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Environmental geochemistry of calcium isotopes: Applications of a new stable isotope approach
引用本文:刘占民,刘丛强,韩贵琳,王中良,薛紫晨,宋照亮,杨成.Environmental geochemistry of calcium isotopes: Applications of a new stable isotope approach[J].中国地球化学学报,2006,25(2):184-194.
作者姓名:刘占民  刘丛强  韩贵琳  王中良  薛紫晨  宋照亮  杨成
作者单位:State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Graduate School Chinese Academy of Sciences Beijing 100039 China,State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences,State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences,State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences,State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Graduate School Chinese Academy of Sciences Beijing 100039 China,State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Graduate School Chinese Academy of Sciences Beijing 100039 China,State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Graduate School Chinese Academy of Sciences Beijing 100039 China,Guiyang 550002 China Guiyang 550002 China Guiyang 550002 China Guiyang 550002 China Guiyang 550002 China Guiyang 550002 China Guiyang 550002 China
基金项目:This paper was supported financially by the Important Research 0rien- tation Project of the Chinese Academy of Sciences (KZCX3-SW-140).
摘    要:1IntroductionIn nature, calcium has six naturally occurring sta-ble isotopes with atomic mass units (amu) and the a-bundances of40Ca (96.941%),42Ca (0.647%),43Ca (0.135%),44Ca (2.086%),46Ca (0.004%)and48Ca (0.187%) are presented in this paper.These analyt…

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Environmental geochemistry of calcium isotopes: Applications of a new stable isotope approach
Zhanmin Liu,Congqiang Liu,Guilin Han,Zhongliang Wang,Zichen Xue,Zhaoliang Song,Cheng Yang.Environmental geochemistry of calcium isotopes: Applications of a new stable isotope approach[J].Chinese Journal of Geochemistry,2006,25(2):184-194.
Authors:Zhanmin Liu  Congqiang Liu  Guilin Han  Zhongliang Wang  Zichen Xue  Zhaoliang Song  Cheng Yang
Institution:(1) State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang, China;(2) Graduate School, Chinese Academy of Sciences, 100039 Beijing, China
Abstract:This paper summarizes isotope fractionation mechanism, analytical method and applications in environmental geochemistry of calcium isotopes. Calcium isotopic composition can be used to constrain material sources and study geological and environmental processes as the isotopic composition of calcium (δ 44Ca) and fractionation processes depend on geochemical circumstances in nature. Recently, thanks to current advances in analytical technology of calcium isotopes, calcium isotopes are broadly used in biological and geochemical studies, such as the mechanism of plants imbibing nutrients through their roots, calcium transport in the environmental ecosystem, calcium cycle in oceans and paleo-oceans and paleo-climate. The elementary data show that δ44Ca values vary from -2.88‰ to 0.92‰ in natural samples.
Keywords:calcium isotope  fractionation  advances and applications
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