Sedimentary Evolution and Transgressions of the Western Subei Basin in Eastern China since the Late Pliocene
Sedimentary Evolution and Transgressions of the Western Subei Basin in Eastern China since the Late Pliocene
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中国东部苏北盆地西部晚上新世以来沉积演化与海侵
DOI:
10.1111/1755-6724.13774
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发表时间:
2019-02
期刊:
影响因子:
--
通讯作者:
LIN Jingxing
中科院分区:
文献类型:
--
作者:
CHENG Yu;LI Xiangqian;SHU Junwu;BAI Shibiao;ZHAO Zengyu;ZHANG Xiangyun;GUO Gang;ZHANG Ping;LIN Jingxing
Sedimentary sequences in the Subei Basin are complex and have been affected by interactions between the ocean and rivers since the Late Pliocene, including the Yellow River, Huaihe River, and the Yangtze River. This sedimentary evolution, in particular the timing of Pleistocene transgressions, has long been a matter of controversy owing to the lack of precise chronological evidence. The aim of this study is to explore the evolution of the sedimentary environment throughout the past 3.00 Ma in this region on the basis of a comprehensive analysis of particle size and foraminifera and ostracods collected in the TZK9 core from the Subei Basin combined with geochronological studies of magnetostratigraphy, AMS14C and optically stimulated luminescence (OSL). The results show that fluvial facies in the sedimentary environment from 3.00 to 1.01 Ma. There were fluvial facies and reflects six sea‐level high stands from 1.01 to 0.25 Ma. The study area was affected by four large‐scale transgressions since 0.25 Ma. The four marine sedimentary layers known as DU7 (buried at 48–52 m), DU5 (buried at 35–41 m), DU3 (buried at 16–23 m), and DU1 (buried at 2–4 m) are recorded in the MIS7 (210–250 ka), MIS5, MIS3, and Holocene, respectively. The magnitude of the DU5 transgression was identical to that of the DU3 transgression, both were larger than the DU7 transgression, and the DU1 transgression was the weakest. The variation of transgression strength reflects the influence of global changes in sea level, tectonic subsidence, shell ridges, and sand dams. In the TZK9 core, we found evidence of seven sea‐level high stands from the Early–Middle Pleistocene, and the first one caused by regional rapid subsidence and could be traced back to 0.83‐0.84 Ma. The sea‐level high stands and the age of the first one recorded above was different from other cores in eastern China, this was caused by the lack of absolute age control and the differences in paleotopography during this period. This study reconstructs sedimentary evolution, determines the transgression and its age, establishes the chronology since the Late Pliocene, and provides a scientific framework for further paleoenvironmental and tectonic studies. The results of this study highlight the important role that local tectonics and global sea level play in the sedimentary evolution and transgressions that have occurred in the western Subei Basin.
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影响因子:
1.4
作者:
Wang Qian;L. Fenglin;Liu Yude;Gao Xiulin
通讯作者:
Wang Qian;L. Fenglin;Liu Yude;Gao Xiulin
DOI:
--
发表时间:
2004
期刊:
Marine Geology & Quaternary Geology
影响因子:
--
作者:
Wang Zhang-hua;M. Key
通讯作者:
Wang Zhang-hua;M. Key
DOI:
10.1111/1755-6724.13319
发表时间:
2017-06
期刊:
Acta Geologica Sinica ‐ English Edition
影响因子:
--
作者:
Yumao Pang;Xun-hua Zhang;Guolin Xiao;Xing-Wei Guo;Zhenhe Wen;Zhiqiang Wu;Xiaoqing Zhu
通讯作者:
Yumao Pang;Xun-hua Zhang;Guolin Xiao;Xing-Wei Guo;Zhenhe Wen;Zhiqiang Wu;Xiaoqing Zhu
DOI:
10.1016/j.palaeo.2015.11.018
发表时间:
2016-01
期刊:
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子:
--
作者:
Mei Xi;Li Rihui;Zhang Xunhua;Liu Qingsong;Liu Jianxing;Wang Zhongbo;Lan Xianhong;Liu Jian;Sun Rongtao
通讯作者:
Sun Rongtao
影响因子:
2.3
作者:
Jones, Brian G.;Chen, Ting;Zhao, Baocheng;Zhan, Qing
通讯作者:
Zhan, Qing