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

 
  • 時(shí)代屬于中泥盆世早期,大體相當于艾菲爾階-吉維特階,應歸屬為大民山組。
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