| Resumo: |
Evaporation-condensation, a significant process, happens during impact events. Of special interest, this process can lead to significant isotope fractionations e.g. C, O, Mg, Si, S, Fe,and Cr.The nature of mass-independent fractionation of sulphur of the sulfur isotopes is that the fractionation of isotope is still mass dependent during impacts, which means the measured nonzero 
⊿33S values of Archean sulfide- and sulfate-bearing minerals indicate that their different condensation sequences.
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