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DOI	10.1016/j.epsl.2023.118387
	Luminescence fingerprints fluvial sediment transport from the Tibetan Plateau to the Bangladesh Delta
	Zhang, Aimin; Gao, Qihui; Rahman, Sufi Mostafizur; Alam, Muhammad Mahbubul; Guo, Yujie; Chen, Yiwei; Chen, Jie; Wang, Huiying; Wang, Ping; Zhang, Jiafu; Yi, Chaolu; Hu, Gang
发表日期	2023
ISSN	0012-821X
EISSN	1385-013X
卷号	622
英文摘要	Fluvial sediment fingerprinting employs various methods, directly link sink and source. However, the identification and quantification of the transformation that sediments experience during fluvial transport remain unclear. The luminescence properties of quartz and K-feldspar change during the burial/exposure to sunlight cycles undergone by fluvial sediments, potentially allow scientists to trace fluvial sediment transport. Here, we report on changes in luminescence properties in active river bars from source to sink along the Yarlung Tsangpo-Brahmaputra River system. Optically stimulated luminescence (OSL) sensitivities and residual doses of quartz and K-feldspar within the fluvial sediments are used for the fingerprint method. Source rock is identified as the primary determinant of regional variations in quartz OSL sensitivities within fluvial sediments along the Yarlung Tsangpo River, while transportation distance governs local changes. Samples from narrower river channels with higher normalized channel steepnesses (Ksn) along the Yarlung Tsangpo River exhibit higher residual doses. Furthermore, the Brahmaputra River exhibits higher residual dose values compared to the Old Brahmaputra River. The sediments' residual doses are therefore employed to fingerprint fluvial erosion ability. Our luminescence fingerprint results indicate that coarse-grained fractions experience a dilution effect due to the input of new sediments after traveling approximately 50-200 km along the Yarlung Tsangpo River and about 50-100 km along the Brahmaputra-Old Brahmaputra River course. The comparison of luminescence (quartz and feldspar) and detrital zircon fingerprinting within the fluvial sediment holds the potential to trace weathering and erosion cycles during transportation in large river contexts. (c) 2023 Elsevier B.V. All rights reserved.
关键词	sediment fingerprint Yarlung Tsangpo river Brahmaputra river luminescence properties
英文关键词	OPTICALLY STIMULATED LUMINESCENCE; U-PB AGES; MAGNETIC-SUSCEPTIBILITY; SPATIAL VARIABILITY; BRAHMAPUTRA RIVER; VIRTUAL VELOCITY; DETRITAL ZIRCONS; MOJAVE RIVER; K-FELDSPAR; QUARTZ
WOS研究方向	Geochemistry & Geophysics
WOS记录号	WOS:001084298100001
来源期刊	EARTH AND PLANETARY SCIENCE LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283913
作者单位	China Earthquake Administration; Chinese Academy of Sciences; Nanjing Institute of Geography & Limnology, CAS; Jahangirnagar University; Hebei Normal University; Chinese Academy of Sciences; Guangzhou Institute of Geochemistry, CAS; China University of Geosciences - Beijing; Peking University; Tibet University
推荐引用方式 GB/T 7714	Zhang, Aimin,Gao, Qihui,Rahman, Sufi Mostafizur,et al. Luminescence fingerprints fluvial sediment transport from the Tibetan Plateau to the Bangladesh Delta[J],2023,622.
APA	Zhang, Aimin.,Gao, Qihui.,Rahman, Sufi Mostafizur.,Alam, Muhammad Mahbubul.,Guo, Yujie.,...&Hu, Gang.(2023).Luminescence fingerprints fluvial sediment transport from the Tibetan Plateau to the Bangladesh Delta.EARTH AND PLANETARY SCIENCE LETTERS,622.
MLA	Zhang, Aimin,et al."Luminescence fingerprints fluvial sediment transport from the Tibetan Plateau to the Bangladesh Delta".EARTH AND PLANETARY SCIENCE LETTERS 622(2023).