According to the study on athrogene grouth state,Chengzihe growp middle and down section are divided into subsection,which is reference for stratum judgement and coal seam comparison in later geology exploration.

• 通过对火山碎屑岩发育情况的研究，重新对城子河组中下段划分亚段，为后期勘探时地质判层及煤层对比作参考。