Ancient helium and tungsten isotopic signatures preserved in mantle domains least modified by crustal recycling

Rare high-(3)He/(4)He signatures in ocean island basalts (OIB) erupted at volcanic hotspots derive from deep-seated domains preserved in Earth’s interior. Only high-(3)He/(4)He OIB exhibit anomalous (182)W—an isotopic signature inherited during the earliest history of Earth—supporting an ancient ori...

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Pubblicato in:Proc Natl Acad Sci U S A
Autori principali: Jackson, Matthew G., Blichert-Toft, Janne, Halldórsson, Saemundur A., Mundl-Petermeier, Andrea, Bizimis, Michael, Kurz, Mark D., Price, Allison A., Harðardóttir, Sunna, Willhite, Lori N., Breddam, Kresten, Becker, Thorsten W., Fischer, Rebecca A.
Natura: Artigo
Lingua:Inglês
Pubblicazione: National Academy of Sciences 2020
Soggetti:
Physical Sciences
Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC7733831/
https://ncbi.nlm.nih.gov/pubmed/33229590
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.2009663117
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