单词 | sedimentary rock |
释义 | sedimentary rocknoun : rock formed of mechanical, chemical, or organic sediment: such as a : clastic rock (as conglomerate, sandstone, or shale) formed of fragments of other rock transported from its source and deposited in water b : rock (as rock salt or gypsum) formed by precipitation from solution c : rock (as limestone) formed from secretions of organisms |
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