The paper introduces the sedimentary environment of coal and coal?bearing strata,the properties of coal seams and the causes resulted in the variation of seam thickness in laung mining district,Kalimantan Tengah,Indonesia. ?

• 介绍了印尼中加里曼丹拉翁煤矿区煤和含煤岩系的沉积环境、煤层特征以及引起煤厚变化的原因。