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详细信息

责任者：Guo Huaming (School of Water Resources and Environment ; China University of Geosciences ; Beijing 100083 ; China) ; Zhang Bo
刊名：Earth Science Frontiers
出版年：2010
卷期：17(6)
关键词：地下水 ; groundwater ; 砷 ; arsenic ; 稀土元素 ; rare earths ; 河套盆地 ; Hetao Basin
页码：p.59-66
图表：5 illus., 24 refs.
分类号：1701
issnNo：ISSN1005-2321
isbnNo：CN11-3370/P

摘要

High arsenic groundwater is a world-wide environmental issue.Although the progress has been made concerning the geochemistry,formation environment and As enrichment mechanism of high As groundwaters, the concentrations and patterns of rare earth element (REE) in these groundwaters are unclear.Groundwater samples from the Hetao Basin, a typical high As groundwater basin in China, are investigated through in-situ measurements and laboratory analyses. The authors found that the concentration of REE is relatively low in the high As groundwater samples. The data normalized according to Northern American Shale Composite (NASC) exhibit a REE pattern with enriched HREEs and depleted LREEs for all groundwater samples. HREEs enrichment can be explained by carbonate complexation, while reabsorption in slightly weak alkaline environment could be the cause of LREEs depletion.

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