Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland
Mafic magmas may experience multiple stages of sulfide saturation and resorption during ascent and differentiation. Quenched tephra erupted during the 2014–15 Holuhraun eruption preserve abundant evidence for sulfide resorption, offering a rare opportunity to explore the sulfide life cycle from nucl...
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ftopenunivgb:oai:oro.open.ac.uk:97012 2024-05-12T08:05:53+00:00 Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland Nicholson, Emma J. Wieser, Penny E. Hartley, Margaret E. Jenner, Frances E. Kunz, Barbara E. Ilyinskaya, Evgenia Thordarson, Thorvaldur Edmonds, Marie 2024 text/xml application/pdf https://oro.open.ac.uk/97012/ https://oro.open.ac.uk/97012/1/43247_2024_Article_1249_nlm.xml https://oro.open.ac.uk/97012/3/97012.pdf https://doi.org/10.1038/s43247-024-01249-2 en eng Nature Publishing Group UK https://oro.open.ac.uk/97012/1/43247_2024_Article_1249_nlm.xml https://oro.open.ac.uk/97012/3/97012.pdf Nicholson, Emma J.; Wieser, Penny E.; Hartley, Margaret E.; Jenner, Frances E. <https://oro.open.ac.uk/view/person/fej25.html>; Kunz, Barbara E. <https://oro.open.ac.uk/view/person/bek36.html>; Ilyinskaya, Evgenia; Thordarson, Thorvaldur and Edmonds, Marie (2024). Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland. Communications Earth & Environment, 5, article no. 164. doi:10.1038/s43247-024-01249-2 cc_by_nc_nd_4 cc_by_4 Journal Item PeerReviewed 2024 ftopenunivgb https://doi.org/10.1038/s43247-024-01249-2 2024-04-17T14:00:16Z Mafic magmas may experience multiple stages of sulfide saturation and resorption during ascent and differentiation. Quenched tephra erupted during the 2014–15 Holuhraun eruption preserve abundant evidence for sulfide resorption, offering a rare opportunity to explore the sulfide life cycle from nucleation to resorption. Specifically, we combine detailed textural and chemical analyses of sulfides and silicate melts with geochemical models of sulfide saturation and degassing. This integrative approach demonstrates that sulfides began nucleating in melts with ~8 wt% MgO, persisted during fractionation to 6.5 wt% MgO, before resorbing heterogeneously in response to sulfur degassing. Sulfides are preserved preferentially in confined geometries within and between crystals, suggesting that kinetic effects impeded sulfur loss from the melt and maintained local sulfide saturation on eruption. The proportion of sulfides exhibiting breakdown textures increases throughout the eruption, coincident with decreasing magma discharge, indicating that sulfide resorption and degassing are kinetically limited. Sulfides likely modulate the emission of sulfur and chalcophile elements to the atmosphere and surface environment, with implications for assessing the environmental impacts and societal hazards of basaltic fissure eruptions. Article in Journal/Newspaper Iceland The Open University: Open Research Online (ORO) Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) Communications Earth & Environment 5 1 |
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Open Polar |
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The Open University: Open Research Online (ORO) |
op_collection_id |
ftopenunivgb |
language |
English |
description |
Mafic magmas may experience multiple stages of sulfide saturation and resorption during ascent and differentiation. Quenched tephra erupted during the 2014–15 Holuhraun eruption preserve abundant evidence for sulfide resorption, offering a rare opportunity to explore the sulfide life cycle from nucleation to resorption. Specifically, we combine detailed textural and chemical analyses of sulfides and silicate melts with geochemical models of sulfide saturation and degassing. This integrative approach demonstrates that sulfides began nucleating in melts with ~8 wt% MgO, persisted during fractionation to 6.5 wt% MgO, before resorbing heterogeneously in response to sulfur degassing. Sulfides are preserved preferentially in confined geometries within and between crystals, suggesting that kinetic effects impeded sulfur loss from the melt and maintained local sulfide saturation on eruption. The proportion of sulfides exhibiting breakdown textures increases throughout the eruption, coincident with decreasing magma discharge, indicating that sulfide resorption and degassing are kinetically limited. Sulfides likely modulate the emission of sulfur and chalcophile elements to the atmosphere and surface environment, with implications for assessing the environmental impacts and societal hazards of basaltic fissure eruptions. |
format |
Article in Journal/Newspaper |
author |
Nicholson, Emma J. Wieser, Penny E. Hartley, Margaret E. Jenner, Frances E. Kunz, Barbara E. Ilyinskaya, Evgenia Thordarson, Thorvaldur Edmonds, Marie |
spellingShingle |
Nicholson, Emma J. Wieser, Penny E. Hartley, Margaret E. Jenner, Frances E. Kunz, Barbara E. Ilyinskaya, Evgenia Thordarson, Thorvaldur Edmonds, Marie Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland |
author_facet |
Nicholson, Emma J. Wieser, Penny E. Hartley, Margaret E. Jenner, Frances E. Kunz, Barbara E. Ilyinskaya, Evgenia Thordarson, Thorvaldur Edmonds, Marie |
author_sort |
Nicholson, Emma J. |
title |
Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland |
title_short |
Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland |
title_full |
Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland |
title_fullStr |
Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland |
title_full_unstemmed |
Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland |
title_sort |
sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 holuhraun eruption, iceland |
publisher |
Nature Publishing Group UK |
publishDate |
2024 |
url |
https://oro.open.ac.uk/97012/ https://oro.open.ac.uk/97012/1/43247_2024_Article_1249_nlm.xml https://oro.open.ac.uk/97012/3/97012.pdf https://doi.org/10.1038/s43247-024-01249-2 |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) |
geographic |
Holuhraun |
geographic_facet |
Holuhraun |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://oro.open.ac.uk/97012/1/43247_2024_Article_1249_nlm.xml https://oro.open.ac.uk/97012/3/97012.pdf Nicholson, Emma J.; Wieser, Penny E.; Hartley, Margaret E.; Jenner, Frances E. <https://oro.open.ac.uk/view/person/fej25.html>; Kunz, Barbara E. <https://oro.open.ac.uk/view/person/bek36.html>; Ilyinskaya, Evgenia; Thordarson, Thorvaldur and Edmonds, Marie (2024). Sulfide saturation and resorption modulates sulfur and metal availability during the 2014–15 Holuhraun eruption, Iceland. Communications Earth & Environment, 5, article no. 164. doi:10.1038/s43247-024-01249-2 |
op_rights |
cc_by_nc_nd_4 cc_by_4 |
op_doi |
https://doi.org/10.1038/s43247-024-01249-2 |
container_title |
Communications Earth & Environment |
container_volume |
5 |
container_issue |
1 |
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