Impacts of post-depositional processes on rapid monsoon signals recorded by the last glacial loess deposits of northern China

doi:10.1016/j.epsl.2009.10.038

	Impacts of post-depositional processes on rapid monsoon signals recorded by the last glacial loess deposits of northern China
	Sun, Youbin 1; Wang, Xulong 1; Liu, Qingsong 2; Clemens, Steven C.3
刊名	EARTH AND PLANETARY SCIENCE LETTERS
	2010-01-15
卷号	289 期号:1-2 页码:171-179
关键词	Chinese Loess Osl Dating Surface Mixing Pedogenesis Rapid Monsoon Change
ISSN号	0012-821X
DOI	10.1016/j.epsl.2009.10.038
文献子类	Article
英文摘要	Rapid East Asian Monsoon oscillations recorded by Chinese loess are thought to be dynamically linked to north Atlantic climate. However, few efforts have been made to assess the effects of post-depositional processes (e.g., surface mixing and pedogenesis) on loess paleoclimatic records. Here a detailed optically stimulated luminescence dating of a thick loess sequence from the western Loess Plateau is presented, offering a reliable chronology for last glacial deposits. Magnetic susceptibility and mean grain size records from three loess-paleosol sequences along a northwest-southeast transect are investigated to evaluate impacts of post-depositional processes on these loess-based proxy records. Our results indicate that: (I) loess sequences developed within the flat tableland of the central and western Loess Plateau are nearly continuous during the last glaciation; and (2) post-depositional processes have distinct impacts on rapid monsoon signals recorded in loess sequences from different regions. In the central Loess Plateau, rapid monsoon signals have been attenuated to various degrees depending on the sedimentation rate and pedogenic intensity. In the northwestern Loess Plateau, however, due to high sedimentation rate and relatively weak pedogenesis, high-resolution grain size oscillations reliably record rapid monsoon changes and can be well correlated to rapid climate changes recorded in the Greenland ice core and Hulu cave stalagmite. (C) 2009 Elsevier B.V. All rights reserved.
WOS关键词	EAST-ASIAN MONSOON ; MAGNETIC-SUSCEPTIBILITY ; CLIMATE RECORDS ; GRAIN-SIZE ; MILLENNIAL-SCALE ; PLATEAU ; ICE ; PALEOMONSOON ; PLEISTOCENE ; VARIABILITY
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000274178000017
资助机构	Chinese Academy of Sciences ; Chinese Academy of Sciences ; Natural Science Foundation of China(40772117 ; Natural Science Foundation of China(40772117 ; Marie-Curie Fellowship ; Marie-Curie Fellowship ; 40602020 ; 40602020 ; 40974036 ; 40974036 ; 40821091) ; 40821091) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Natural Science Foundation of China(40772117 ; Natural Science Foundation of China(40772117 ; Marie-Curie Fellowship ; Marie-Curie Fellowship ; 40602020 ; 40602020 ; 40974036 ; 40974036 ; 40821091) ; 40821091) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Natural Science Foundation of China(40772117 ; Natural Science Foundation of China(40772117 ; Marie-Curie Fellowship ; Marie-Curie Fellowship ; 40602020 ; 40602020 ; 40974036 ; 40974036 ; 40821091) ; 40821091) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Natural Science Foundation of China(40772117 ; Natural Science Foundation of China(40772117 ; Marie-Curie Fellowship ; Marie-Curie Fellowship ; 40602020 ; 40602020 ; 40974036 ; 40974036 ; 40821091) ; 40821091)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/72794]
专题	中国科学院地质与地球物理研究所
通讯作者	Sun, Youbin
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Peoples R China 2.Chinese Acad Sci, Paleomagnetism & Geochronol Lab SKL LE, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Brown Univ, Dept Geol, Providence, RI 02912 USA
推荐引用方式 GB/T 7714	Sun, Youbin,Wang, Xulong,Liu, Qingsong,et al. Impacts of post-depositional processes on rapid monsoon signals recorded by the last glacial loess deposits of northern China[J]. EARTH AND PLANETARY SCIENCE LETTERS,2010,289(1-2):171-179.
APA	Sun, Youbin,Wang, Xulong,Liu, Qingsong,&Clemens, Steven C..(2010).Impacts of post-depositional processes on rapid monsoon signals recorded by the last glacial loess deposits of northern China.EARTH AND PLANETARY SCIENCE LETTERS,289(1-2),171-179.
MLA	Sun, Youbin,et al."Impacts of post-depositional processes on rapid monsoon signals recorded by the last glacial loess deposits of northern China".EARTH AND PLANETARY SCIENCE LETTERS 289.1-2(2010):171-179.