basin facies

例句：

1. 1. The sedimentary rocks in this area are mainly composed of sandstone and limestone.
   该地区的沉积岩主要由砂岩和石灰岩组成。
2. 2. The basin facies analysis helps us understand the evolution of the Earth's crust.
   盆地相分析帮助我们理解地球地壳的演化。
3. 3. The study of basin facies is crucial for understanding the tectonic history of the region.
   研究盆地相对于理解该地区的构造历史至关重要。