Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland
The basalts of the 2021 Fagradalsfjall eruption were the first erupted on the Reykjanes Peninsula in 781 years and offer a unique opportunity to determine the composition of the mantle underlying Iceland, in particular its oxygen isotope composition (δ18O values). The basalts show compositional vari...
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Uppsala universitet, Naturresurser och hållbar utveckling
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-482020 https://doi.org/10.1038/s41467-022-31348-7 |
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ftuppsalauniv:oai:DiVA.org:uu-482020 2023-05-15T16:45:22+02:00 Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland Bindeman, I. N. Deegan, Frances Troll, Valentin R. Thordarson, T. Höskuldsson, Á. Moreland, W. M. Zorn, E. U. Shevchenko, A. V. Walter, T. R. 2022 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-482020 https://doi.org/10.1038/s41467-022-31348-7 eng eng Uppsala universitet, Naturresurser och hållbar utveckling Uppsala Univ, Ctr Nat Hazards & Disaster Sci CNDS, Uppsala, Sweden. Nature Nature Communications, 2041-1723, 2022, 13:1, orcid:0000-0003-2778-9083 orcid:0000-0002-9065-9225 orcid:0000-0003-1891-3396 orcid:0000-0003-4011-7185 orcid:0000-0002-6316-2563 orcid:0000-0002-5801-1496 orcid:0000-0002-1896-2844 orcid:0000-0003-4936-3366 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-482020 doi:10.1038/s41467-022-31348-7 PMID 35768436 ISI:000830675000026 info:eu-repo/semantics/openAccess Geochemistry Geokemi Article in journal info:eu-repo/semantics/article text 2022 ftuppsalauniv https://doi.org/10.1038/s41467-022-31348-7 2023-02-23T22:00:04Z The basalts of the 2021 Fagradalsfjall eruption were the first erupted on the Reykjanes Peninsula in 781 years and offer a unique opportunity to determine the composition of the mantle underlying Iceland, in particular its oxygen isotope composition (δ18O values). The basalts show compositional variations in Zr/Y, Nb/Zr and Nb/Y values that span roughly half of the previously described range for Icelandic basaltic magmas and signal involvement of Icelandic plume (OIB) and Enriched Mid-Ocean Ridge Basalt (EMORB) in magma genesis. Here we show that Fagradalsfjall δ18O values are invariable (mean δ18O = 5.4 ± 0.3‰ 2 SD, N = 47) and indistinguishable from “normal” upper mantle, in contrast to significantly lower δ18O values reported for erupted materials elsewhere in Iceland (e.g., the 2014–2015 eruption at Holuhraun, Central Iceland). Thus, despite differing trace element characteristics, the melts that supplied the Fagradalsfjall eruption show no evidence for 18O-depleted mantle or interaction with low-δ18O crust and may therefore represent a useful mantle reference value in this part of the Icelandic plume system. Article in Journal/Newspaper Iceland Uppsala University: Publications (DiVA) Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Nature Communications 13 1 |
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Open Polar |
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Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Geochemistry Geokemi |
spellingShingle |
Geochemistry Geokemi Bindeman, I. N. Deegan, Frances Troll, Valentin R. Thordarson, T. Höskuldsson, Á. Moreland, W. M. Zorn, E. U. Shevchenko, A. V. Walter, T. R. Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland |
topic_facet |
Geochemistry Geokemi |
description |
The basalts of the 2021 Fagradalsfjall eruption were the first erupted on the Reykjanes Peninsula in 781 years and offer a unique opportunity to determine the composition of the mantle underlying Iceland, in particular its oxygen isotope composition (δ18O values). The basalts show compositional variations in Zr/Y, Nb/Zr and Nb/Y values that span roughly half of the previously described range for Icelandic basaltic magmas and signal involvement of Icelandic plume (OIB) and Enriched Mid-Ocean Ridge Basalt (EMORB) in magma genesis. Here we show that Fagradalsfjall δ18O values are invariable (mean δ18O = 5.4 ± 0.3‰ 2 SD, N = 47) and indistinguishable from “normal” upper mantle, in contrast to significantly lower δ18O values reported for erupted materials elsewhere in Iceland (e.g., the 2014–2015 eruption at Holuhraun, Central Iceland). Thus, despite differing trace element characteristics, the melts that supplied the Fagradalsfjall eruption show no evidence for 18O-depleted mantle or interaction with low-δ18O crust and may therefore represent a useful mantle reference value in this part of the Icelandic plume system. |
format |
Article in Journal/Newspaper |
author |
Bindeman, I. N. Deegan, Frances Troll, Valentin R. Thordarson, T. Höskuldsson, Á. Moreland, W. M. Zorn, E. U. Shevchenko, A. V. Walter, T. R. |
author_facet |
Bindeman, I. N. Deegan, Frances Troll, Valentin R. Thordarson, T. Höskuldsson, Á. Moreland, W. M. Zorn, E. U. Shevchenko, A. V. Walter, T. R. |
author_sort |
Bindeman, I. N. |
title |
Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland |
title_short |
Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland |
title_full |
Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland |
title_fullStr |
Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland |
title_full_unstemmed |
Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland |
title_sort |
diverse mantle components with invariant oxygen isotopes in the 2021 fagradalsfjall eruption, iceland |
publisher |
Uppsala universitet, Naturresurser och hållbar utveckling |
publishDate |
2022 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-482020 https://doi.org/10.1038/s41467-022-31348-7 |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Holuhraun Reykjanes |
geographic_facet |
Holuhraun Reykjanes |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Nature Communications, 2041-1723, 2022, 13:1, orcid:0000-0003-2778-9083 orcid:0000-0002-9065-9225 orcid:0000-0003-1891-3396 orcid:0000-0003-4011-7185 orcid:0000-0002-6316-2563 orcid:0000-0002-5801-1496 orcid:0000-0002-1896-2844 orcid:0000-0003-4936-3366 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-482020 doi:10.1038/s41467-022-31348-7 PMID 35768436 ISI:000830675000026 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41467-022-31348-7 |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
_version_ |
1766035552816070656 |