Sedimentary rocks—the most common rock type near the surface—are also the most common reservoirs for water because they contain the most space that can be filled with water.

沉积岩——地表附近最常见的岩石类型——也是最常见的储水层，因为它们可以装水的空间最多。

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Attempts were made to calculate Earth's age from the thickness of surviving sedimentary rock and from the current level of the oceans' salinity.

人们曾试图根据现存沉积岩的厚度和目前海洋的盐度水平来计算地球的年龄。

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At a now-famous seaside outcrop on the eastern coast of Scotland, he saw nearly horizontal layers of red sandstone on top of completely vertical layers of a much different, gray sedimentary rock.

在现在著名的苏格兰东部海岸的海滨露岩上，他看到近乎水平的红色砂岩层位于与它非常不同的灰色沉积岩层的上面。

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