Ostracods reveal the palaeoenvironmental changes in Laizhou Bay, Bohai Sea (eastern China) since the Late Pleistocene

He Wang; Hua Xu; Kyawt K.T. Aye; Yuanyuan Hong; Meizhen Cao; Moriaki Yasuhara

doi:10.1016/j.marmicro.2022.102150

Ostracods reveal the palaeoenvironmental changes in Laizhou Bay, Bohai Sea (eastern China) since the Late Pleistocene

He Wang^*
, Hua Xu
, Kyawt K.T. Aye
, Yuanyuan Hong
, Meizhen Cao
, Moriaki Yasuhara^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

Abstract

Laizhou Bay is located in the Bohai Sea, eastern China. Since the Late Pleistocene, Laizhou Bay has gone through frequent transgressive and regressive activities and both marine and non-marine sediments have been deposited. In order to further understand the palaeoenvironmental changes since the Late Pleistocene, a core (DK06) was drilled on the coastal plain of Laizhou Bay. From this core, we obtained abundant well-preserved ostracod specimens. After environmental analysis and cluster analysis of these ostracods, four biofacies have been recognised: Biofacies I (shallow marine facies), Biofacies II (estuarine facies), Biofacies III (brackish water facies), Biofacies IV (freshwater facies). The studied ostracod assemblages suggest that the palaeoenvironment of Laizhou Bay went through four transgressions including three well-known marine transgressions during MIS 1, MIS 3 and probably MIS 5 and three regressions since the late Pleistocene, indicating substantial impact of glacial-interglacial sea level changes on the Bohai Sea coastal areas and their biota. © 2022

Original language	English
Article number	102150
Journal	Marine Micropaleontology
Volume	175
Online published	24 Jun 2022
DOIs	https://doi.org/10.1016/j.marmicro.2022.102150
Publication status	Published - Aug 2022
Externally published	Yes

Funding

We thank two anonymous reviewers and the editor-in-chief for their careful reading of our submission and their constructive suggestions for improvements. Thanks also go to Jim Davy for SEM imaging. This work was supported by the State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences) (No. 20202104 ) and the Natural Science Foundation of Jiangsu Province (No. BK20210991 ).

Research Keywords

Bohai Sea
Eastern China
Laizhou Bay
Ostracods
Palaeoenvironment

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10.1016/j.marmicro.2022.102150

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title = "Ostracods reveal the palaeoenvironmental changes in Laizhou Bay, Bohai Sea (eastern China) since the Late Pleistocene",

abstract = "Laizhou Bay is located in the Bohai Sea, eastern China. Since the Late Pleistocene, Laizhou Bay has gone through frequent transgressive and regressive activities and both marine and non-marine sediments have been deposited. In order to further understand the palaeoenvironmental changes since the Late Pleistocene, a core (DK06) was drilled on the coastal plain of Laizhou Bay. From this core, we obtained abundant well-preserved ostracod specimens. After environmental analysis and cluster analysis of these ostracods, four biofacies have been recognised: Biofacies I (shallow marine facies), Biofacies II (estuarine facies), Biofacies III (brackish water facies), Biofacies IV (freshwater facies). The studied ostracod assemblages suggest that the palaeoenvironment of Laizhou Bay went through four transgressions including three well-known marine transgressions during MIS 1, MIS 3 and probably MIS 5 and three regressions since the late Pleistocene, indicating substantial impact of glacial-interglacial sea level changes on the Bohai Sea coastal areas and their biota. {\textcopyright} 2022",

keywords = "Bohai Sea, Eastern China, Laizhou Bay, Ostracods, Palaeoenvironment",

author = "He Wang and Hua Xu and Aye, \{Kyawt K.T.\} and Yuanyuan Hong and Meizhen Cao and Moriaki Yasuhara",

year = "2022",

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doi = "10.1016/j.marmicro.2022.102150",

language = "English",

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T1 - Ostracods reveal the palaeoenvironmental changes in Laizhou Bay, Bohai Sea (eastern China) since the Late Pleistocene

AU - Wang, He

AU - Xu, Hua

AU - Aye, Kyawt K.T.

AU - Hong, Yuanyuan

AU - Cao, Meizhen

AU - Yasuhara, Moriaki

PY - 2022/8

Y1 - 2022/8

N2 - Laizhou Bay is located in the Bohai Sea, eastern China. Since the Late Pleistocene, Laizhou Bay has gone through frequent transgressive and regressive activities and both marine and non-marine sediments have been deposited. In order to further understand the palaeoenvironmental changes since the Late Pleistocene, a core (DK06) was drilled on the coastal plain of Laizhou Bay. From this core, we obtained abundant well-preserved ostracod specimens. After environmental analysis and cluster analysis of these ostracods, four biofacies have been recognised: Biofacies I (shallow marine facies), Biofacies II (estuarine facies), Biofacies III (brackish water facies), Biofacies IV (freshwater facies). The studied ostracod assemblages suggest that the palaeoenvironment of Laizhou Bay went through four transgressions including three well-known marine transgressions during MIS 1, MIS 3 and probably MIS 5 and three regressions since the late Pleistocene, indicating substantial impact of glacial-interglacial sea level changes on the Bohai Sea coastal areas and their biota. © 2022

AB - Laizhou Bay is located in the Bohai Sea, eastern China. Since the Late Pleistocene, Laizhou Bay has gone through frequent transgressive and regressive activities and both marine and non-marine sediments have been deposited. In order to further understand the palaeoenvironmental changes since the Late Pleistocene, a core (DK06) was drilled on the coastal plain of Laizhou Bay. From this core, we obtained abundant well-preserved ostracod specimens. After environmental analysis and cluster analysis of these ostracods, four biofacies have been recognised: Biofacies I (shallow marine facies), Biofacies II (estuarine facies), Biofacies III (brackish water facies), Biofacies IV (freshwater facies). The studied ostracod assemblages suggest that the palaeoenvironment of Laizhou Bay went through four transgressions including three well-known marine transgressions during MIS 1, MIS 3 and probably MIS 5 and three regressions since the late Pleistocene, indicating substantial impact of glacial-interglacial sea level changes on the Bohai Sea coastal areas and their biota. © 2022

KW - Bohai Sea

KW - Eastern China

KW - Laizhou Bay

KW - Ostracods

KW - Palaeoenvironment

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U2 - 10.1016/j.marmicro.2022.102150

DO - 10.1016/j.marmicro.2022.102150

M3 - RGC 21 - Publication in refereed journal

SN - 0377-8398

VL - 175

JO - Marine Micropaleontology

JF - Marine Micropaleontology

M1 - 102150

ER -

Ostracods reveal the palaeoenvironmental changes in Laizhou Bay, Bohai Sea (eastern China) since the Late Pleistocene

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