Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush
Abstract: The separation of immiscible liquids has significant implications for magma evolution and the formation of magmatic ore deposits. We combine high-resolution imaging and electron probe microanalysis with the first use of atom probe tomography on tholeiitic basaltic glass from Hawaii, the Sn...
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ftunivcam:oai:www.repository.cam.ac.uk:1810/311817 2023-07-30T04:04:24+02:00 Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush Honour, Victoria C. Holness, Marian B. Charlier, Bernard Piazolo, Sandra C. Namur, Olivier Prosa, Ty J. Martin, Isabelle Helz, Rosalind T. Maclennan, John Jean, Marlon M. 2020-10-22T16:11:49Z application/zip application/pdf text/xml https://doi.org/10.17863/CAM.58908 https://www.repository.cam.ac.uk/handle/1810/311817 en eng Nature Publishing Group UK Nature Communications doi:10.17863/CAM.58908 https://www.repository.cam.ac.uk/handle/1810/311817 Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ Article /704/2151/209 /704/2151/213 /704/2151/431 /704/2151/598 /147 /147/28 /147/135 /147/136 /147/3 /132 /123 Article 2020 ftunivcam https://doi.org/10.17863/CAM.58908 2023-07-10T21:30:30Z Abstract: The separation of immiscible liquids has significant implications for magma evolution and the formation of magmatic ore deposits. We combine high-resolution imaging and electron probe microanalysis with the first use of atom probe tomography on tholeiitic basaltic glass from Hawaii, the Snake River Plain, and Iceland, to investigate the onset of unmixing of basaltic liquids into Fe-rich and Si-rich conjugates. We examine the relationships between unmixing and crystal growth, and the evolution of a nanoemulsion in a crystal mush. We identify the previously unrecognised role played by compositional boundary layers in promoting unmixing around growing crystals at melt-crystal interfaces. Our findings have important implications for the formation of immiscible liquid in a crystal mush, the interpretations of compositional zoning in crystals, and the role of liquid immiscibility in controlling magma physical properties. Article in Journal/Newspaper Iceland Apollo - University of Cambridge Repository |
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Open Polar |
collection |
Apollo - University of Cambridge Repository |
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ftunivcam |
language |
English |
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Article /704/2151/209 /704/2151/213 /704/2151/431 /704/2151/598 /147 /147/28 /147/135 /147/136 /147/3 /132 /123 |
spellingShingle |
Article /704/2151/209 /704/2151/213 /704/2151/431 /704/2151/598 /147 /147/28 /147/135 /147/136 /147/3 /132 /123 Honour, Victoria C. Holness, Marian B. Charlier, Bernard Piazolo, Sandra C. Namur, Olivier Prosa, Ty J. Martin, Isabelle Helz, Rosalind T. Maclennan, John Jean, Marlon M. Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush |
topic_facet |
Article /704/2151/209 /704/2151/213 /704/2151/431 /704/2151/598 /147 /147/28 /147/135 /147/136 /147/3 /132 /123 |
description |
Abstract: The separation of immiscible liquids has significant implications for magma evolution and the formation of magmatic ore deposits. We combine high-resolution imaging and electron probe microanalysis with the first use of atom probe tomography on tholeiitic basaltic glass from Hawaii, the Snake River Plain, and Iceland, to investigate the onset of unmixing of basaltic liquids into Fe-rich and Si-rich conjugates. We examine the relationships between unmixing and crystal growth, and the evolution of a nanoemulsion in a crystal mush. We identify the previously unrecognised role played by compositional boundary layers in promoting unmixing around growing crystals at melt-crystal interfaces. Our findings have important implications for the formation of immiscible liquid in a crystal mush, the interpretations of compositional zoning in crystals, and the role of liquid immiscibility in controlling magma physical properties. |
format |
Article in Journal/Newspaper |
author |
Honour, Victoria C. Holness, Marian B. Charlier, Bernard Piazolo, Sandra C. Namur, Olivier Prosa, Ty J. Martin, Isabelle Helz, Rosalind T. Maclennan, John Jean, Marlon M. |
author_facet |
Honour, Victoria C. Holness, Marian B. Charlier, Bernard Piazolo, Sandra C. Namur, Olivier Prosa, Ty J. Martin, Isabelle Helz, Rosalind T. Maclennan, John Jean, Marlon M. |
author_sort |
Honour, Victoria C. |
title |
Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush |
title_short |
Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush |
title_full |
Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush |
title_fullStr |
Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush |
title_full_unstemmed |
Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush |
title_sort |
compositional boundary layers trigger liquid unmixing in a basaltic crystal mush |
publisher |
Nature Publishing Group UK |
publishDate |
2020 |
url |
https://doi.org/10.17863/CAM.58908 https://www.repository.cam.ac.uk/handle/1810/311817 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
doi:10.17863/CAM.58908 https://www.repository.cam.ac.uk/handle/1810/311817 |
op_rights |
Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.17863/CAM.58908 |
_version_ |
1772815827763986432 |