Theme 3: Architecture of crustal magmatic systems and rate of magmatic processes

Jonathan Delph Junior Keynote Speaker /Purdue University
Marian Holness Overview Speaker /University of Cambridge
Sandy Cruden Overview Speaker /Monash University
Teresa Ubide Junior keynote speaker /University of Queensland
Urs Schaltegger Overview Speaker /Université de Genève

This theme addresses the physical shape and connectivity of magma networks at all scales, from the crust to the grain boundary and from the source to the volcano, including the plutonic-volcanic connection. We will discuss the rates of processes such as melting, melt extraction, magma motion, pluton accretion, eruption, as well as the mechanical and chemical drivers of them.


P. Fiannacca (Uni. Catania)

V. Memeti (University of Southern California)

M. de Saint-Blanquat (GET Toulouse)

Talks recordings

08:30 – 09:15 – Small and nimble or big and mushy? On the nature of granitic magma plumbing systems
Overview Keynote – Alexander Cruden, David Moore, Roberto Weinberg



09:15 – 10:00 – Using microstructural analysis to decode the history of plutonic rocks
Overview Keynote – Marian Holness



10:30 – 11:00 – The structure and evolution of a lithospheric-scale magma system using geologically-informed seismic images
Junior Keynote – Jonathan R. Delph


11:00 – 11:15 – Magma defrosting and melt extraction, Ashland pluton, California and Oregon, USA
Calvin Barnes, Kevin Werts, Melanie Barnes


11:15 – 11:30 – The Generation and Extraction of Arc Andesites and Dacites from a Lower-Crustal Mush Zone, Fiordland, New Zealand
Joshua Schwartz, Keith Klepeis, Rose Turnbull, Elena Miranda, Richard Jongens, Harold Stowell


11:30 – 11:45 – The role of latent heat buffering in the generation of high-silica rhyolites
Lorenzo Tavazzani, Rita Economos, Stefano Peres, Gabriella Demarchi, Silvano Sinigoi, Olivier Bachmann


11:45 – 12:00 – A machine learning model to determine pressure and temperature of crustal magmas
Gregor Weber, Jon Blundy


12:00 – 12:15 – Modeling the rheology of crystal-bearing magmas
Alain Burgisser, Arthur Pascot, George Bergantz


12:15 – 12:30 – Should I stay or should I blow? Emplacement and eruption of a shallow-crustal granitic magma reservoir – the Reyđarártindur granite pluton, Southeast Iceland
Steffi Burchardt, Emma Rhodes, Abigail K. Barker, Dave McGarvie, Tobias Schmiedel, Tobias Mattsson, Taylor Witcher, Sonja Greiner, Erika Ronchin


14:00 – 14:45 – Building a trans-crustal magmatic system – the study of the 4th dimension
Overview Keynote – Urs Schaltegger


14:45 – 15:15 – Dynamics and rates of mush growth and disaggregation across magmatic systems: A mineral perspective
Junior Keynote – Teresa Ubide, John Caulfield, Gideon Rosenbaum


15:45 – 16:00 – Tracking crustal contamination in arc batholiths: the Adamello case study
Manuel Pimenta Silva, Andrea Giuliani, Urs Schaltegger, Blair Schoene, Peter Ulmer, Othmar Müntener


16:00 – 16:15 – Magmatic evolution of a high-silica subvolcanic magma reservoir: evidences from the Early-Miocene batholith of central Chile (33-34°S)
Ítalo Payacán, María Alejandra Covarrubias, Nicolás Rodríguez, Lorenzo Tavazzani, Francisco Gutiérrez, Fernando Poblete, Martín Meyer


16:15 – 16:30 – Crystallization and residence of high-silica rhyolite in the Searchlight magmatic system (Nevada, USA)
Ayla Pamukcu, Sarah Hickernell, Michael Eddy, Blair Schoene, Travis Steiner-Leach


16:30 – 16:45 – Ascent of volatile-rich felsic magma in dikes and formation of crystal magma chambers
Oleg Melnik, Jonathan Blundy, Alison Rust, Rustam Abdullin, Ilya Bindeman


16:45 – 17:00 – Modeling magma chamber growth and eruption; key processes and recent model developments
Meredith Townsend, Christian Huber, Kathryn Scholz, Juliana Troch