A dry ancient plume mantle from noble gas isotopes
2022; National Academy of Sciences; Volume: 119; Issue: 29 Linguagem: Inglês
10.1073/pnas.2201815119
ISSN1091-6490
Autores Tópico(s)Geology and Paleoclimatology Research
ResumoPrimordial volatiles were delivered to terrestrial reservoirs during Earth's accretion, and the mantle plume source is thought to have retained a greater proportion of primordial volatiles compared with the upper mantle. This study shows that mantle He, Ne, and Xe isotopes require that the plume mantle had low concentrations of volatiles like Xe and H
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