Fan-Deltaic Depositional Systems of the Xiguayuan Formation in Luanping Basin
滦平盆地西瓜园组扇三角洲沉积体系构成及其特征

Lower Cretaceous Xiguayuan Formation in southwenstem Luanping basin is characterized by fan - deltaic depositional successions. The depositional system of Luanping fan-delta can be further divided into 3 sedimentary associations (deltaic plain, deltaic front and prodelta) and 17 genetic units. Depositional microfacies of all genetic units are described in detail.