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词汇 pelite
释义

Definition of pelite in English:

pelite

noun ˈpiːlʌɪtˈpēlīt
Geology
  • A sediment or sedimentary rock composed of very fine clay or mud particles.

    〔地质〕泥质岩

    the Eastern Cordillera comprises pelites of pre-Ordovician age
    Example sentencesExamples
    • In most successions of metamorphic rocks, those with reactive lithologies, such as mature pelites, make up only a small proportion of the rock mass.
    • There is no evidence for the superimposition of two entirely separate high-grade metamorphic regimes either in the calc-silicate rocks or in the associated pelites.
    • A variety of sedimentary lithologies have been metamorphosed including pelites, psammites, quartzites and carbonates.
    • Foliations vary from grain-shape fabrics in quartzites and psammites, to a dominant crenulation cleavage in pelites, with intermediate rocks showing folded cleavage within a bed, and sometimes two cross-cutting cleavages.
    • The latter sediments are covered by pelites and sandstones carrying marine invertebrate fossils and deltaic facies with a Glossopteris flora, which indicates an Early Permian age.

Origin

Late 19th century: from Greek pēlos 'clay, mud' + -ite1.

Rhymes

Peelite

Definition of pelite in US English:

pelite

nounˈpēlīt
Geology
  • A very fine-grained sediment or sedimentary rock composed of clay or mud particles.

    〔地质〕泥质岩

    the Eastern Cordillera comprises pelites of pre-Ordovician age
    Example sentencesExamples
    • Foliations vary from grain-shape fabrics in quartzites and psammites, to a dominant crenulation cleavage in pelites, with intermediate rocks showing folded cleavage within a bed, and sometimes two cross-cutting cleavages.
    • There is no evidence for the superimposition of two entirely separate high-grade metamorphic regimes either in the calc-silicate rocks or in the associated pelites.
    • In most successions of metamorphic rocks, those with reactive lithologies, such as mature pelites, make up only a small proportion of the rock mass.
    • A variety of sedimentary lithologies have been metamorphosed including pelites, psammites, quartzites and carbonates.
    • The latter sediments are covered by pelites and sandstones carrying marine invertebrate fossils and deltaic facies with a Glossopteris flora, which indicates an Early Permian age.

Origin

Late 19th century: from Greek pēlos ‘clay, mud’ + -ite.

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