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DOI	10.1016/j.jop.2023.01.002
	Grain-size and compositional variability of Yarlung Tsangpo sand (Xigaze transect, south Tibet): Implications for sediment mixing by fluvial and aeolian processes
	Lai, Wen; Liang, Wen-Dong; Hu, Xiu-Mian; Garzanti, Eduardo; Lu, Hua-Yu; Dong, Xiao-Long
发表日期	2023
ISSN	2095-3836
EISSN	2524-4507
起始页码	195
结束页码	210
卷号	12 期号:2
英文摘要	Studying the grain-size dependent compositional variability in modern river sediments provides a key to decipher the information stored in the sedimentary archive and reconstruct the evolution of the Earth's surface in the past. Bedload sand along the Xigaze cross section of the Yarlung Tsangpo (upper Brahmaputra River) ranges in mean grain size from 0.72 0 to 3.21 0, is moderately to poorly sorted and slightly platykurtic to moderately leptokurtic with sub-angular to sub-spherical grains. Litho-feldspatho-quartzose to feldspatholitho-quartzose sand (Q 43%-65%; F 13%-44%; L 11%-28%) contains 3.4%-14.4% heavy minerals including amphibole (64%-89%), epidote (4%-11%), chloritoid (0-10%), and clinopyroxene (2%-6%). The marked textural and compositional variability observed across the Xigaze transect of the Yarlung Tsangpo mainstem is controlled by both fluvial and aeolian processes, including repeated reworking by westerly and glacial winds, as well as by local contributions from northern and southern tributaries draining the Lhasa Block and the Himalayan Belt, respectively. The modern sedimentary case here will shed new light on interpreting paleogeography and provenance.
关键词	Modern fl uvial sediments Sand petrography Heavy minerals Fluvial aeolian interactions End member grain -size modeling Lhasa Block Himalayan Belt
英文关键词	FORE-ARC BASIN; ZIRCON U-PB; ZANGBO SUTURE ZONE; LHASA TERRANE; FORMATION MECHANISM; RIVER-BASIN; PROVENANCE; EVOLUTION; SUBDUCTION; PETROGENESIS
WOS研究方向	Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000988588200001
来源期刊	JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283535
作者单位	Nanjing University; Chengdu University of Technology; Nanjing University; University of Milano-Bicocca
推荐引用方式 GB/T 7714	Lai, Wen,Liang, Wen-Dong,Hu, Xiu-Mian,et al. Grain-size and compositional variability of Yarlung Tsangpo sand (Xigaze transect, south Tibet): Implications for sediment mixing by fluvial and aeolian processes[J],2023,12(2).
APA	Lai, Wen,Liang, Wen-Dong,Hu, Xiu-Mian,Garzanti, Eduardo,Lu, Hua-Yu,&Dong, Xiao-Long.(2023).Grain-size and compositional variability of Yarlung Tsangpo sand (Xigaze transect, south Tibet): Implications for sediment mixing by fluvial and aeolian processes.JOURNAL OF PALAEOGEOGRAPHY-ENGLISH,12(2).
MLA	Lai, Wen,et al."Grain-size and compositional variability of Yarlung Tsangpo sand (Xigaze transect, south Tibet): Implications for sediment mixing by fluvial and aeolian processes".JOURNAL OF PALAEOGEOGRAPHY-ENGLISH 12.2(2023).