Krypton in today's atmosphere is somewhat heavier than solar krypton, and the krypton embedded in meteorites known as carbonaceouschondrites is even heavier than that.
Carbonaceouschondrites meteorites contain abundant organic materials as they have not been melted, and much of their original chemical composition remains intact.
碳粒陨星陨石包含大量的有机物，由于它们没被熔化，原来化学成分的大部分仍然完整无缺。
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The lithophile elements in ordinary and carbonaceous chondrite groups may display either chalcophile or siderophile nature in enstatite chondrites.