作者单位:李王晔(中国科学院壳幔物质与环境重点实验室,中国科学技术大学地球和空间科学学院,合肥230026;Isotope Laboratory Department of Geosciences and Arkansas Center for Space and Planetary Sciences, University of Arkansas, Fayetteville, AB 72701,USA)滕方振(Isotope Laboratory Department of Geosciences and Arkansas Center for Space and Planetary Sciences, University of Arkansas, Fayetteville, AB 72701,USA;Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, USA)肖益林,顾海欧(中国科学院壳幔物质与环境重点实验室,中国科学技术大学地球和空间科学学院,合肥230026)