Arsenic in a Speleothem from Central China: Stadial-Interstadial Variations and Implications
Zhou, HY (Zhou, Houyun)[1,2,6]; Greig, A (Greig, Alan)[3]; You, CF (You, Chenfeng)[4]; Lai, ZH (Lai, Zhihui)[5]; Tang, J (Tang, Jing)[1]; Guan, YY (Guan, Yanyan)[5]; Yuan, DX (Yuan, Daoxian)[6]
2011-02-15
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷号45期号:4页码:1278-1283
文章类型期刊论文
摘要

In a pilot study, arsenic in a stalagmite (SJ3) collected from Central China was measured, and its association with past climate and environment was explored. Most of the SJ3 arsenic concentrations ranged from 120 to 320 ppb with the highest concentrations associated with relatively warm and humid climatic phases and lowest concentrations with cold and dry phases. The SJ3 arsenic record was very similar to the manganese record of SJ3. Variations of arsenic in SJ3 might be controlled by metal oxides of iron, manganese, and aluminum in karst groundwater at the study site, which in turn were closely related with changes in past climate and environment. A considerable proportion of arsenic was in excess over manganese in SJ3, which might be related with incorporation of arsenic into the calcite lattice during the formation of SJ3. It was speculated that more arsenic was released due to stronger weathering of the surface soils and sequestrated by metal oxides in karst groundwater under warm-humid climatic phases than under cold-dry phases. This suggested that climate shift might alter arsenic balance in sedimentary areas and aquifer systems and potentially exert significant influence on global arsenic contamination.

DOI10.1021/es1032103
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10328
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Zhou, HY (Zhou, Houyun)[1,2,6]
作者单位1.School of Geography, South China Normal University, Guangzhou 510631, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710075, China;
3.School of Earth Sciences, University of Melbourne, Melbourne 3010, Australia;
4.The Earth Dynamic System Research Center, National Cheng-Kung University, Tainan 701, Taiwan, ROC;
5.Instrumental Analysis and Research Center, Sun Yat-sen University, Guangzhou 510275, China;
6.School of Geographical Science, Southwest University, Chongqing 400715, China
推荐引用方式
GB/T 7714
Zhou, HY ,Greig, A ,You, CF ,et al. Arsenic in a Speleothem from Central China: Stadial-Interstadial Variations and Implications[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2011,45(4):1278-1283.
APA Zhou, HY .,Greig, A .,You, CF .,Lai, ZH .,Tang, J .,...&Yuan, DX .(2011).Arsenic in a Speleothem from Central China: Stadial-Interstadial Variations and Implications.ENVIRONMENTAL SCIENCE & TECHNOLOGY,45(4),1278-1283.
MLA Zhou, HY ,et al."Arsenic in a Speleothem from Central China: Stadial-Interstadial Variations and Implications".ENVIRONMENTAL SCIENCE & TECHNOLOGY 45.4(2011):1278-1283.
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