And then on with the flat layer.

然后在平面层上。

The same energy swept up the crater walls and caused the flat plane layers of rock behind me to actually be uplifted.

撞击的能量同时也形成了这坑壁造成了我周围升起的这些岩层。

Tar pit deposits tend to be isolated, deep, and cone-shaped, but the fossils at Tanque Loma occur in a single, relatively flat layer.

焦油坑沉积物往往是孤立的、深的和锥形的，但 Tanque Loma 的化石出现在一个相对平坦的单一层中。