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单词 phyllite
释义

phyllite

/ˈfɪlʌɪt /
noun [mass noun] Geology
A fine-grained metamorphic rock with a well-developed laminar structure, intermediate between slate and schist.It is composed of gneiss and migmatite that contain minor lenses of schist, marble, phyllite and quartzite....
  • Foliated rocks may be slate, phyllite, or schist according to grain size.
  • Clasts in this facies are commonly arranged into stripes of a single lithology (typically phyllite, schist, quartzite or marble) and show peaks in the angular and very angular classes.

Origin

Late 19th century: from Greek phullon 'leaf' + -ite1.

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更新时间:2024/11/13 18:04:54