
The 2021 Fagradalsfjall eruptions in Iceland involved fractional crystallization and significant crustal contamination, while the 2022 eruptions showed no evidence of crustal assimilation.


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Using osmium isotopes, the 2021 Fagradalsfjall lavas in Iceland are shown to be both fractionally crystallized and strongly crustally contaminated, probably by mid-ocean-ridge gabbros and older basalts underlying the Reykjanes Peninsula.

Deep crustal assimilation during the 2021 Fagradalsfjall Fires, Iceland - Nature

osmium-isotopes-reveal-crustal-assimilation-in-2021-fagradalsfjall-eruptions-iceland


Osmium Isotopes Reveal Crustal Assimilation in 2021 Fagradalsfjall Eruptions, Iceland
