干旱区生态环境知识资源中心(Arid): Atmospheric dustfall exhibits consistent sedimentary sorting with height evidenced by grain size characteristics

Arid

DOI	10.1016/j.scitotenv.2022.161143
	Atmospheric dustfall exhibits consistent sedimentary sorting with height evidenced by grain size characteristics
	Lin, Yongchong; Mu, Guijin; Zhao, Xue; Xu, Lishuai; Zhang, Jifeng
通讯作者	Xu, LS
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	864
英文摘要	The grain size of aeolian deposits is a key property to understanding their sedimentary sorting characteristics, which determine the sedimentary dynamics of an airflow field. Although atmospheric dust sedimentary sorting processes are understood well in the horizontal direction, those in the vertical direction and their influencing factors remain unclear. Herein, modern atmospheric dustfall was collected using dust traps at heights of 1, 2, 4, 6, and 8 m to reveal its sedimentary sorting characteristics. The analysis demonstrated that atmospheric dustfall exhibits a bimodal grain size distribution, and the bimodal grain size distribution curves change within a height of 8 m. However, either peak 1 or peak 2 exhibits consistent grain size characteristics with height; hence, each sub-peak indicates consistent sedimentary sorting within a height of 8 m. The modification of grain size distribution curves with height is mainly driven by different sedimentary fluxes for peak 1 at different heights. Dustfall grain size characteristics are also potentially affected by the settling height, concentration of the atmospheric dust, and dust sedimentary flux. However, the sedimentary sorting of sub-peak components is mainly governed by the near-surface airflow field. Thus, this reveals the process of formation and grain size distribution of aeolian deposits. Overall, atmospheric dustfall with mixed multi-peak components conceals information on the sedimentary environment.
英文关键词	Atmospheric dustfall Sedimentary flux Sedimentary sorting Bimodal grain size distribution
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000917046000001
WOS关键词	SOUTHERN MARGIN ; CHINESE LOESS ; AEOLIAN DEPOSITION ; TIBETAN PLATEAU ; CENTRAL-ASIA ; CELE OASIS ; LAKE ; RECORD ; TRANSPORT ; STORMS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398498
推荐引用方式 GB/T 7714	Lin, Yongchong,Mu, Guijin,Zhao, Xue,et al. Atmospheric dustfall exhibits consistent sedimentary sorting with height evidenced by grain size characteristics[J],2023,864.
APA	Lin, Yongchong,Mu, Guijin,Zhao, Xue,Xu, Lishuai,&Zhang, Jifeng.(2023).Atmospheric dustfall exhibits consistent sedimentary sorting with height evidenced by grain size characteristics.SCIENCE OF THE TOTAL ENVIRONMENT,864.
MLA	Lin, Yongchong,et al."Atmospheric dustfall exhibits consistent sedimentary sorting with height evidenced by grain size characteristics".SCIENCE OF THE TOTAL ENVIRONMENT 864(2023).