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词汇 clastic
释义

Definition of clastic in English:

clastic

adjective ˈklastɪkˈklæstɪk
Geology
  • Denoting rocks composed of broken pieces of older rocks.

    〔地质〕(岩石)碎屑(状)的,由碎屑构成的

    a group of clastic sediments such as conglomerates
    Example sentencesExamples
    • In contrast, the Cambrian clastic rocks are characterized by a paucity of these zircons, suggesting a significant difference between Neoproterozoic and Cambrian drainage systems.
    • The Allouez Conglomerate is composed mainly of red-colored clastic rocks with lesser amounts of sandstone and siltstone.
    • Mechanical deposition, by water or wind, produces clastic rocks composed of broken fragments, generally of silicate minerals and small pieces of rock: sandstones and conglomerates.
    • The upper unit consists of red continental clastic rocks of presumed Pcrmo-Triassic age, overlain by Triassic carbonate rocks.
    • No volcanic or clastic sedimentary rocks were obtained from Cavalli Seamount.

Origin

Late 19th century: from French clastique, from Greek klastos 'broken in pieces'.

Definition of clastic in US English:

clastic

adjectiveˈklæstɪkˈklastik
Geology
  • Denoting rocks composed of broken pieces of older rocks.

    〔地质〕(岩石)碎屑(状)的,由碎屑构成的

    a group of clastic sediments such as conglomerates
    Example sentencesExamples
    • No volcanic or clastic sedimentary rocks were obtained from Cavalli Seamount.
    • The upper unit consists of red continental clastic rocks of presumed Pcrmo-Triassic age, overlain by Triassic carbonate rocks.
    • The Allouez Conglomerate is composed mainly of red-colored clastic rocks with lesser amounts of sandstone and siltstone.
    • Mechanical deposition, by water or wind, produces clastic rocks composed of broken fragments, generally of silicate minerals and small pieces of rock: sandstones and conglomerates.
    • In contrast, the Cambrian clastic rocks are characterized by a paucity of these zircons, suggesting a significant difference between Neoproterozoic and Cambrian drainage systems.

Origin

Late 19th century: from French clastique, from Greek klastos ‘broken in pieces’.

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