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单词 neovolcanic
释义

neovolcanicadj.

Brit. /ˌniːəʊvɒlˈkanɪk/, U.S. /ˈˌnioʊvɔlˈkænɪk/, /ˈˌnioʊvɑlˈkænɪk/
Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: neo- comb. form, volcanic adj.
Etymology: < neo- comb. form + volcanic adj., after German neovulkanisch (H. Rosenbusch Mikroskopische Physiogr. der massigen Gesteine (ed. 2, 1887) II. 6).
Geology.
Of, relating to, or designating volcanic rocks and phenomena dating from the Tertiary period (up to about 65 million years ago) to the present time (contrasted with palaeovolcanic). Now often: spec. designating or relating to zones of recent volcanic activity.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > volcanic > other volcanics
Uriconian1886
neovolcanic1887
metavolcanic1956
1887 Amer. Naturalist 21 177 The pretertiary effusive rocks are known as palæo-volcanic, the younger ones as neo-volcanic.
1903 A. Geikie Text-bk. Geol. (ed. 4) I. ii. 1 vii. ii. 98 The older or palæo-volcanic are separated from the younger or neo-volcanic effusive rocks.
1968 Science 28 June 1437/1 Iceland is..divided by a Quaternary neovolcanic zone which separates the Tertiary plateau basalt province into a western and an eastern portion. In this zone there have been many eruptions in historical times.
1989 Nature 18 May 207/1 The behaviour is consistent with the hypothesis that the upper crust fractures as it spreads away from the neovolcanic zone.
2001 Earth & Planetary Sci. Lett. 190 31 At fast and superfast spreading mid-ocean ridges..a plate boundary is defined by a narrow (tens to hundreds of meters wide) neovolcanic zone within which the bulk of the upper oceanic crust is created.
This is a new entry (OED Third Edition, September 2003; most recently modified version published online March 2022).
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adj.1887
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