Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth
Earth’s surface and mantle sulphur reservoirs are connected via subduction, crustal recycling and volcanism. Although oceanic hotspot lavas currently provide the best constraints on the deep sulphur cycle, their restricted age range (<200 Ma) means they cannot reveal temporal variations in crusta...
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ftuglasgow:oai:eprints.gla.ac.uk:197482 2023-12-17T10:30:59+01:00 Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth Hutchison, William Babiel, Rainer J. Finch, Adrian A. Marks, Michael A. W. Markl, Gregor Boyce, Adrian J. Stüeken, Eva E. Friis, Henrik Borst, Anouk M. Horsburgh, Nicola J. 2019-09-16 text https://eprints.gla.ac.uk/197482/ https://eprints.gla.ac.uk/197482/1/197482.pdf en eng Nature Research https://eprints.gla.ac.uk/197482/1/197482.pdf Hutchison, W., Babiel, R. J., Finch, A. A., Marks, M. A. W., Markl, G., Boyce, A. J. <http://eprints.gla.ac.uk/view/author/1919.html> , Stüeken, E. E., Friis, H., Borst, A. M. and Horsburgh, N. J. (2019) Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth. Nature Communications <https://eprints.gla.ac.uk/view/journal_volume/Nature_Communications.html>, 10, 4208. (doi:10.1038/s41467-019-12218-1 <https://doi.org/10.1038/s41467-019-12218-1>) (PMID:31527587) (PMCID:PMC6746797) cc_by_4 Articles PeerReviewed 2019 ftuglasgow https://doi.org/10.1038/s41467-019-12218-1 2023-11-23T23:09:35Z Earth’s surface and mantle sulphur reservoirs are connected via subduction, crustal recycling and volcanism. Although oceanic hotspot lavas currently provide the best constraints on the deep sulphur cycle, their restricted age range (<200 Ma) means they cannot reveal temporal variations in crustal recycling over Earth history. Sulphur-rich alkaline magmas offer the solution because they are associated with recycled sources (i.e. metasomatized lithospheric mantle and plumes) and, crucially, are found throughout the geological record. Here, we present a detailed study of sulphur isotope fractionation in a Mesoproterozoic alkaline province in Greenland and demonstrate that an enriched subduction-influenced source (δ34S of +1 to +5‰) can be reconstructed. A global δ34S compilation reveals secular variation in alkaline magma sources which support changes in the composition of the lithospheric mantle and/or Ga timescales for deep crustal recycling. Thus, alkaline magmas represent a powerful yet underutilized repository for interrogating crustal recycling through geological time. Article in Journal/Newspaper Greenland University of Glasgow: Enlighten - Publications Greenland Nature Communications 10 1 |
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University of Glasgow: Enlighten - Publications |
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English |
description |
Earth’s surface and mantle sulphur reservoirs are connected via subduction, crustal recycling and volcanism. Although oceanic hotspot lavas currently provide the best constraints on the deep sulphur cycle, their restricted age range (<200 Ma) means they cannot reveal temporal variations in crustal recycling over Earth history. Sulphur-rich alkaline magmas offer the solution because they are associated with recycled sources (i.e. metasomatized lithospheric mantle and plumes) and, crucially, are found throughout the geological record. Here, we present a detailed study of sulphur isotope fractionation in a Mesoproterozoic alkaline province in Greenland and demonstrate that an enriched subduction-influenced source (δ34S of +1 to +5‰) can be reconstructed. A global δ34S compilation reveals secular variation in alkaline magma sources which support changes in the composition of the lithospheric mantle and/or Ga timescales for deep crustal recycling. Thus, alkaline magmas represent a powerful yet underutilized repository for interrogating crustal recycling through geological time. |
format |
Article in Journal/Newspaper |
author |
Hutchison, William Babiel, Rainer J. Finch, Adrian A. Marks, Michael A. W. Markl, Gregor Boyce, Adrian J. Stüeken, Eva E. Friis, Henrik Borst, Anouk M. Horsburgh, Nicola J. |
spellingShingle |
Hutchison, William Babiel, Rainer J. Finch, Adrian A. Marks, Michael A. W. Markl, Gregor Boyce, Adrian J. Stüeken, Eva E. Friis, Henrik Borst, Anouk M. Horsburgh, Nicola J. Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth |
author_facet |
Hutchison, William Babiel, Rainer J. Finch, Adrian A. Marks, Michael A. W. Markl, Gregor Boyce, Adrian J. Stüeken, Eva E. Friis, Henrik Borst, Anouk M. Horsburgh, Nicola J. |
author_sort |
Hutchison, William |
title |
Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth |
title_short |
Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth |
title_full |
Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth |
title_fullStr |
Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth |
title_full_unstemmed |
Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth |
title_sort |
sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on earth |
publisher |
Nature Research |
publishDate |
2019 |
url |
https://eprints.gla.ac.uk/197482/ https://eprints.gla.ac.uk/197482/1/197482.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_relation |
https://eprints.gla.ac.uk/197482/1/197482.pdf Hutchison, W., Babiel, R. J., Finch, A. A., Marks, M. A. W., Markl, G., Boyce, A. J. <http://eprints.gla.ac.uk/view/author/1919.html> , Stüeken, E. E., Friis, H., Borst, A. M. and Horsburgh, N. J. (2019) Sulphur isotopes of alkaline magmas unlock long-term records of crustal recycling on Earth. Nature Communications <https://eprints.gla.ac.uk/view/journal_volume/Nature_Communications.html>, 10, 4208. (doi:10.1038/s41467-019-12218-1 <https://doi.org/10.1038/s41467-019-12218-1>) (PMID:31527587) (PMCID:PMC6746797) |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1038/s41467-019-12218-1 |
container_title |
Nature Communications |
container_volume |
10 |
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1 |
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1785584107572428800 |