Evolution of East Asian monsoon: Clay mineral evidence in the western Philippine Sea over the past 700 kyr

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	Evolution of East Asian monsoon: Clay mineral evidence in the western Philippine Sea over the past 700 kyr
	Xu, Zhaokai 1; Li, Tiegang1 ; Wan, Shiming 1; Nan, Qingyun 1; Li, Anchun 1; Chang, Fengming 1; Jiang, Fuqing 1; Tang, Zheng 2
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2012-10-22
卷号	60 页码:188-196
关键词	East Asian monsoon Clay minerals Sediment provenance Western Philippine Sea
ISSN号	1367-9120
通讯作者	Li, TG (reprint author), 7 Nanhai Rd, Qingdao 266071, Peoples R China.
英文摘要	Clay mineral assemblage of the core MD06-3047 in the western Philippine Sea has been used to trace sediment provenance and transport process and thus to constrain the East Asian monsoon evolution as well as its forcing mechanism over the past 700 kyr. Clay minerals mainly consist of smectite (61%) and illite (23%), with minor chlorite (10%) and kaolinite (6%). Provenance analyses suggest that the smectite originates predominantly from the alteration of nearby Luzon volcanic rocks. Illite is primarily derived from the Asian continent with eolian origin. Illite contents show strong glacial/interglacial cyclicity as constrained by oxygen isotope stratigraphy. Variations of illite contents are ultimately controlled by the East Asian monsoon evolution, characterized by higher illite values during glacials with relatively stronger East Asian winter monsoon but weaker East Asian summer monsoon. During interglacials, enhanced East Asian summer monsoon and rainfall could produce more smectite with poor crystallinity from Luzon to the study core. Spectral analyses of illite content and smectite crystallinity display a strong periodicity at 100 kyr for the East Asian winter monsoon and 100 kyr, 30 kyr, and 23 kyr periodicities for the East Asian summer monsoon, respectively, suggesting the unique forcing processes of the East Asian winter monsoon from high-latitudes (i.e., ice volume) and the East Asian summer monsoon from both high-latitudes and low-latitudes (i.e., tropical Pacific). (C) 2012 Elsevier Ltd. All rights reserved.
学科主题	Geosciences, Multidisciplinary
收录类别	SCI
原文出处	10.1016/j.jseaes.2012.08.018
语种	英语
WOS记录号	WOS:000313766700013
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/12500]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Minist Land & Resources China, Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zhaokai,Li, Tiegang,Wan, Shiming,et al. Evolution of East Asian monsoon: Clay mineral evidence in the western Philippine Sea over the past 700 kyr[J]. JOURNAL OF ASIAN EARTH SCIENCES,2012,60:188-196.
APA	Xu, Zhaokai.,Li, Tiegang.,Wan, Shiming.,Nan, Qingyun.,Li, Anchun.,...&Tang, Zheng.(2012).Evolution of East Asian monsoon: Clay mineral evidence in the western Philippine Sea over the past 700 kyr.JOURNAL OF ASIAN EARTH SCIENCES,60,188-196.
MLA	Xu, Zhaokai,et al."Evolution of East Asian monsoon: Clay mineral evidence in the western Philippine Sea over the past 700 kyr".JOURNAL OF ASIAN EARTH SCIENCES 60(2012):188-196.