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authIdHal_s : olgeir-sigmarsson

Temporal variations in the diversity of primitive melts supplied to the Santorini silicic magmatic system and links to lithospheric stresses

T. Flaherty , Timothy H. Druitt , L. Francalanci , Pierre Schiano , Olgeir Sigmarsson et al.
Contributions to Mineralogy and Petrology, 2022, 177, ⟨10.1007/s00410-022-01941-6⟩
Journal articles insu-03777183v1
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The sulfur budget of the 2011 Grímsvötn eruption, Iceland

Olgeir Sigmarsson , Baptiste Haddadi , Simon Carn , Séverine Moune , Jonas Gudnason et al.
Geophysical Research Letters, 2013, 40, pp.6095-6100. ⟨10.1002/2013GL057760⟩
Journal articles hal-00992831v1
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Magma storage beneath Grímsvötn volcano, Iceland, constrained by clinopyroxene-melt thermobarometry and volatiles in melt inclusions and groundmass glass

B. Haddadi , O. Sigmarsson , G. Larsen
Journal of Geophysical Research : Solid Earth, 2017, 122 (9), pp.6984 - 6997. ⟨10.1002/2017JB014067⟩
Journal articles hal-01713309v1
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Remobilization of silicic intrusion by mafic magmas during the 2010 Eyjafjallajökull eruption

Olgeir Sigmarsson , Ivan Vlastélic , R. Andreasen , I. Bindeman , Jean-Luc Devidal et al.
Solid Earth, 2011, 2 (2), pp.271-281. ⟨10.5194/se-2-271-2011⟩
Journal articles insu-02949513v1

Holocene volcanic activity at Grímsvötn, Bárdarbunga and Kverkfjöll subglacial centres beneath Vatnajökull, Iceland

Bergrun Oladottir , G. Larsen , Olgeir Sigmarsson
Bulletin of Volcanology, 2011, 73, pp.1187-1208. ⟨10.1007/s00445-011-0461-4⟩
Journal articles istex hal-00683312v1

Excess Po-210 in 2010 Eyjatjallajokull tephra (Iceland): Evidence for pre-eruptive gas accumulation

Olgeir Sigmarsson , Michel Condomines , Pierre-Jean Gauthier
Earth and Planetary Science Letters, 2015, 427, pp.66-73. ⟨10.1016/j.epsl.2015.06.054⟩
Journal articles hal-01217142v1

Formation of U-depleted rhyolite from a basanite at El Hierro, Canary Islands

Olgeir Sigmarsson , Didier Laporte , Marion Carpentier , Bertrand Devouard , Jean-Luc Devidal et al.
Contributions to Mineralogy and Petrology, 2013, 165, pp.601-622. ⟨10.1007/s00410-012-0826-5⟩
Journal articles istex hal-00992827v1

Time constraints on the origin of large volume basalts derived from O-isotopes and trace element mineral zoning and U-series disequilibria in the: Laki and Grímsvötn volcanic system

I. Bindeman , Olgeir Sigmarsson , J. Eiler
Earth and Planetary Science Letters, 2006, 245, pp.245-259
Journal articles hal-00181028v1

Provenance of basaltic tephra from Vatnajökull subglacial volcanoes, Iceland, as determined by major- and trace-element analyses

Bergrun Oladottir , Olgeir Sigmarsson , G. Larsen , Jean-Luc Devidal
The Holocene, 2011, 21, pp.1037-1048. ⟨10.1177/0959683611400456⟩
Journal articles hal-00683317v1

Recent volatile evolution in the magmatic systemsystem of Hekla volcano, Iceland

Séverine Moune , Olgeir Sigmarsson , T. Thordarson , Pierre-Jean Gauthier
Earth and Planetary Science Letters, 2007, 255 (3-4), pp.373-389. ⟨10.1016/j.epsl.2006.12.024⟩
Journal articles istex hal-00331711v1

Basaltic magmas of Santorini from past to present

T. Flaherty , Timothy H. Druitt , Olgeir Sigmarsson , Pierre Schiano , L. Francalanci et al.
EGU General Assembly, Apr 2019, Vienne, Austria
Conference papers hal-02529162v1
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Rapid shifting of a deep magmatic source at Fagradalsfjall volcano, Iceland

Sæmundur A. Halldórsson , Edward W. Marshall , Alberto Caracciolo , Simon Matthews , Enikő Bali et al.
Nature, 2022, 609, pp.529-534. ⟨10.1038/s41586-022-04981-x⟩
Journal articles insu-03825081v1
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Geothermobarometry of the 2010 Eyjafjallajökull eruption: New constraints on Icelandic magma plumbing systems

J.K. Keiding , Olgeir Sigmarsson
Journal of Geophysical Research, 2012, 117, pp.B00C09. ⟨10.1029/2011JB008829⟩
Journal articles hal-00793976v1
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Long or short silicic magma residence time beneath Hekla volcano, Iceland?

Olgeir Sigmarsson , Ingibjörg Bergþórsdóttir , Jean-Luc Devidal , Gudrún Larsen , Abdelmouhcine Gannoun et al.
Contributions to Mineralogy and Petrology, 2022, 177 (1), pp.13. ⟨10.1007/s00410-021-01883-5⟩
Journal articles hal-03594128v1
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Elevated gas flux and trace metal degassing from the 2014-2015 fissure eruption at the Bárðarbunga volcanic system, Iceland

Pierre-Jean Gauthier , Olgeir Sigmarsson , Mathieu Gouhier , Baptiste Haddadi , Séverine Moune et al.
Journal of Geophysical Research : Solid Earth, 2016, 121 (3), pp.1610 - 1630. ⟨10.1002/2015JB012111⟩
Journal articles hal-01637164v1
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Influence of tectonism on the composition of acid and basaltic lava

Olgeir Sigmarsson
Iceland in the Central Northern Atlantic : hotspot, sea currents and climate change, May 2010, Plouzané, France
Conference papers hal-00482056v1

Comment on "Continental geochemical signatures in dacites from Iceland and implications for models of early Archaean crust formation" by Willbold, M., Hegner, E., Stracke A. and Rocholl A.

Erwan Martin , H. Martin , Olgeir Sigmarsson
Earth and Planetary Science Letters, 2010, 293, pp.218-219. ⟨10.1016/j.epsl.2010.02.021⟩
Journal articles istex hal-00635420v1

Trace element degassing and enrichment in the eruptive plume of the 2000 eruption of Hekla volcano, Iceland

Séverine Moune , Pierre-Jean Gauthier , S.R. Gislason , Olgeir Sigmarsson
Geochimica et Cosmochimica Acta, 2006, 70 (2), pp.461-479
Journal articles hal-00272134v1

Geochemistry of Igneous Rocks in Iceland: a review

Olgeir Sigmarsson , J. Maclennan , M. Carpentier
Jökull, 2008, 58, pp.139 à 160
Journal articles insu-00354561v1

Origin of Icelandic basalts: a review of their petrology and geochemistry.

Olgeir Sigmarsson , S. Steinthorsson
Journal of Geodynamics, 2007, 43 (1), pp.87-100. ⟨10.1016/j.jog.2006.09.016⟩
Journal articles istex hal-00272294v1

Detrital zircon resolve longevity and evolution of silicic magmatism in extinct volcanic centers: A case study from the East Fjords of Iceland

T.L. Carley , C.F. Miller , O. Sigmarsson , M.A. Coble , C.M. Fisher et al.
Geosphere, 2017, 13 (5), pp.1640 - 1663. ⟨10.1130/GES01467.1⟩
Journal articles hal-01713319v1

Silicic magma petrogenesis in Iceland by remelting of hydrothermally altered crust based on oxygen isotope diversity and disequilibria between zircon and magma with implications for MO

Ilya Bindemand , Andrey Gurenko , Tamara Camara , Calvin Miller , Erwan Martin et al.
Terra Nova, 2012, pp.1-6. ⟨10.1111/j.1365-3121.2012.01058.x⟩
Journal articles istex hal-00692455v1
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Melt inclusion constraints on the magma source of Eyjafjallajökull 2010 flank eruption

Séverine Moune , Olgeir Sigmarsson , Pierre Schiano , T. Thordarson , J.K. Keiding et al.
Journal of Geophysical Research : Solid Earth, 2012, 117, pp.B00C07. ⟨10.1029/2011JB008718⟩
Journal articles hal-00720257v1
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Survival of the Mýrdalsjökull ice cap through the Holocene thermal maximum: evidence from sulphur contents in Katla tephra layers (Iceland) from the last ∼8400 years

Bergrun Oladottir , T. Thordarson , Olgeir Sigmarsson
Annals of Glaciology, 2007, 45 (1), pp.183-188. ⟨10.3189/172756407782282516⟩
Journal articles hal-00338717v1

Oxygen isotope heterogeneity and disequilibria of olivine crystals in large volume Holocene basalts from Iceland: Evidence for magmatic digestion and erosion of Pleistocene hyaloclastites

Ilya Bindeman , Andrey A. Gurenko , Olgeir Sigmarsson , Marc Chaussidon
Geochimica et Cosmochimica Acta, 2008, 72 (17), pp.4397-4420. ⟨10.1016/j.gca.2008.06.010⟩
Journal articles istex hal-00364395v1

B–O–Th isotope systematics in Icelandic tephra

Estelle F. Rose-Koga , Olgeir Sigmarsson
Chemical Geology, 2008, 255 (3-4), pp.454-462. ⟨10.1016/j.chemgeo.2008.07.013⟩
Journal articles istex hal-00380858v1

Could Iceland be a modern analogue for the Earth's early continental crust?

Erwan Martin , Hervé Martin , Olgeir Sigmarsson
Terra Nova, 2008, 20 (6), pp.463-468. ⟨10.1111/j.1365-3121.2008.00839.x⟩
Journal articles hal-00381783v1

Dynamic magma mixing revealed by the 2010 Eyjafjallajökull eruption

Olgeir Sigmarsson , Ivan Vlastélic , R. Andreasen , I. Bindeman , J.-L. Devidal et al.
Solid Earth Discussions, 2011, 3, pp.591-613. ⟨10.5194/sed-3-591-2011⟩
Journal articles hal-00674051v1

New Thorium Isotope Ratio Measurements in Silicate Reference Materials: A-THO, AGV-2, BCR-2, BE-N, BHVO-2 and BIR-1

Marion Carpentier , Abdelmouhcine Gannoun , Christian Pin , Olgeir Sigmarsson
Geostandards and Geoanalytical Research, 2016, 40 (2), pp.239 - 256. ⟨10.1111/j.1751-908X.2015.00385.x⟩
Journal articles istex hal-01637080v1

Clinopyroxene-melt experiments of Holuhraun basalt, Iceland: implications for magma storage and transport in the crust

Didier Laporte , Olgeir Sigmarsson , Baptiste Haddadi , Antoine Mathieu , Franck Pointud et al.
EGU General Assembly 2019, Apr 2019, Vienne, Austria. Vol. 21, EGU2019-7077-1
Conference poster hal-02527232v1