地质学报2025，Vol.99Issue(6)：1905-1917,13.DOI:10.19762/j.cnki.dizhixuebao.2024609
锡同位素地球化学研究进展及其应用
Advances and application in tin isotope geochemistry
摘要
Abstract
Tin(Sn)isotopes constitute a non-traditional stable isotope system with significant tracing potential and value in fields such as astrochemistry,archaeology,petrology,and economic geology.This emerging isotope system is undergoing rapid development in international geochemistry.This paper reviews the analytical methods,the isotopic composition of different reservoirs,the fractionation mechanisms of tin isotopes,and their specific applications in planetary science,archaeology,and mineral deposits.The application of multi-collector inductively coupled plasma-mass spectrometry(MC-ICP-MS)combined with the double-spike method has greatly improved the accuracy and efficiency of Sn isotope analysis,thereby promoting the development and application of Sn isotope geochemistry.The Sn isotope compositions of carbonaceous chondrites are similar to those of Earth,while ordinary chondrites have lower Sn isotope values.The overall Sn isotope composition of mantle rocks is slightly higher than that of crustal rocks.Redox reactions,vapor-fluid phase separation,cassiterite precipitation,partial melting,fractional crystallization,and melt-fluid interactions are important mechanisms leading to Sn isotope fractionation.Based on these results,the Sn isotope system has been preliminarily applied to tracing the early evolution of celestial bodies,the origin of bronzes,magma evolution,and the formation of mineral deposits.In addition,this paper summarizes and looks forward to the key scientific issues that should be addressed in future Sn isotope research.关键词
锡同位素/分析方法/分馏机理/应用Key words
Sn isotopes/analytical method/fractionation mechanisms/applications引用本文复制引用
孙克克,胡瀚文,高荣臻,陈彦交..锡同位素地球化学研究进展及其应用[J].地质学报,2025,99(6):1905-1917,13.基金项目
本文为中央高校基本科研业务费项目(编号 B240201151)、地质过程与矿产资源国家重点实验室开放基金项目(编号 GPMR202315)和中国石化科技部青年基金项目(编号 P24189)联合资助的成果. （编号 B240201151）
