The sedimentary succession of the last 2.25 Myr in the Bohai Strait: Implications for the Quaternary paleoenvironmental evolution of the Bohai Sea

doi:10.1016/j.palaeo.2021.110704

	The sedimentary succession of the last 2.25 Myr in the Bohai Strait: Implications for the Quaternary paleoenvironmental evolution of the Bohai Sea
	Sun, Jun 4,5,6; Guo, Fei 3; Wu, Huaichun 6; Yang, Huiliang 2,4,5; Qiang, Xiaoke 3; Chu, Hongxian 2,4,5; He, Lei 4,5; Mei, Xi 4,5; Jiang, Jing 1; Wang, Shuang 4,5
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
	2022
卷号	585 页码:12
关键词	Sea-level Sedimentology Transgression Paleoenvironment Magnetostratigraphy Tectonic subsidence
ISSN号	0031-0182
DOI	10.1016/j.palaeo.2021.110704
通讯作者	Liu, Jian(liujian0550@vip.sina.com) ; Chen, Xiaohui(hongzi1982@163.com)
英文摘要	The Bohai Strait connects the Bohai Sea with the Yellow Sea, allowing material and energy exchange between the seas. The sedimentary record in this region is important for reconstructing the Quaternary sea-level changes and environmental evolution in the Bohai Sea area; however, long sedimentary sequences with a reliable chronological framework from this area are scarce. We assessed the sedimentary characteristics, grain size, microfossils, accelerator mass spectrometry 14C ages and optically stimulated luminescence ages of core BHS01 from the Bohai Strait. From these and previous paleomagnetic results, new insights into regional sea-level changes and environmental evolution in the Bohai Strait over the last 2.25 Myr are obtained. The sedimentology and environmental proxies (benthic foraminifera and marine ostracods) indicate that the sedimentary environment of the area around core BHS01 was mainly dominated by fluvial-lacustrine deposits from 2.25 to 0.89 Ma, and subsequently by alternating marine and fluvial deposits. Comparative analyses of the chronological and sedimentary results of core BHS01 with previous drilling records in the eastern marginal seas of China revealed that the Quaternary initial marine transgression of the Bohai Sea occurred no later than 0.89 Ma (latest early Pleistocene) since Quaternary. The initial transgression presumably resulted from the partial subsidence and disintegration of the Miaodao Islands Uplift with sea-level rise during this period or slightly earlier. This result is generally consistent with the timing of the Quaternary regional marine transgressive processes of the Yellow and Bohai seas; thus, we propose a conceptual model in which the first marine transgression of the Yellow Sea and the Bohai Sea during the Quaternary occurred no later than 1.66 Ma and 0.89 Ma, respectively. This study provides new evidence for understanding the Quaternary sea-level changes and regional environmental evolution in the Bohai Sea.
资助项目	China Geological Survey program[DD20190365] ; China Geological Survey program[DD20190377] ; China Geological Survey program[DD20191003] ; China Geological Survey program[DD20190208] ; China Geological Survey program[DD20189503] ; National Natural Science Foundation of China (NSFC)[41330964] ; National Natural Science Foundation of China (NSFC)[41706073] ; National Natural Science Foundation of China (NSFC)[41606083] ; National Natural Science Foundation of China (NSFC)[41776081]
WOS关键词	YELLOW SEA ; CHINA IMPLICATIONS ; MAGNETOSTRATIGRAPHY ; LUMINESCENCE ; CORE ; CONSTRAINTS ; EAST ; MA ; HISTORY ; CLIMATE
WOS研究方向	Physical Geography ; Geology ; Paleontology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000744171200006
资助机构	China Geological Survey program ; National Natural Science Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17403]
专题	地球环境研究所_古环境研究室
通讯作者	Liu, Jian; Chen, Xiaohui
作者单位	1.China Ocean Mineral Resources R&D Assoc, Beijing 100860, Peoples R China 2.China Geol Survey, Yantai Ctr Coastal Zone Geol, Yantai 264000, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China 5.China Geol Survey, Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China 6.China Univ Geosci, Sch Ocean Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jun,Guo, Fei,Wu, Huaichun,et al. The sedimentary succession of the last 2.25 Myr in the Bohai Strait: Implications for the Quaternary paleoenvironmental evolution of the Bohai Sea[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2022,585:12.
APA	Sun, Jun.,Guo, Fei.,Wu, Huaichun.,Yang, Huiliang.,Qiang, Xiaoke.,...&Chen, Xiaohui.(2022).The sedimentary succession of the last 2.25 Myr in the Bohai Strait: Implications for the Quaternary paleoenvironmental evolution of the Bohai Sea.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,585,12.
MLA	Sun, Jun,et al."The sedimentary succession of the last 2.25 Myr in the Bohai Strait: Implications for the Quaternary paleoenvironmental evolution of the Bohai Sea".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 585(2022):12.