High-resolution scanning XRF investigation of Chinese loess and its implications for millennial-scale monsoon variability

doi:10.1002/jqs.2856

	High-resolution scanning XRF investigation of Chinese loess and its implications for millennial-scale monsoon variability
	Liang, Lianji 2; Bloemendal, Jan 1; Liu, Yanguang 5; Yao, Zhengquan 5; Wu, Feng 4; Li, Ying 4; Sun, Youbin 3,4
刊名	JOURNAL OF QUATERNARY SCIENCE
	2016-04-01
卷号	31 期号:3 页码:191-202
关键词	Chinese Loess East Asian Monsoon Elemental Ratios Millennial Variability Monsoon Dynamics
DOI	10.1002/jqs.2856
文献子类	Article
英文摘要	Millennial-scale monsoon variability has been investigated intensively using loess-based proxies; however, the amplitude and rhythms of millennial-scale signals have seldom been disentangled from the background glacial-interglacial changes. Here we present the results of high-resolution scanning X-ray fluorescence analysis of a 75-m-thick loess sequence from the north-western Chinese Loess Plateau to address glacial-interglacial to millennial monsoon variability over the last two climatic cycles. Variations of the Si/K, Fe/K and Ca/K ratios are separated spectrally into low-and high-frequency components corresponding to glacial-interglacial and millennial-scale monsoon variability, respectively. The results indicate that the three elemental ratios exhibit similar glacial-interglacial variability but with varying spectral densities at the 100-, 41- and 23-kyr periodicities. Millennial-scale variability is quite similar between the three elemental ratios, and comparable to those inferred from records of Chinese speleothem delta O-18, Greenland palaeotemperature and North Atlantic cooling events. Comparison of various proxies indicates the broad similar magnitudes of abrupt climate changes, at least during the last two glacial-interglacial cycles, whereas the timing and amplitude of abrupt climatic events are not well correlated. We suggest that refinement of loess chronology and intensive data-model integration in the future are critical to decipher the characteristics and dynamics of rapid monsoon changes. Copyright (c) 2016 John Wiley & Sons, Ltd.
WOS关键词	EAST-ASIAN MONSOON ; PAST 800,000 YEARS ; NORTH-ATLANTIC ; CLIMATE VARIABILITY ; SUMMER MONSOON ; GRAIN-SIZE ; ICE-VOLUME ; MAGNETIC-SUSCEPTIBILITY ; ANTARCTIC CLIMATE ; LAST GLACIATION
WOS研究方向	Physical Geography ; Geology
语种	英语
WOS记录号	WOS:000378134000003
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5725]
专题	地球环境研究所_古环境研究室
作者单位	1.Univ Liverpool, Dept Geog & Planning, Liverpool L69 3BX, Merseyside, England 2.Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China 3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Liang, Lianji,Bloemendal, Jan,Liu, Yanguang,et al. High-resolution scanning XRF investigation of Chinese loess and its implications for millennial-scale monsoon variability[J]. JOURNAL OF QUATERNARY SCIENCE,2016,31(3):191-202.
APA	Liang, Lianji.,Bloemendal, Jan.,Liu, Yanguang.,Yao, Zhengquan.,Wu, Feng.,...&Sun, Youbin.(2016).High-resolution scanning XRF investigation of Chinese loess and its implications for millennial-scale monsoon variability.JOURNAL OF QUATERNARY SCIENCE,31(3),191-202.
MLA	Liang, Lianji,et al."High-resolution scanning XRF investigation of Chinese loess and its implications for millennial-scale monsoon variability".JOURNAL OF QUATERNARY SCIENCE 31.3(2016):191-202.