Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush
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...
Main Authors: | , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Nature Research
2019
|
Subjects: | |
Online Access: | https://eprints.whiterose.ac.uk/153905/ https://eprints.whiterose.ac.uk/153905/1/s41467-019-12694-5.pdf |
id |
ftleedsuniv:oai:eprints.whiterose.ac.uk:153905 |
---|---|
record_format |
openpolar |
spelling |
ftleedsuniv:oai:eprints.whiterose.ac.uk:153905 2023-05-15T16:49:15+02:00 Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush Honour, VC Holness, MB Charlier, B Piazolo, SC Namur, O Prosa, TJ Martin, I Helz, RT Maclennan, J Jean, MM 2019-12 text https://eprints.whiterose.ac.uk/153905/ https://eprints.whiterose.ac.uk/153905/1/s41467-019-12694-5.pdf en eng Nature Research https://eprints.whiterose.ac.uk/153905/1/s41467-019-12694-5.pdf Honour, VC, Holness, MB, Charlier, B et al. (7 more authors) (2019) Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush. Nature Communications, 10 (1). 4821. cc_by_4 CC-BY Article NonPeerReviewed 2019 ftleedsuniv 2023-01-30T22:24:39Z 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 White Rose Research Online (Universities of Leeds, Sheffield & York) |
institution |
Open Polar |
collection |
White Rose Research Online (Universities of Leeds, Sheffield & York) |
op_collection_id |
ftleedsuniv |
language |
English |
description |
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, VC Holness, MB Charlier, B Piazolo, SC Namur, O Prosa, TJ Martin, I Helz, RT Maclennan, J Jean, MM |
spellingShingle |
Honour, VC Holness, MB Charlier, B Piazolo, SC Namur, O Prosa, TJ Martin, I Helz, RT Maclennan, J Jean, MM Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush |
author_facet |
Honour, VC Holness, MB Charlier, B Piazolo, SC Namur, O Prosa, TJ Martin, I Helz, RT Maclennan, J Jean, MM |
author_sort |
Honour, VC |
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 Research |
publishDate |
2019 |
url |
https://eprints.whiterose.ac.uk/153905/ https://eprints.whiterose.ac.uk/153905/1/s41467-019-12694-5.pdf |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://eprints.whiterose.ac.uk/153905/1/s41467-019-12694-5.pdf Honour, VC, Holness, MB, Charlier, B et al. (7 more authors) (2019) Compositional boundary layers trigger liquid unmixing in a basaltic crystal mush. Nature Communications, 10 (1). 4821. |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
_version_ |
1766039401601695744 |