non-stratified rock

例句：

1. 1. The geologist found that the non-stratified rock was formed by the slow accumulation of sediment over millions of years.
   地质学家发现，这种非层状岩石是由数百万年缓慢沉积物积累形成的。
2. 2. The formation of this type of rock is crucial for understanding the history of our planet's crust.
   这种岩石的形成对于理解地球地壳的历史至关重要。
3. 3. The non-stratified rock is often used as a building material due to its durability and strength.
   由于其耐用性和强度，这种非层状岩石常被用作建筑材料。