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词汇 poikilitic
释义

Definition of poikilitic in English:

poikilitic

adjective ˌpɔɪkɪˈlɪtɪkˌpoikəˈlidik
Geology
  • Relating to or denoting the texture of an igneous rock in which small crystals of one mineral occur within crystals of another.

    〔地质〕嵌晶结构的,嵌晶状的

    Example sentencesExamples
    • Collected from the eastern half of the Orlica-Snieznik Dome near the border with the Keprm'k dome, sample SZ-IOa is a well-foliated garnet-zone gneiss that contains minor poikilitic garnet with fractures containing pinite.
    • In the southern Siniscola schists, chloritoid and poikilitic garnet porphyroblasts have overgrown the earliest cleavage.
    • A volatile-rich metasomatic phase produced late growth of poikilitic K-feldspars, layered pegmatites and aplite dikes and an explosive network of dykes emanating out of the top of the Nuptse-Everest leucogranite.

Origin

Mid 19th century: from Greek poikilos 'variegated' + -ite1 + -ic.

Definition of poikilitic in US English:

poikilitic

adjectiveˌpoikəˈlidik
Geology
  • Relating to or denoting the texture of an igneous rock in which small crystals of one mineral occur within crystals of another.

    〔地质〕嵌晶结构的,嵌晶状的

    Example sentencesExamples
    • A volatile-rich metasomatic phase produced late growth of poikilitic K-feldspars, layered pegmatites and aplite dikes and an explosive network of dykes emanating out of the top of the Nuptse-Everest leucogranite.
    • In the southern Siniscola schists, chloritoid and poikilitic garnet porphyroblasts have overgrown the earliest cleavage.
    • Collected from the eastern half of the Orlica-Snieznik Dome near the border with the Keprm'k dome, sample SZ-IOa is a well-foliated garnet-zone gneiss that contains minor poikilitic garnet with fractures containing pinite.

Origin

Mid 19th century: from Greek poikilos ‘variegated’ + -ite + -ic.

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