In the area covered by Zhuolan formation, rock layers are homogeneously inclined with no specific geologic structures, the drainage development is in dip direction.

• 另外，在垂直空间分析中，绘制贯穿大安溪、大甲溪及其河阶地之河流横剖面，以讨论此剖面上所显露之地形特徵。