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greisen

/ˈɡraɪ.zən/

翻译: 云英岩,一种主要由石英和云母组成的变质岩,通常由花岗岩在高温流体作用下蚀变而成。

1 个条目

noun

/ˈɡraɪ.zən/formaltechnical
  • zh云英岩,一种主要由石英和云母组成的变质岩,通常由花岗岩在高温流体作用下蚀变而成。

A granitic rock composed primarily of quartz and mica, often formed by the alteration of granite through the action of high-temperature fluids.

  1. Granitic rockC2formalscientific

    A metamorphic rock derived from granite, composed primarily of quartz and mica, often formed by the alteration of granite by high-temperature fluids.

    zh云英岩

    • The geologist identified the sample as greisen due to its high quartz and mica content.
    • Greisen deposits are often associated with tin and tungsten mineralization.
    • The outcrop showed a distinct transition from granite to greisen.