Potassium isotope heterogeneity in the early solar system controlled by extensive evaporation and partial recondensation

HIGHLIGHTS

• who: Yan Hu from the Potassium isotopic analyses Chemical and analytical work was carried out at the Institut de Physique du Globe de Paris (IPGP)Given that the upper continental crust contains more than, ppm, terrestrial contamination of angrites is inevitable. Radiogenic dating on angrites has shown that terrestrial contamination cannot be removed entirely even after aggressive acid washing14, and this procedure may induce mineral dissolution17. Since mineral dissolution would result in large K isotope fractionation, we did not leach our angrite samples with acids. As an alternative, we cleaned fresh chips of angrite samples with Milli . . .
  

   

  

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