文献类型：期刊文献

英文题名：Solar-forcing-induced spatial synchronisation of the East Asian summer monsoon on centennial timescales

作者：Huang, Chao[1,2];Zeng, Ti[3];Ye, Feng[3];Wei, Gangjian[1]

机构：[1]Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Coll Ocean & Meteorol, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang 524088, Peoples R China;[3]Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510640, Guangdong, Peoples R China

年份：2019

卷号：514

起止页码：536

外文期刊名：PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY

收录：SCI-EXPANDED(收录号：WOS:000456355800040)、、Scopus(收录号：2-s2.0-85056764738)、WOS

基金：The authors thank Dr. Tu Xianglin of the State Key Laboratory of Isotope Geochemistry, GIG-CAS, for his assistance with the ICP-MS measurements and to Aaron Stallard for improving the English of the manuscript. We thank Professor Chu Guoqiang for sharing the compound-specific delta¹³C27-31 value data from Xiaolongwan Lake. This work was financially supported by the National Key Research and Development Project of China (2016YFA0601204), the National Natural Science Foundation of China (41325012), the Guangzhou Science, Technology and Innovation Commission (201607020008), the GIGCAS 135 project (135PY201605), and the Guangzhou Institute of Geochemistry (GIG-GNKF-201501). This work is contribution No.IS-2601 from GIG-CAS. The data for this paper are available as the online supporting dataset.

语种：英文

外文关键词：East Asian summer monsoon; South China Sea; Terrigenous matter; Holocene; Chemical weathering; Marine sediment

外文摘要：Spatial patterns in centennial-scale variations of the East Asian summer monsoon (EASM) during the Holocene are poorly constrained due to the lack of high-resolution records with detailed chronologies, especially in southern China. Here we present high-resolution (similar to 35-yr) proxy records spanning the last 7500 years from a well-dated sediment core (YJ Core) from the northern inner shelf of the South China Sea. Al, Ti and Fe variations were employed as indicators of terrigenous influx and K/Al ratios were used as a tracer of chemical weathering to document variations in the intensity of the EASM. The results show a series of centennial-scale weak EASM events, which are generally synchronous with those inferred from other geologic archives from monsoonal regions in the eastern and southern China. Moreover, these events are synchronous with periods of weak solar activity, and the spectral analysis demonstrates that the EASM and solar activity share some general cyclicity patterns. We therefore suggest that solar activity is a fundamental driving force for the spatial synchronisation of the EASM on centennial timescales across the monsoon region.