Comparison of particle size characteristics of the Tertiary 'red clay' and Pleistocene loess in the Chinese Loess Plateau: implications for origin and sources of the 'red clay'
文献类型：期刊论文
| 作者 | Yang, SL; Ding, ZL |
| 刊名 | SEDIMENTOLOGY
 |
| 出版日期 | 2004-02-01 |
| 卷号 | 51期号:1页码:77-93 |
| 关键词 | aeolian deposits Chinese loess grain size kurtosis red clay skewness |
| ISSN号 | 0037-0746 |
| DOI | 10.1046/j.1365-3091.2003.00612.x |
| 文献子类 | Article |
| 英文摘要 | The origin of the Tertiary 'red clay' underlying the Pleistocene loess in the Chinese Loess Plateau remains controversial, although several lines of evidence have suggested a wind-blown origin. This study examines the particle-size parameters of the late Miocene and Pliocene 'red clay' by comparing it with those of the late Pleistocene loess. The particle-size distribution of a total of 15 339 loess and 6394 'red clay' samples taken from 12 loess sections along a north-south transect and two 'red clay' sequences at Lingtai and Jingchuan was systematically analysed. The median grain size, skewness and kurtosis of the late Pleistocene loess all show a systematic southward change and are principally influenced by distance from source region. The spatial and temporal differentiation of dust deposits is expressed in a skewness-kurtosis-median grain size ternary diagram, from which the distance to the source region can be inferred. The particle-size characteristics of the Tertiary 'red clay' sediments are very similar to those of the palaeosols within the late Pleistocene loess deposits, suggesting an aeolian origin for the 'red clay'. Based on the comparison of 'red clay' and loess in the ternary diagrams, it is inferred that the source-sink distance was greater in the Neogene than in the last and penultimate interglacials, and that the dust source region in north-western China underwent a progressive expansion during the period from at least 7.0 Ma to the present. |
| WOS关键词 | NORTH-CENTRAL CHINA ; GANSU PROVINCE ; GRAIN-SIZE ; MAGNETIC-SUSCEPTIBILITY ; PALEOSOL SEQUENCE ; MAGNETOSTRATIGRAPHY ; DEPOSITS ; MA ; XIFENG ; DUST |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000189022900005 |
| 出版者 | BLACKWELL PUBLISHING LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79645]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yang, SL |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, SL,Ding, ZL. Comparison of particle size characteristics of the Tertiary 'red clay' and Pleistocene loess in the Chinese Loess Plateau: implications for origin and sources of the 'red clay'[J]. SEDIMENTOLOGY,2004,51(1):77-93. |
| APA | Yang, SL,&Ding, ZL.(2004).Comparison of particle size characteristics of the Tertiary 'red clay' and Pleistocene loess in the Chinese Loess Plateau: implications for origin and sources of the 'red clay'.SEDIMENTOLOGY,51(1),77-93. |
| MLA | Yang, SL,et al."Comparison of particle size characteristics of the Tertiary 'red clay' and Pleistocene loess in the Chinese Loess Plateau: implications for origin and sources of the 'red clay'".SEDIMENTOLOGY 51.1(2004):77-93. |
入库方式： OAI收割
来源：地质与地球物理研究所
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