Trace element composition in olivine from the 2022 Meradalir eruption of the Fagradalsfjall Fires, SW-Iceland (Short Communication)

This study focuses on determining the trace element composition in olivine from olivine tholeiitic basalts sampled in Iceland during the 2022 Meradalir eruption of the 2021-ongoing Fagradalsfjall Fires. The chemistry of Meradalir olivine is characteristic for a volcanic origin where olivine crystals...

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Bibliographic Details
Main Authors: Krmíček, Lukáš, Troll, Valentin R., Vašinová Galiová, Michaela, Thordarson, Thor, Brabec, Marek
Format: Article in Journal/Newspaper
Language:English
Published: Masaryk Univerzity 2023
Subjects:
olivine
Reykjanes Peninsula
Meradalir lava
LA-ICP-MS
Reykjanes
Iceland
Online Access:https://journals.muni.cz/CPR/article/view/33531
Description
Summary:This study focuses on determining the trace element composition in olivine from olivine tholeiitic basalts sampled in Iceland during the 2022 Meradalir eruption of the 2021-ongoing Fagradalsfjall Fires. The chemistry of Meradalir olivine is characteristic for a volcanic origin where olivine crystals represent the product of crystallisation. Olivine from the Meradalir basalt magma falls within the field characteristic for the melting of a dominantly peridotitic mantle source. However, the data show that the 2022 Meradalir olivine crystalized from a compositionally more evolved magma than olivine from the preceding 2021 Geldingadalir eruption of the Fagradalsfjall Fires.

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