coquina

coquina读音音标

英 [kəʊ\'ki:nə]

美 [koʊ\'kinə]

coquina意思解释

n.

软质石灰石的一种；

英英释义

Coquina (; Spanish: \"cockle\") is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically sorted fragments of the shells of either molluscs, trilobites, brachiopods, or other invertebrates. For a sediment to be considered to be a coquina, the average size of the particles composing it should be 2 mm or greater in size.