云南个旧锡矿是世界著名的锡多金属矿床,开采历史悠久。其复杂的成矿地质特征备受地质学家关注,已有很多学者对其进行了详细的研究,但其成因仍然存在争议。矿区内发育的火成岩主要有印支晚期变碱性玄武岩和燕山晚期花岗岩,由于这两套火成岩都发育有不同程度的锡矿化,引发了研究人员对成矿母岩的探讨,形成 Gejiu Tin Mine in Yunnan Province is a world famous tin polymetallic deposit with a long history of mining. Its complex geological characteristics of mineralization have attracted the attention of geologists. Many scholars have carried out detailed research on it, but the causes are still controversial. The igneous rocks developed in the mines mainly include the late Indosinian alkaline basalts and the late Yanshanian granites. Since these two sets of igneous rocks all developed different levels of tin mineralization, they led researchers to discuss the metallogenic parent rocks and form