单词 | coral-rag |
释义 | coral-rag Geol. [f. coral + rag in its local sense of hard coarse-textured rock.] The upper member of the Middle Oolite series, a kind of limestone, containing continuous beds of petrified corals.
1816W. Smith Strata Ident. 19 The Coral Rag consists chiefly of lumps of coralline Limestone. 1878Huxley Physiogr. xvii. 274 The coral-rag itself is altogether similar to the coral-limestone. |

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