中文摘要：

随着表面热离子质谱（TIMS）和多接收器电感耦合等离子体质谱（MC-ICP-MS）的广泛应用以及同位素分析方法的改进,近10年来非传统稳定同位素（Cu、Zn、Fe、Se、Mo、Cr、Hg等）的研究得到迅速发展。其中,由于Mo同位素的分馏明显受氧化还原条件的控制,使其在指示古环境及古气候的变化方面有独特的地球化学指示意义。同时,Mo同位素在指示成矿物质来源和海洋Mo循环等方面也取得较大成果。因此,Mo同位素地球化学研究已成为国际地学领域的一个前沿和热点。本文综合前人的研究成果,结合近期自己的工作,论述了Mo同位素地球化学研究领域的一些重要进展,详细介绍了Mo同位素的化学分离、提纯和质谱分析技术,并对其应用前景进行了展望。

英文摘要：

With the improvement of analytical methods and the development of thermal ionisation mass spectrometry （TIMS） and multiple-collector inductively coupled plasma mass spectrometry （MC-ICP-MS）, the researches on geochemistry of non-traditional stable isotopes（Cu, Zn, Fe, Se, Mo, Cr, Hg） have made tremendous progress in the past ten years. Redox conditions are the primary reasons for Mo isotope fractionation, so Mo isotopic fractionation has been successfully employed to explain the evolution of paleoenvironment. Mo isotopic fractionation studies have yielded considerable results in explaining ore fluids in ore deposits and Mo cycling in ocean. Mo stable isotope geochemistry is therefore becoming a new frontier subject in earth sciences. Based on summarizing the previous researches and synthesizing the authors＇ results of Mo isotope studies, this paper deals with the main advances in the study of Mo stable isotopes with the particular emphasis placed on the separation of Mo from the sample, the determination method and correction for instrumental mass-dependent isotopic fractionation of the isotope tracer sample, and the application prospects of the Mo stable isotopes in earth sciences.