单词 | continental nucleus |
释义 | continental nucleus [¦känt·ǝn¦ent·ǝl `nü·klē·ǝs] GEOLOGY A large area of basement rock consisting of basaltic and more mafic oceanic crust and periodotitic mantle from which it is postulated that continents have grown. Also known as continental shield; cratogene; shield. |
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