Sedimentary characteristics and filling model of Permian in South Qilian basin

South Qilian basin is located on the Caledonian basement basin,marine Permian constitute the main part of the Permian,the Permian Basin through the sedimentary characteristics of the analysis of the region and the Permian sedimentary environment filling pattern,comprehensive development that Permian carbonate platform facies,littoral,shallow continental shelf,deltaic,fluvial facies 5 and experience of the Early Permian lemengou period of depression basin Caodigou period on the edge of depression basin and hajier-zongshigong period even the depression of the residual public epicontinental basin.