research.vu.nl/en/publications/d7167fe5-b287-4a3a-86ea-b8e039be7899 https://doi.org/10.1016/j.gloplacha.2021.103624 https://hdl.handle.net/1871.1/d7167fe5-b287-4a3a-86ea-b8e039be7899 http://www.scopus.com/inward/record.url?scp=85114130224&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85114130224&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/d7167fe5-b287-4a3a-86ea-b8e039be7899 info:eu-repo/semantics/openAccess Lazarev , S , Kuiper , K F , Oms , O , Bukhsianidze , M , Vasilyan , D , Jorissen , E L , Bouwmeester , M J , Aghayeva , V , van Amerongen , A J , Agustí , J , Lordkipanidze , D & Krijgsman , W 2021 , ' Five-fold expansion of the Caspian Sea in the late Pliocene : New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage ' , Global and Planetary Change , vol. 206 , 103624 , pp. 1-19 . https://doi.org/10.1016/j.gloplacha.2021.103624 Ar/Ar chronology Akchagylian Caspian Basin Kushkuna Kvabebi Magnetostratigraphy Plio–Pleistocene /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2021 ftvuamstcris https://doi.org/10.1016/j.gloplacha.2021.103624 2024-06-06T00:26:23Z The Global climate reorganisation in the late Pliocene linked to enhancement of the Atlantic Ocean Thermohaline Circulation (AOTC), instigated a transition to glacial-interglacial cyclicity in the Quaternary. Enhancement of the AOTC amplified atmospheric precipitation over the Eurasian interior strengthening Northern Hemisphere Glaciation. Increased rainfall on the vast Russian Plain drained into the endorheic Caspian Sea, which makes the Caspian geological record highly potential for tracing atmospheric precipitation changes. Two major palaeohydrological events in the Caspian Sea, the Akchagylian transgression and the Akchagylian marine incursion, led to a five-fold enlargement of the Caspian Sea surface area and transformed the basin palaeoecology, enabling active interregional faunal dispersals. The Akchagylian Stage still lacks an unequivocal age model with two age constraints – the “long Akchagylian” (3.6–1.8 Ma) and the “short Akchagylian” (2.7–2.1 Ma) standing on magnetostratigraphic studies of geological records in Turkmenistan and the Kura Basin, respectively. The age discrepancies also exist within the Kura Basin, where the fossil mammal-bearing Kvabebi locality with Akchagylian marine fauna was magnetostratigraphically dated at 3.2 Ma. In this paper, we try to resolve the age contradictions for the Akchagylian Stage. We revisit the Kvabebi (Georgia) and Kushkuna (Azerbaijan) sections of the western Kura Basin and provide new magnetostratigraphic and 40 Ar/ 39 Ar age constraints on these marginal Akchagylian deposits. Moreover, we revise the magnetostratigraphy of 25 geological records from Turkmenistan and the Kura Basin and propose a new unified age model for the Akchagylian Stage: 1. Intrabasinal Akchagylian freshwater-mesohaline transgression at 2.95 ± 0.02 Ma; 2. Akchagylian marine incursion through establishment of a Caspian-Arctic connection (2.75–2.45 Ma); 3. Akchagylian–Apsheronian boundary highlighting a Caspian-Black Sea connection at 2.13 Ma. The sudden expansion of the Caspian Sea at 2.95 ... Article in Journal/Newspaper Arctic Vrije Universiteit Amsterdam (VU): Research Portal Arctic Global and Planetary Change 206 103624 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
Ar/Ar chronology Akchagylian Caspian Basin Kushkuna Kvabebi Magnetostratigraphy Plio–Pleistocene /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Ar/Ar chronology Akchagylian Caspian Basin Kushkuna Kvabebi Magnetostratigraphy Plio–Pleistocene /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Lazarev, S. Kuiper, K. F. Oms, O. Bukhsianidze, M. Vasilyan, D. Jorissen, E. L. Bouwmeester, M. J. Aghayeva, V. van Amerongen, A. J. Agustí, J. Lordkipanidze, D. Krijgsman, W. Five-fold expansion of the Caspian Sea in the late Pliocene:New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage |
topic_facet |
Ar/Ar chronology Akchagylian Caspian Basin Kushkuna Kvabebi Magnetostratigraphy Plio–Pleistocene /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The Global climate reorganisation in the late Pliocene linked to enhancement of the Atlantic Ocean Thermohaline Circulation (AOTC), instigated a transition to glacial-interglacial cyclicity in the Quaternary. Enhancement of the AOTC amplified atmospheric precipitation over the Eurasian interior strengthening Northern Hemisphere Glaciation. Increased rainfall on the vast Russian Plain drained into the endorheic Caspian Sea, which makes the Caspian geological record highly potential for tracing atmospheric precipitation changes. Two major palaeohydrological events in the Caspian Sea, the Akchagylian transgression and the Akchagylian marine incursion, led to a five-fold enlargement of the Caspian Sea surface area and transformed the basin palaeoecology, enabling active interregional faunal dispersals. The Akchagylian Stage still lacks an unequivocal age model with two age constraints – the “long Akchagylian” (3.6–1.8 Ma) and the “short Akchagylian” (2.7–2.1 Ma) standing on magnetostratigraphic studies of geological records in Turkmenistan and the Kura Basin, respectively. The age discrepancies also exist within the Kura Basin, where the fossil mammal-bearing Kvabebi locality with Akchagylian marine fauna was magnetostratigraphically dated at 3.2 Ma. In this paper, we try to resolve the age contradictions for the Akchagylian Stage. We revisit the Kvabebi (Georgia) and Kushkuna (Azerbaijan) sections of the western Kura Basin and provide new magnetostratigraphic and 40 Ar/ 39 Ar age constraints on these marginal Akchagylian deposits. Moreover, we revise the magnetostratigraphy of 25 geological records from Turkmenistan and the Kura Basin and propose a new unified age model for the Akchagylian Stage: 1. Intrabasinal Akchagylian freshwater-mesohaline transgression at 2.95 ± 0.02 Ma; 2. Akchagylian marine incursion through establishment of a Caspian-Arctic connection (2.75–2.45 Ma); 3. Akchagylian–Apsheronian boundary highlighting a Caspian-Black Sea connection at 2.13 Ma. The sudden expansion of the Caspian Sea at 2.95 ... |
format |
Article in Journal/Newspaper |
author |
Lazarev, S. Kuiper, K. F. Oms, O. Bukhsianidze, M. Vasilyan, D. Jorissen, E. L. Bouwmeester, M. J. Aghayeva, V. van Amerongen, A. J. Agustí, J. Lordkipanidze, D. Krijgsman, W. |
author_facet |
Lazarev, S. Kuiper, K. F. Oms, O. Bukhsianidze, M. Vasilyan, D. Jorissen, E. L. Bouwmeester, M. J. Aghayeva, V. van Amerongen, A. J. Agustí, J. Lordkipanidze, D. Krijgsman, W. |
author_sort |
Lazarev, S. |
title |
Five-fold expansion of the Caspian Sea in the late Pliocene:New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage |
title_short |
Five-fold expansion of the Caspian Sea in the late Pliocene:New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage |
title_full |
Five-fold expansion of the Caspian Sea in the late Pliocene:New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage |
title_fullStr |
Five-fold expansion of the Caspian Sea in the late Pliocene:New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage |
title_full_unstemmed |
Five-fold expansion of the Caspian Sea in the late Pliocene:New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage |
title_sort |
five-fold expansion of the caspian sea in the late pliocene:new and revised magnetostratigraphic and 40 ar/ 39 ar age constraints on the akchagylian stage |
publishDate |
2021 |
url |
https://research.vu.nl/en/publications/d7167fe5-b287-4a3a-86ea-b8e039be7899 https://doi.org/10.1016/j.gloplacha.2021.103624 https://hdl.handle.net/1871.1/d7167fe5-b287-4a3a-86ea-b8e039be7899 http://www.scopus.com/inward/record.url?scp=85114130224&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85114130224&partnerID=8YFLogxK |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Lazarev , S , Kuiper , K F , Oms , O , Bukhsianidze , M , Vasilyan , D , Jorissen , E L , Bouwmeester , M J , Aghayeva , V , van Amerongen , A J , Agustí , J , Lordkipanidze , D & Krijgsman , W 2021 , ' Five-fold expansion of the Caspian Sea in the late Pliocene : New and revised magnetostratigraphic and 40 Ar/ 39 Ar age constraints on the Akchagylian Stage ' , Global and Planetary Change , vol. 206 , 103624 , pp. 1-19 . https://doi.org/10.1016/j.gloplacha.2021.103624 |
op_relation |
https://research.vu.nl/en/publications/d7167fe5-b287-4a3a-86ea-b8e039be7899 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2021.103624 |
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Global and Planetary Change |
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206 |
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103624 |
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