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The niobium and tantalum concentration in the mantle constrains the composition of Earth’s primordial magma ocean
The bulk silicate Earth (BSE), and all its sampleable reservoirs, have a subchondritic niobium-to-tantalum ratio (Nb/Ta). Because both elements are refractory, and Nb/Ta is fairly constant across chondrite groups, this can only be explained by a preferential sequestration of Nb relative to Ta in a h...
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| Publicado en: | Proc Natl Acad Sci U S A |
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| Main Authors: | , , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado: |
National Academy of Sciences
2020
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| Assuntos: | |
| Acceso en liña: | https://ncbi.nlm.nih.gov/pmc/articles/PMC7668002/ https://ncbi.nlm.nih.gov/pubmed/33106398 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.2007982117 |
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