Magnetochronology of the Oligocene mammalian faunas in the LanzhouBasin, Northwest China
文献类型：期刊论文
| 作者 | Zhang,P(Zhang,Peng)1,7; Ao,H(Ao, Hong)6,7; Dekkers, M.J(Dekkers, Mark J)5; An, ZS(An, Zhisheng)1,7; Wang, LJ(Wang, Lijuan)7; Li,YX(Li, Yongxiang)4; Liu, SH(Liu, Shihang)2,7; Qiang, XK(Qiang,Xiaoke)7; Chang, H(Chang, Hong)7; Zhao, H(Zhao,Hui)3,7 |
| 刊名 | Journal of Asian Earth Sciences
 |
| 出版日期 | 2018-06-15 |
| 卷号 | 159期号:2018页码:24-33 |
| 关键词 | Magnetostratigraphy Lanzhou Basin Land Mammal Fauna Paleoenvironment |
| DOI | 10.1016/j.jseaes.2018.03.021 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The fluvio-lacustrine sequence in the Lanzhou Basin, located at the northeastern margin of the Tibetan Plateau, is a rich source of Oligocene–Miocene mammalian fossils, critical to our understanding of the terrestrial Asian mammal and environmental evolution. While the Miocene mammalian faunas have been dated with magnetostratigraphy, the numerical age of the Oligocene faunas remains controversial. Here, we present new high-resolution magnetostratigraphic records from two fluvio-lacustrine sections in the central Lanzhou Basin, which provide age constraints for two Oligocene mammal assemblages in the Lower Xianshuihe Formation, the Nanpoping and Xiagou Faunas. The Lower Xianshuihe Formation is suggested to span from polarity chrons C12r to C7n, ranging from ca 31 Ma to 24 Ma. The Early Oligocene Nanpoping Fauna correlates to the C12r–C11n.2n polarity chron intervals, yielding an age of ∼31–30 Ma, while the Late Oligocene Xiagou Fauna correlates to chrons C7An–C8n.2n, with an age of ∼26–25 Ma. This magnetostratigraphy provides a more accurate age than biochronology for the Oligocene giant mammal Indricotheriinae contained in the Nanpoping Fauna and sheds new light on the chronology and distribution of Indricotheriinae in Eurasia. The faunas, in particular the Nanpoping Fauna, suggest a mixed setting of woodlands and grasslands associated with a humid environment in the Lanzhou Basin during Early Oligocene, in contrast to its present arid environment with few woodlands. |
| 项目编号 | 2013CB956402 ; 41174057 ; 41290253 ; 41704071 ; SKLLQG1535 |
| 语种 | 英语 |
| 资助机构 | National Basic ResearchProgram of China ; National Basic ResearchProgram of China ; National Natural ScienceFoundation of China ; National Natural ScienceFoundation of China ; Open Grant of the State Key Laboratory of Loess and QuaternaryGeology ; Open Grant of the State Key Laboratory of Loess and QuaternaryGeology |
| 源URL | [http://ir.ieecas.cn/handle/361006/5306]  |
| 专题 | 地球环境研究所_古环境研究室 |
| 通讯作者 | Ao, Hong |
| 作者单位 | 1.Beijing Normal University, Beijing 100875, China 2.University of Chinese Academy of Sciences, Beijing 100049, China 3.Department of Geography, Shaanxi Normal University, Xi'an 710062, China 4.State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi’an 710069, China 5.Paleomagnetic Laboratory ‘Fort Hoofddijk’, Department of Earth Sciences, Faculty of Geosciences, Utrecht University, Budapestlaan 17, 3584 CD Utrecht, TheNetherlands 6.Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA 7.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China |
| 推荐引用方式 GB/T 7714 | Zhang,P,Ao,H,Dekkers, M.J,et al. Magnetochronology of the Oligocene mammalian faunas in the LanzhouBasin, Northwest China[J]. Journal of Asian Earth Sciences,2018,159(2018):24-33. |
| APA | Zhang,P.,Ao,H.,Dekkers, M.J.,An, ZS.,Wang, LJ.,...&Ao, Hong.(2018).Magnetochronology of the Oligocene mammalian faunas in the LanzhouBasin, Northwest China.Journal of Asian Earth Sciences,159(2018),24-33. |
| MLA | Zhang,P,et al."Magnetochronology of the Oligocene mammalian faunas in the LanzhouBasin, Northwest China".Journal of Asian Earth Sciences 159.2018(2018):24-33. |
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。