文献类型：期刊文献

英文题名：Holocene East Asian Summer Monsoon Variation Recorded by Sensitive Grain Size Component from the Pearl River-Derived Mud in the Northern South China Sea

作者：Xu, Jin[1];Huang, Chao[1,2,3,4];Huang, Xin[1,2,3,4]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Lab Coastal Ocean Variat & Disaster Predi, Zhanjiang 524088, Guangdong, Peoples R China;[2]Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China;[3]Guangdong Ocean Univ, Dept Educ Guangdong Prov, Key Lab Climate Resources & Environm Continental, Zhanjiang, Peoples R China;[4]Minist Nat Resources, Key Lab Space Ocean Remote Sensing & Applicat, Beijing, Peoples R China

年份：2022

卷号：2022

外文期刊名：LITHOSPHERE

收录：SCI-EXPANDED(收录号：WOS:000891894100001)、、Scopus(收录号：2-s2.0-105005496792)、WOS

基金：This work was financially supported by the National Natural Science Foundation of China (42001078, 42006065); the Guangdong Natural Science Foundation of China (2020A1515010500); the Young Scholar of the South China Sea of Guangdong Ocean University (573118019); the Open Fund of the State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences (SKLLQG1908); the Innovative Team Project of Guangdong Universities (2019KCXTF021); and the Marine Science Research Team Project of Guangdong Ocean University (002026002004).

语种：英文

外文摘要：To better understand the environmental significance of sediment grain size in continental shelf of the South China Sea (SCS), we carried out a detailed grain size study of sediments from the YJ Core, derived from the mud deposits of the northern SCS. Based on the grain size-standard deviation method, two sensitive grain size components were identified, namely, component 1 (8.2 similar to 9.3 mu m) and component 2 (106.8 similar to 120.7 mu m), respectively. The results indicate that the sensitive component 1 is likely to derive from fine-grained materials of the Pearl River. These fine-grained materials could be transported by the southwestward coastal current during the wet season, with the domination of the East Asian summer monsoon (EASM). Accordingly, the sensitive component 1 could be sensitive to climate change and has a great potential to reconstruct details of EASM variations. During the period of 7500-6800 cal yr BP, the sensitive component 1 may be controlled by both sea level change and EASM intensity. Besides, the curve of the sensitive component 1 in the YJ Core presents a strong EASM during the interval 68003500 cal yr BP and a weak EASM during the period of 3500-2000 cal yr BP, which is synchronous with other paleoclimate records in southern China. In the past 2000 years, the sensitive component 1 may reflect the increasing of human activities. It is essential to carry out more studies with higher resolution in mud areas to clarify a detailed historical evolution of EASM intensity over the whole Holocene.