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New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions
Titanium diffusion profiles in quartz crystals are widely applied to constrain the duration of magmatic processes. However, experimentally determined Ti diffusion coefficients in quartz diverge by three orders of magnitude. To rectify this problem we derive Ti diffusion coefficients from natural qua...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10352339/ https://www.ncbi.nlm.nih.gov/pubmed/37460528 http://dx.doi.org/10.1038/s41467-023-39912-5 |
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author | Audétat, Andreas Schmitt, Axel K. Njul, Raphael Saalfeld, Megan Borisova, Anastassia Lu, Yongjun |
author_facet | Audétat, Andreas Schmitt, Axel K. Njul, Raphael Saalfeld, Megan Borisova, Anastassia Lu, Yongjun |
author_sort | Audétat, Andreas |
collection | PubMed |
description | Titanium diffusion profiles in quartz crystals are widely applied to constrain the duration of magmatic processes. However, experimentally determined Ti diffusion coefficients in quartz diverge by three orders of magnitude. To rectify this problem we derive Ti diffusion coefficients from natural quartz phenocrysts from the 1991 eruption at Mt. Pinatubo, by combining U-Th ages of small (15–40 µm long) zircon inclusions with Ti diffusion profiles measured at nearby growth zone contacts in the same quartz crystals. Application of the obtained data to quartz crystals with Ti-rich rims from thirteen silicic volcanic tuffs worldwide suggests that the magmas erupted years to thousands of years after magma chamber rejuvenation, with the priming time increasing with magma volume and decreasing temperature. Here we show that the time scales involved in the generation of silicic volcanic eruptions are much longer than originally thought. |
format | Online Article Text |
id | pubmed-10352339 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-103523392023-07-19 New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions Audétat, Andreas Schmitt, Axel K. Njul, Raphael Saalfeld, Megan Borisova, Anastassia Lu, Yongjun Nat Commun Article Titanium diffusion profiles in quartz crystals are widely applied to constrain the duration of magmatic processes. However, experimentally determined Ti diffusion coefficients in quartz diverge by three orders of magnitude. To rectify this problem we derive Ti diffusion coefficients from natural quartz phenocrysts from the 1991 eruption at Mt. Pinatubo, by combining U-Th ages of small (15–40 µm long) zircon inclusions with Ti diffusion profiles measured at nearby growth zone contacts in the same quartz crystals. Application of the obtained data to quartz crystals with Ti-rich rims from thirteen silicic volcanic tuffs worldwide suggests that the magmas erupted years to thousands of years after magma chamber rejuvenation, with the priming time increasing with magma volume and decreasing temperature. Here we show that the time scales involved in the generation of silicic volcanic eruptions are much longer than originally thought. Nature Publishing Group UK 2023-07-17 /pmc/articles/PMC10352339/ /pubmed/37460528 http://dx.doi.org/10.1038/s41467-023-39912-5 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Audétat, Andreas Schmitt, Axel K. Njul, Raphael Saalfeld, Megan Borisova, Anastassia Lu, Yongjun New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions |
title | New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions |
title_full | New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions |
title_fullStr | New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions |
title_full_unstemmed | New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions |
title_short | New constraints on Ti diffusion in quartz and the priming of silicic volcanic eruptions |
title_sort | new constraints on ti diffusion in quartz and the priming of silicic volcanic eruptions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10352339/ https://www.ncbi.nlm.nih.gov/pubmed/37460528 http://dx.doi.org/10.1038/s41467-023-39912-5 |
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