The ore-bearing beds have a bimodal rock association and exhibit assembly characteristics of pyroclastic rock, orebody and exhalite.
系为双峰石组合，具有火山
屑-体-喷气“三位一体”特
。
屑的屑物屑屑流；火成屑流The ore-bearing beds have a bimodal rock association and exhibit assembly characteristics of pyroclastic rock, orebody and exhalite.
系为双峰石组合，具有火山屑-体-喷气“三位一体”特。
The strata strike NE,and its rock association are consisted of pyroclastic sedimentary rock,micrite and pyroclastic rocks,and containts brachiopoda,coral,bryozoan.
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。
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