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Tracking the origin of ultralow velocity zones at the base of Earth's mantle
Origins of the ultralow velocity zones may be classified by their velocity-reduction-ratio, R = δ lnVS/δ lnVP, which ranges from 1.2–1.5 for iron oxides or iron-enriched magnesium oxides, 1.6–2.0 for pyrite-type FeO(2)H(x), 2.3–2.8 for the eutectic melt of Fe + C, 2.7–3.1 for partial melt of (Mg, Fe...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Oxford University Press
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8288332/ https://www.ncbi.nlm.nih.gov/pubmed/34691621 http://dx.doi.org/10.1093/nsr/nwaa308 |
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author | Chen, Jiuhua |
author_facet | Chen, Jiuhua |
author_sort | Chen, Jiuhua |
collection | PubMed |
description | Origins of the ultralow velocity zones may be classified by their velocity-reduction-ratio, R = δ lnVS/δ lnVP, which ranges from 1.2–1.5 for iron oxides or iron-enriched magnesium oxides, 1.6–2.0 for pyrite-type FeO(2)H(x), 2.3–2.8 for the eutectic melt of Fe + C, 2.7–3.1 for partial melt of (Mg, Fe)SiO(3) + Fe to 3.5–4.5 for iron-rich post-perovskite. |
format | Online Article Text |
id | pubmed-8288332 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-82883322021-10-21 Tracking the origin of ultralow velocity zones at the base of Earth's mantle Chen, Jiuhua Natl Sci Rev EARTH SCIENCES Origins of the ultralow velocity zones may be classified by their velocity-reduction-ratio, R = δ lnVS/δ lnVP, which ranges from 1.2–1.5 for iron oxides or iron-enriched magnesium oxides, 1.6–2.0 for pyrite-type FeO(2)H(x), 2.3–2.8 for the eutectic melt of Fe + C, 2.7–3.1 for partial melt of (Mg, Fe)SiO(3) + Fe to 3.5–4.5 for iron-rich post-perovskite. Oxford University Press 2021-01-02 /pmc/articles/PMC8288332/ /pubmed/34691621 http://dx.doi.org/10.1093/nsr/nwaa308 Text en © The Author(s) 2021. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | EARTH SCIENCES Chen, Jiuhua Tracking the origin of ultralow velocity zones at the base of Earth's mantle |
title | Tracking the origin of ultralow velocity zones at the base of Earth's mantle |
title_full | Tracking the origin of ultralow velocity zones at the base of Earth's mantle |
title_fullStr | Tracking the origin of ultralow velocity zones at the base of Earth's mantle |
title_full_unstemmed | Tracking the origin of ultralow velocity zones at the base of Earth's mantle |
title_short | Tracking the origin of ultralow velocity zones at the base of Earth's mantle |
title_sort | tracking the origin of ultralow velocity zones at the base of earth's mantle |
topic | EARTH SCIENCES |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8288332/ https://www.ncbi.nlm.nih.gov/pubmed/34691621 http://dx.doi.org/10.1093/nsr/nwaa308 |
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