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

felsic

/ˈfɛlsɪk

adjective Geology

Relating to or denoting a group of light-coloured minerals including feldspar, feldspathoids, quartz, and muscovite: felsic volcanic rocks...

The present day volumetric variation in the amount of mafic and felsic volcanic rocks preserved in the Parana and Etendeka provinces is interesting.
The rocks of the complex show an overall trend of decreasing mafic minerals and increasing felsic minerals spatially from west to east.
The alternating bands of mafic and felsic minerals are a striking and distinctive feature of all gneisses.

Often contrasted with mafic.

Early 20th century: from feldspar + a contraction of silica.

单词	felsic
释义	felsic /ˈfɛlsɪk / adjective Geology Relating to or denoting a group of light-coloured minerals including feldspar, feldspathoids, quartz, and muscovite: felsic volcanic rocks... The present day volumetric variation in the amount of mafic and felsic volcanic rocks preserved in the Parana and Etendeka provinces is interesting. The rocks of the complex show an overall trend of decreasing mafic minerals and increasing felsic minerals spatially from west to east. The alternating bands of mafic and felsic minerals are a striking and distinctive feature of all gneisses. Often contrasted with mafic. Origin Early 20th century: from feldspar + a contraction of silica.
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