0000000001058774

AUTHOR

Lucia Gurioli

showing 3 related works from this author

Modern Multispectral Sensors Help Track Explosive Eruptions

2013

Due to its massive air traffic impact, the 2010 eruption of Eyjafjallajokull was felt by millions of people and cost airlines more than U.S. $1.7 billion. The event has, thus, become widely cited in renewed efforts to improve real-time tracking of volcanic plumes, as witnessed by special sections published last year in Journal of Geophysical Research, (117, issues D20 and B9).

geographyExplosive eruptiongeography.geographical_feature_category010504 meteorology & atmospheric sciencesMeteorologyStrombolian Eruptions Multi-sensor field surveyMultispectral imageAir traffic control010502 geochemistry & geophysicsTrack (rail transport)01 natural sciencesAeronauticsVolcano[INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG][INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing13. Climate action[SDU]Sciences of the Universe [physics]General Earth and Planetary SciencesGeologyComputingMilieux_MISCELLANEOUS0105 earth and related environmental sciences
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An expanded model and application of the combined effect of crystal-size distribution and crystal shape on the relative viscosity of magmas

2018

International audience; This study examines the combined effect of crystal-size distributions (CSD) and crystal shape on the rheology of vesicle free magmatic suspensions and provides the first practical application of an empirical model to estimate the relative effect of crystal content and CSD's on the viscosity of magma directly from textural image analysis of natural rock samples in the form of a user-friendly texture-rheology spreadsheet calculator. We extend and apply established relationships between the maximum packing fraction ϕm of a crystal bearing suspension and both its rheological properties and the polydispersity γ of a CSD. By using analogue rotational rheometric experiments…

010504 meteorology & atmospheric sciencesRelative viscosityDispersityThermodynamicsMagma rheologyCrystal size distribution010502 geochemistry & geophysicsAtomic packing factor01 natural sciencesCrystalViscosityGeophysicsRheologyGeochemistry and PetrologyMagma[SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/VolcanologySuspension (vehicle)GeologyCrystal shape0105 earth and related environmental sciences
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Shallow system rejuvenation and magma discharge trends at Piton de la Fournaise volcano (La Réunion Island)

2017

International audience; Basaltic magma chambers are often characterized by emptying and refilling cycles that influence their evolution in space and time, and the associated eruptive activity. During April 2007, the largest historical eruption of Piton de la Fournaise (Île de La Réunion, France) drained the shallow plumbing system (>240×106 m3>240×106 m3) and resulted in collapse of the 1-km-wide summit crater. Following these major events, Piton de la Fournaise entered a seven-year long period of near-continuous deflation interrupted, in June 2014, by a new phase of significant inflation. By integrating multiple datasets (lava discharge rates, deformation, seismicity, gas flux, gas composi…

010504 meteorology & atmospheric sciencesLavaeffusive paroxysmMagma chamber010502 geochemistry & geophysicseffusive trend01 natural sciencesEffusive eruptionImpact crater[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistryeffusive paroxysm; effusive trends; Piton de la Fournaise; shallow plumbing system; unloading; Geophysics; Geochemistry and Petrology; Earth and Planetary Sciences (miscellaneous); Space and Planetary ScienceGeochemistry and Petrologyunloading[SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/VolcanologyEarth and Planetary Sciences (miscellaneous)Petrology0105 earth and related environmental sciencesBasaltgeographygeography.geographical_feature_categoryeffusive trendsFumarolePiton de la FournaiseGeophysicsVolcanoshallow plumbing systemSpace and Planetary ScienceMagmaGeologySeismology
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