2.5-5 meters thick. 厚2.5—5米。 Altitude "3.8-4.2 m. 海拔”3.8—4.2米。 It is divided into Liuhe alluvial plain and Wusong River alluvial plain. 分为浏河冲积平原和吴淞江冲积平原。 It has an area of 64.15 square kilometers.