单词 | palaeo-volcanic |
释义 | > as lemmaspalaeo-volcanic palaeo-volcanic adj. Brit. /ˌpalɪə(ʊ)vɒlˈkanɪk/ , /ˌpeɪlɪə(ʊ)vɒlˈkanɪk/ , U.S. /ˌpeɪlioʊˌvɔlˈkænɪk/ , /ˌpeɪlioʊˌvɑlˈkænɪk/ Geology designating volcanic rocks of a period older than the Tertiary.ΚΠ 1887 Amer. Naturalist 21 177 The palæo-volcanic rocks include the quartz-porphyries, quartz-free-porphyries, porphyrites, augite-porphyrites and melaphyres, and the pikrite-porphyrites. 1903 A. Geikie Text-bk. Geol. (ed. 4) I. ii. ii. 98 The older or palæo-volcanic are separated from the younger or neo-volcanic effusive rocks. 1982 Earth & Planetary Sci. Lett. 59 139 (heading) Clinopyroxene composition as a method of identification of the magmatic affinities of paleo-volcanic series. < as lemmas |
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