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单词 mafic
释义

Definition of mafic in English:

mafic

adjective ˈmafɪkˈmafik
Geology
  • Relating to or denoting a group of dark-coloured, mainly ferromagnesian minerals such as pyroxene and olivine.

    〔地质〕铁镁质的;镁铁矿石的。常与FELSIC 相对

    Often contrasted with felsic
    Example sentencesExamples
    • In particular, in most of the eastern part of the complex, mafic minerals are very uncommon.
    • The Musgrave Block consists of granulite-facies felsic gneisses, granites, felsic and mafic granulites, and voluminous mafic-ultramafic intrusive rocks.
    • 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.

Definition of mafic in US English:

mafic

adjectiveˈmafik
Geology
  • Relating to, denoting, or containing a group of dark-colored, mainly ferromagnesian minerals such as pyroxene and olivine.

    〔地质〕铁镁质的;镁铁矿石的。常与FELSIC 相对

    Often contrasted with felsic
    Example sentencesExamples
    • The alternating bands of mafic and felsic minerals are a striking and distinctive feature of all gneisses.
    • Variably serpentinized Devonian mafic and ultramafic intrusive rocks occur in the western and northern parts of the map area.
    • If such adiabatic freezing were to control the ascent of hydrous mafic magmas, basalts would probably never erupt in volcanic arcs.
    • In particular, in most of the eastern part of the complex, mafic minerals are very uncommon.
    • The Musgrave Block consists of granulite-facies felsic gneisses, granites, felsic and mafic granulites, and voluminous mafic-ultramafic intrusive rocks.

Origin

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

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更新时间:2025/6/19 6:27:16