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’m a Swedish Research Council supported Research Fellow at Uppsala University, Sweden and also a Research Associate at the National Institute for Geophysics and Volcanology (INGV) in Rome, Italy. My research looks at volcanoes and Large Igneous Provinces (LIPs) and their effects on the environment using geochemistry and experimental petrology. I 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
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
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
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
Part of Journal of Petrology, 2020
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
Forensic Probe of Bali’s Great Volcano
Part of EOS, p. 26-30, 2019
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
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
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
Magma plumbing for the 2014–2015 Holuhraun eruption, Iceland
Part of Geochemistry Geophysics Geosystems, p. 2953-2968, 2016
Part of Chemical Geology, p. 1-10, 2016
The stiff upper LIP: investigating the High Arctic Large Igneous Province
Part of Geology Today, p. 92-98, 2016
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
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
Part of Geochemistry Geophysics Geosystems, p. 2127-2146, 2015
Part of Earth-Science Reviews, p. 168-200, 2015
CO2 bubble generation and migration during magma–carbonate interaction
Part of Contributions to Mineralogy and Petrology, 2015
Magmatic differentiation processes at Merapi Volcano: inclusion petrology and oxygen isotopes
Part of Journal of Volcanology and Geothermal Research, p. 38-49, 2013
Part of Chemical Geology, p. 324-344, 2012
Fast and furious; crustal CO2 loss at Merapi volcano, Indonesia.
Part of Geology Today, p. 63-64, 2011
Part of Journal of Petrology, p. 1027-1051, 2010
Recent publications
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
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?
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
Part of Geological Society of America Bulletin, p. 1982-2006, 2024
The Magma Plumbing System of Merapi: The Petrological Perspective
Part of Merapi Volcano, p. 233-263, Springer, 2023
All publications
Articles in journal
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
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?
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
Part of Geological Society of America Bulletin, p. 1982-2006, 2024
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
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
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
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
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
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
Part of Lithos, p. 107328-107328, 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
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
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
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
Part of Journal of Petrology, 2022
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
Large-scale lava dome fracturing as a result of concealed weakened zones
Part of Geology, p. 1346-1350, 2022
The tensile strength of hydrothermally altered volcanic rocks
Part of Journal of Volcanology and Geothermal Research, 2022
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
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
The tensile strength of volcanic rocks: Experiments and models
Part of Journal of Volcanology and Geothermal Research, 2021
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
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
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
Ancient oral tradition in Central Java warns of volcano-earthquake interaction
Part of Geology Today, p. 100-109, 2021
A message from the 'underground forge of the gods': history and current eruptions at Mt Etna
Part of Geology Today, p. 141-149, 2021
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
Part of Journal of Petrology, 2020
The thermal properties of porous andesite
Part of Journal of Volcanology and Geothermal Research, 2020
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
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
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
Forensic Probe of Bali’s Great Volcano
Part of EOS, p. 26-30, 2019
Part of Lithos, 2019
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
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
Exceptionally high whole-rock delta O-18 values in intra-caldera rhyolites from Northeast Iceland
Part of Mineralogical magazine, p. 1147-1168, 2018
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
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
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
Magma plumbing for the 2014–2015 Holuhraun eruption, Iceland
Part of Geochemistry Geophysics Geosystems, p. 2953-2968, 2016
Part of Chemical Geology, p. 1-10, 2016
The stiff upper LIP: investigating the High Arctic Large Igneous Province
Part of Geology Today, p. 92-98, 2016
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
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
Part of Geochemistry Geophysics Geosystems, p. 2127-2146, 2015
Nannofossils in 2011 El Hierro eruptive products reinstate plume model for Canary Islands
Part of Scientific Reports, p. 7945, 2015
Ancient oral tradition describes volcano-earthquake interaction at Merapi volcano, Indonesia.
Part of Geografiska Annaler. Series A, Physical Geography, p. 137-166, 2015
Part of Earth-Science Reviews, p. 168-200, 2015
Nannofossils: the smoking gun for the Canarian hotspot
Part of Geology Today, p. 137-145, 2015
CO2 bubble generation and migration during magma–carbonate interaction
Part of Contributions to Mineralogy and Petrology, 2015
Time-monitored vesiculation processes in magma-carbonate interaction experiments
Part of Contributions to Mineralogy and Petrology, 2014
Magmatic differentiation processes at Merapi Volcano: inclusion petrology and oxygen isotopes
Part of Journal of Volcanology and Geothermal Research, p. 38-49, 2013
Experimental simulation of magma-carbonate interaction beneath Mt. Vesuvius, Italy
Part of Contributions to Mineralogy and Petrology, p. 1335-1353, 2013
Part of Bulletin of Volcanology, p. 963-980, 2012
Crustal CO2 liberation during the 2006 eruption and earthquake events at Merapi volcano, Indonesia
Part of Geophysical Research Letters, 2012
Part of Chemical Geology, p. 324-344, 2012
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
Part of Contributions to Mineralogy and Petrology, p. 651-669, 2011
Fast and furious; crustal CO2 loss at Merapi volcano, Indonesia.
Part of Geology Today, p. 63-64, 2011
Part of Journal of Petrology, p. 1027-1051, 2010
Part of Journal of Petrology, p. 1027-1051, 2010
Part of Journal of Petrology, p. 1027-1051, 2010
Boron isotopes in feldspar: Tracing magmatic processes on Gran Canaria
Part of Geophysical Research Abstracts, 2010
Chapters in book
The Magma Plumbing System of Merapi: The Petrological Perspective
Part of Merapi Volcano, p. 233-263, Springer, 2023
Magma-Carbonate Interaction at Merapi Volcano, Indonesia
Part of Merapi Volcano, p. 291-321, Springer, 2023
Pre-Teide Volcanic Activity on the Northeast Volcanic Rift Zone
Part of Teide Volcano, p. 75-92, Springer Berlin/Heidelberg, 2013
Part of Teide Volcano, p. 191-211, Springer Berlin/Heidelberg, 2013
Part of Teide Volcano, p. 173-190, Springer Berlin/Heidelberg, 2013
Comprehensive doctoral thesis
Conference papers
Rapid high-silica magma generation in basalt-dominated rift settings
p. 13103, 2015
The sub-Plinian eruption of Kelut volcano, 13th February 2014
2014
Significance of 2011/201 El Hierro xeno-pumice
2014
Reconstructing the plumbing system of Krakatau volcano
2014
Origin and significance of the 2011 El Hierro xeno-pumice
2014
Canary Island volcanism: fracture induced or mantle plume related?
2014
Ancient oral tradition describes volcano-earthquake interaction at Merapi volcano, Indonesia
2014
Magma storage at Krakatau volcanic complex
2014
The role of CO2-rich basement at Merapi; perspectives from petrology, geochemistry, and experiments
2014
2014
Toba super-eruption fuelled by catastrophic roof disintegration
2014
p. 690, 2013
Tracing crustal contamination along the Java segment of the Sunda Arc, Indonesia
2012
2012
Tracing crustal contamination along the Java segment of the Sunda Arc, Indonesia
2012
Magmatic vs crustal volatiles: a reconnaissance tool for geothermal energy
2012