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单词 chondrite
释义

Definition of chondrite in English:

chondrite

nounˈkɒndrʌɪtˈkɑndraɪt
  • A stony meteorite containing small mineral granules (chondrules).

    球粒陨石

    Example sentencesExamples
    • Carbonaceous chondrites are representative of the early material of the solar system, very primitive material, so it's the closest we get to the stuff from which the solar system evolved.
    • If the impact object was a stony carbonaceous chondrite there would be silicates all over the impact site.
    • My research has largely been in the chemistry of how the particular components of chondrites, very primitive meteorites, actually formed in the solar nebula.
    • Known as the Ningqiang carbonaceous chondrite, the primitive meteorite is a space relic that formed shortly after the solar system's creation.
    • They also make up well over half of the organic compounds in the most common type of meteorites, called carbonaceous chondrites, which have rained down on the Earth along with other cosmic dust ever since the planet formed.

Derivatives

  • chondritic

  • adjective
    • The answer comes from a fourth line of evidence on the deep-Earth composition: cosmic abundances of the elements deduced from analyses of chondritic meteorites and the solar photosphere.
      Example sentencesExamples
      • Planetary geologists, however, know little about the lower mantle of the Moon, so no one knows whether it is chondritic.
      • Achondrites, on the other hand, come from chondritic parent bodies that have been heated to the melting point, destroying their chondrules and separating heavy and light minerals into a core and mantle.
      • The linear trend defined by the Intermediate Unit has a Zr / Hf ratio of 38, which is within chondritic values and it is similar to mid-ocean ridge basalt and continental material.
      • For Toutatis, Ostro hopes to find a higher density, because if the density he finds is high enough, it would be possible to exclude chondritic compositions and say for sure that Toutatis is a stony-iron object.

Origin

Mid 19th century: from Greek khondros 'granule' + -ite1.

Definition of chondrite in US English:

chondrite

nounˈkändrītˈkɑndraɪt
  • A stony meteorite containing small mineral granules (chondrules).

    球粒陨石

    Example sentencesExamples
    • Known as the Ningqiang carbonaceous chondrite, the primitive meteorite is a space relic that formed shortly after the solar system's creation.
    • My research has largely been in the chemistry of how the particular components of chondrites, very primitive meteorites, actually formed in the solar nebula.
    • Carbonaceous chondrites are representative of the early material of the solar system, very primitive material, so it's the closest we get to the stuff from which the solar system evolved.
    • They also make up well over half of the organic compounds in the most common type of meteorites, called carbonaceous chondrites, which have rained down on the Earth along with other cosmic dust ever since the planet formed.
    • If the impact object was a stony carbonaceous chondrite there would be silicates all over the impact site.

Origin

Mid 19th century: from Greek khondros ‘granule’ + -ite.

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更新时间:2024/12/27 19:49:01