High-Resolution Geochemical Records in the Inner Shelf Mud Wedge of the East China Sea and Their Indication to the Holocene Monsoon Climatic Changes and Events

作     者：WANG Longsheng ZHOU Bin ZHENG Bang WANG Ke MEI Xi WANG Qing WANG Xiaohui ZHENG Hongbo WANG Longsheng;ZHOU Bin;ZHENG Bang;WANG Ke;MEI Xi;WANG Qing;WANG Xiaohui;ZHENG Hongbo

作者机构：Coast Institute of Ludong UniversityYantai 264025China School of Earth Sciences and EngineeringNanjing UniversityNanjing 210023China Key Laboratory of Coastal Environmental Processes and Ecological RemediationYantai Institute of Coastal Zone Research(YIC)Chinese Academy of Sciences(CAS)Yantai 264003China Department of Earth and Planetary ScienceGraduate School of ScienceThe University of TokyoTokyo 1130033Japan Key Laboratory of Gas HydrateMinistry of Natural ResourcesQingdao Institute of Marine GeologyQingdao 266071China Research Center for Earth System ScienceYunnan UniversityKunming 650091China State Key Laboratory of Loess and Quaternary GeologyInstitute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2021年第20卷第6期

页      面：1409-1418页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：the National Natural Science Foundation of China(Nos.41991323,41702185,41977378,U1706220) the National Key Basic Research Program of China(No.2015CB953804) the Na-tural Science Foundation of Shandong Province(No.ZR 2018PD005) the Jiangsu Provincial Basic Research Pro-gram Natural Science Foundation General Project of China(No.BK20171340) the Open Foundation of CAS Key La-boratory of Coastal Environmental Processes and Ecolo-gical Remediation,YICCAS(No.2020KFJJ10) the Open Foundation of State Key Laboratory of Loess and Quater-nary Geology,Institute of Earth Environment,CAS(No.SK LLQG2024) the Laboratory for Marine Geology,Qingdao National Laboratory for Marine Science and Technology(No.MGQNLM-KF201704) the Foundation of School and Land Integration Development in Yantai(No.2021 XDRHXMQT18) 

主　　题：Holocene climatic event East Asian Summer Monsoon XRF core scanning inner shelf mud wedge 

摘      要：The inner shelf mud wedge(ISMW)located in the East China Sea(ECS)is the fine-grained sedimentary area with high sedimentation rate and has provided an ideal study area for understanding the East Asian Summer Monsoon(EASM)evolution during the *** this paper,we presented the high-resolution geochemical data of the sediments from the core MD06-3040 in the ISMW of the ECS determined by X-ray fluorescence core scanning(XRF-CS)analysis,a high-resolution,continuous,and multielement *** and factor analysis results reveal that the variations of elemental compositions(Al,Si,K,Ti,Fe),the elemental ratios of Al/Zr,Ca/Ti and Rb/Sr,and the factor scores(F1 are correlated with the changes of the EASM during the period of 6000–1300 cal yr *** higher values of geochemical compositions indicating the terrigenous inputs implied the intensification of anthropogenic activities after 1300 cal yr ***,the significant decrease of most geochemical compositions and the F1 factor scores during 4500–3500 cal yr BP and 1700–1500 cal yr BP,within the dating errors,coincided with the weak EASM events(presumably drought and cold events).The spectral analysis results of K concentrations,Al/Zr ratios and F1 factor scores show the millennial and centennial climatic fluctuations,which are consistent with other marine sedimentary records in the adjacent *** the findings show that the geochemical compositions of sediments from core MD06-3040 are influenced by the EASM evolution,the variable El Niño/Southern Oscillation(ENSO)and the local oceanic thermohaline circulation(e.g.,Kuroshio Current).These results are greatly helpful in uncovering the forcing mechanism of the monsoonal climate in the east China over the Holocene and also contribute to the understanding of EASM variability.