南岭地区燕山早期多阶段复式岩体中,第三阶段补充侵入的细粒花岗岩,是本区许多钨锡铌钽矿床形成的直接母岩。文中对它的地质产状形态、岩石学、岩石化学和交代蚀变作用等方面作了阐述。论述了成矿岩体矿化与否以及形成何种类型的矿化与岩体形态、气化热液蚀变作用的类型和强度、多阶段岩体成矿元素的演化和富集程度等有密切关系,探讨了成矿模式,并指出它对找矿勘探的现实意义. In the early Yanshanian multi-stage complex rock mass in the Nanling region, the third stage is to supplement intrusive fine-grained granite, which is a direct parent rock formed by many W-Nb-Ta deposits in this area. In this paper, its geological production status, petrology, petrochemistry and metasomatic alteration and other aspects are described. The mineralization and the formation of rock mass, the type and intensity of gasification hydrothermal alteration, the evolution and enrichment degree of ore-forming elements of multi-stage rock mass are discussed Closely related to explore the metallogenic model, and pointed out its practical significance of prospecting exploration.