| 释义 |
沉积岩chénjīyán地球表面分布较广的岩层,是地壳岩石经过机械、化学或生物的破坏后沉积而成,大部分是在水中形成的,如砂岩、页岩、石灰岩等。其中常夹有生物化石,含有煤、石油等矿产。{sedimentary rock; widely distributed terrane or terrain on the surface of the earth, formed by rock from the earth's crust that is deposited when eroded through mechanical, chemical or biological power; most sedimentary rock, e.g. sandstone, shale, limestone, etc., is formed in water and carries biological fossils and minerals like coal, oil, etc.;}也叫also水成岩{shuǐchéngyán}。 |