Different orbital rhythms in the Asian summer monsoon records from North and South China during the Pleistocene

doi:10.1016/j.gloplacha.2011.09.012

	Different orbital rhythms in the Asian summer monsoon records from North and South China during the Pleistocene
	Ao, Hong 1,2; Dekkers, Mark J.3; Xiao, Guoqiao 4; Yang, Xiaoqiang 5; Qin, Li 6; Liu, Xiaodong 1; Qiang, Xiaoke 1; Chang, Hong 1; Zhao, Hui 1
刊名	GLOBAL AND PLANETARY CHANGE
	2012
卷号	80-81 页码:51-60
关键词	Asian summer monsoon North China South China solar insolation glacial-interglacial cycles Pleistocene
ISSN号	0921-8181
DOI	10.1016/j.gloplacha.2011.09.012
文献子类	Article
英文摘要	Here we construct a Pleistocene astronomical timescale for the Nihewan fluvio-lacustrine sediments (North China), via tuning a stacked summer monsoon index generated from grain size and low-field magnetic susceptibility records to orbital obliquity and precession. Combining the summer monsoon records retrieved from the Nihewan and the Chinese loess deposits in North China on the one hand, and those from the stalagmites and the marine deposits in South China on the other, the Asian summer monsoon records from North and South China appear to show different orbital rhythms during the Pleistocene. The monsoon records from both the Nihewan Basin and Chinese Loess Plateau are equally characterized by dominant obliquity (41 kyr) before similar to 0.9 Ma and dominant eccentricity (100 kyr) after this time, closely following the marine delta O-18 record. In contrast, the delta O-18 record of stalagmites from South China (Wang et al., 2001, 2008b: Cheng et al., 2009) and the iron oxide proxy record from the South China Sea (Zhang et al., 2007, 2009: Ao et al., 2011), which are considered as a proxy indicator of the Asian summer monsoon intensity in South China, reveal a dominant cyclicity of precession (23 kyr) over the past 1.8 Myr, closely following the solar insolation curve instead. We further present a possible interpretation of the different orbital rhythms in the Asian summer monsoon records from North and South China. The orbital rhythm in the summer monsoon records from North China is mainly modulated by the migration of the Asian summer monsoon due to changes in sea level and Northern Hemisphere ice volume during glacial-interglacial cycles. Strong summer monsoon may have reached North China mainly during interglacial periods. During glacial periods when the sea level was low and Northern Hemisphere ice volume was large, the southeasterly migration of summer monsoon would make North China beyond the reach of the summer monsoon. Thus the summer monsoon records from North China primarily show a cyclic oscillation similar to the glacial-interglacial climate cycles as indicated by cycle-by-cycle correlation between monsoon and marine oxygen isotope records. However, the summer monsoon always prevailed over South China during both glacial and interglacial periods. Therefore. the orbital-scale variability of the summer monsoon in South China shows a direct response to the orbital variations in the low-latitude summer insolation, without significant influence from the migration of monsoon during glacial-interglacial cycles. (C) 2011 Elsevier BM. All rights reserved.
WOS关键词	POLARITY TIME-SCALE ; HEMISPHERE ICE SHEETS ; NIHEWAN BASIN ; ASTRONOMICAL CALIBRATION ; DELTA-O-18 RECORD ; LOESS PLATEAU ; CONTINENTAL SEQUENCES ; LACUSTRINE SEDIMENTS ; GRAIN-SIZE ; CLIMATE
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000299606600005
资助机构	Key Projects of National Basic Research Program of China(2010CB833400) ; Key Projects of National Basic Research Program of China(2010CB833400) ; National Natural Science Foundation of China(41174057 ; National Natural Science Foundation of China(41174057 ; West Light Foundation of Chinese Academy of Sciences ; West Light Foundation of Chinese Academy of Sciences ; 41072142 ; 41072142 ; 41075067) ; 41075067) ; Key Projects of National Basic Research Program of China(2010CB833400) ; Key Projects of National Basic Research Program of China(2010CB833400) ; National Natural Science Foundation of China(41174057 ; National Natural Science Foundation of China(41174057 ; West Light Foundation of Chinese Academy of Sciences ; West Light Foundation of Chinese Academy of Sciences ; 41072142 ; 41072142 ; 41075067) ; 41075067) ; Key Projects of National Basic Research Program of China(2010CB833400) ; Key Projects of National Basic Research Program of China(2010CB833400) ; National Natural Science Foundation of China(41174057 ; National Natural Science Foundation of China(41174057 ; West Light Foundation of Chinese Academy of Sciences ; West Light Foundation of Chinese Academy of Sciences ; 41072142 ; 41072142 ; 41075067) ; 41075067) ; Key Projects of National Basic Research Program of China(2010CB833400) ; Key Projects of National Basic Research Program of China(2010CB833400) ; National Natural Science Foundation of China(41174057 ; National Natural Science Foundation of China(41174057 ; West Light Foundation of Chinese Academy of Sciences ; West Light Foundation of Chinese Academy of Sciences ; 41072142 ; 41072142 ; 41075067) ; 41075067)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84578]
专题	中国科学院地质与地球物理研究所
通讯作者	Ao, Hong
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Paleomagnetism & Geochronol Lab SKL LE, Beijing 100029, Peoples R China 3.Univ Utrecht, Fac Geosci, Dept Earth Sci, Paleomagnet Lab Ft Hoofddijk, NL-3584 CD Utrecht, Netherlands 4.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 5.Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Guangdong, Peoples R China 6.China Three Gorges Museum, Chongqing Three Gorges Inst Paleoanthropol, Chongqing 400015, Peoples R China
推荐引用方式 GB/T 7714	Ao, Hong,Dekkers, Mark J.,Xiao, Guoqiao,et al. Different orbital rhythms in the Asian summer monsoon records from North and South China during the Pleistocene[J]. GLOBAL AND PLANETARY CHANGE,2012,80-81:51-60.
APA	Ao, Hong.,Dekkers, Mark J..,Xiao, Guoqiao.,Yang, Xiaoqiang.,Qin, Li.,...&Zhao, Hui.(2012).Different orbital rhythms in the Asian summer monsoon records from North and South China during the Pleistocene.GLOBAL AND PLANETARY CHANGE,80-81,51-60.
MLA	Ao, Hong,et al."Different orbital rhythms in the Asian summer monsoon records from North and South China during the Pleistocene".GLOBAL AND PLANETARY CHANGE 80-81(2012):51-60.