文献类型：期刊文献

英文题名：A high-resolution sediment record of East Asian summer monsoon from the northern South China Sea spanning the past 7500 years

作者：Huang, Chao[1,2,3];Li, Mingkun[4];Liu, Zhifeng[5];Wei, Gangjian[3];Chen, Fajin[1];Kong, Deming[1];Huang, Xin[1,2];Ye, Feng[5]

机构：[1]Guangdong Ocean Univ, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang 524088, Peoples R China;[2]Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China;[3]Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China;[4]South China Normal Univ, Sch Geog, Guangzhou, Peoples R China;[5]Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou, Peoples R China

年份：2020

卷号：30

期号：12

起止页码：1669

外文期刊名：HOLOCENE

收录：SCI-EXPANDED(收录号：WOS:000562078600001)、、Scopus(收录号：2-s2.0-85089577000)、WOS

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was financially supported by the National Key Research and Development Project of China (2016YFA0601204), Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences (No. MGE2019KG04), Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences (No.OMG2019-10), Guangdong Natural Science Foundation of China (2020A1515010500), Project of Enhancing School with Innovation of Guangdong Ocean University (GDOU230419097), the program for scientific research startup funds of Guangdong Ocean University (R19007) and the Young Scholar of the South China Sea of Guangdong Ocean University (573118019). We thank Dr. Shi Fuxi and Dr. Peng Shasha for their assistance with the particle size measurements and magnetic measurements, respectively. We thank Aaron Stallard for improving the English of the manuscript. The data for this paper are available as the online supplementary dataset and from the corresponding author Wei (gjwei@gig.ac.cn).

语种：英文

外文关键词：East Asian summer monsoon; grain size records; Holocene; magnetic parameters; South China Sea

外文摘要：High-resolution Holocene marine sediment records are limited, which hampers our understanding of paleomonsoon evolution. Continental shelf sediment records are derived mainly from terrestrial weathering products and are thus often sensitive to paleoclimate variations. In this study, the grain size and magnetic mineral composition of a well-dated sediment core (YJ Core) from the northern inner shelf of the South China Sea (SCS) were analyzed to provide a high-resolution record of the Holocene evolution of the East Asian summer monsoon (EASM). These magnetic and grain size records indicate that EASM intensity followed a general declining trend between approximately 6800 and 2000 cal yr BP. This general pattern is synchronous with other geologic archives from monsoon regions, and can be attributed to solar radiation forcing in the Northern Hemisphere. On centennial timescales, a weak EASM closely coincides with periods of weak solar activity. In addition, spectral analysis of clays reveals five prominent cycles, with periodicities of approximately 364, 202, 158, 119, and 104 years, which correspond to solar activity cycles. The similarities between the cyclicities of the Asian monsoon signal in sedimentary records and those of solar activity demonstrate that solar forcing has a relatively large influence on the centennial-scale variability of the EASM.