Mineral diffusive and ^(226)Ra/^(230)Th timescales for the genesis of Icelandic basalts: Laki and the Grimsvötn magma system

• Published in: Geochimica et Cosmochimica Acta
• Main Authors: Bindeman, I., Sigmarsson, O., Eiler, J., Wang, Z.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Elsevier 2004
• Subjects: Laki; Iceland
• Online Access: https://doi.org/10.1016/j.gca.2004.05.015

Many Icelandic magmas are 1-3‰ lower in δ^(18)O than typical terrestrial basalts. We report oxygen isotope and trace element analyses in individual grains and bulk separates of olivine, plagioclase, and clinopyroxene phenocrysts and of basaltic glass from the1783-4 fissure eruption of Lakagigar (...