depositional topography

例句：

1. 1.The study of depositional topography is crucial for understanding the formation of geological structures.
   沉积地形的研究对于理解地质结构的形成至关重要。
2. 2.The depositional topography of the region has a significant impact on its climate.
   该地区的沉积地形对其气候有显著影响。
3. 3.Geologists use depositional topography to map out the distribution of sedimentary rocks.
   地质学家使用沉积地形来绘制沉积岩的分布图。