Definition of trachyte in English:

trachyte

noun ˈtreɪkʌɪtˈtrakʌɪt

mass nounGeology

A grey fine-grained volcanic rock consisting largely of alkali feldspar.
〔地质〕粗面岩
Example sentencesExamples
- Its occurrence is largely restricted to relatively unusual alkalic igneous rocks, such as sodic granites, certain syenites and trachytes, and related carbonatite-bearing terranes.
- In the Canaries, the lavas are much more compositionally varied in each of these stages, ranging from tholeiitic basalts to phonolites and trachytes.
- Sanidine is found only in quickly cooled lavas such as trachytes; microcline occurs in slowly cooled granites.
- The dominant magma types are basalts and hawaiites, with lesser amounts of trachytes, quartz trachytes, alkali rhyolites and phonolites.
- 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.

Origin

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

Definition of trachyte in US English:

trachyte

noun

Geology

A gray fine-grained volcanic rock consisting largely of alkali feldspar.
〔地质〕粗面岩
Example sentencesExamples
- In the Canaries, the lavas are much more compositionally varied in each of these stages, ranging from tholeiitic basalts to phonolites and trachytes.
- The dominant magma types are basalts and hawaiites, with lesser amounts of trachytes, quartz trachytes, alkali rhyolites and phonolites.
- 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.
- Its occurrence is largely restricted to relatively unusual alkalic igneous rocks, such as sodic granites, certain syenites and trachytes, and related carbonatite-bearing terranes.
- Sanidine is found only in quickly cooled lavas such as trachytes; microcline occurs in slowly cooled granites.

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	Definition of trachyte in English: trachyte noun ˈtreɪkʌɪtˈtrakʌɪt mass nounGeology A grey fine-grained volcanic rock consisting largely of alkali feldspar. 〔地质〕粗面岩 Example sentencesExamples Its occurrence is largely restricted to relatively unusual alkalic igneous rocks, such as sodic granites, certain syenites and trachytes, and related carbonatite-bearing terranes. In the Canaries, the lavas are much more compositionally varied in each of these stages, ranging from tholeiitic basalts to phonolites and trachytes. Sanidine is found only in quickly cooled lavas such as trachytes; microcline occurs in slowly cooled granites. The dominant magma types are basalts and hawaiites, with lesser amounts of trachytes, quartz trachytes, alkali rhyolites and phonolites. 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. Origin Early 19th century (denoting a volcanic rock with a rough or gritty surface): from Greek trakhus 'rough' or trakhutēs 'roughness'. Definition of trachyte in US English: trachyte noun Geology A gray fine-grained volcanic rock consisting largely of alkali feldspar. 〔地质〕粗面岩 Example sentencesExamples In the Canaries, the lavas are much more compositionally varied in each of these stages, ranging from tholeiitic basalts to phonolites and trachytes. The dominant magma types are basalts and hawaiites, with lesser amounts of trachytes, quartz trachytes, alkali rhyolites and phonolites. 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. Its occurrence is largely restricted to relatively unusual alkalic igneous rocks, such as sodic granites, certain syenites and trachytes, and related carbonatite-bearing terranes. Sanidine is found only in quickly cooled lavas such as trachytes; microcline occurs in slowly cooled granites. 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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