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.
通过对福山区主要含煤地层的沉积特征,即鲕粒、结核、层理、、生物及煤质等分析,总结出福山区童子组第三地层的沉积环境为:3号煤层为河控三角洲相沉积;