IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2009  > Vol6 No.4
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
Corresponding AuthorKang, SC
2009-12
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume6Issue:4Pages:346–353
AbstractIn 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 CaCO(3) 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.
KeywordCarbonate Minerals Lacustrine Sediments Environment Change Nam Co Tibet
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6035
CollectionJournal of Mountain Science_Journal of Mountain Science-2009_Vol6 No.4
Recommended Citation
GB/T 7714
Li Minghui,Kang Shichang,Zhu Liping,et al. On the unusual holocene carbonate sediment in lake Nam Co, central Tibet[J]. JOURNAL OF MOUNTAIN SCIENCE,2009,6(4):346–353.
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),346–353.
MLA Li Minghui,et al."On the unusual holocene carbonate sediment in lake Nam Co, central Tibet".JOURNAL OF MOUNTAIN SCIENCE 6.4(2009):346–353.
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