| 释义 |
〔itacolumite〕A variety of sandstone that is flexible when cut into thin slabs.可弯砂岩:当被切进薄石板时易弯曲的一种砂岩〔sandstone〕A sedimentary rock formed by the consolidation and compaction of sand and held together by a natural cement, such as silica.砂岩:一种由砂固化与压积作用形成的沉积岩,通过自然胶结物粘到一起,如硅石〔graywacke〕Any of various dark gray sandstones that contain shale.杂砂岩:任何含有页岩的多种黑灰色砂岩之一 |