RESCALED RANGE ANALYSIS OF PALEOCLIMATIC PROXIES

doi:10.1139/e92-026

	RESCALED RANGE ANALYSIS OF PALEOCLIMATIC PROXIES
	WANG, Y ; EVANS, ME ; XU, TC ; RUTTER, N ; DING, Z ; LIU, XM
刊名	CANADIAN JOURNAL OF EARTH SCIENCES
	1992-02-01
卷号	29 期号:2 页码:296-300
ISSN号	0008-4077
DOI	10.1139/e92-026
文献子类	Note
英文摘要	Two geophysical measurements have been widely used as paleoclimatic indicators: oxygen-isotope ratios from deep-sea cores and magnetic susceptibility of loess sediments. Both types of record have been shown to possess climatic information, as they share the same dominant frequencies of the Earth's orbital movements, which, according to Milankovitch's theory, drive the climatic system. But these two physical quantities may respond to climatic variations in different ways. Consequently, they may possess different long-term characteristics, which can be detected by the technique of rescaled range (R/S) analysis. Here we report results from four sets of data: two oxygen-isotope records and two loess susceptibility profiles. Analysis indicates that Hurst exponents of about 0.8 are typical for deep-sea oxygen data, whereas values of about 0.9 characterize loess susceptibility sequences. If Mandelbrot's explanation is taken, these distinct values imply that the loess data are more self-correlated and possess stronger persistence compared with the deep-sea records. This may reflect differences in the ways in which these proxy recorders respond to climatic variations, or differences between continental and oceanic climates.
WOS关键词	MAGNETIC-SUSCEPTIBILITY ; LOESS DEPOSITS ; CHINA ; CLIMATE
WOS研究方向	Geology
语种	英语
出版者	CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
WOS记录号	WOS:A1992HP35700007
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/74866]
专题	中国科学院地质与地球物理研究所
通讯作者	WANG, Y
作者单位	1.UNIV ALBERTA, DEPT GEOL, EDMONTON T6G 2E3, ALBERTA, CANADA 2.CHINESE ACAD SCI, INST GEOL, BEIJING, PEOPLES R CHINA
推荐引用方式 GB/T 7714	WANG, Y,EVANS, ME,XU, TC,et al. RESCALED RANGE ANALYSIS OF PALEOCLIMATIC PROXIES[J]. CANADIAN JOURNAL OF EARTH SCIENCES,1992,29(2):296-300.
APA	WANG, Y,EVANS, ME,XU, TC,RUTTER, N,DING, Z,&LIU, XM.(1992).RESCALED RANGE ANALYSIS OF PALEOCLIMATIC PROXIES.CANADIAN JOURNAL OF EARTH SCIENCES,29(2),296-300.
MLA	WANG, Y,et al."RESCALED RANGE ANALYSIS OF PALEOCLIMATIC PROXIES".CANADIAN JOURNAL OF EARTH SCIENCES 29.2(1992):296-300.