单词 | Phanerozoic |
释义 | Phanerozoic/ˌfan(ə)rə(ʊ)ˈzəʊɪk /adjective Geology 1Relating to or denoting the aeon covering the whole of time since the beginning of the Cambrian period, and comprising the Palaeozoic, Mesozoic, and Cenozoic eras. Compare with Cryptozoic.The Indian plate rocks include late Archaean, Proterozoic and Phanerozoic continental margin sequences....
1.1 (as noun the Phanerozoic) The Phanerozoic aeon or the system of rocks deposited during it. The Phanerozoic began about 570 million years ago, and covers the period in which rocks contain evidence of abundant life in the form of obvious mineralized fossils. OriginLate 19th century: from Greek phaneros 'visible, evident' + zōion 'animal' + -ic. |
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