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Intraplate volcanism triggered by bursts in slab flux
Long-lived, widespread intraplate volcanism without age progression is one of the most controversial features of plate tectonics. Previously proposed edge-driven convection, asthenospheric shear, and lithospheric detachment fail to explain the ~5000-km-wide intraplate volcanic province from eastern...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7744089/ https://www.ncbi.nlm.nih.gov/pubmed/33328233 http://dx.doi.org/10.1126/sciadv.abd0953 |
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author | Mather, Ben R. Müller, R. Dietmar Seton, Maria Ruttor, Saskia Nebel, Oliver Mortimer, Nick |
author_facet | Mather, Ben R. Müller, R. Dietmar Seton, Maria Ruttor, Saskia Nebel, Oliver Mortimer, Nick |
author_sort | Mather, Ben R. |
collection | PubMed |
description | Long-lived, widespread intraplate volcanism without age progression is one of the most controversial features of plate tectonics. Previously proposed edge-driven convection, asthenospheric shear, and lithospheric detachment fail to explain the ~5000-km-wide intraplate volcanic province from eastern Australia to Zealandia. We model the subducted slab volume over 100 million years and find that slab flux drives volcanic eruption frequency, indicating stimulation of an enriched mantle transition zone reservoir. Volcanic isotope geochemistry allows us to distinguish a high-μ (HIMU) reservoir [>1 billion years (Ga) old] in the slab-poor south, from a northern EM1/EM2 reservoir, reflecting a more recent voluminous influx of oceanic lithosphere into the mantle transition zone. We provide a unified theory linking plate boundary and slab volume reconstructions to upper mantle reservoirs and intraplate volcano geochemistry. |
format | Online Article Text |
id | pubmed-7744089 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-77440892021-01-04 Intraplate volcanism triggered by bursts in slab flux Mather, Ben R. Müller, R. Dietmar Seton, Maria Ruttor, Saskia Nebel, Oliver Mortimer, Nick Sci Adv Research Articles Long-lived, widespread intraplate volcanism without age progression is one of the most controversial features of plate tectonics. Previously proposed edge-driven convection, asthenospheric shear, and lithospheric detachment fail to explain the ~5000-km-wide intraplate volcanic province from eastern Australia to Zealandia. We model the subducted slab volume over 100 million years and find that slab flux drives volcanic eruption frequency, indicating stimulation of an enriched mantle transition zone reservoir. Volcanic isotope geochemistry allows us to distinguish a high-μ (HIMU) reservoir [>1 billion years (Ga) old] in the slab-poor south, from a northern EM1/EM2 reservoir, reflecting a more recent voluminous influx of oceanic lithosphere into the mantle transition zone. We provide a unified theory linking plate boundary and slab volume reconstructions to upper mantle reservoirs and intraplate volcano geochemistry. American Association for the Advancement of Science 2020-12-16 /pmc/articles/PMC7744089/ /pubmed/33328233 http://dx.doi.org/10.1126/sciadv.abd0953 Text en Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/ https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Mather, Ben R. Müller, R. Dietmar Seton, Maria Ruttor, Saskia Nebel, Oliver Mortimer, Nick Intraplate volcanism triggered by bursts in slab flux |
title | Intraplate volcanism triggered by bursts in slab flux |
title_full | Intraplate volcanism triggered by bursts in slab flux |
title_fullStr | Intraplate volcanism triggered by bursts in slab flux |
title_full_unstemmed | Intraplate volcanism triggered by bursts in slab flux |
title_short | Intraplate volcanism triggered by bursts in slab flux |
title_sort | intraplate volcanism triggered by bursts in slab flux |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7744089/ https://www.ncbi.nlm.nih.gov/pubmed/33328233 http://dx.doi.org/10.1126/sciadv.abd0953 |
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