The sedimentary facies in the region is of typical trisection units, which are western carbonate platform facies, eastern basin facies and slope facies of middle transition belts.

• 在对沉积相平面展布、沉积演化等沉积体系分析的基础上,综合考虑了古地理沉积环境、沉积相平面组合规律及控制因素,建立了塔东地区寒武-奥陶系沉积演化模式。