The result on this sedimentary environment was an offshore terrigenous fresh water lake from permian of Shiqanfeng Formation marinecontinental transitional facies in the southern of north China.

• 研究区地层自南西向北东呈现依次增厚的趋势，整体为北东方向倾斜的宽缓斜坡环境；砂岩分布特征指示物源来自南部隆起区和沉积中心在研究区以北地区。