下部埋藏阶地的砂砾石层被钙质胶结的现象表明，该地区在二级阶地形成后有一段气候干燥而寒冷的时期。
In addition , the gravel layer partially cemented by calcium carbonate shows that there existed a period of cold and dry climate between the Late Pleistocene and the Early Holocene .
埋藏阶地