气候变化领域集成服务门户(CCPortal): Magnetostratigraphic constraints on the age of the Hipparion fauna in the Linxia Basin of China, and its implications for stepwise aridification

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DOI	10.1016/j.palaeo.2019.109413
	Magnetostratigraphic constraints on the age of the Hipparion fauna in the Linxia Basin of China, and its implications for stepwise aridification
	Zhang, Weilin; Fang, Xiaomin; Song, Chunhui; Yan, Maodu; Wang, Jiuyi; Zhang, Zhigao; Wu, Fuli; Zan, Jinbo; Zhang, Tao; Yang, Yibo; Tan, Mengqi
通讯作者	Zhang, WL (通讯作者)
发表日期	2020
ISSN	0031-0182
EISSN	1872-616X
卷号	537
英文摘要	Late Cenozoic sediments in the Linxia Basin of China, on the northeastern Tibetan Plateau, bear abundant fossils of the Hipparion fauna. From late Miocene times, these sections record a history of aridification in the Asian Interior, the evolution of the east Asian monsoon, and multiple uplifts of the Tibetan Plateau. In this paper, a new detailed magnetostratigraphic study of a sedimentary sequence from the Duikang (DK) section containing the Hipparion fauna is presented, to better understand interconnected ecologic and environmental changes. The 90-m-thick section reveals nine normal and nine reversed zones that span from chron. C5n.2n to chron. C3Ar or from chron. C4n.2n to chron. C2Ar, yielding magnetostratigraphic ages of similar to 8.1 Ma - 3.7 Ma for the studied section and 5.3 Ma for the Hipparion fauna-bearing bed. Combined with all the previous magnetostratigraphic ages of the fauna-bearing sediments in the Linxia Basin, Hipparion can be distinguished as mainly having lived during five periods: Phase I (11.5 Ma), Phase II (8.2 Ma), Phase III (6.3 Ma), Phase IV (similar to 5.3 Ma) and Phase V (2.5 Ma). Based on comparison of climate records in the Linxia Basin with aridification records from surrounding regions and global cooling during the late Cenozoic, we suggest that the evolution of Hipparion from the Linxia Basin was mainly driven by continuous global cooling and tectonic uplift of the northeastern Tibetan Plateau since the late Miocene.
关键词	NORTHEASTERN TIBETAN PLATEAU CENOZOIC MAGNETOSTRATIGRAPHY LOESS DEPOSITS CLIMATE-CHANGE MIOCENE MA EVOLUTION RECORD PLIOCENE UPLIFT
英文关键词	Magnetostratigraphy; Hipparion; Late miocene; Aridification; Linxia basin
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000504778600012
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259909
推荐引用方式 GB/T 7714	Zhang, Weilin,Fang, Xiaomin,Song, Chunhui,et al. Magnetostratigraphic constraints on the age of the Hipparion fauna in the Linxia Basin of China, and its implications for stepwise aridification[J]. 中国科学院青藏高原研究所,2020,537.
APA	Zhang, Weilin.,Fang, Xiaomin.,Song, Chunhui.,Yan, Maodu.,Wang, Jiuyi.,...&Tan, Mengqi.(2020).Magnetostratigraphic constraints on the age of the Hipparion fauna in the Linxia Basin of China, and its implications for stepwise aridification.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,537.
MLA	Zhang, Weilin,et al."Magnetostratigraphic constraints on the age of the Hipparion fauna in the Linxia Basin of China, and its implications for stepwise aridification".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 537(2020).