气候变化领域集成服务门户(CCPortal): Global warming drove the Mid-Miocene climate humidification in the northern Tibetan Plateau

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DOI	10.1016/j.gloplacha.2023.104135
	Global warming drove the Mid-Miocene climate humidification in the northern Tibetan Plateau
	Khan, Ahsan Ali; Zan, Jinbo; Fang, Xiaomin; Zhang, Weilin; Jadoon, Umar Farooq
发表日期	2023
ISSN	0921-8181
EISSN	1872-6364
卷号	226
英文摘要	The Miocene is a key transitional period for the Asian monsoon evolution and establishment of modern-like geomorphic landscapes in the northern Tibetan Plateau. Elucidating the Miocene paleoenvironmental changes and their relationships with climate and tectonics are significant in understanding future hydrological changes in the northern Tibet under a warming climate. In this study, detailed lithological and rock magnetic investigations were conducted on a Miocene fluvial-lacustrine sediment sequence from the Linxia Basin in Northeast Tibet, to understand the paleoenvironmental and palaeohydrological response to the tectonics and global climatic change, especially to the effects of the Middle Miocene Climatic optimum (MMCO). The results demonstrated that strong waterlogged reducing environments during MMCO precluded the occurrences of pedogenesis in the Linxia Basin owing to highly humid climates. As the precipitation decreased significantly before and after MMCO, pedo-genesis occurred increasingly owing to temperate and well-drained conditions. A synthesis of the lithological and magnetic variations in Miocene fluvial-lacustrine sediments further indicated that climate humidification pre-vailed in most areas of the northern Tibetan Plateau during MMCO. These observations demonstrate that global climate change, rather than the tectonic uplift, significantly influenced the Mid-Miocene paleoenvironmental evolution in northern Tibet.
关键词	Global warming MMCO Climate humidification Environmental magnetism Northern Tibetan Plateau
英文关键词	XINING BASIN; SEDIMENTARY ARCHIVE; RAPID UPLIFT; QILIAN SHAN; 20 MA; EVOLUTION; RECORD; MAGNETISM; MAGNETOSTRATIGRAPHY; COMPONENTS
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001008775200001
来源期刊	GLOBAL AND PLANETARY CHANGE
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/283562
作者单位	Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Peking University; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS
推荐引用方式 GB/T 7714	Khan, Ahsan Ali,Zan, Jinbo,Fang, Xiaomin,et al. Global warming drove the Mid-Miocene climate humidification in the northern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2023,226.
APA	Khan, Ahsan Ali,Zan, Jinbo,Fang, Xiaomin,Zhang, Weilin,&Jadoon, Umar Farooq.(2023).Global warming drove the Mid-Miocene climate humidification in the northern Tibetan Plateau.GLOBAL AND PLANETARY CHANGE,226.
MLA	Khan, Ahsan Ali,et al."Global warming drove the Mid-Miocene climate humidification in the northern Tibetan Plateau".GLOBAL AND PLANETARY CHANGE 226(2023).