It has an outstanding feature of filling and leveling up.Its sedimentary facies were controlled by the marine transgression speed ,the sediments supply and the pre-transgression palaeotopography.

• 东河砂岩具有海侵初期填平补齐的特征，其沉积相决定于海侵的速度、沉积物的供给和海侵前的古地貌。