气候变化领域集成服务门户(CCPortal): Palaeo-hydrochemistry reconstructed from fossil mollusc shells from dammed palaeo-lake sediments in the Yarlung Tsangpo valley, Tibet

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DOI	10.1016/j.apgeochem.2021.105069
	Palaeo-hydrochemistry reconstructed from fossil mollusc shells from dammed palaeo-lake sediments in the Yarlung Tsangpo valley, Tibet
	Hu, Hai-Ping; Feng, Jin-Liang; Liu, Jin-Hua; Wu, Xiao-Ping; Chen, Feng; Zhang, Ji-Feng; Pei, Le-Le; Wang, Kun-Yin; Ye, Chang-Sheng
通讯作者	Hu, HP (通讯作者)
发表日期	2021
ISSN	0883-2927
EISSN	1872-9134
卷号	132
英文摘要	Radix sp., Gyraulus sp. and Pisidium sp. are aquatic mollusc taxa. Although their fossil shells occur widely in dammed palaeo-lake sediments in the Yarlung Tsangpo valley in Tibet, their hydrochemical and hydrological implications are not fully understood. Moreover, vital effects on the trace element and stable isotope composition of the aragonite shells of these molluscs are unclear. We measured the values of delta C-13(shell), delta O-18(shell), Sr/Ca-shell and Mg/Ca-shell of the fossil shells of Radix sp., Gyraulus sp., and Pisidium sp. collected from the dammed lake sedimentary sequences at Xigaze and Lhainxiang in Tibet, with the aim of reconstructing the palaeo-hydrochemistry and palaeo-hydrology of the dammed palaeo-lake. The results show that the values of delta O-18(water), Sr/Ca-water and electrical conductivity (EC) of the dammed palaeo-lake water are higher than those of the modern Yarlung Tsangpo River water. Nevertheless, the dammed palaeo-lake still exhibited a through-flow status, together with freshwater characteristics. The values of delta O-18(shell) and delta C-13(shell) of Gyraulus sp. and Radix sp. have a positive relationship, but their ratios of Sr/Ca shell and Mg/Ca shell are not correlated. Moreover, delta O-18(shell) in the Radix sp. shells is similar to 2.97 parts per thousand more enriched and has a stronger relationship with delta O-18(water) than is the case for shells of Gyraulus sp. The values of delta O-18(shell) and delta C-13(shell) of Pisidium sp. are similar to those of the shells of Radix sp., and we conclude that the shells of Radix sp. are the most suitable mollusc shell for recording the delta O-18(water) of the ambient water of water bodies in the Tibetan Plateau.
关键词	STABLE-ISOTOPE COMPOSITION ARAGONITIC BIVALVE SHELLS AQUATIC GASTROPOD RADIX CARBON ISOTOPES TRACE-ELEMENTS SR/CA RATIOS WATER PLATEAU OXYGEN MG/CA
英文关键词	Yarlung Tsangpo River; Dammed palaeo-lake; Mollusc shells; Palaeo-hydrochemistry; Vital effects
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000689518000005
来源期刊	APPLIED GEOCHEMISTRY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260313
推荐引用方式 GB/T 7714	Hu, Hai-Ping,Feng, Jin-Liang,Liu, Jin-Hua,et al. Palaeo-hydrochemistry reconstructed from fossil mollusc shells from dammed palaeo-lake sediments in the Yarlung Tsangpo valley, Tibet[J]. 中国科学院青藏高原研究所,2021,132.
APA	Hu, Hai-Ping.,Feng, Jin-Liang.,Liu, Jin-Hua.,Wu, Xiao-Ping.,Chen, Feng.,...&Ye, Chang-Sheng.(2021).Palaeo-hydrochemistry reconstructed from fossil mollusc shells from dammed palaeo-lake sediments in the Yarlung Tsangpo valley, Tibet.APPLIED GEOCHEMISTRY,132.
MLA	Hu, Hai-Ping,et al."Palaeo-hydrochemistry reconstructed from fossil mollusc shells from dammed palaeo-lake sediments in the Yarlung Tsangpo valley, Tibet".APPLIED GEOCHEMISTRY 132(2021).