干旱区生态环境知识资源中心(Arid): Provenance and transport process for interdune sands in the Kumtagh Sand Sea, Northwest China

Arid

DOI	10.1016/j.geomorph.2020.107310
	Provenance and transport process for interdune sands in the Kumtagh Sand Sea, Northwest China
	Liang, Aimin; Dong, Zhibao; Su, Zhizhu; Qu, Jianjun; Zhang, Zhengcai; Qian, Guangqiang; Wu, Bo; Gao, Junliang; Yang, Zhuanling; Zhang, Caixia
通讯作者	Dong, ZB
来源期刊	GEOMORPHOLOGY
ISSN	0169-555X
EISSN	1872-695X
出版年	2020
卷号	367
英文摘要	Interdune areas are an important part of dune systems, as they affect dune evolution and sand sea development. However, there has been little work on the provenance of interdune sediments. Our lack of knowledge of these sediments prevents a more complete understanding of sand sea formation and evolution. In the present study, we focused on the provenance of interdune sediments in the Kumtagh Sand Sea based on their granular, mineral and geochemical characteristics, then further identified the spatial scope of the contribution of these sources to the interdune sediments and the associated transport mechanisms. Although sediment supply analysis suggested that the interdune sand may derive from the Altyn Tagh Mountains, Beishan Mountains, and Sanlongsha dune field, the provenance signature based on the K/Rb and K/Ba ratios revealed that the ultimate sources were the Altyn Tagh Mountains (in the south) and the Beishan Mountains (in the north). By plotting the identified provenance results on a map of the sand sea, we found that the spatial scopes of contributions from these sources were separated at around 40 degrees N. However, the existence of a fluvial load (EM1) and of reworked coarse particles (EM3) in the northern sand sea demonstrated that the interdune sands in this region were partly derived from the Altyn Tagh Mountains in the south. Consequently, by combining our results with the transport agents condition, we concluded that the Altyn Tagh Mountains supplied sediments to interdune areas by fluvial transport throughout the sand sea, but that sediment in the northern sand sea was subsequently reworked and mixed with windblown sand originated from the Beishan Mountains. (c) 2020 Elsevier B.V. All rights reserved.
英文关键词	Interdune area Sediment provenance Grain size Mineralogy Geochemistry Spatial scope Transport mechanisms
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000564543300004
WOS关键词	GRAIN-SIZE ; DUNE FIELD ; GEOCHEMICAL EVIDENCE ; TAKLIMAKAN DESERT ; AEOLIAN DEPOSITS ; TIBETAN PLATEAU ; SIMPSON-DESERT ; WHITE SANDS ; SEDIMENTS ; ORIGIN
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325919
作者单位	[Liang, Aimin; Qu, Jianjun; Zhang, Zhengcai; Qian, Guangqiang; Yang, Zhuanling; Zhang, Caixia] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; [Liang, Aimin; Yang, Zhuanling] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Dong, Zhibao] Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710062, Peoples R China; [Su, Zhizhu] Shanxi Univ, Sch Hist & Culture, Taiyuan 030006, Peoples R China; [Wu, Bo] Chinese Acad Forestry, Inst Desertificat, Beijing 100091, Peoples R China; [Gao, Junliang] Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou 015200, Peoples R China
推荐引用方式 GB/T 7714	Liang, Aimin,Dong, Zhibao,Su, Zhizhu,et al. Provenance and transport process for interdune sands in the Kumtagh Sand Sea, Northwest China[J],2020,367.
APA	Liang, Aimin.,Dong, Zhibao.,Su, Zhizhu.,Qu, Jianjun.,Zhang, Zhengcai.,...&Zhang, Caixia.(2020).Provenance and transport process for interdune sands in the Kumtagh Sand Sea, Northwest China.GEOMORPHOLOGY,367.
MLA	Liang, Aimin,et al."Provenance and transport process for interdune sands in the Kumtagh Sand Sea, Northwest China".GEOMORPHOLOGY 367(2020).