硫化物Re-Os同位素定年分析方法及其在矿床年代学中的应用：研究现状及存在问题
摘要
With the development of chemical procedures and instrumental analyses, Re-Os isotopes in low-Re sulfides and oxides have been precisely analyzed, making it possible to date more types of deposits and reveal ore genesis.However, accumulating data and refinement research work have revealed many problems in the application of sulfides Re-Os dating.Processes including sample collection, Re and Os separation and purification and instrumental analysis, could affect the results of Re-Os isotopic compositions.In this article it reviews the characteristics of sulfides Re-Os isotope system, introduces separation and purification methods, and mass spectrometry analysis techniques, and systematically discusses possible influencing factors of sulfide Re-Os dating.A summary of precautions during the Re-Os dating works, to provide some help for future works.