Iron oxide characteristics of mid-Miocene Red Clay deposits on the western Chinese Loess Plateau and their paleoclimatic implications
文献类型：期刊论文
| 作者 | Qiang, Xiaoke1; Zhao, Hui1,2; Sun, Youbin1 |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2017-02-15 |
| 卷号 | 468期号:2017页码:162-172 |
| 关键词 | Middle Miocene Climate Optimum Red Clay Iron Oxides Paleoclimate |
| DOI | 10.1016/j.palaeo.2016.12.008 |
| 文献子类 | Article |
| 英文摘要 | The middle Miocene climate optimum (MMCO, 14.3-163 Ma) was a warm climatic interval that may provide an analog for future climates in the context of ongoing global warming. In continental regions, however, reconstruction of the MMCO remains controversial due to the lack of robust proxies from continuous sedimentary sequences. In this study, we investigated the composition and relative abundance of pedogenic iron oxides in the Zhuanglang Red Clay deposits from the western Chinese Loess Plateau, using rock magnetic, color reflectance, and geochemical analyses. Our aim was to assess the climatic sensitivity of iron oxides in order to produce robust proxies for reconstructing regional temperature and moisture relationships during the MMCO. Our results indicate that the MMCO in the study region was characterized by high effective precipitation, relatively high temperature and strong pedogenesis, suggesting a strong East Asian summer monsoon (EASM). The strengthening of the EASM intensity during the MMCO is consistent with records of enhanced terrigenous chemical weathering in the South China Sea, and the occurrence of a relatively warm and humid climate on a global scale, implying the strong coupling between Asian monsoon evolution and global climate change during the middle Miocene. In addition, the magnetic susceptibility record of the Zhuanglang Red Clay demonstrates that eccentricity played the dominant role in controlling the EASM during the MMCO. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS关键词 | TEMPERATURE-DEPENDENT SUSCEPTIBILITY ; MAGNETIC-SUSCEPTIBILITY ; TIBETAN PLATEAU ; ENVIRONMENTAL MAGNETISM ; CLIMATIC OPTIMUM ; HOLOCENE LOESS ; CENTRAL-EUROPE ; ASIAN MONSOON ; ICE-SHEET ; RECORD |
| WOS研究方向 | Physical Geography ; Geology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000394919000011 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5512]  |
| 专题 | 地球环境研究所_古环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Peoples R China 2.Shaanxi Normal Univ, Dept Geog, Xian 710062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiang, Xiaoke,Zhao, Hui,Sun, Youbin. Iron oxide characteristics of mid-Miocene Red Clay deposits on the western Chinese Loess Plateau and their paleoclimatic implications[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2017,468(2017):162-172. |
| APA | Qiang, Xiaoke,Zhao, Hui,&Sun, Youbin.(2017).Iron oxide characteristics of mid-Miocene Red Clay deposits on the western Chinese Loess Plateau and their paleoclimatic implications.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,468(2017),162-172. |
| MLA | Qiang, Xiaoke,et al."Iron oxide characteristics of mid-Miocene Red Clay deposits on the western Chinese Loess Plateau and their paleoclimatic implications".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 468.2017(2017):162-172. |
入库方式： OAI收割
来源：地球环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。