干旱区生态环境知识资源中心(Arid): Microtextural features on quartz grains from eolian sands in a subaqueous sedimentary environment: A case study in the hinterland of the Badain Jaran Desert, Northwest China

Arid

DOI	10.1016/j.aeolia.2020.100573
	Microtextural features on quartz grains from eolian sands in a subaqueous sedimentary environment: A case study in the hinterland of the Badain Jaran Desert, Northwest China
	Li, Zhuolun; Yu, Xinhui; Dong, Shipei; Chen, Qiujie; Zhang, Cheng
通讯作者	Li, Zhuolun
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2020
卷号	43
英文摘要	Recognizing the sedimentary environments of sand layers in desert areas aids in evaluating the reliability of using these materials to assess paleoenvironmental changes. Nevertheless, determining whether eolian sand has ever been in a subaqueous sedimentary environment remains difficult. The work presented here tests microtextures on quartz grains from a predominantly eolian environment and tries to differentiate grains shaped purely by eolian processes from those also subjected to subaqueous action. In this study, 124 samples including lake sediments, river sediments, and eolian sediments were collected from the Badain Jaran Desert hinterland and adjacent areas. Microtextural assemblages on the quartz grains were analyzed by scanning electron microscopy. The results reveal that the microtextural features have variable frequencies among different sand samples, including lake sediments, eolian sand, and river sand. Eolian sand deposited in a subaqueous sedimentary environment not only has the specific microtextures of subaqueous sedimentary environments such as V-shaped percussion cracks, straight or curved grooves and scratches, oriented etch pits, solution crevasses, and scaling but also retains the unique microstructures of eolian sedimentary environments such as crescentic percussion marks. Therefore, the above microtextural features can distinguish whether eolian sand has ever been in a subaqueous sedimentary environment. This study provides a new method for discriminating the sedimentary environments of eolian sands in desert hinterlands.
英文关键词	Eolian sand Sedimentary environment Surface microtextures Sand sea Arid region
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000526121300002
WOS关键词	ASIAN MONSOON MARGIN ; SURFACE TEXTURES ; MICRO-TEXTURES ; CHEMICAL-COMPOSITION ; ELECTRON-MICROSCOPY ; SEM MICROTEXTURES ; LATE PLEISTOCENE ; HOLOCENE ; LAKE ; EVOLUTION
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/313904
作者单位	Lanzhou Univ, Coll Earth & Environm Sci, Ctr Glacier & Desert Res, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhuolun,Yu, Xinhui,Dong, Shipei,et al. Microtextural features on quartz grains from eolian sands in a subaqueous sedimentary environment: A case study in the hinterland of the Badain Jaran Desert, Northwest China[J]. 兰州大学,2020,43.
APA	Li, Zhuolun,Yu, Xinhui,Dong, Shipei,Chen, Qiujie,&Zhang, Cheng.(2020).Microtextural features on quartz grains from eolian sands in a subaqueous sedimentary environment: A case study in the hinterland of the Badain Jaran Desert, Northwest China.AEOLIAN RESEARCH,43.
MLA	Li, Zhuolun,et al."Microtextural features on quartz grains from eolian sands in a subaqueous sedimentary environment: A case study in the hinterland of the Badain Jaran Desert, Northwest China".AEOLIAN RESEARCH 43(2020).