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本矿区位于某复背斜的东北部,区内主要分布寒武纪和震旦纪变质岩。 矿床分布于燕山期花岗岩岩株东南缘顶部,岩体沿北东断裂产出、侵入于变质岩中。按其矿物粒度和所含云母的种类,自上而下,由边缘向中心可分为:细粒白云母花岗岩;中粒——粗粒二云母花岗岩;粗粒黑云母花岗岩三种。其中白云母花岗岩中钠长石化锂云母化地段为钽铌矿体。黑云母花岗岩中尚有含钨石英脉。
The mining area is located in the northeast of a complex anticline, mainly distributed Cambrian and Sinian metamorphic rocks. The deposit is located at the top of the southeast margin of the Yanshanian granite rock mass. The rock mass is produced along the North East fault and intruded into the metamorphic rocks. According to its mineral grain size and the type of mica contained, from top to bottom, from the edge to the center can be divided into: fine muscovite granite; medium-coarse-grained micaceous granite; coarse-grained biotite granite three. One of the muscovite granite sodium feldspar lithiated mica malachite tantalum niobium ore body. There are tungsten quartz veins in biotite granite.