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The 1996 and 1998 subglacial eruptions beneath the Vatnajökull ice sheet in Iceland : contransting geochemical and geophysical inferences on magma migrationThe 1996 and 1998 subglacial eruptions beneath the Vatnajökull ice sheet in Iceland : contransting geochemical and geophysical inferences on magma migration

Olgeir Sigmarsson 1958; Guðrún Larsen 1945; Haraldur Rúnar Karlsson 1954 (2001)
Chemical mobilizations in laterites : evidence from trace elements and 238U-234U-230Th disequilibriaChemical mobilizations in laterites : evidence from trace elements and 238U-234U-230Th disequilibria

Olgeir Sigmarsson 1958 (2002)
Fractional degassing of S, Cl and F from basalt magma in the Bárðarbunga rift zone, IcelandFractional degassing of S, Cl and F from basalt magma in the Bárðarbunga rift zone, Iceland

Olgeir Sigmarsson 1958; Moune , Séverine; Gauthier, Pierre-Jean (2020)
Gradual caldera collapse at Bárdarbunga volcano, Iceland, regulated by lateral magma outflowGradual caldera collapse at Bárdarbunga volcano, Iceland, regulated by lateral magma outflow

Magnús Tumi Guðmundsson 1961; Kristín Jónsdóttir 1973; Sæmundur Ari Halldórsson 1981; Benedikt Gunnar Ófeigsson 1975; Kristín S. Vogfjörð 1956; Freysteinn Sigmundsson 1966; Þórdís Högnadóttir 1969; Páll Einarsson 1947; Olgeir Sigmarsson 1958; Kristján Jónasson 1964; Eyjólfur Magnússon 1976; Sigrún Hreinsdóttir 1973; Vala Hjörleifsdóttir 1977; Finnur Pálsson 1956; Guðmundur Heiðar Guðfinnsson 1960; Sigurður Jakobsson 1949; Gunnar B. Guðmundsson 1955; Hildur María Friðriksdóttir 1989; Guðfinna Aðalgeirsdóttir 1972; Björn Oddsson 1951; Baldur Bergsson 1991 (2016)
Holocene volcanic activity at Grímsvötn, Bárdarbunga and Kverkfjöll subglacial centres beneath Vatnajökull, IcelandHolocene volcanic activity at Grímsvötn, Bárdarbunga and Kverkfjöll subglacial centres beneath Vatnajökull, Iceland

Bergrún Arna Óladóttir 1978; Guðrún Larsen 1945; Olgeir Sigmarsson 1958 (2011)
Katla volcano, Iceland : magma composition, dynamics and eruption frequency as recorded by Holocene tephra layersKatla volcano, Iceland : magma composition, dynamics and eruption frequency as recorded by Holocene tephra layers

Bergrún Arna Óladóttir 1978; Olgeir Sigmarsson 1958; Guðrún Larsen 1945; Þorvaldur Þórðarson 1958 (2008)
Magma residence time beneath the Piton de la Fournaise Volcano, Reunion Island, from U-series disequilibriaMagma residence time beneath the Piton de la Fournaise Volcano, Reunion Island, from U-series disequilibria

Olgeir Sigmarsson 1958 (2005)
Origin of 226Ra-230Th disequilibria in arc lavas from southern Chile and implications for magma transfer timeOrigin of 226Ra-230Th disequilibria in arc lavas from southern Chile and implications for magma transfer time

Olgeir Sigmarsson 1958 (2002)
Tephra productivity and eruption flux of the subglacial Katla, volcano IcelandTephra productivity and eruption flux of the subglacial Katla, volcano Iceland

Bergrún Arna Óladóttir 1978; Olgeir Sigmarsson 1958; Guðrún Larsen 1945 (2018)

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