通过岩石学、同位素年代学、变形变质特征的研究及区域对比，认为凤太泥盆纪盆地东缘（黄柏原一带）原划泥盆纪地层应为新太古代－古元古代变质结晶基底，变质达角闪岩相，其可能是佛坪穹隆构造向西北延伸，进一步证明了泥盆纪时西部凤太盆地和东部山（阳）柞（水）镇（安）盆地是两个独立盆地，中间被佛坪穹隆隔挡。该项成果对研究南秦岭地壳演化和指导凤太地区的地质找矿意义重大。 Based on the study of petrology, isotopic chronology, metamorphism and metamorphism, it is concluded that the Devonian strata in the eastern margin of the Fengtai Devonian basin (Huangbaiyuan area) should be Neoarlyan-Paleoproterozoic metamorphic crystalline basement, The metamorphic amphibolite facies, which may be the Foping dome extension to the northwest, further proved that the Devonian western Fengtai Basin and the eastern mountain (Yang) oak (Ann) basin are two independent basins, Foping dome in the middle separated by blocks. This result is of great significance for studying the evolution of the South Qinling crust and guiding the geology prospecting in the Fengtai area.