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单词 proterobase
释义

> as lemmas

proterobase
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.
extracted from protero-comb. form
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as lemmas
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更新时间:2025/2/1 14:42:47