JpGU-AGU Joint Meeting 2020

Session information

[E] Oral

S (Solid Earth Sciences ) » S-VC Volcanology

[S-VC42] Dynamics of volcanic eruptions and their physical and chemical processes

convener:Atsuko Namiki(Graduate School of Integrated Arts and Sciences, Hiroshima University), Christian Huber(Brown University), Michael Manga(University of California Berkeley), Yujiro Suzuki(Earthquake Research Institute, The University of Tokyo)

A Volcanic eruption is a hazardous phenomenon that results from a sequence of coupled processes, including storage in the subsurface and ascent to the surface. The volcanic gas exsolving from the ascending magma generates bubbles, which influence both the potential energy of the magma (density) and its resistance to flow (viscosity). Bubbles can sometimes deform and/or fragment the surrounding magma, leading up to explosive eruptions that develop volcanic plumes and/or pyroclastic flows. A broad range of approaches is required to tackle these processes and better understand the factors that govern the physics of explosive eruptions. We welcome contributions from interdisciplinary approaches, including, geophysical observations of active/quiet volcanoes, geochemical measurements of eruptive products, theoretical approaches, and numerical simulations, and laboratory experiments designed to explore the fundamental processes underlying explosive volcanism.


*Didier Laporte1, Nicolas Cluzel1, Lucia Pappalardo2, Gianmarco Buono2, Ariel Provost1 (1.Laboratoire Magmas et Volcans, Université Clermont Auvergne/CNRS/IRD, Clermont-Ferrand, France, 2.Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano - sezione di Napoli, Italy)

*Graham Hill1,2, Hugh Bibby3, Jared Peacock4, Erin Wallin5, Yasuo Ogawa6, Luca Caricchi7, Harry Keys8, Stewart Bennie3, Yann Avram9 (1.Institute of Geophysics, Czech Academy of Science, Prague, Czech Republic, 2.Gateway Antarctica, University of Canterbury, Christchurch, New Zealand, 3.GNS Science, Lower Hutt, New Zealand, 4.United States Geological Survey, Menlo Park CA, USA, 5.United States Army Corps of Engineers, Huntsville AL, USA, 6.Volcanic Fluid Research Centre, Tokyo Institute of Technology, Tokyo, Japan, 7.Department of Earth Sciences, University of Geneva, Geneva, Switzerland, 8.Department of Conservation, Turangi, New Zealand, 9.Phoenix Geophysics, Toronto, Canada)