Astronomical calibration of loess-paleosol deposits at Luochuan, central Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Lu, HU; Liu, XD; Zhang, FQ; An, ZS; Dodson, J |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 1999-11 |
| 卷号 | 154期号:3页码:237-246 |
| 关键词 | loess deposits time scale orbital tuning central Chinese Loess Plateau |
| DOI | 10.1016/S0031-0182(99)00113-3 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| 学科主题 | Physical Geography ; Geology ; Paleontology |
| WOS关键词 | MATUYAMA MAGNETIC REVERSAL ; NORTH-ATLANTIC ; TIME-SCALE ; ICE AGES ; CLIMATE ; RECORD |
| WOS研究方向 | Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000083560400006 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [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. |
入库方式： OAI收割
来源：地球环境研究所
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