干旱区生态环境知识资源中心(Arid): Morphology and mineralogical composition of sandblasting dust particles from the Taklimakan Desert

Arid

DOI	10.1016/j.scitotenv.2022.155315
	Morphology and mineralogical composition of sandblasting dust particles from the Taklimakan Desert
	Hu, Tafeng; Wu, Feng; Song, Yingpan; Liu, Suixin; Duan, Jing; Zhu, Yuqing; Cao, Junji; Zhang, Daizhou
通讯作者	Wu, F
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	834
英文摘要	The physicochemical characteristics of dust particles from the Taklimakan Desert are the fundamental basis for the assessment of particle variation during their long-distance transport and the subsequent environmental effects. In this study, 43,222 individual sandblasting dust particles, which were mobilised using a chamber with surface soils of sand dunes and Gobi (the two types of surfaces constituting the desert) were analysed to statistically quantify the shape and mineralogical composition of dust particles from the desert. The mode of the number-size distribution of particles from the sand dunes was 0.5-0.7 mu m and that of particles from Gobi soils was approximately 1.0 mu m. In contrast, the distributions of particle number fractions versus shape factors such as aspect ratio and roundness were similar, despite the irregular shape of the particles. Clay mineral particles were most frequently composed of chlorite and kaolinite, accounting for 66.74 +/- 12.08% of the particles from both types of soils. Quartz and feldspar particles accounted for 9.57 +/- 4.52% and 2.84 +/- 1.28%,respectively. The mineralogical composition of particles smaller than 1.0 mu m, in both soil types, was dominated by chlorite (Al-Si-O-Mg), kaolinite (Ai-Si-O), and quartz (SiO). Gypsum (CaS) and halite (NaCl) were the major salt components in particles from both soil types. Gypsum-containing particles existed in a wide size range and occupied 3.42%-8.98% of the particles from Gobi soils and 0.27%-2.18% of the particles from sand dunes. Most gypsum-containing particles were mixed with Si-containing minerals in the form of silicate or aluminosilicate; the remaining gypsum-containing particles were gypsum crystals or mixtures of gypsum and Ca-containing minerals. These results provide a comprehensive statistical profile of dust particles released by the sandblasting process from the Taklimakan Desert to the atmosphere.
英文关键词	The Taklimakan Desert Dust particles Individual particle analysis Shape factors Mineralogical compositions
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000796284600013
WOS关键词	STORM PARTICLES ; ELEMENTAL COMPOSITION ; NATURAL OASES ; AEOLIAN DUST ; GOBI DESERT ; APRIL 1998 ; SEA-SALT ; AEROSOL ; CHINA ; CLIMATE
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/2XILL650/394380
推荐引用方式 GB/T 7714	Hu, Tafeng,Wu, Feng,Song, Yingpan,et al. Morphology and mineralogical composition of sandblasting dust particles from the Taklimakan Desert[J],2022,834.
APA	Hu, Tafeng.,Wu, Feng.,Song, Yingpan.,Liu, Suixin.,Duan, Jing.,...&Zhang, Daizhou.(2022).Morphology and mineralogical composition of sandblasting dust particles from the Taklimakan Desert.SCIENCE OF THE TOTAL ENVIRONMENT,834.
MLA	Hu, Tafeng,et al."Morphology and mineralogical composition of sandblasting dust particles from the Taklimakan Desert".SCIENCE OF THE TOTAL ENVIRONMENT 834(2022).