Skip to main content
ÍS
EN
Search
Communication Portal
Find Staff
Webmail
Ugla
About UI
Schools and Faculties
School of Education
School of Engineering and Natural Sciences
School of Health Sciences
School of Humanities
School of Social Sciences
Faculties from A-Z
Governance
Rector
Pro-Rectors
Office of the Rector
Structure
University Council
University Council Committees
University Forum
Regulations of UI
Internal Auditing
Central Administration
Academic Affairs
Finance
Human Resources
Information Technology
International Division
Marketing and Public Relations
Operations and Resources
Science and Innovation
Human Resource
International Staff Services
Human Resource Policy
Staff Exchanges
Vacancies
About the University
Equality and Diversity
Sustainability and Environment
Arts
University concerts
History
Quality Assurance
Policies
Strategy 2021-2026
Values of the University
Other policies and plans
Sustainability at the University
Promotional Material
News
Brand Manual
Current promotional material
Photo Gallery
Facts and figures
The University
Search for a specialist
Event registration
Collaboration
Domestic Collaboration
Roadmap to Research Infrastructures
Public Universities Network
Icelandic Rectors' Conference
University Hospital
International Collaboration
International Division
Partner Universities
edX
NUAS
IAU
Erasmus+
Nordplus
Ukraine
Aurora
Aurora Cooperation
For Students
For Staff
Work Packages
Business
UI Science Park
Students' Employment Agency
Society
Community Projects
Sprettur
Student Community Projects
Alumni
UI Alumni
Former employees
Research
Innovation
Innovation at UI
Start-ups
Service and Counseling
Research at the University
Division of Science and Innovation
Graduate School
Funds and Grants
Funds and Scholarships
University of Iceland Funds
Institutions and Centres
Research Institutions
Research Centres
Collaboration
Icelandic Rectors' Conference
Open Access
ROCS Research Centre
Committees
Science Committee
Science Ethics Committee
Study
Programmes
What do you want to study?
International Programmes
Incoming Exchange Studies
Outgoing Exchange Studies
Traineeship Abroad
Summer Abroad
Distance Education
Study Information
New Students
Study Information
Academic Calendar
Course Catalogue
Timetables
Examinations
Credit System
Graduation
Application
Apply to study at UI
Applications
Information for Applicants
International Students
Admission Requirements
Supporting Documents
Registration Fees
Proof of English Proficiency
Registration and Student Permit
Services
Service Desk
Student Registration
Student Counselling Centre
IT support
University Centre
Living in Iceland
Student Life
Housing
Living Costs
Transportation
Support
Libraries and Bookstores
Center for Writing
Language Centre
Student Council
Facilities
University Centre
Study and Computer Facilities
Food and Drinks
University Buildings
Sports Facilities
Kindergarten and Child Care
Þorvaldur Þórðarson - Professor
–
School of Engineering and Natural Sciences
Þorvaldur Þórðarson
Íslenska
Professor
Professor in Volcanology and Petrology
Location
Askja / N-224
Phone
525 - 4428
Email
torvth [at] hi.is
Unit
Faculty of Earth Sciences
Published Work
Þorvaldur Þórðarson - published work
Curriculum Vitae
Þorvaldur Þórðarson - Curriculum Vitae
ORCID site
https://orcid.org/0000-0003-4011-7185
Research portal – Þorvaldur Þórðarson
Under construction throughout the autumn semester 2023
Courses 2022 - 2023
JAR256F - Volcanic succession in Iceland and climate evolution in Iceland
JAR258F - Advanced Volcanology – eruption and shallow conduit processes
JAR514M - Volcanology
JAR513G - Geological Mapping
Collaboration
Áslaug Geirsdóttir, Ármann
,
Ben Edwards, Birgir
,
Ben Edwards, Birgir
Education
1995
,
Ph.D.
,
University of Hawaii
,
Volcanology
1990
,
M.Sc.
,
University of Texas at Austin
,
Volcanology
1988
,
B.Sc.
,
University of Iceland
,
Honours in Geology
1984
,
B.Sc.
,
University of Iceland
,
Geology
Professional Experience
2012 -
,
Professor,
Faculty of Earth Sciences, University of Iceland
2015 -
2015,
Visiting Professor,
School of Physical Sciences, University of Tasmania
2006 -
2013,
Reader,
School of Earth Sciences, University of Edinburgh
2003 -
2006,
Researcher,
Institute of Earth Sciences, University of Iceland
2001 -
2006,
Researcher,
Department of Geology and Geophysics, University of Hawaii, Manoa
2004 -
2004,
Visiting professor,
Blaise Pascal University, Fance
1996 -
2003,
Researcher,
Exploration and Mining, CSIRO, Australia
1994 -
1996,
Researcher,
Wairakei Research Centre, IGNS, New Zealand
1990 -
1994,
NASA Global Change Fellow,
Department of Geology and Geophysics, University of Hawaii at Manoa
1988 -
1990,
Research Fellow,
NVI, Iceland
1986 -
1987,
Field Instructor,
NVI, Reykjavík
1974 -
1986,
Independent Contractor in Construction,
Multiple (e.g. the Terminal at Keflavík airport)
1979 -
1980,
Teacher,
Borganes elementary school
1978 -
1979,
Teacher,
Selfoss elementary school
Published works
2023
Seismic Tremor Reveals Changes in Episode Duration throughout the 2021 Geldingadalir Eruption, Iceland
Holocene deformation on a transform fault: Insights from paleoseismology on the Húsavík-Flatey Fault in North Iceland
Eruption Parameters Measured In-flight during the 2022 Icelandic Meradalir Eruption
Years of deep magmatic upheaval preceding the 2021 eruption at Fagradalsfjall, Iceland
A mineralogical approach to the 2021 Geldingadalir eruption of the Fagradalsfjall Fires,SW-Iceland – the study of water in clinopyroxene phenocrystals
Regional precipitation variability modulates Holocene fire history of Iceland
2022
Crowd-sourcing observations of volcanic eruptions during the 2021 Fagradalsfjall and Cumbre Vieja events
Nature Communications
Multiple Early Holocene eruptions of Katla produced tephra layers with similar composition to the Vedde Ash
Crater Rim Collapses Affect the Lava Fountaining Frequency during the Fagradalsfjall Eruption, Iceland 2021
Shallow conduit processes and sulfur release in the phreatomagmatic stages of the 1211 CE Younger Stampar eruption, Iceland
Characterising ice-magma interactions during a shallow subglacial fissure eruption: northern Laki, Iceland, a case study
Supplementary material to "Multiple Early Holocene eruptions of Katla produced tephra layers with similar composition to the Vedde Ash"
Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland
Nature Communications
2021
The explosive, basaltic Katla eruption in 1918, south Iceland II. Isopach map, ice cap deposition of tephra and layer volume
JOKULL
2020
The Saksunarvatn Ash and the G10ka series tephra. Review and current state of knowledge
Quaternary Geochronology
Temporal and spatial evolution of the Neogene age Breiðdalur central volcano through 39Ar/40Ar and U-Pb age determination
Journal of Volcanology and Geothermal Research
A catalogue of major and trace element data for Icelandic Holocene silicic tephra layers
Journal of Quaternary Science
Mid-crustal storage and crystallization of Eyjafjallajökull ankaramites, South Iceland
JOKULL
Lava Flow Roughness on the 2014–2015 Lava Flow-Field at Holuhraun, Iceland, Derived from Airborne LiDAR and Photogrammetry
Geosciences
Diffusion timescales of magmatic processes in the Moinui lava eruption at Mauna Loa, Hawaii, as inferred from bimodal olivine populations
Journal of Petrology
Lava–water interaction and hydrothermal activity within the 2014–2015 Holuhraun Lava Flow Field, Iceland
Journal of Volcanology and Geothermal Research
2019
The 2014-2015 lava flow field at Holuhraun, Iceland: Using airborne hyperspectral remote sensing for discriminating the lava surface
Remote Sensing
Thermal model of lava in Mt. Agung during December 2017 episodes derived from Integrated SENTINEL 2A and ASTER remote sensing datasets
IOP Conference Series: Earth and Environmental Science
Formation of segregation structures in Hafnarhraun pāhoehoe lobe, SW Iceland: a window into crystal–melt separation in basaltic magma
Bulletin of Volcanology
Signature of deep mantle melting in South Iceland olivine
Contributions to Mineralogy and Petrology
The onset of neoglaciation in Iceland and the 4.2 ka event
Climate of the Past
Driving mechanisms of subaerial and subglacial explosive episodes during the 10th century Eldgjá fissure eruption, southern Iceland
Volcanica
2018
Provenance, stratigraphy and chronology of Holocene tephra from Vestfirðir, Iceland
Quaternary Geochronology
The onset of Neoglaciation in Iceland and the 4.2 ka event
Climatic control on Icelandic volcanic activity during the mid-Holocene
Geology
Assessing impact to infrastructures due to tephra fallout from Öræfajökull volcano (Iceland) by using a scenario-based approach and a numerical model
Frontiers in Earth Science
Magmatic crystal records in time, space, and process, causatively linked with volcanic unrest
Earth and Planetary Science Letters
Petrology and geochemistry of the 2014–2015 Holuhraun eruption, central Iceland: compositional and mineralogical characteristics, temporal variability and magma storage
Contributions to Mineralogy and Petrology
Total grain-size distribution of four subplinian–Plinian tephras from Hekla volcano, Iceland: Implications for sedimentation dynamics and eruption source parameters
Journal of Volcanology and Geothermal Research
New insights for detecting and deriving thermal properties of lava flow using infrared satellite during 2014-2015 effusive eruption at Holuhraun, Iceland
Remote Sensing
Paleomagnetism of Holocene lava flows from the Reykjanes Peninsula and the Tungnaá lava sequence (Iceland): implications for flow correlation and ages
Bulletin of Volcanology
The 1845 Hekla eruption: Grain-size characteristics of a tephra layer
Journal of Volcanology and Geothermal Research
Interaction between central volcanoes and regional tectonics along divergent plate boundaries: Askja, Iceland
Bulletin of Volcanology
The Volume of Lava Erupted During the 2014 to 2015 Eruption at Holuhraun, Iceland: A Comparison Between Satellite- and Ground-Based Measurements
Journal of Geophysical Research: Solid Earth
2017
Atmospheric processes affecting the separation of volcanic ash and SO<sub>2</sub> in volcanic eruptions: Inferences from the May 2011 Grímsvötn eruption
Translations of volcanological terms: cross-cultural standards for teaching, communication, and reporting
Bulletin of Volcanology
Lava field evolution and emplacement dynamics of the 2014–2015 basaltic fissure eruption at Holuhraun, Iceland
Journal of Volcanology and Geothermal Research
Assessment of the potential respiratory hazard of volcanic ash from future Icelandic eruptions: A study of archived basaltic to rhyolitic ash samples
Environmental Health: A Global Access Science Source
Fragmentation mechanisms associated with explosive lava–water interactions in a lacustrine environment
Bulletin of Volcanology
Strong constraints on aerosol-cloud interactions from volcanic eruptions
Nature
Volatile and light lithophile elements in high-anorthite plagioclase-hosted melt inclusions from Iceland
Geochimica et Cosmochimica Acta
REJUVENATION STAGE VOLCANIC SUCCESSION AT LAEO KILAUEA, KAUAI, HAWAII
Message in a stainless steel bottle thrown into deep geological time
Gondwana Research
Multiple coincident eruptive seismic tremor sources during the 2014–2015 eruption at Holuhraun, Iceland
Journal of Geophysical Research: Solid Earth
The opening subplinian phase of the Hekla 1991 eruption: properties of the tephra fall deposit
Bulletin of Volcanology
Atmospheric processes affecting the separation of volcanic ash and SO
2
in volcanic eruptions: Inferences from the May 2011 Grímsvötn eruption
Atmospheric Chemistry and Physics
Pāhoehoe, ‘a‘ā, and block lava: an illustrated history of the nomenclature
Bulletin of Volcanology
Rootless tephra stratigraphy and emplacement processes
Bulletin of Volcanology
The rheological evolution of the 2014/2015 eruption at Holuhraun, central Iceland
Bulletin of Volcanology
Supplementary material to "Atmospheric processes affecting the separation of volcanic ash and SO<sub>2</sub> in volcanic eruptions: Inferences from the May 2011 Grímsvötn eruption"
2016
Shallow conduit processes during the ad 1158 explosive eruption of Hekla volcano, Iceland
Bulletin of Volcanology
Dispersal of key subplinian–Plinian tephras from Hekla volcano, Iceland: implications for eruption source parameters
Bulletin of Volcanology
Conclusion: Recommendations and findings of the RED SEED working group
Geological Society Special Publication
Postglacial eruptive history of the Askja region, North Iceland
Bulletin of Volcanology
Tracking timescales of short-term precursors to large basaltic fissure eruptions through Fe-Mg diffusion in olivine
Earth and Planetary Science Letters
UNDERSTANDING FLOOD LAVAS: THE SAGA CONTINUES
Selective environmental stress from sulphur emitted by continental flood basalt eruptions
Nature Geoscience
The architecture and shallow conduits of Laki-type pyroclastic cones: insights into a basaltic fissure eruption
Bulletin of Volcanology
Degassing and magma mixing during the eruption of Surtsey Volcano (Iceland, 1963–1967): the signatures of a dynamic and discrete rift propagation event
Bulletin of Volcanology
Subglacial lava propagation, ice melting and heat transfer during emplacement of an intermediate lava flow in the 2010 Eyjafjallajökull eruption
Bulletin of Volcanology
2015
Supplementary material to "Big grains go far: reconciling tephrochronology with atmospheric measurements of volcanic ash"
Rootless cone eruption processes informed by dissected tephra deposits and conduits
Bulletin of Volcanology
Disruption of tephra fall deposits caused by lava flows during basaltic eruptions
Bulletin of Volcanology
Big grains go far: reconciling tephrochronology with atmospheric measurements of volcanic ash
The evolution and storage of primitive melts in the Eastern Volcanic Zone of Iceland: the 10 ka Grimsvotn tephra series (i.e. the Saksunarvatn ash)
Contributions To Mineralogy and Petrology
Diffusive over-hydration of olivine-hosted melt inclusions
Earth and Planetary Science Letters
Big grains go far: understanding the discrepancy between tephrochronology and satellite infrared measurements of volcanic ash
Atmospheric Measurement Techniques
MeMoVolc consensual document: a review of cross-disciplinary approaches to characterizing small explosive magmatic eruptions
Bulletin of Volcanology
Satellite detection, long-range transport, and air quality impacts of volcanic sulfur dioxide from the 2014-2015 flood lava eruption at Bárðarbunga (Iceland)
Journal of Geophysical Research
The RESET project: Constructing a European tephra lattice for refined synchronisation of environmental and archaeological events during the last c. 100 ka
Quaternary Science Reviews
2014
Assessing hazards to aviation from sulfur dioxide emitted by explosive Icelandic eruptions
Journal of Geophysical Research-Atmospheres
Melt mixing causes negative correlation of trace element enrichment and CO2 content prior to an Icelandic eruption
Earth and Planetary Science Letters
Dike emplacement at Bardarbunga, Iceland, induces unusual stress changes, caldera deformation, and earthquakes
Bulletin of Volcanology
Holocene tephra from Iceland and Alaska in SE Greenland shelf sediments
Geological Society Special Publication
The Cosmos greenstone succession, Agnew-Wiluna greenstone belt, Yilgarn Craton, Western Australia: Geochemistry of an enriched Neoarchaean volcanic arc succession
Lithos
Crystal Storage and Transfer in Basaltic Systems: the Skuggafjoll Eruption, Iceland
Journal of Petrology
Reply to comment by Cole-Dai et al. on "Climatic impact of the long-lasting Laki eruption: Inapplicability of mass-independent sulfur isotope composition measurements"
Journal of Geophysical Research-Atmospheres
Volcanic plume height correlated with magma-pressure change at Grímsvötn Volcano, Iceland
Nature Geoscience
Monitoring the Magmas Fuelling Volcanic Eruptions in Near-real-time Using X-ray Micro-computed Tomography
Journal of Petrology
Pyroclastic edifices record vigorous lava fountains during the emplacement of a flood basalt flow field, Roza Member, Columbia River Basalt Province, USA
Geological Society of America Bulletin
Reconstructing the deep CO2 degassing behaviour of large basaltic fissure eruptions
Earth and Planetary Science Letters
Volcanic plume height correlated with magma-pressure change at Grimsvotn Volcano, Iceland
Nature Geoscience
2013
Mush Disaggregation in Basaltic Magma Chambers: Evidence from AD 1783 Laki Eruption (vol 53, pg 2593, 2012)
Journal of Petrology
Corrigendum to "Three-dimensional lithofacies variations in hyaloclastite deposits" [J. Volcanol. Geotherm. Res. 250 (2013) 19-33]
Journal of Volcanology and Geothermal Research
Oxygen isotopes in melt inclusions and glasses from the Askja volcanic system, North Iceland
Geochimica Et Cosmochimica Acta
U-Pb dating constraints on the felsic and intermediate volcanic sequence of the nickel-sulphide bearing Cosmos succession, Agnew-Wiluna greenstone belt, Yilgarn Craton, Western Australia
Precambrian Research
Crystal-Melt Relationships and the Record of Deep Mixing and Crystallization in the ad 1783 Laki Eruption, Iceland
Journal of Petrology
Physicochemical and toxicological profiling of ash from the 2010 and 2011 eruptions of Eyjafjallajokull and Grimsvotn volcanoes, Iceland using a rapid respiratory hazard assessment protocol
Environmental Research
Three-dimensional lithofacies variations in hyaloclastite deposits (vol 250, pg 19, 2013)
Journal of Volcanology and Geothermal Research
Seismicity observed under the Snaefellsjokull volcano
Jokull
The 1874-1876 volcano-tectonic episode at Askja, North Iceland: Lateral flow revisited
Geochemistry Geophysics Geosystems
Observing Iceland's Eyjafjallajokull 2010 eruptions with the autonomous NASA Volcano Sensor Web
Journal of Geophysical Research-Solid Earth
UK monitoring and deposition of tephra from the May 2011 eruption of Grímsvötn, Iceland
Journal of Applied Volcanology
Three-dimensional lithofacies variations in hyaloclastite deposits
Journal of Volcanology and Geothermal Research
2012
Abrupt onset of the Little Ice Age triggered by volcanism and sustained by sea-ice/ocean feedbacks
Geophysical Research Letters
Ash from the Eyjafjallajokull eruption (Iceland): Fragmentation processes and aerodynamic behavior
Journal of Geophysical Research-Solid Earth
Distal deposition of tephra from the Eyjafjallajokull 2010 summit eruption
Journal of Geophysical Research-Solid Earth
Formation of Oskjuvatn caldera at Askja, North Iceland: Mechanism of caldera collapse and implications for the lateral flow hypothesis
Journal of Volcanology and Geothermal Research
Melt inclusion constraints on the magma source of Eyjafjallajokull 2010 flank eruption
Journal of Geophysical Research-Solid Earth
Mush Disaggregation in Basaltic Magma Chambers: Evidence from the ad 1783 Laki Eruption
Journal of Petrology
Evaluation of the effects of composition on instrumental mass fractionation during SIMS oxygen isotope analyses of glasses
Chemical Geology
Interactions between lava and snow/ice during the 2010 Fimmvorouhals eruption, south-central Iceland
Journal of Geophysical Research-Solid Earth
Petrogenesis of the Solheimar ignimbrite (Katla, Iceland): Implications for tephrostratigraphy
Geochimica Et Cosmochimica Acta
Climatic impact of the long-lasting 1783 Laki eruption: Inapplicability of mass-independent sulfur isotopic composition measurements
Journal of Geophysical Research-Atmospheres
Ash generation and distribution from the April-May 2010 eruption of Eyjafjallajokull, Iceland
Scientific Reports
Dynamics, stratigraphy and proximal dispersal of supraglacial tephra during the ice-confined 2004 eruption at Grimsvotn Volcano, Iceland
Bulletin of Volcanology
Volcanism and the atmosphere
Eos
Volcanism and the atmosphere
Eos, Transactions American Geophysical Union
2011
Perception of volcanic eruptions in Iceland
Landscapes and Societies: Selected Cases
Lava-ground ice interactions in Elysium Planitia, Mars: Geomorphological and geospatial analysis of the Tartarus Colles cone groups
Journal of Geophysical Research-Planets
New palaeointensity data from Holocene Icelandic lavas
Physics of the Earth and Planetary Interiors
Remobilization of silicic intrusion by mafic magmas during the 2010 Eyjafjallajokull eruption
Solid Earth
Integrating multiple space and ground sensors to track volcanic activity
34th International Symposium on Remote Sensing of Environment - The GEOSS Era: Towards Operational Environmental Monitoring
A model for syn-eruptive groundwater flow during the phreatoplinian phase of the 28-29 March 1875 Askja volcano eruption, Iceland
Journal of Volcanology and Geothermal Research
A 3000-year varved record of glacier activity and climate change from the proglacial lake Hvitarvatn, Iceland
Quaternary Science Reviews
Excess mortality in Europe following a future Laki-style Icelandic eruption
Proceedings of the National Academy of Sciences of the United States of America
Lava–ground ice interactions in Elysium Planitia, Mars: Geomorphological and geospatial analysis of the Tartarus Colles cone groups
Journal of Geophysical Research
2010
Perception of Volcanic Eruptions in Iceland
Landscapes and Societies
Widespread dispersal of Icelandic tephra: how does the Eyjafjoll eruption of 2010 compare to past Icelandic events?
Journal of Quaternary Science
Explosive lava-water interactions I: architecture and emplacement chronology of volcanic rootless cone groups in the 1783-1784 Laki lava flow, Iceland
Bulletin of Volcanology
Explosive lava-water interactions II: self-organization processes among volcanic rootless eruption sites in the 1783-1784 Laki lava flow, Iceland
Bulletin of Volcanology
Microanalysis of tephra by LA-ICP-MS - Strategies, advantages and limitations assessed using the Thorsmork ignimbrite (Southern Iceland)
Chemical Geology
Tephra dispersal and eruption dynamics of wet and dry phases of the 1875 eruption of Askja Volcano, Iceland
Bulletin of Volcanology
The impact of the 1783-1784 AD Laki eruption on global aerosol formation processes and cloud condensation nuclei
Atmospheric Chemistry and Physics
T. Thordarson, S. Self, G. Larsen, S.K. Rowland, Á. Hoskuldsson (eds): Studies in volcanology---the legacy of George Walker (Special Publications of IAVCEI No. 2)
Bulletin of Volcanology
2009
Abrupt shifts between wet and dry phases of the 1875 eruption of Askja Volcano: Microscopic evidence for macroscopic dynamics
Journal of Volcanology and Geothermal Research
The endogenous growth of pahoehoe lava lobes and morphology of lava-rise edges
Special Publications of IAVCEI
Floods of water and lava in the Columbia River Basin: Analogs for Mars
GSA Field Guides
Segregations in Surtsey lavas (Iceland) reveal extreme magma differentiation during late stage flow emplacement
Special Publications of IAVCEI
Physical volcanology of continental large igneous provinces: Update and review
Special Publications of IAVCEI
Effects of megascale eruptions on Earth and Mars
Special Paper of the Geological Society of America
Preface
Volcaniclastic Sedimentation in Lacustrine Settings
A 2000 year record of climate variations reconstructed from Haukadalsvatn, West Iceland
Journal of Paleolimnology
Effusive activity in the 1963-1967 Surtsey eruption, Iceland: Flow emplacement and growth of small lava shields
Special Publications of IAVCEI
Tephra Layers in a Sediment Core from Lake Hestvatn, Southern Iceland: Implications for Evaluating Sedimentation Processes and Environmental Impacts on a Lacustrine System Caused by Tephra Fall Deposits in the Surrounding Watershed
Volcaniclastic Sedimentation in Lacustrine Settings
Determination of rapid Deccan eruptions across the Cretaceous-Tertiary boundary using paleomagnetic secular variation: 2. Constraints from analysis of eight new sections and synthesis for a 3500-m-thick composite section
Journal of Geophysical Research-Solid Earth
Melt segregations in a Columbia River Basalt lava flow: A possible mechanism for the formation of highly evolved mafic magmas
Lithos
2008
The AD 1362 Oraefajokull eruption, SE Iceland: Physical volcanology and volatile release
Journal of Volcanology and Geothermal Research
Katla volcano, Iceland: magma composition, dynamics and eruption frequency as recorded by Holocene tephra layers
Bulletin of Volcanology
Contrasting styles of welding observed in the proximal Askja 1875 eruption deposits I: Regional welding
Journal of Volcanology and Geothermal Research
Contrasting styles of welding observed in the proximal Askja 1875 eruption deposits II: Local welding
Journal of Volcanology and Geothermal Research
Postglacial volcanism in Iceland
Jokull
2007
Volcanism in Iceland in historical time: Volcano types, eruption styles and eruptive history
Journal of Geodynamics
Melt mixing and crystallisation in the plumbing system of the 1783 Laki eruption
Geochimica Et Cosmochimica Acta
Role of syn-eruptive cooling and degassing on textures of lavas from the AD 1783-1784 Laki eruption, south Iceland
Journal of Petrology
Recent volatile evolution in the magmatic system of Hekla volcano, Iceland
Earth and Planetary Science Letters
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
Annals of Glaciology
2006
High-latitude eruptions cast shadow over the African monsoon and the flow of the Nile
Geophysical Research Letters
Volatile fluxes during flood basalt eruptions and potential effects on the global environment: A Deccan perspective
Earth and Planetary Science Letters
Flood lavas on earth, Io and Mars
Journal of the Geological Society
Modeling the distribution of the volcanic aerosol cloud from the 1783-1784 Laki eruption
Journal of Geophysical Research-Atmospheres
Contamination of water supplies by volcanic ashfall: A literature review and simple impact modelling
Journal of Volcanology and Geothermal Research
2005
Gas fluxes from flood basalt eruptions
Elements
Volcanic air pollution and mortality in France 1783-1784
Comptes Rendus Geoscience
Petrogenesis of lavas from Detroit Seamount: Geochemical differences between Emperor Chain and Hawaiian volcanoes
Geochemistry Geophysics Geosystems
Morphology, surface structures, and emplacement of lavas produced by Laki, A.D. 1783-1784
Special Paper of the Geological Society of America
2004
Clustering within rootless cone groups on Iceland and Mars: Effect of nonrandom processes
Journal of Geophysical Research-Planets
Magma volume, volatile emissions, and stratospheric aerosols from the 1815 eruption of Tambora
Geophysical Research Letters
Accretionary-lapilli-bearing pyroclastic rocks at ODP Leg 192 Site 1184: A record of subaerial phreatomagmatic eruptions on the Ontong Java Plateau
Geological Society Special Publication
Komatiites and nickel sulphide orebodies of the Black Swan area, Yilgarn Craton, Western Australia. 1. Petrology and volcanology of host rocks
Mineralium Deposita
Icelandic analogs to Martian flood lavas
Geochemistry Geophysics Geosystems
2003
Sulphur release from flood lava eruptions in the Veidivötn, Grímsvötn and Katla volcanic systems, Iceland
Geological Society Special Publication
Atmospheric and environmental effects of the 1783–1784 Laki eruption: A review and reassessment
Journal of Geophysical Research
The Emperor Seamounts: Southward motion of the Hawaiian hotspot plume in earth's mantle
Science
Atmospheric and environmental effects of the 1783-1784 Laki eruption: A review and reassessment
Journal of Geophysical Research D: Atmospheres
Atmospheric and environmental effects of the 1783-1784 Laki eruption: A review and reassessment
Journal of Geophysical Research-Atmospheres
2002
Endogenous growth: It's role in the formation of internal pathways and the emplacement of mafic flow fields
Geochimica Et Cosmochimica Acta
Emplacement of komatiite flow fields: An inflationary model based on field evidence and modern mafic analogues
Geochimica Et Cosmochimica Acta
Bimodal komatiite-dacite volcanism in the Black Swan area, Norseman-Wiluna Greenstone Belt, Australia
Geochimica Et Cosmochimica Acta
Decoupled hybrid boundary layers at the base of komatiite lava pathways: Omnipresent components of actively eroding lava pathways
Geochimica Et Cosmochimica Acta
2001
New estimates of sulfur degassing and atmospheric mass-loading by the 934 AD Eldgja eruption, Iceland
Journal of Volcanology and Geothermal Research
Rootless cones on Mars indicating the presence of shallow equatorial ground ice in recent times
Geophysical Research Letters
Rootless cones on Mars indicating the presence of shallow equatorial ground ice in recent times
Geophysical Research Letters
2000
Discussion of: "Pulsed inflation of pahoehoe lava flows: implications for flood basalt emplacement", by S.W. Anderson, E.R. Stofan, E.R. Smrekar, J.E. Guest and B. Wood [Earth Planet. Sci. Lett. 168 (1999) 7-18]
Earth and Planetary Science Letters
Magma origin and evolution of White Island (Whakaari) volcano, Bay of Plenty, New Zealand
Journal of Petrology
Terrestrial analogs and thermal models for Martian flood lavas
Journal of Geophysical Research-Planets
1999
Petrologic investigations of the 1995 and 1996 eruptions of Ruapehu volcano, New Zealand: formation of discrete and small magma pockets and their intermittent discharge
Bulletin of Volcanology
1998
The Roza Member, Columbia River Basalt Group: A gigantic pahoehoe lava flow field formed by endogenous processes?
Journal of Geophysical Research-Solid Earth
The importance of pahoehoe
Annual Review of Earth and Planetary Sciences
The Roza member, Columbia River Basalt Group: A gigantic pahoehoe lava flow field formed by endogenous processes?
Journal of Geophysical Research: Solid Earth
1997
A radiocarbon age determination for Mount Edgecumbe (Putauaki) volcano, Bay of Plenty, New Zealand
New Zealand Journal of Geology and Geophysics
A radiocarbon age determination for Mount Edgecumbe (Putauaki) volcano, Bay of Plenty, New Zealand
New Zealand Journal of Geology and Geophysics
Emplacement of continental flood basalt lava flows
Geophysical Monograph Series
1996
Sulfur, chlorine, and fluorine degassing and atmospheric loading by the 1783-1784 AD Laki (Skaftar fires) eruption in Iceland
Bulletin of Volcanology
A new model for the emplacement of Columbia River Basalts as large, inflated pahoehoe lava flow fields
Geophysical Research Letters
Sulfur, chlorine and fluorine degassing and atmospheric loading by the Roza eruption, Columbia River Basalt Group, Washington, USA
Journal of Volcanology and Geothermal Research
1995
A MULTIFREQUENCY LABORATORY INVESTIGATION OF ATTENUATION AND SCATTERING FROM VOLCANIC ASH CLOUDS
Ieee Transactions on Geoscience and Remote Sensing
1994
ATMOSPHERIC AEROSOL LOADING AND TRANSPORT DUE TO THE 1783-84 LAKI ERUPTION IN ICELAND, INTERPRETED FROM ASH PARTICLES AND ACIDITY IN THE GISP2 ICE CORE
Quaternary Research
1993
THE LAKI (SKAFTAR-FIRES) AND GRIMSVOTN ERUPTIONS IN 1783-1785
Bulletin of Volcanology
1992
The 1991 eruption of Hekla, Iceland
Bulletin of Volcanology
Correction to “Extreme magma homogeneity in the 1783-84 Lakagigar Eruption: ORigin of a large volume of evolved basalt in Iceland” by Olgeir Sigmarsson, Michel Condomines, Karl Gronvold, and Thorvaldur Thordarson
Geophysical Research Letters
THE 1991 ERUPTION OF HEKLA, ICELAND
Bulletin of Volcanology
Correction to “Extreme magma homogeneity in the 1783–84 Lakagigar Eruption: ORigin of a large volume of evolved basalt in Iceland” by Olgeir Sigmarsson, Michel Condomines, Karl Gronvold, and Thorvaldur Thordarson
Geophysical Research Letters
1991
EXTREME MAGMA HOMOGENEITY IN THE 1783-84 LAKAGIGAR ERUPTION - ORIGIN OF A LARGE VOLUME OF EVOLVED BASALT IN ICELAND
Geophysical Research Letters
Keywords for Specialisation:
Volcanology
Petrology
Paleoclimatology
Natural hazards
Geology of mineralized succession
About UI
Schools and Faculties
School of Education
About the School
Administration and Staff
Collaboration
Ukraine
Cooperation with Russia
Promotional Material
Photo Gallery
Events
Rules and Regulations
Research
Research at our School
Doctoral Studies
Educational Research Institute
Support Services
Student Office
Facilities
School of Engineering and Natural Sciences
About the School
Board and staff
Courses taught in English at the School of Engineering and Natural Sciences
Research
Doctoral Studies
Support Services
SENS Student Service
School of Health Sciences
About the School
Administration
School of Health Sciences staff
Collaboration
Events
Research
Research support
Support Services
School Office
Student Support
School of Humanities
About the School
About the School
Administration & Staff
Collaboration
Research
Support Services
School of Social Sciences
About the School
Research
Support Services
Faculties from A-Z
Business Administration
Studies
Research
The Faculty
Administration and Staff
Civil and Environmental Engineering
Studies
Research
Research projects
The Faculty
Administration and Staff
Earth Sciences
Studies
Earth Science for Exchange Students
Research
The Faculty
Administration and Staff
Economics
Studies
Research
PhD Program in Economics
The Faculty
Administration and Staff
Education and Diversity
Studies
Student Orientation
Timetables
Research
The Faculty
Administration and Staff
Education and Pedagogy
Studies
Student Orientation
Timetables
Research
The Faculty
Administration and Staff
Electrical and Computer Engineering
Studies
Research
Research projects
The Faculty
Administration and Staff
Food Science and Nutrition
Studies
Student Orientation
Undergraduate Studies
Graduate Studies
International Master´s programme in Food Science
Admission Requirements
Admission Requirements
Research
NEPHN
PhD Studies
Research Institutes
Research Projects at the Faculty
The F&N day
The Faculty
Facilities
Administration and Board
Collaboration
Staff
Health Promotion, Sports and Leisure Studies
Studies
Student Orientation
Timetables
Research
The Faculty
Administration and Staff
History and Philosophy
Studies
Research
The Faculty
Administration and staff
Icelandic and Comparative Cultural Studies
Studies
Research
The Faculty
Administration and staff
About the Faculty
Industrial Engineering, Mechanical Engineering and Computer Science
Studies
Research
Research projects
The Faculty
Administration and Staff
Languages and Cultures
Studies
Research
The Faculty
Administration and staff
About the Faculty
Law
Studies
Admission Requirements
Research
Research Institutes at the Faculty of Law
PhD Studies
Joint Ph.D Programme with the University of Copenhagen
The Faculty
About the Faculty
Administration and Staff
Life and Environmental Sciences
Studies
Life- and Environmental Science for Exchange Students
Research
Research projects
The Faculty
Administration and Staff
Medicine
Studies
Admission Requirements
Undergraduate studies
Graduate Studies
Research
Fields in medicine
Student Research Projects
Research institutes
The Faculty
Faculty staff
Faculty administration
Collaboration
The facilities
Faculty rules
Nursing
Studies
Admission requirements
Research
The Faculty
Faculty Administration
Faculty Staff
Facilities
Odontology
Studies
Research
The Faculty
Administration and Staff
Pharmaceutical Sciences
Studies
Research
The Faculty
Physical Sciences
Studies
Research
Research projects
The Faculty
Administration and Staff
Political Science
Studies
Why Reykjavík?
Research
The Faculty
Administration and Staff
Psychology
Studies
Admission Requirements
Research
The Faculty
Administration and Staff
Sociology, Anthropology and Folkloristics
Studies
Why Iceland for an MA in Sociology?
Research
The Faculty
Administration and Staff
Social Work
Studies
Student Orientation
Research
Research Institutes
The Faculty
Administration and Staff
Subject Teacher Education
Studies
Student Orientation
Timetables
Research
The Faculty
Administration and Staff
Theology and Religious Studies
Studies
Research
The Faculty
Administration and staff
About the Faculty
Governance
Rector
Pro-Rectors
About Pro-rectors
Pro-Rector for Academic Affairs and Development
Pro-Rector for Science
Office of the Rector
General information
The University Archives
Structure
University Council
University Council Committees
University Forum
Regulations of UI
Internal Auditing
Central Administration
Academic Affairs
Centre for Teaching and Learning
Finance
Division of Finance
Payroll office
Accounting department
Human Resources
Information Technology
International Division
Marketing and Public Relations
Operations and Resources
Science and Innovation
Human Resource
International Staff Services
Accommodation Options
Family
Financial Considerations
On Arrival
Residence and Work Permit
Human Resource Policy
University of Iceland Family Policy
Staff Exchanges
Vacancies
About the University
Equality and Diversity
Equality and Diversity in the University of Iceland
Academia and Multiculturalism
Equal Rights Policy
Rules of Procedure on the Response to Gender-related Harassment
Sustainability and Environment
Arts
University concerts
History
Honorary Degrees
Short history of the University
Quality Assurance
Standards and Requirements for the Quality of Doctoral Programmes
Standards and Requirements, Quality of Master's Programmes
Policies
Strategy 2021-2026
Values of the University
Other policies and plans
University of Iceland Quality Assurance Policy
Code of Ethics
Equality and Diversity
Equality and Diversity action plan
Health and Safety Policy
Language Policy
Data Protection Policy
Sustainability and Environment
Green Steps for Public Organizations
Recycling: What to put where?
What can I do?
The UI's goals on minimizing effects of climate change
Sustainability at the University
Promotional Material
News
Brand Manual
Current promotional material
Photo Gallery
Facts and figures
The University
Search for a specialist
Event registration
Collaboration
Domestic Collaboration
Roadmap to Research Infrastructures
Centre for Digital Humanities and Arts (CDHA, MSHL)
Chemical analysis, from atoms to biomolecules (EFNGREIN)
Chemical analysis Instruments
EPOS Iceland
From molecules to precision medicine (SAMSNIÐ)
Icelandic Research e-Infrastructure (IREI)
Materials Science & Engineering Centre (MSE-Lab)
Public Universities Network
Icelandic Rectors' Conference
University Hospital
International Collaboration
International Division
Partner Universities
edX
Students
News
NUAS
IAU
Erasmus+
Nordplus
Ukraine
FAQ for prospective students affected by the war in Ukraine
Aurora
Aurora Cooperation
For Students
For Staff
Work Packages
Business
UI Science Park
Students' Employment Agency
Society
Community Projects
Sprettur
Student Community Projects
Alumni
UI Alumni
Former employees
Research
Innovation
Innovation at UI
Start-ups
Service and Counseling
Research at the University
Division of Science and Innovation
Graduate School
Funds and Grants
Funds and Scholarships
University of Iceland Funds
Institutions and Centres
Research Institutions
Research Centres
Collaboration
Icelandic Rectors' Conference
Open Access
Open Access at UI
Open Access policy
ROCS Research Centre
Committees
Science Committee
Science Ethics Committee
Study
Programmes
What do you want to study?
International Programmes
About international programmes
Undergraduate studies A-Z
Graduate studies A-Z
PhD Programmes
Language Programmes
Interdisciplinary Studies
Applications for study
Incoming Exchange Studies
International exchange students
Home university nomination
Partner Universities - Database
Outgoing Exchange Studies
Applications for exchange studies
Destinations
Requirements for Exchange Studies
Grants and funding
The exchange process step-by-step
Partner Universities
Partner Universities by Country
Exchange programmes
Traineeship Abroad
Summer Abroad
Distance Education
Study Information
New Students
Access to Ugla and the IT system
Checklist for new students
Study Information
Academic Calendar
Course Catalogue
Timetables
Examinations
Credit System
Credit System and Grades
Credit transfer
Graduation
Application
Apply to study at UI
Applications
Information for Applicants
Communication Portal
International Students
Admission Requirements
Supporting Documents
Registration Fees
Proof of English Proficiency
Requirements
TOEFL test
Registration and Student Permit
Student residence permit for non-EEA/EFTA citizens
Registering in Iceland for EEA/EFTA citizens
Registering in Iceland for Nordic Citizens
Services
Service Desk
Student Registration
Student Counselling Centre
Academic and Career Counselling
Academic counselling
Career counselling
Careers Connection
Name change for trans students
Disability Services
Who can claim services?
Examinations
For Teachers
Psychological Services
Psychological Services
Cultural Adjustment
More added support resources
Seasonal affective disorder (SAD)
Panic Attacks and Panic Disorder
IT support
University Centre
Living in Iceland
Student Life
Housing
Living Costs
Transportation
Support
Libraries and Bookstores
Center for Writing
Language Centre
About the Language Centre
Self-Directed Language Learning
Courses for Students and Staff
International Cooperation
Language Certificates
Online Dictionaries
Student Council
Facilities
University Centre
Study and Computer Facilities
Food and Drinks
University Buildings
Rent a Classroom
Rules
Sports Facilities
Kindergarten and Child Care