Cosmochemical Estimates of Mantle Composition

H. Palme, H. O'Neill

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The composition of the primitive mantle derived here shows that Earth was assembled from material that shows many of the same chemical fractionation processes as chondritic meteorites. These processes occurred at the initial stage of the solar system formation, under conditions thought to be present in the solar nebula. But the stable isotope record excludes chondritic meteorites as the 'building blocks' of Earth. Meteorites formed in local environments separated from that part of the inner solar system where much of the material forming the terrestrial planets was sourced.

Original languageEnglish
Title of host publicationThe Mantle and Core
Number of pages39
ISBN (Print)9780080983004
Publication statusPublished - Nov 2013
Externally publishedYes


  • Chondritic meteorites
  • Collisional erosion
  • Depletion of volatile elements
  • Earth's bulk composition
  • Earth's primitive mantle
  • Late veneer
  • Stable isotopes in Earth and meteorites

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