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Evolution of East Asian monsoon: Clay mineral evidence in the western Philippine Sea over the past 700 kyr
Xu, Zhaokai1; Li, Tiegang1; Wan, Shiming1; Nan, Qingyun1; Li, Anchun1; Chang, Fengming1; Jiang, Fuqing1; Tang, Zheng2; Li, TG (reprint author), 7 Nanhai Rd, Qingdao 266071, Peoples R China.
2012-10-22
发表期刊JOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
卷号60页码:188-196
文章类型Article
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.
关键词East Asian Monsoon Clay Minerals Sediment Provenance Western Philippine Sea
学科领域Geosciences, Multidisciplinary
DOI10.1016/j.jseaes.2012.08.018
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收录类别SCI
语种英语
WOS记录号WOS:000313766700013
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被引频次:34[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/12500
专题海洋地质与环境重点实验室
通讯作者Li, TG (reprint author), 7 Nanhai Rd, Qingdao 266071, Peoples R China.
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
第一作者单位中国科学院海洋研究所
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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.,...&Li, TG .(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.
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