“tholoid”的英文意思_释义_用法

单词

tholoid

释义

tholoid Geol.|ˈθəʊlɔɪd|
[f. Gr. θόλος see tholos + -oid.]
A dome-shaped, steep-sided extrusion of hardened lava plugging the vent of a volcano.
In quot. 1912 repr. a Ger. form.
1912Jrnl. Geol. XX. 85 ‘Tholoides’ have slopes of over 35° and are convex upward.1939Nature 25 Nov. 913/2 Of the latter [sc. new volcanoes] there were two:..(b) Iōzima-Sintō, south of Kyūsyū.., which was of the tholoid type.1976P. Francis Volcanoes iv. 151 Even when the tholoid is shrouded in mist and invisible, as it often is in the afternoon, the dry clattering continues, with every now and then a much larger collapse taking place.

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