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单词 alkali feldspar
释义

Definition of alkali feldspar in English:

alkali feldspar

noun
Geology
  • Any of the group of feldspars rich in sodium and/or potassium.

    〔地质〕长石

    Example sentencesExamples
    • The first phase of diagenetic albite constitutes an impure, turbid variety including albitized grains of original plagioclase and alkali feldspar.
    • Of these, alkali feldspar, particularly orthoclase, is the most common.
    • Olson states that the first mineral to be deposited was a reddish alkali feldspar, followed by abundant deposition of epidote and smaller amounts of pumpellyite.
    • On the other hand, the mogila granite had a darker mineral texture, a greater content of the mineral plagioclase, and large pink crystals of alkali feldspar up to 1.5 inches in length to 0.5 inches in width.
    • Closer to the contact microcline is replaced by sanidine, and perthitic exsolution in detrital alkali feldspar begins to disappear.

Definition of alkali feldspar in US English:

alkali feldspar

noun
Geology
  • Any of the group of feldspars rich in sodium and/or potassium.

    〔地质〕长石

    Example sentencesExamples
    • Olson states that the first mineral to be deposited was a reddish alkali feldspar, followed by abundant deposition of epidote and smaller amounts of pumpellyite.
    • Of these, alkali feldspar, particularly orthoclase, is the most common.
    • The first phase of diagenetic albite constitutes an impure, turbid variety including albitized grains of original plagioclase and alkali feldspar.
    • On the other hand, the mogila granite had a darker mineral texture, a greater content of the mineral plagioclase, and large pink crystals of alkali feldspar up to 1.5 inches in length to 0.5 inches in width.
    • Closer to the contact microcline is replaced by sanidine, and perthitic exsolution in detrital alkali feldspar begins to disappear.
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更新时间:2024/11/9 0:01:45