Fig.7 Iron isotope compositions of various geological samples relative to IRMM-014 analyzed over the period of three months.The gray line represents a linear regression ofδ^56Fe vs.δ^57 Fe with a slope of 1.490±...Fig.7 Iron isotope compositions of various geological samples relative to IRMM-014 analyzed over the period of three months.The gray line represents a linear regression ofδ^56Fe vs.δ^57 Fe with a slope of 1.490±0.015(SE)(R^2=0.9665,N=332).This relationship is statistically consistent with both theoretical predictions of mass-dependent isotope fractionation(slope of 1.475;Young et al.2002)and with previously measured isotopic mass-dependent fractionation trends using Nu Plasma(slope of 1.482;Chen et.al.2017a).展开更多
The radionuclide(RN)migration study is not only helpful to understand environmental behavior of RNs,but also can establish the basis for the safety assessment of geological disposal of high-level radioactive waste(HLW...The radionuclide(RN)migration study is not only helpful to understand environmental behavior of RNs,but also can establish the basis for the safety assessment of geological disposal of high-level radioactive waste(HLW).In the context of China’s HLW disposal,this review briefly summaries the progress of China’s RN migration studies over the past decade regarding three aspects,RN sorption,RN transport and radioactive colloid.Domestic studies from other disciplines(such as geology and environmental science)are also included in this review because they can provide references for the RN migration study.Overall,China has achieved clear progress in RN migration study over the past decade,although large-scaled field experiments are lacked and a gap still exists comparing with the international advanced level.Finally,several suggestions are proposed for future RN migration research in China.展开更多
基金supported by National Nature Science Foundation of China (Grant Numbers 41776067 and 41630968)
文摘Fig.7 Iron isotope compositions of various geological samples relative to IRMM-014 analyzed over the period of three months.The gray line represents a linear regression ofδ^56Fe vs.δ^57 Fe with a slope of 1.490±0.015(SE)(R^2=0.9665,N=332).This relationship is statistically consistent with both theoretical predictions of mass-dependent isotope fractionation(slope of 1.475;Young et al.2002)and with previously measured isotopic mass-dependent fractionation trends using Nu Plasma(slope of 1.482;Chen et.al.2017a).
基金supported by the National Natural Science Foundation of China(Nos.21806064,U1730245,21906074,22176079)Fundamental Research Funds for the Central Universities(No.lzujbky-2021-sp27)。
文摘The radionuclide(RN)migration study is not only helpful to understand environmental behavior of RNs,but also can establish the basis for the safety assessment of geological disposal of high-level radioactive waste(HLW).In the context of China’s HLW disposal,this review briefly summaries the progress of China’s RN migration studies over the past decade regarding three aspects,RN sorption,RN transport and radioactive colloid.Domestic studies from other disciplines(such as geology and environmental science)are also included in this review because they can provide references for the RN migration study.Overall,China has achieved clear progress in RN migration study over the past decade,although large-scaled field experiments are lacked and a gap still exists comparing with the international advanced level.Finally,several suggestions are proposed for future RN migration research in China.
