Molybdenum isotope fractionation during weathering of granite from Guangdong province,South China
Over the last decade,molybdenum isotope has become one of the most important tracers for redox state in the ancient oceans.The application of this system is based on a critical assumption that the Mo isotopic composition of the continental input is similar to the average of basalts and granites(ca.δ98/95Mo from -0.15 to 0.25‰,relative to the NISI SRM 3134 standard) and remain constant throughout geological history.Recent work has shown that the δ98/95Mo of global rivers is heavier than the average of continental rocks,and display a large range of from 0.0‰ to 2.15‰,indicating that Mo isotopes potentially fractionate during the soil-forming(pedogenic) or chemical weathering processes.However,at present,the mechanism for Mo isotope fractionation during these processes is in debate.
Zhibing Wang Jinlong Ma Jie Li Gangjian Wei
State Key Laboratory of Isotope Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China
国际会议
The 11th International Symposium on Geochemistry of the Earths Surface(GES-11)(第十一届地球表层地球化学国际研讨会)
贵阳
英文
1-1
2017-06-11（万方平台首次上网日期，不代表论文的发表时间）