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。

The strata strike NE,and its rock association are consisted of pyroclastic sedimentary rock,micrite and pyroclastic rocks,and containts brachiopoda,coral,bryozoan.

时代属于中泥盆世早期,大体相当于艾菲尔阶-吉维特阶,应归属为大民山组。