^(182)W anomalies in mantle:a brief review  

作　　者：Yining Zhang Yun Liu 

机构地区：[1]State Key Laboratory of Ore Deposit Geochemistry,Chinese Academy of Sciences,Guiyang,550081,China [2]University of Chinese Academy of Sciences,Beijing,100049,China [3]International Research Center for Planetary Science,College of Earth Sciences,Chengdu University of Technology,Chengdu,610059,China [4]CAS Center for Excellence in Comparative Planetology,Hefei,230026,China

出　　处：《Acta Geochimica》2022年第4期704-716,共13页地球化学学报（英文）

基　　金：supported by the Strategic Priority Research Program(B)of CAS(XDB41000000);Pre-research Project on Civil Aerospace Technologies No.D020202 is funded by the Chinese National Space Administration(CNSA)and Chinese NSF projects(42130114)。

摘　　要：With significant advances in mass spectrometry for isotope analysis in the last decade,e.g.,negative thermal ionization mass spectrometry and multi-collector inductively coupled plasma mass spectrometry,high-precision(ppm-level)measurements of tungsten(W)isotopes have been widely used for early earth differentiation processes,such as metal-silicate segregation,melting and crystallization processes during the magma ocean,and putative core-mantle exchange and dynamics.Here,we give a brief review of works on ^(182)W anomalies in terrestrial samples,including methods,results,explanations,implications,and prospects.The review will be presented by including the following parts:the introduction of W isotopes and the short-lived radioactive ^(182)Hf-^(182)W system;data notations and W isotope measurement methods;^(182)W anomalies observed in terrestrial samples;a summary of models developed for interpreting origins of positive and negative ^(182)W anomalies;future prospects.

关 键 词：^(182)W anomalies Mantle samples MC-ICPMS N-TIMS NORMALIZATION 

分 类 号：P542.5[天文地球—构造地质学]