| A | B |
|---|
| sedimentary rock | 沉积岩 （岩石碎片或沙土形成）rock formed from sediments that have been pressed together |
| stratified | 一层一层的 horizontal layers |
| unstratified | 没有层次的 no layers |
| clastic | 岩石碎片形成的沉积岩form from broken pieces |
| chemical | 富含矿物的水蒸发后形成的沉积岩。（石灰岩，岩盐）Don't involve any living things |
| organic | 贝壳或生物残骸形成的沉积岩（石灰岩）form from material that was once living (shells ...). |
| evaporation | 蒸发 The sun dries the water on the Earth. |
| precipitation | 溶液中析出的固体 to settle out of a solution into a solid |
| deposition | 沉积 process by which sediments are laid down in the new places. |
| compaction | 压 Layers of sediments are pressed together to make sedimentary rocks. |
| cementation | 岩石碎片被水中的矿物粘在一起 process by which sediments are glued together by minerals in water to make sedimentary rock |
| sediment | 岩石碎片small pieces of rocks |
| Law of Horizontality | 岩石碎片一层一层地沉积， 层叠沉积法规 |
| Law of Superposition | 最老的岩层在最底下，下面岩层比上面岩层老 |
