干旱区生态环境知识资源中心(Arid): Characterization of geochemical elements in surface sediments from Chinese deserts

Arid

DOI	10.1016/j.catena.2022.106637
	Characterization of geochemical elements in surface sediments from Chinese deserts
	Wei, Guoru; Zhang, Chunlai; Li, Qing; Wang, Hongtao; Wang, Rende; Zhang, Yajing; Yuan, Yixiao
通讯作者	Zhang, CL
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2023
卷号	220
英文摘要	Northern China has 12 main deserts that range from extremely arid regions in the west to semi-arid or semihumid regions in the east. Based on their geographical locations, we divided these deserts into western, central, and eastern deserts. We investigated the geochemical elements in their surface sediments and found that the concentration of the major element SiO2 gradually increased from west to east, whereas the other major elements tended to decrease; however, the CaO concentration was unusually high in the Taklimakan and Qaidam Basin deserts. The spatial distribution of geochemical elements was more homogeneous in the western and central deserts than in the eastern. Unlike the eastern deserts, the western and central deserts show greater physical than chemical weathering and lower mineral maturity due to the extremely low precipitation and a continuous supply of younger materials. Most major trace elements in the eastern deserts were more depleted relative to the upper continental crust than in the western deserts, but were moderately depleted in the central deserts. The potential source rocks of central and western deserts are composed of intermediate igneous source rocks, while the sediments in eastern deserts are derived from the mixing of felsic and intermediate igneous source rocks or the mixing of quartzose deposits and intermediate igneous source rocks. The spatial distribution of geochemical elements showed similar provenances of aeolian material in the Taklimakan Desert and Kumtag Desert, and similar provenances of aeolian material in the Badain Jaran, Tengger, Ulan Buh, and Hobq deserts. There were no obvious provenance relationships for the Otindag, Horqin, and Hulun Buir sandy lands in the central and western deserts.
英文关键词	Chinese deserts Major elements Trace elements Provenance relationships
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000863672700001
WOS关键词	RARE-EARTH-ELEMENTS ; MU US DESERT ; TRACE-ELEMENTS ; LOESS DEPOSITS ; GRAIN-SIZE ; PROVENANCE ; DUST ; SIGNATURES ; MOUNTAINS ; CHEMISTRY
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395650
推荐引用方式 GB/T 7714	Wei, Guoru,Zhang, Chunlai,Li, Qing,et al. Characterization of geochemical elements in surface sediments from Chinese deserts[J],2023,220.
APA	Wei, Guoru.,Zhang, Chunlai.,Li, Qing.,Wang, Hongtao.,Wang, Rende.,...&Yuan, Yixiao.(2023).Characterization of geochemical elements in surface sediments from Chinese deserts.CATENA,220.
MLA	Wei, Guoru,et al."Characterization of geochemical elements in surface sediments from Chinese deserts".CATENA 220(2023).