气候变化领域集成服务门户(CCPortal): Magneto-biostratigraphic age constraints on the palaeoenvironmental evolution of the South Caspian basin during the Early-Middle Pleistocene (Kura basin; Azerbaijan)

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DOI	10.1016/j.quascirev.2019.105895
	Magneto-biostratigraphic age constraints on the palaeoenvironmental evolution of the South Caspian basin during the Early-Middle Pleistocene (Kura basin; Azerbaijan)
	Lazarev S.; Jorissen E.L.; van de Velde S.; Rausch L.; Stoica M.; Wesselingh F.P.; Van Baak C.G.C.; Yanina T.A.; Aliyeva E.; Krijgsman W.
发表日期	2019
ISSN	0277-3791
卷号	222
英文摘要	The sedimentary record of the Caspian Basin is an exceptional archive for the palaeoenvironmental, palaeoclimatic and biodiversity changes of continental Eurasia. During the Pliocene-Pleistocene, the Caspian Basin was mostly isolated but experienced large lake level fluctuations and short episodes of connection with the open ocean as well as the Black Sea Basin. A series of turnover events shaped a faunal record that forms the backbone of the Caspian geological time scale. The precise ages of these events are still highly debated, mostly due to the lack of well-dated sections. Here, we provide an integrated magneto-biostratigraphic age model for two sections from the Kura Basin – Goychay and Hajigabul. Our results reveal several major intervals with elevated salinity, associated with mesohaline faunas, and propose the following age constraints: 1) The Productive Series-Akchagylian boundary is marked by a marine transgression from the open ocean that occurred around the Gauss-Matuyama reversal (∼2.7–2.6 Ma); 2) The Akchagylian-Apsheronian transition is characterized by a regression event and introduction of a new, “Pontocaspian” mollusc assemblage, dated within the Reunion subchron (∼2.13 Ma). The ostracod assemblages of the two sections do not show a major faunal turnover here; 3) The early Bakunian transgression occurs after the upper Apsheronian lowstand (0.85–0.83 Ma). We conclude that major transitions in the age-indicative mollusc groups sometimes occur at different time intervals (i.e. diachronic) and are highly depended on the local depositional environments. A high-resolution interdisciplinary approach on sections outside the Kura Basin is required to better understand the potential diachroneity of these turnover events in the entire Caspian Basin. © 2019 Elsevier Ltd
英文关键词	Akchagylian; Apsheronian; Bakunian; Biostratigraphy; Caspian Sea; Early – Middle Pleistocene; Kura Basin; Magnetostratigraphy; Mollusc fauna; Ostracods
语种	英语
scopus关键词	Biodiversity; Molluscs; Akchagylian; Apsheronian; Bakunian; Caspian sea; Kura Basin; Magnetostratigraphy; Middle Pleistocene; Ostracods; Biostratigraphy; age determination; biodiversity; biostratigraphy; depositional environment; interdisciplinary approach; lake level; magnetostratigraphy; mollusc; ostracod; paleoenvironment; Pleistocene; Pliocene-Pleistocene boundary; transgression; Azerbaijan; Black Sea; Caspian Basin; Kura Basin; Mascarene Islands; Reunion; Mollusca; Ostracoda
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151750
作者单位	Paleomagnetic Laboratory «Fort Hoofddijk», Department of Earth Sciences, Utrecht University, Budapestlaan 17, Utrecht, 3584CD, Netherlands; Naturalis Biodiversity Center, P.O. Box 9517, Leiden, 2300RA, Netherlands; Department of Geology, Faculty of Geology and Geophysics, Bucharest University, Bǎlcescu Bd. 1, Bucharest, 010041, Romania; CASP, West Building, Madingley Rise, Madingley Road, Cambridge, CB3 0UD, United Kingdom; M.V. Lomonosov Moscow State University, Geographical Faculty, Leninskiye Gory, Moscow, 119992, Russian Federation; Institute of Geology ANAS, H. Javid av., 29A, Baku, 1143, Azerbaijan
推荐引用方式 GB/T 7714	Lazarev S.,Jorissen E.L.,van de Velde S.,et al. Magneto-biostratigraphic age constraints on the palaeoenvironmental evolution of the South Caspian basin during the Early-Middle Pleistocene (Kura basin; Azerbaijan)[J],2019,222.
APA	Lazarev S..,Jorissen E.L..,van de Velde S..,Rausch L..,Stoica M..,...&Krijgsman W..(2019).Magneto-biostratigraphic age constraints on the palaeoenvironmental evolution of the South Caspian basin during the Early-Middle Pleistocene (Kura basin; Azerbaijan).Quaternary Science Reviews,222.
MLA	Lazarev S.,et al."Magneto-biostratigraphic age constraints on the palaeoenvironmental evolution of the South Caspian basin during the Early-Middle Pleistocene (Kura basin; Azerbaijan)".Quaternary Science Reviews 222(2019).