In the reaches of the Salawusu River of northern China, the upper part of thetransitional Salawusu Formation is considered through studies to be the ChengchuanFormation composed mainly of aeolian sands.

• 在传统认为属河湖相沉积的萨拉乌苏组,经研究在其上部划分出一套以风成砂沉积为主的城川组。