paleontologic

The paper has discussed the sedimentary characteristics of primary coal-bearing strata in the region, These are the following, oolites, nodules, bedding, rock and mineral, paleontologic and coaly.

通过对区主要含煤地层的沉特征,即鲕粒、结核、层理、岩、古生物及煤质等分析,总结出区童子岩组第三段上亚段地层的沉环境为:3号煤层为河控三角洲相沉;