英语词汇“trachyte”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

trachyte

/ˈtreɪkʌɪt

/ /ˈtrakʌɪt

noun [mass noun] Geology

A grey fine-grained volcanic rock consisting largely of alkali feldspar.The mine workings occupy much of the west side of an isolated low hill composed mainly of light-colored volcanic rock, described as felsite porphyry or trachyte, highly altered to clay minerals....

The dominant magma types are basalts and hawaiites, with lesser amounts of trachytes, quartz trachytes, alkali rhyolites and phonolites.
In the Canaries, the lavas are much more compositionally varied in each of these stages, ranging from tholeiitic basalts to phonolites and trachytes.

Origin

Early 19th century (denoting a volcanic rock with a rough or gritty surface): from Greek trakhus 'rough' or trakhutēs 'roughness'.

单词	trachyte
释义	trachyte /ˈtreɪkʌɪt / /ˈtrakʌɪt / noun [mass noun] Geology A grey fine-grained volcanic rock consisting largely of alkali feldspar.The mine workings occupy much of the west side of an isolated low hill composed mainly of light-colored volcanic rock, described as felsite porphyry or trachyte, highly altered to clay minerals.... The dominant magma types are basalts and hawaiites, with lesser amounts of trachytes, quartz trachytes, alkali rhyolites and phonolites. In the Canaries, the lavas are much more compositionally varied in each of these stages, ranging from tholeiitic basalts to phonolites and trachytes. Origin Early 19th century (denoting a volcanic rock with a rough or gritty surface): from Greek trakhus 'rough' or trakhutēs 'roughness'.
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