Publications by authors named "Halldor Geirsson"

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Role of tectonic stress and topography on repeated lateral dikes: application to the 1975-1984 Krafla and 2023-2025 Svartsengi rifting episodes in Iceland.
Yilin Yang, Freysteinn Sigmundsson, Halldór Geirsson, Joachim Gottsmann

Bull Volcanol· November 2025

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Minute-scale dynamics of recurrent dike intrusions in Iceland with fiber-optic geodesy.
Jiaxuan Li, Ettore Biondi, Elías Rafn Heimisson, Simone Puel, Qiushi Zhai, Halldór Geirsson

Science· June 2025

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Fracturing and tectonic stress drive ultrarapid magma flow into dikes.
Freysteinn Sigmundsson, Michelle Parks, Halldór Geirsson, Andrew Hooper, Vincent Drouin

Science· March 2024

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Deformation and seismicity decline before the 2021 Fagradalsfjall eruption.
Freysteinn Sigmundsson, Michelle Parks, Andrew Hooper, Halldór Geirsson, Kristín S Vogfjörd

Nature· September 2022

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Unexpected large eruptions from buoyant magma bodies within viscoelastic crust.
Freysteinn Sigmundsson, Virginie Pinel, Ronni Grapenthin, Andrew Hooper, Sæmundur A Halldórsson, Halldór Geirsson

Nat Commun· May 2020

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Segmented lateral dyke growth in a rifting event at Bárðarbunga volcanic system, Iceland.
Freysteinn Sigmundsson, Andrew Hooper, Sigrún Hreinsdóttir, Kristín S Vogfjörd, Benedikt G Ófeigsson, Halldór Geirsson

Nature· January 2015

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Intrusion triggering of the 2010 Eyjafjallajökull explosive eruption.
Freysteinn Sigmundsson, Sigrún Hreinsdóttir, Andrew Hooper, Thóra Arnadóttir, Rikke Pedersen, Halldór Geirsson

Nature· November 2010

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Climate effects on volcanism: influence on magmatic systems of loading and unloading from ice mass variations, with examples from Iceland.
Freysteinn Sigmundsson, Virginie Pinel, Björn Lund, Fabien Albino, Carolina Pagli, Halldór Geirsson

Philos Trans A Math Phys Eng Sci· May 2010

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