They mainly consist of sandstone,in which quartzarenite and litharenite are dominant and arkose is lack.

碎屑岩以砂岩类为主，以石英砂岩类和岩屑砂岩类为主，缺少长石砂岩类。

Xiaertai rock group,a set of metamorphic rock system in Xiaertai area,has experienced strong ductilebrittle deformation and then thermal contact metamorphism and dynamometamorphism in the late stage.

经原岩恢复可将下二台岩群分为三个岩组：盘岭岩组，顶子岩组及烧锅屯岩组，原岩建造分别为火山岩建造、碳酸盐岩建造及碎屑岩建造。

Interlayer oxidized zone and argillite-sisandstone-argillite sequence occur in red clastic rock formation with ideal artesian and circulating system of ground water.

在红色碎屑岩建造有间氧化带和“泥-砂-泥”结构发育，并有良好的地下水承压和循环体制，是寻找可地浸砂岩型铀矿的有利地区。

The first rock is mainly andesite clinkering agglomerate, andesite breccia, dacite breccia, rhyolite breccia and rhyolite clinkering tuff.

正常火山碎屑岩亚类岩石类型主要为安山质熔结集块岩,安山质、英安质及流纹质火山角砾岩以及流纹质熔结凝灰岩。

The ore-bearing beds have a bimodal rock association and exhibit assembly characteristics of pyroclastic rock, orebody and exhalite.

含矿岩系为双峰岩石组合，具有火山碎屑岩-矿体-喷气岩“三位一体”特徵。