sandstonen.砂岩
sandstone mixed with mudstone砂泥岩
sandstone with large porosity大孔隙率砂岩
sandstonetype uranium deposits砂岩型铀矿
sandstone type uranium deposit砂岩型铀矿
sandstone-conglomerate bodies砂砾岩
sandstone type uranium deposits砂岩型铀矿
sandstone-type copper deposit砂岩铜矿床
sandstone hydrocarbon reservoir砂岩油气藏