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OH defect contents in quartz in a granitic system at 1–5 kbar
Quartz is able to incorporate trace elements (e.g., H, Li, Al, B) depending on the formation conditions (P, T, and chemical system). Consequently, quartz can be used as a tracer for petrogenetic information of silicic plutonic bodies. In this experimental study, we provide the first data set on the...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6848238/ https://www.ncbi.nlm.nih.gov/pubmed/31806914 http://dx.doi.org/10.1007/s00410-019-1632-0 |
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author | Potrafke, Alexander Stalder, Roland Schmidt, Burkhard C. Ludwig, Thomas |
author_facet | Potrafke, Alexander Stalder, Roland Schmidt, Burkhard C. Ludwig, Thomas |
author_sort | Potrafke, Alexander |
collection | PubMed |
description | Quartz is able to incorporate trace elements (e.g., H, Li, Al, B) depending on the formation conditions (P, T, and chemical system). Consequently, quartz can be used as a tracer for petrogenetic information of silicic plutonic bodies. In this experimental study, we provide the first data set on the OH defect incorporation in quartz from granites over a pressure/temperature range realistic for the emplacement of granitic melts in the upper crust. Piston cylinder and internally heated pressure vessel synthesis experiments were performed in a water-saturated granitic system at 1–5 kbar and 700–950 °C. Crystals from successful runs were analysed by secondary ion mass spectrometry (SIMS) and Fourier transform infrared (FTIR) spectroscopy, and their homogeneity was verified by FTIR imaging. IR absorption bands can be assigned to specific OH defects and analysed qualitatively and quantitatively and reveal that (1) the AlOH band triplet at 3310, 3378 and 3430 cm(−1) is the dominating absorption feature in all spectra, (2) no simple trend of total OH defect incorporation with pressure can be observed, (3) the LiOH defect band at 3470–3480 cm(−1) increases strongly in a narrow pressure interval from 4 kbar (220 µg/g H(2)O) to 4.5 kbar (500 µg/g H(2)O), and declines equally strong towards 5 kbar (180 µg/g H(2)O). Proton incorporation is charge balanced according to the equation H(+) + A(+) + P(5+) = M(3+) + B(3+), with A(+) = alkali ions and M(3+) = trivalent metal ions. |
format | Online Article Text |
id | pubmed-6848238 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-68482382019-12-03 OH defect contents in quartz in a granitic system at 1–5 kbar Potrafke, Alexander Stalder, Roland Schmidt, Burkhard C. Ludwig, Thomas Contrib Mineral Petrol Original Paper Quartz is able to incorporate trace elements (e.g., H, Li, Al, B) depending on the formation conditions (P, T, and chemical system). Consequently, quartz can be used as a tracer for petrogenetic information of silicic plutonic bodies. In this experimental study, we provide the first data set on the OH defect incorporation in quartz from granites over a pressure/temperature range realistic for the emplacement of granitic melts in the upper crust. Piston cylinder and internally heated pressure vessel synthesis experiments were performed in a water-saturated granitic system at 1–5 kbar and 700–950 °C. Crystals from successful runs were analysed by secondary ion mass spectrometry (SIMS) and Fourier transform infrared (FTIR) spectroscopy, and their homogeneity was verified by FTIR imaging. IR absorption bands can be assigned to specific OH defects and analysed qualitatively and quantitatively and reveal that (1) the AlOH band triplet at 3310, 3378 and 3430 cm(−1) is the dominating absorption feature in all spectra, (2) no simple trend of total OH defect incorporation with pressure can be observed, (3) the LiOH defect band at 3470–3480 cm(−1) increases strongly in a narrow pressure interval from 4 kbar (220 µg/g H(2)O) to 4.5 kbar (500 µg/g H(2)O), and declines equally strong towards 5 kbar (180 µg/g H(2)O). Proton incorporation is charge balanced according to the equation H(+) + A(+) + P(5+) = M(3+) + B(3+), with A(+) = alkali ions and M(3+) = trivalent metal ions. Springer Berlin Heidelberg 2019-11-11 2019 /pmc/articles/PMC6848238/ /pubmed/31806914 http://dx.doi.org/10.1007/s00410-019-1632-0 Text en © The Author(s) 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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. |
spellingShingle | Original Paper Potrafke, Alexander Stalder, Roland Schmidt, Burkhard C. Ludwig, Thomas OH defect contents in quartz in a granitic system at 1–5 kbar |
title | OH defect contents in quartz in a granitic system at 1–5 kbar |
title_full | OH defect contents in quartz in a granitic system at 1–5 kbar |
title_fullStr | OH defect contents in quartz in a granitic system at 1–5 kbar |
title_full_unstemmed | OH defect contents in quartz in a granitic system at 1–5 kbar |
title_short | OH defect contents in quartz in a granitic system at 1–5 kbar |
title_sort | oh defect contents in quartz in a granitic system at 1–5 kbar |
topic | Original Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6848238/ https://www.ncbi.nlm.nih.gov/pubmed/31806914 http://dx.doi.org/10.1007/s00410-019-1632-0 |
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