干旱区生态环境知识资源中心(Arid): Early Paleogene precipitation patterns over East Asia: Was there a monsoon after all?

Arid

DOI	10.1007/s12549-023-00586-y
	Early Paleogene precipitation patterns over East Asia: Was there a monsoon after all?
	Bondarenko, Olesia V.; Utescher, Torsten
通讯作者	Utescher, T
来源期刊	PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS
ISSN	1867-1594
EISSN	1867-1608
出版年	2024
卷号	104 期号:1 页码:1-28
英文摘要	Early Paleogene latitudinal precipitation gradients and patterns along the Pacific coast of Eurasia are studied in time and space using the Coexistence Approach, for the first time applied on an extensive regional palaeobotanical record. The palaeobotanical data used in this reconstruction are compiled from literature resources on 110 reasonably well-dated floras, including terrestrial deposits of 73 sites located in the Far East of Russia, Eastern Siberia, China, and Japan, and covering the early Palaeocene to early Eocene. Our reconstructions of precipitation for the Pacific side of Eurasia in the early Paleogene demonstrate a clear division (especially pronounced in the early Eocene) into two zones at ca. 50 degrees N palaeolatitude on all precipitation parameters. Our results reveal very weak latitudinal precipitation gradients during the early and late Palaeocene. In the early Eocene, the gradient became more clearly pronounced, and a larger arid zone can be distinguished in the mid-latitudes. Our data suggest that in the early Paleogene, the global atmospheric circulation consisted of two well-defined cells, Hadley and Ferrell, while the polar cell was either absent or located over the Arctic Ocean and was very weak. Based on our reconstructions, the records could not be interpreted in terms of a monsoonal type of climate. The regional distribution of hygrophilous and xerophilous taxa in our early Eocene record largely coincides with the reconstructed precipitation pattern and generally corresponds to the distribution of coals and/or oil shales and red beds and/or evaporites, respectively.
英文关键词	Coexistence Approach Spatial precipitation gradient Temporal climatic trends Precipitation seasonality Monsoon Global atmospheric circulation
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001060956700001
WOS类目	Biodiversity Conservation ; Paleontology
WOS研究方向	Biodiversity & Conservation ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405023
推荐引用方式 GB/T 7714	Bondarenko, Olesia V.,Utescher, Torsten. Early Paleogene precipitation patterns over East Asia: Was there a monsoon after all?[J],2024,104(1):1-28.
APA	Bondarenko, Olesia V.,&Utescher, Torsten.(2024).Early Paleogene precipitation patterns over East Asia: Was there a monsoon after all?.PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS,104(1),1-28.
MLA	Bondarenko, Olesia V.,et al."Early Paleogene precipitation patterns over East Asia: Was there a monsoon after all?".PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS 104.1(2024):1-28.