Olgeir Sigmarsson

Gradual caldera collapse at Bárdarbunga volcano, Iceland, regulated by lateral magma outflow

Magnús T. Guðmundsson, Kristín Jónsdóttir, Andrew Hooper et al. · Science · 2016 · 305 citations · Full text

Volcanology, Engineering, Volcanism +18

Iron and lithium isotope systematics of the Hekla volcano, Iceland — Evidence for Fe isotope fractionation during magma differentiation

Jan A. Schuessler, Ronny Schoenberg, Olgeir Sigmarsson · Chemical Geology · 2008 · 279 citations

Hekla Volcano, Magmatic Process, Volcanology +10

Chemical mobilizations in laterites: evidence from trace elements and 238 U- 234 U- 230 Th disequilibria

O. Dequincey, François Chabaux, N. Clauer et al. · Geochimica et Cosmochimica Acta · 2002 · 157 citations

Biogeochemistry, Engineering, Environmental Geochemistry +9

A detailed Th, Sr and O isotope study of Hekla: differentiation processes in an Icelandic Volcano

Olgeir Sigmarsson, Michel Condomines, Serge Fourcade · Contributions to Mineralogy and Petrology · 1992 · 143 citations

Volcanology, Engineering, Volcanism +7

Katla volcano, Iceland: magma composition, dynamics and eruption frequency as recorded by Holocene tephra layers

Bergrún Arna Óladóttir, Olgeir Sigmarsson, Guðrún Larsen et al. · Bulletin of Volcanology · 2007 · 143 citations

Volcano Monitoring, Volcanology, Engineering +12