Frances Deegan
Researcher at Department of Earth Sciences; Natural Resources and Sustainable Development
- Telephone:
- +46 18 471 25 50
- E-mail:
- Frances.Deegan@geo.uu.se
- Visiting address:
- Villavägen 16
75236 Uppsala - Postal address:
- Villavägen 16
75236 Uppsala
Short presentation
I am a Swedish Research Council supported Research Fellow at Uppsala University, Sweden. My research aims to understand magmatic processes using geochemistry and experimental petrology. I am especially interesed in Large Igneous Provinces (LIPs) and their effects on the environment and was recently awarded a project grant from the Swedish Research Council to work on LIPs including the High Arctic, Franklin, and Siberia.
Keywords
- experimental petrology
- volcanoes
- large igneous provinces (lips)
- environmental effect of lips
- isotopic micro-analysis
Biography
I completed my Bachelor degree in Geology at Trinity College Dublin in 2006 and obtained my PhD from Uppsala University in 2010. After that, I undertook Vetenskapsrådet-funded post-doctoral research at the NordSIM laboratory in the Swedish Museum of Natural History, Stockholm from 2011-2013. I followed that up with a 18-month period of teaching undergraduate Mineralogy and Metamorphic Petrology courses and a Masters course in Field Studies at Stockholm University while simultaneously beginning research at Uppsala University (UU) with the support of a Vetenskapsrådet Young Researcher grant. Most recently, I have been involved in an exciting research project with the Canadian Geological Survey looking at magma-sedimentary rock interaction in the High Arctic Large Igneous Province.

Publications
Selection of publications
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Part of Terra Nova, p. 447-456, 2024
- DOI for The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?
- Download full text (pdf) of The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?
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Part of Nature Communications, 2022
- DOI for Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland
- Download full text (pdf) of Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland
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Sunda arc mantle source delta O-18 value revealed by intracrystal isotope analysis
Part of Nature Communications, 2021
- DOI for Sunda arc mantle source delta O-18 value revealed by intracrystal isotope analysis
- Download full text (pdf) of Sunda arc mantle source delta O-18 value revealed by intracrystal isotope analysis
Recent publications
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CO2 fluxing and carbon assimilation by arc melts during magma-limestone interaction
Part of Chemical Geology, 2026
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Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland
Part of Geochemistry Geophysics Geosystems, 2025
- DOI for Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland
- Download full text (pdf) of Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland
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Part of Geochemistry Geophysics Geosystems, 2025
- DOI for Explosive Ocean Island Volcanism Explained by High Magmatic Water Content Determined Through Nominally Anhydrous Minerals
- Download full text (pdf) of Explosive Ocean Island Volcanism Explained by High Magmatic Water Content Determined Through Nominally Anhydrous Minerals
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Part of Terra Nova, p. 447-456, 2024
- DOI for The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?
- Download full text (pdf) of The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?
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Part of Journal of Petrology, 2024
- DOI for Dynamic Evolution of the Transcrustal Plumbing System in Large Igneous Provinces: Geochemical and Microstructural Insights from Glomerocrysts and Melt Inclusions
- Download full text (pdf) of Dynamic Evolution of the Transcrustal Plumbing System in Large Igneous Provinces: Geochemical and Microstructural Insights from Glomerocrysts and Melt Inclusions
All publications
Articles in journal
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CO2 fluxing and carbon assimilation by arc melts during magma-limestone interaction
Part of Chemical Geology, 2026
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Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland
Part of Geochemistry Geophysics Geosystems, 2025
- DOI for Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland
- Download full text (pdf) of Origin of Silicic Magmatism at the Katla Volcanic Complex, South Iceland
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Part of Geochemistry Geophysics Geosystems, 2025
- DOI for Explosive Ocean Island Volcanism Explained by High Magmatic Water Content Determined Through Nominally Anhydrous Minerals
- Download full text (pdf) of Explosive Ocean Island Volcanism Explained by High Magmatic Water Content Determined Through Nominally Anhydrous Minerals
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Part of Terra Nova, p. 447-456, 2024
- DOI for The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?
- Download full text (pdf) of The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland?
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Part of Journal of Petrology, 2024
- DOI for Dynamic Evolution of the Transcrustal Plumbing System in Large Igneous Provinces: Geochemical and Microstructural Insights from Glomerocrysts and Melt Inclusions
- Download full text (pdf) of Dynamic Evolution of the Transcrustal Plumbing System in Large Igneous Provinces: Geochemical and Microstructural Insights from Glomerocrysts and Melt Inclusions
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Part of Geological Society of America Bulletin, p. 1982-2006, 2024
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Part of Lithos, 2023
- DOI for Disequilibrium in historic volcanic rocks from Fogo, Cape Verde traces carbonatite metasomatism of recycled ocean crust
- Download full text (pdf) of Disequilibrium in historic volcanic rocks from Fogo, Cape Verde traces carbonatite metasomatism of recycled ocean crust
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Silicic frothy xenoliths (xeno-pumice) in recent volcanics from Gran Canaria, Canary Islands
Part of Journal of Volcanology and Geothermal Research, 2023
- DOI for Silicic frothy xenoliths (xeno-pumice) in recent volcanics from Gran Canaria, Canary Islands
- Download full text (pdf) of Silicic frothy xenoliths (xeno-pumice) in recent volcanics from Gran Canaria, Canary Islands
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Driving Global Change One LIP at a Time
Part of Elements, p. 269-275, 2023
- DOI for Driving Global Change One LIP at a Time
- Download full text (pdf) of Driving Global Change One LIP at a Time
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Part of Geochemistry Geophysics Geosystems, 2023
- DOI for Age and Geochemistry of High Arctic Large Igneous Province Tholeiitic Magmatism in NW Axel Heiberg Island, Canada
- Download full text (pdf) of Age and Geochemistry of High Arctic Large Igneous Province Tholeiitic Magmatism in NW Axel Heiberg Island, Canada
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Reported ultra-low lava viscosities from the 2021 La Palma eruption are potentially biased
Part of Nature Communications, 2023
- DOI for Reported ultra-low lava viscosities from the 2021 La Palma eruption are potentially biased
- Download full text (pdf) of Reported ultra-low lava viscosities from the 2021 La Palma eruption are potentially biased
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Water in clinopyroxene from the 2021 Geldingadalir eruption of the Fagradalsfjall Fires, SW-Iceland
Part of Bulletin of Volcanology, 2023
- DOI for Water in clinopyroxene from the 2021 Geldingadalir eruption of the Fagradalsfjall Fires, SW-Iceland
- Download full text (pdf) of Water in clinopyroxene from the 2021 Geldingadalir eruption of the Fagradalsfjall Fires, SW-Iceland
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Deep magma storage during the 2021 La Palma eruption
Part of Science Advances, 2023
- DOI for Deep magma storage during the 2021 La Palma eruption
- Download full text (pdf) of Deep magma storage during the 2021 La Palma eruption
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Part of Lithos, 2023
- DOI for Boron isotope variations in a single monogenetic cone: La Poruña (21°53′S, 68°30′W), Central Andes, Chile
- Download full text (pdf) of Boron isotope variations in a single monogenetic cone: La Poruña (21°53′S, 68°30′W), Central Andes, Chile
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Part of Earth and Planetary Science Letters, 2023
- DOI for Porosity, strength, and alteration - Towards a new volcano stability assessment tool using VNIR-SWIR reflectance spectroscopy
- Download full text (pdf) of Porosity, strength, and alteration - Towards a new volcano stability assessment tool using VNIR-SWIR reflectance spectroscopy
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Part of Nature Communications, 2022
- DOI for Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland
- Download full text (pdf) of Diverse mantle components with invariant oxygen isotopes in the 2021 Fagradalsfjall eruption, Iceland
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Part of Journal of Petrology, 2022
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Part of Scientific Reports, 2022
- DOI for Hidden mechanical weaknesses within lava domes provided by buried high-porosity hydrothermal alteration zones
- Download full text (pdf) of Hidden mechanical weaknesses within lava domes provided by buried high-porosity hydrothermal alteration zones
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Large-scale lava dome fracturing as a result of concealed weakened zones
Part of Geology, p. 1346-1350, 2022
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The tensile strength of hydrothermally altered volcanic rocks
Part of Journal of Volcanology and Geothermal Research, 2022
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Mantle source characteristics and magmatic processes during the 2021 La Palma eruption
Part of Earth and Planetary Science Letters, 2022
- DOI for Mantle source characteristics and magmatic processes during the 2021 La Palma eruption
- Download full text (pdf) of Mantle source characteristics and magmatic processes during the 2021 La Palma eruption
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Sunda arc mantle source delta O-18 value revealed by intracrystal isotope analysis
Part of Nature Communications, 2021
- DOI for Sunda arc mantle source delta O-18 value revealed by intracrystal isotope analysis
- Download full text (pdf) of Sunda arc mantle source delta O-18 value revealed by intracrystal isotope analysis
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The tensile strength of volcanic rocks: Experiments and models
Part of Journal of Volcanology and Geothermal Research, 2021
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Part of Contributions to Mineralogy and Petrology, 2021
- DOI for Geochemistry of deep Tunguska Basin sills, Siberian Traps: correlations and potential implications for the end-Permian environmental crisis
- Download full text (pdf) of Geochemistry of deep Tunguska Basin sills, Siberian Traps: correlations and potential implications for the end-Permian environmental crisis
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Part of Journal of Petrology, 2021
- DOI for Geochemical Systematics of High Arctic Large Igneous Province Continental Tholeiites from Canada-Evidence for Progressive Crustal Contamination in the Plumbing System
- Download full text (pdf) of Geochemical Systematics of High Arctic Large Igneous Province Continental Tholeiites from Canada-Evidence for Progressive Crustal Contamination in the Plumbing System
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High Arctic Large Igneous Province Alkaline Rocks in Canada: Evidence for Multiple Mantle Components
Part of Journal of Petrology, 2021
- DOI for High Arctic Large Igneous Province Alkaline Rocks in Canada: Evidence for Multiple Mantle Components
- Download full text (pdf) of High Arctic Large Igneous Province Alkaline Rocks in Canada: Evidence for Multiple Mantle Components
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Ancient oral tradition in Central Java warns of volcano-earthquake interaction
Part of Geology Today, p. 100-109, 2021
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A message from the 'underground forge of the gods': history and current eruptions at Mt Etna
Part of Geology Today, p. 141-149, 2021
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Part of Scientific Reports, 2020
- DOI for Constraining the sub-arc, parental magma composition for the giant Altiplano-Puna Volcanic Complex, northern Chile
- Download full text (pdf) of Constraining the sub-arc, parental magma composition for the giant Altiplano-Puna Volcanic Complex, northern Chile
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Part of Journal of Petrology, 2020
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The thermal properties of porous andesite
Part of Journal of Volcanology and Geothermal Research, 2020
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Hydrothermal alteration of andesitic lava domes can lead to explosive volcanic behaviour
Part of Nature Communications, 2019
- DOI for Hydrothermal alteration of andesitic lava domes can lead to explosive volcanic behaviour
- Download full text (pdf) of Hydrothermal alteration of andesitic lava domes can lead to explosive volcanic behaviour
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Part of Scientific Reports, 2019
- DOI for Crustal CO2 contribution to subduction zone degassing recorded through calc-silicate xenoliths in arc lavas
- Download full text (pdf) of Crustal CO2 contribution to subduction zone degassing recorded through calc-silicate xenoliths in arc lavas
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Part of Geology Today, p. 55-62, 2019
- DOI for Sacred ground; the Maipés necropolis of north-west Gran Canaria: the Maipés necropolis of north-west Gran Canaria
- Download full text (pdf) of Sacred ground; the Maipés necropolis of north-west Gran Canaria: the Maipés necropolis of north-west Gran Canaria
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Forensic Probe of Bali’s Great Volcano
Part of EOS, p. 26-30, 2019
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Part of Lithos, 2019
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An Integrative Research Framework to Unravel the Interplay of Natural Hazards and Vulnerabilities
Part of Earth's Future, p. 305-310, 2018
- DOI for An Integrative Research Framework to Unravel the Interplay of Natural Hazards and Vulnerabilities
- Download full text (pdf) of An Integrative Research Framework to Unravel the Interplay of Natural Hazards and Vulnerabilities
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Multi-level magma plumbing at Agung and Batur volcanoes increases risk of hazardous eruptions
Part of Scientific Reports, 2018
- DOI for Multi-level magma plumbing at Agung and Batur volcanoes increases risk of hazardous eruptions
- Download full text (pdf) of Multi-level magma plumbing at Agung and Batur volcanoes increases risk of hazardous eruptions
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Exceptionally high whole-rock delta O-18 values in intra-caldera rhyolites from Northeast Iceland
Part of Mineralogical magazine, p. 1147-1168, 2018
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Magma reservoir dynamics at Toba caldera, Indonesia, recorded by oxygen isotope zoning in quartz
Part of Scientific Reports, 2017
- DOI for Magma reservoir dynamics at Toba caldera, Indonesia, recorded by oxygen isotope zoning in quartz
- Download full text (pdf) of Magma reservoir dynamics at Toba caldera, Indonesia, recorded by oxygen isotope zoning in quartz
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Volcanic particles in agriculture and gardening
Part of Geology Today, p. 148-154, 2017
- DOI for Volcanic particles in agriculture and gardening
- Download full text (pdf) of Volcanic particles in agriculture and gardening
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Boron isotope fractionation in magma via crustal carbonate dissolution
Part of Scientific Reports, 2016
- DOI for Boron isotope fractionation in magma via crustal carbonate dissolution
- Download full text (pdf) of Boron isotope fractionation in magma via crustal carbonate dissolution
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Magma plumbing for the 2014–2015 Holuhraun eruption, Iceland
Part of Geochemistry Geophysics Geosystems, p. 2953-2968, 2016
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Part of Chemical Geology, p. 1-10, 2016
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The stiff upper LIP: investigating the High Arctic Large Igneous Province
Part of Geology Today, p. 92-98, 2016
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Heterogeneous vesiculation of 2011 El Hierro xeno-pumice revealed by X-ray computed microtomography
Part of Bulletin of Volcanology, 2016
- DOI for Heterogeneous vesiculation of 2011 El Hierro xeno-pumice revealed by X-ray computed microtomography
- Download full text (pdf) of Heterogeneous vesiculation of 2011 El Hierro xeno-pumice revealed by X-ray computed microtomography
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Volatile dilution during magma injections and implications for volcano explosivity
Part of Geology, p. 1027-1030, 2016
- DOI for Volatile dilution during magma injections and implications for volcano explosivity
- Download full text (pdf) of Volatile dilution during magma injections and implications for volcano explosivity
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Nannofossils: the smoking gun for the Canarian hotspot
Part of Geology Today, p. 137-145, 2015
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Part of Geochemistry Geophysics Geosystems, p. 2127-2146, 2015
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Nannofossils in 2011 El Hierro eruptive products reinstate plume model for Canary Islands
Part of Scientific Reports, p. 7945, 2015
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Ancient oral tradition describes volcano-earthquake interaction at Merapi volcano, Indonesia.
Part of Geografiska Annaler. Series A, Physical Geography, p. 137-166, 2015
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Part of Earth-Science Reviews, p. 168-200, 2015
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CO2 bubble generation and migration during magma–carbonate interaction
Part of Contributions to Mineralogy and Petrology, 2015
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Time-monitored vesiculation processes in magma-carbonate interaction experiments
Part of Contributions to Mineralogy and Petrology, 2014
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Magmatic differentiation processes at Merapi Volcano: inclusion petrology and oxygen isotopes
Part of Journal of Volcanology and Geothermal Research, p. 38-49, 2013
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Experimental simulation of magma-carbonate interaction beneath Mt. Vesuvius, Italy
Part of Contributions to Mineralogy and Petrology, p. 1335-1353, 2013
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Crustal CO2 liberation during the 2006 eruption and earthquake events at Merapi volcano, Indonesia
Part of Geophysical Research Letters, 2012
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Part of Bulletin of Volcanology, p. 963-980, 2012
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Part of Chemical Geology, p. 324-344, 2012
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Part of Solid Earth, p. 97-110, 2012
- DOI for Floating stones off El Hierro, Canary Islands: xenoliths of pre-island sedimentary origin in the early products of the October 2011 eruption
- Download full text (pdf) of Floating stones off El Hierro, Canary Islands: xenoliths of pre-island sedimentary origin in the early products of the October 2011 eruption
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Part of Contributions to Mineralogy and Petrology, p. 651-669, 2011
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Fast and furious; crustal CO2 loss at Merapi volcano, Indonesia.
Part of Geology Today, p. 63-64, 2011
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Part of Journal of Petrology, p. 1027-1051, 2010
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Part of Journal of Petrology, p. 1027-1051, 2010
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Part of Journal of Petrology, p. 1027-1051, 2010
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Boron isotopes in feldspar: Tracing magmatic processes on Gran Canaria
Part of Geophysical Research Abstracts, 2010
Chapters in book
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The Magma Plumbing System of Merapi: The Petrological Perspective
Part of Merapi Volcano, p. 233-263, Springer, 2023
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Magma-Carbonate Interaction at Merapi Volcano, Indonesia
Part of Merapi Volcano, p. 291-321, Springer, 2023
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Pre-Teide Volcanic Activity on the Northeast Volcanic Rift Zone
Part of Teide Volcano, p. 75-92, Springer Berlin/Heidelberg, 2013
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Part of Teide Volcano, p. 191-211, Springer Berlin/Heidelberg, 2013
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Part of Teide Volcano, p. 173-190, Springer Berlin/Heidelberg, 2013
Comprehensive doctoral thesis
Conference papers
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Rapid high-silica magma generation in basalt-dominated rift settings
p. 13103, 2015
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The sub-Plinian eruption of Kelut volcano, 13th February 2014
2014
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2014
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Toba super-eruption fuelled by catastrophic roof disintegration
2014
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Canary Island volcanism: fracture induced or mantle plume related?
2014
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Significance of 2011/201 El Hierro xeno-pumice
2014
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Reconstructing the plumbing system of Krakatau volcano
2014
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Origin and significance of the 2011 El Hierro xeno-pumice
2014
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Ancient oral tradition describes volcano-earthquake interaction at Merapi volcano, Indonesia
2014
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Magma storage at Krakatau volcanic complex
2014
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The role of CO2-rich basement at Merapi; perspectives from petrology, geochemistry, and experiments
2014
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p. 690, 2013
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Tracing crustal contamination along the Java segment of the Sunda Arc, Indonesia
2012
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2012
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Tracing crustal contamination along the Java segment of the Sunda Arc, Indonesia
2012
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Magmatic vs crustal volatiles: a reconnaissance tool for geothermal energy
2012