Astronomical calibration of loess-paleosol deposits at Luochuan, central Chinese Loess Plateau

doi:10.1016/S0031-0182(99)00113-3

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（1985-2004）

	Astronomical calibration of loess-paleosol deposits at Luochuan, central Chinese Loess Plateau
	Lu, HU; Liu, XD; Zhang, FQ; An, ZS; Dodson, J
	1999-11
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
卷号	154 期号:3 页码:237-246
文章类型	Article
摘要	The 140 m loess-paleosol profile at Luochuan in the central Chinese Loess Plateau was sampled at 5-cm intervals in loess units and at 3 cm in paleosol units, in order to obtain a high resolution climatic record covering the past 2.5 million years. All samples were measured for magnetic susceptibility, which is regarded as a good proxy index of the East Asian summer monsoon strength. On the basis of the astronomical theory of Pleistocene climatic change, an age model of the Luochuan loess-paleosol sequence was developed by tuning the magnetic susceptibility record to time-series of insolation changes. The results show that the ages of the boundaries between the Malan and Lishi, and Lishi and Wucheng loess formations are 71 and 1320 kyr BP, respectively. The onset of loess accumulation is at 2470 kyr BP, Our age model was tested by comparing the orbitally derived ages with absolute age determinations of magnetic reversals, and cross-spectrum analyzing with solar radiation variations for summer at 65 degrees N. These indicate that the calibration provides a reliable time scale for the Luochuan loess-paleosol deposit. (C) 1999 Elsevier Science B.V. All rights reserved.
关键词	loess deposits time scale orbital tuning central Chinese Loess Plateau
学科领域	Physical Geography ; Geology ; Paleontology
DOI	10.1016/S0031-0182(99)00113-3
关键词[WOS]	MATUYAMA MAGNETIC REVERSAL ; NORTH-ATLANTIC ; TIME-SCALE ; ICE AGES ; CLIMATE ; RECORD
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000083560400006
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：145[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/11860
专题	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Lu, HU,Liu, XD,Zhang, FQ,et al. Astronomical calibration of loess-paleosol deposits at Luochuan, central Chinese Loess Plateau[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,1999,154(3):237-246.
APA	Lu, HU,Liu, XD,Zhang, FQ,An, ZS,&Dodson, J.(1999).Astronomical calibration of loess-paleosol deposits at Luochuan, central Chinese Loess Plateau.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,154(3),237-246.
MLA	Lu, HU,et al."Astronomical calibration of loess-paleosol deposits at Luochuan, central Chinese Loess Plateau".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 154.3(1999):237-246.