单词 | proterobase |
释义 | > as lemmasproterobase proterobase n. Brit. /ˈprəʊtərə(ʊ)beɪs/ , U.S. /ˈproʊdərəˌbeɪs/ [after diabase n.] Geology (now rare) an altered basaltic or dioritic rock containing primary brown hornblende and purple-brown augite.ΚΠ 1882 G. F. Becker Geol. Comstock Lode iii. 74 Professor Rosenbusch mentions this change in connection with the proterobases of Lusatia. 1910 C. Reid Geol. Country around Padstow & Camelford 46 These proterobases from St. Minerva do not agree entirely with any described type... They may be called minverites, a sub-group of essexites. 1968 Mineral Mag. 36 874 The Devonian spilitic suite..includes sills of proterobase, albite diabase, and picrite... The proterobase..was named minverite. < as lemmas |
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