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

mafic

/ˈmafɪk

adjective Geology

Relating to or denoting a group of dark-coloured, mainly ferromagnesian minerals such as pyroxene and olivine. Often contrasted with felsic.Variably serpentinized Devonian mafic and ultramafic intrusive rocks occur in the western and northern parts of the map area....

The alternating bands of mafic and felsic minerals are a striking and distinctive feature of all gneisses.
If such adiabatic freezing were to control the ascent of hydrous mafic magmas, basalts would probably never erupt in volcanic arcs.

Origin

Early 20th century: blend of magnesium and a contracted form of ferric.

单词	mafic
释义	mafic /ˈmafɪk / adjective Geology Relating to or denoting a group of dark-coloured, mainly ferromagnesian minerals such as pyroxene and olivine. Often contrasted with felsic.Variably serpentinized Devonian mafic and ultramafic intrusive rocks occur in the western and northern parts of the map area.... The alternating bands of mafic and felsic minerals are a striking and distinctive feature of all gneisses. If such adiabatic freezing were to control the ascent of hydrous mafic magmas, basalts would probably never erupt in volcanic arcs. Origin Early 20th century: blend of magnesium and a contracted form of ferric.
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