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One possible mechanism to explain the observed variability of the short- lived [superscript 146]Sm → [superscript 142]Nd and [superscript 182]Hf → [superscript 182]W systems recorded in some early Earth rocks

One possible mechanism to explain the observed variability of the short- lived [superscript 146]Sm → [superscript 142]Nd and [superscript 182]Hf → [superscript 182]W systems recorded in some early Earth rocks is crystal-liquid fractionation and overturn in an early magma ocean. This process could also potentially explain the deviation between the [superscript 142]Nd isotopic composition of the accessible Earth and the chondritic average.

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    Date Created
    • 2014-12-15
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  • Text
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    Identifier
    • Digital object identifier: 10.1016/j.epsl.2014.10.025
    • Identifier Type
      International standard serial number
      Identifier Value
      0012-821X
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    Brown, Stephanie M., Elkins-Tanton, Linda T., & Walker, Richard J. (2014). Effects of magma ocean crystallization and overturn on the development of Nd-142 and W-182 isotopic heterogeneities in the primordial mantle. EARTH AND PLANETARY SCIENCE LETTERS, 408, 319-330. http://dx.doi.org/10.1016/j.epsl.2014.10.025

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