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DOI	10.1007/s11629-009-1020-8
	On the unusual holocene carbonate sediment in lake Nam Co, central Tibet
	Li Minghui; Kang Shichang; Zhu Liping; Wang Feiyue; Wang Junbo; Yi Chaolu; Fang Xiaomin; Xie Manping
发表日期	2009
ISSN	1672-6316
EISSN	1993-0321
卷号	6 期号:4
英文摘要	In lacustrine sediments, aragonite is a widespread mineral, whereas monohydrocalcite is a rare carbonate mineral. In the cold and high-attitude Xizang (Tibetan) Plateau, where aragonite has been commonly found in lacustrine sediments, there is no aragonite, but low-Mg calcite, monohydrocalcite and trace dolomite. The lake receives solutes primarily from surface runoffs and remains fairly constant water chemistry for a long time. The total CaCO3 percentage in sediments could be controlled by evaporation and inflow of detrital materials. The absence of aragonite is unusual when compared to other lacustrine sediments from the Tibetan Plateau. This could be due to low Ca/Mg ratio, low salinity, low Mg and Ca concentration. Monohydrocalcite might precipitate from the lake water mediated by biological activities. Low-Mg calcite originated from minor ostracoda shell and the precipitation of lake water with biological activities.
关键词	Carbonate minerals Lacustrine sediments Environment change Nam Co Tibet
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111530
作者单位	CAS, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Li Minghui,Kang Shichang,Zhu Liping,et al. On the unusual holocene carbonate sediment in lake Nam Co, central Tibet[J]. 中国科学院西北生态环境资源研究院,2009,6(4).
APA	Li Minghui.,Kang Shichang.,Zhu Liping.,Wang Feiyue.,Wang Junbo.,...&Xie Manping.(2009).On the unusual holocene carbonate sediment in lake Nam Co, central Tibet.JOURNAL OF MOUNTAIN SCIENCE,6(4).
MLA	Li Minghui,et al."On the unusual holocene carbonate sediment in lake Nam Co, central Tibet".JOURNAL OF MOUNTAIN SCIENCE 6.4(2009).