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单词 kreep
释义

kreep

听听怎么读
[kri:p]
是什么意思
  • n.

    克里普矿物;

  • 英英释义

    KREEP

    • KREEP, an acronym built from the letters K (the atomic symbol for potassium), REE (Rare Earth Elements) and P (for phosphorus), is a geochemical component of some lunar impact breccia and basaltic rocks. Its most significant feature is somewhat enhanced concentration of a majority of so-called "incompatible"elements (those that are concentrated in the liquid phase during magma crystallization) and the heat-producing elements, namely radioactive uranium, thorium, and potassium (due to presence of the radioactive 40K).

    以上来源于:Wikipedia

    学习怎么用

    权威例句

    KREEP
    Origin of KREEP
    The origin of KREEP
    The origin of KREEP
    The origin of KREEP. [lunar composition
    The “Procellarum KREEP Terrane”: Implications for mare volcanism and lunar evolution
    Metasomatic products of the lunar magma ocean: The role of KREEP dissemination
    The materials of the lunar Procellarum KREEP Terrane: A synthesis of data from geomorphological mapping, remote sensing, and sample ...
    Zr and Nb partition coefficients: Implications for the genesis of mare basalts, KREEP and sea floor basalts
    SIMS U–Pb study of zircon from Apollo 14 and 17 breccias: Implications for the evolution of lunar KREEP
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