钒（V）是一个氧化还原敏感元素，其价态受环境氧化还原状态控制。近年来，随着MC-ICP-MS分析技术的突破，岩浆岩体系中的微小V同位素分馏可以被准确识别。因此，V同位素在高温地质过程的研究中展现出了广阔的应用前景。理
解V同位素在岩浆演化过程中的分馏机理是将其应用于高温地球化学研究的基础。文章综述了岩浆岩V同位素的研究结果，指出矿物结晶是V同位素分馏的主要控制因素。研究表明，硅酸盐矿物的分离结晶会改变熔体的V同位素组成，而Fe-Ti氧化物是V同位素分馏的关键控制因素，Fe-Ti氧化物的分离结晶会导致残余熔体的δ51V值升高。此外，先前的研究认为原始玄武岩的V同位素对氧逸度的变化不敏感，而近期的观点则认为在较低的部分熔融程度和较高的氧逸度时有可识别的V同位素分馏。基于此，文章总结了V同位素的应用：在示踪地壳演化方面，V同位素构建了长英质陆壳与板块构造的密切联系；在制约层状侵入体形成方面，V同位素揭示了原始岩浆到高度分异产物的演化路径；在示踪幔源岩浆源区方面，V同位素表明部分熔融及结晶分异共同主导了碳酸盐熔体向碱性玄武岩的转化。这些研究充分展示了V同位素在高温地质过程研究中的巨大潜力。

Vanadium (V) is a redox-sensitive element, and its valence is controlled by the environmental redox conditions. In
recent years, the advancement in MC-ICP-MS analytical techniques has enabled the precise identification of subtle V isotope fractionation in igneous systems. As a result, V isotopes have shown great potential in the study of high-temperature geological processes. Understanding the mechanism of V isotope fractionation during igneous evolution is fundamental to their application in high-temperature geochemical research. This paper reviews the research findings on V isotopes in igneous rocks and points out that mineral crystallization and oxygen fugacity are the main factors controlling V isotope fractionation. Studies have shown that the separation crystallization of silicate minerals can alter V isotope composition of the melt. Moreover, Fe-Ti oxides are key factors controlling V isotope fractionation, and their separation crystallization can lead to an increase in the δ51V value of the residual melt. Additionally, while previous studies suggested that the V isotopes of primitive basalts are not sensitive to changes in oxygen fugacity, recent views indicate that there is recognizable V isotope fractionation at lower degrees of partial melting and higher oxygen fugacity. Based on this, this paper summarizes the applications of V isotopes as follows: in tracing crustal evolution, V isotopes have allowed to establish a close link between felsic continental crust and plate tectonics; in constraining the formation of layered intrusions, V isotopes reveal an evolutionary path from primitive magmas to highly differentiated products; and in tracing mantle-derived magma sources, V isotopes suggest that partial melting and fractional crystallization jointly dominate the transformation of carbonate melts into alkaline basalts. These studies fully demonstrate the great potential of V isotopes in the study of high-temperature geological processes.