位于幕阜山脉北麓的崇通盆地的第四纪地层系统,过去由于没有发现下更新统而有所空缺。
Since the Lower Pleistocene series in Chongtong basin which is at the north foot of Mufu mountain has not been found for a long time , the Quaternary stratigraphic system appears to be not complete .