三级构造地貌有六种类型，即断陷冲积平原、掀斜冲积平原、火山锥、断层谷、侵入岩丘陵和拱曲高地。
The third class includes taphrogenic and alluvial plain , tilted and alluvial plain , volcanic cone , fault valley , intruded rock hills and hog-back highland .
冲积锥