IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
Sedimentary history of the western Bohai coastal plain since the late Pliocene: Implications on tectonic, climatic and sea-level changes
Yao, ZQ (Yao, Zhengquan)[1,2]; Guo, ZT (Guo, Zhengtang)[3]; Xiao, GQ (Xiao, Guoqiao)[4]; Wang, Q (Wang, Qiang)[5]; Shi, XF (Shi, Xuefa)[1]; Wang, XY (Wang, Xianyan)[6]
2012-08-02
Source PublicationJOURNAL OF ASIAN EARTH SCIENCES
Volume54-55Pages:192-202
Subtype期刊论文
Abstract

Thick Cenozoic deposits from the western Bohai coastal plain, a tectonic-subsiding region, provide the potential to study the relations between sedimentary environments and tectonic, climatic and sea-level changes. However, sedimentary history of this region extending to the whole Quaternary, as well as their links to tectonic, climatic and sea-level changes are still poorly understood, mainly because of the lack of long-term records with well-constrained chronology. In this study, we present an integrated record based on sedimentology and proxies (grain-size and color reflectance) of a 203.6 m core recovered from the western Bohai coastal plain near Tianjin. The core was chronologically well constrained using paleomagnetic and optically stimulated luminescence dating methods. The results show that from the late Pliocene (similar to 3.3 Ma) to the late Pleistocene (similar to 0.10 Ma), the study region was mainly dominated by fluvial setting, and the extensive incursion of sea water into this region began during the last interglacial period (similar to 0.10 Ma). The sedimentology and the color index suggest that tectonic subsidence of the Bohai Basin during the Plio-Quaternary must have played a significant role in controlling the sedimentary environments in this region. The changes in base-level because of sea-level fluctuations during the Quaternary influenced the fluvial development greatly and led to the alternations of coarse crevasse splay/channel and finer floodplain deposits in the core sequence. In addition, climatic changes since the late Pliocene also have had significant effects on the sedimentary settings in the Bohai coastal plain by influencing the fluvial process with a series of mechanisms.

KeywordSedimentology Sea-level Tectonic Climate Bohai Basin Late Cenozoic
Indexed BySCIE
Language英语
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10173
Collection黄土与第四纪地质国家重点实验室(2010~)
Corresponding AuthorYao, ZQ (Yao, Zhengquan)[1,2]
Affiliation1.Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;
2.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’An 710075, China;
3.Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;
4.Key Laboratory of Biogeology and Environmental Geology of Ministry of Education, China University of Geosciences, Wuhan 430074, China;
5.Tianjin Institute of Geology and Mineral Resources, Tianjin 300170, China;
6.School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China
Recommended Citation
GB/T 7714
Yao, ZQ ,Guo, ZT ,Xiao, GQ ,et al. Sedimentary history of the western Bohai coastal plain since the late Pliocene: Implications on tectonic, climatic and sea-level changes[J]. JOURNAL OF ASIAN EARTH SCIENCES,2012,54-55:192-202.
APA Yao, ZQ ,Guo, ZT ,Xiao, GQ ,Wang, Q ,Shi, XF ,&Wang, XY .(2012).Sedimentary history of the western Bohai coastal plain since the late Pliocene: Implications on tectonic, climatic and sea-level changes.JOURNAL OF ASIAN EARTH SCIENCES,54-55,192-202.
MLA Yao, ZQ ,et al."Sedimentary history of the western Bohai coastal plain since the late Pliocene: Implications on tectonic, climatic and sea-level changes".JOURNAL OF ASIAN EARTH SCIENCES 54-55(2012):192-202.
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