V028
Large silicic magma bodies in Earth’s upper crust from volcanic and plutonic perspective
Session ID#: 80379
Session Description:
Melt-rich large silicic, magma bodies are rarely observed geophysically suggesting rapidity of processes of generation, movement, and crystallization of magma and occasional supervolcanic eruption. The Earthâs uppermost crust represents complex rheological transition for the behavior of magma where variable thermal and mechanical gradients, hydrothermal cooling, rates of intrusion, and rapid mass redistribution by caldera processes all accompany rapidly evolving local stress fields. Are batholiths currently forming under oceanic and continental arcs or over hotspots? What are the roles of partial melting, fractional crystallization, cumulate delamination, and crustal extension? What conditions lead to bimodal vs continuous volcanic and plutonic series? How do these processes relate to making the bulk continental crust upon arc accretion? How can large volumes of magma be generated and stored in the upper crust? We seek contributions to this session based on new field, geophysical observations, employment of new geochemical methods, thermal and thermomechanical modeling, and geochronology.
Co-Sponsor(s):
Index Terms:
1115 Radioisotope geochronology [GEOCHRONOLOGY]
8159 Rheology: crust and lithosphere [TECTONOPHYSICS]
8428 Explosive volcanism [VOLCANOLOGY]
8440 Calderas [VOLCANOLOGY]
Primary Convener: Ilya Bindeman, University of Oregon, Earth Sciences, Eugene, OR, United States
Conveners: Eric H Christiansen, Brigham Young University, Geological Sciences, Provo, UT, United States and Dawid Szymanowski, Princeton University, Department of Geosciences, Princeton, NJ, United States
Primary Liaison: Eric H Christiansen, Brigham Young University, Geological Sciences, Provo, UT, United States
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Ianna Ferreira de Lima1, Ronaldo Pierosan Sr1 and Tanya Furman2, (1)UFMT Federal University of Mato Grosso, Cuiabá, Brazil, (2)Penn State Univ, University Park, PA, United States
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Morgan Wade Maynard Nasholds, New Mexico Institute of Mining and Technology, Earth and Environmental Science Department, Socorro, NM, United States, Matthew J Zimmerer, New Mexico Bureau of Geology and Mineral Resouces, Socorro, NM, United States and Nicholas Franklin Meszaros, University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States
Geochemistry and Geochronology of Quaternary Calderas in North and Central Sumatra (Indonesia) (515929)
Francesca Forni1,2, Steffen Eisele1,2, Marcus Phua1,2, Marcel Guillong3, Jeffrey Oalmann1,2, Hamdi Rifai4, Rizaldi Putra4 and Caroline Bouvet de Maisonneuve1,2, (1)Nanyang Technological University, Asian School of the Environment, Singapore, Singapore, (2)Earth Observatory of Singapore, Singapore, Singapore, (3)ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, (4)Universitas Negeri Padang, Department of Physics, Faculty of Mathematics and Natural Sciences, Padang, Indonesia
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Stephen Self, Retired, Washington, DC, United States; Univ of California Berkeley, Berkeley, CA, United States, Christos Gouramanis, Dept. of Geography, Univ of Singapore, Singapore, Singapore and Michael Storey, Roskilde University, Roskilde, Denmark
Magma plumbing system for the 30 ka Aira catastrophic caldera-forming eruption, Southwest Japan: contributions of crust-derived mafic and felsic magmas (535720)
Ayumu Nishihara1, Yoshiyuki Tatsumi2, Katsuya Kaneko1, Jun-Ichi Kimura3, Keiko Suzuki-Kanata1, Qing Chang3, Takashi Miyazaki4 and Bogdan Vaglarov3, (1)Kobe University, Kobe, Japan, (2)Kobe University, Kobe Ocean-Bottom Exploration Center, Kobe, Japan, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics (IMG), Kanagawa, Japan, (4)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
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Juliana Troch1,2, Ben S Ellis2, Chris Harris3 and Olivier Bachmann2, (1)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States, (2)ETH Zurich, Institute of Geochemistry and Petrology, Zurich, Switzerland, (3)University of Cape Town, Department of Geological Sciences, Rondebosch, South Africa
Multiple Magma Batches: Understanding the Pre-Eruptive Architecture and Magmatic Processes of Supereruptions Based on Textural, Mineralogical, and Geochemical Features of Fiamme from the Ora Ignimbrite (Permian, Italy) (569239)
Genna Chiaro1, Guilherme A R Gualda2, Guido Giordano3, Corrado Morelli4 and Calvin F Miller1, (1)Vanderbilt University, Earth and Environmental Sciences, Nashville, TN, United States, (2)Vanderbilt University, Department of Earth and Environmental Sciences, Nashville, TN, United States, (3)Universita Roma Tre, Rome, Italy, (4)Provincia Autonoma di Bolzano, Bolzano, Italy
Investigating Crustal and Mantle Contributions using Pb and Sr Isotopes in Okataina and Taupo Volcanic Centers, Taupo Volcanic Zone, New Zealand (570229)
Nicole Rocco, Oregon State University, Corvallis, OR, United States, Adam J.R. Kent, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Kari M Cooper, UC Davis, Davis, CA, United States, Chad Daniel Deering, Michigan Technological University, Department of Geological and Mining Engineering & Sciences, Houghton, MI, United States and Darren McClurg Gravley, University of Canterbury, Christchurch, New Zealand
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Adam C Curry1, Luca Caricchi2, Joshua Davies3 and Maria Ovtcharova1, (1)University of Geneva, Geneva, Switzerland, (2)University of Geneve, Earth Sciences, Geneve, Switzerland, (3)University of Quebec at Montreal UQAM, Montreal, Canada
The Magmatic and Eruptive Evolution of the 1883 Explosive, Caldera-forming Eruption of Krakatau, Indonesia (578034)
Amber Madden-Nadeau1, Mike Cassidy1, David M Pyle1, Tamsin A Mather1, Sebastian Watt2, Samantha L Engwell3, Mirzam Abdurrachman4 and Taufik Ismail5, (1)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (2)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, B15, United Kingdom, (3)British Geological Survey, The Lyell Centre, Edinburgh, United Kingdom, (4)Institut Teknologi Bandung, Bandung, Indonesia, (5)Indonesia College of Mineral and Technology, Department of Geology, Bandung, Indonesia
Modelling Conductive and Convective Heat Extraction from Silicic Magma Bodies in the Central Taupō Volcanic Zone (596416)
Liam Kelly1,2, Darren McClurg Gravley2,3, Guilherme A R Gualda1 and David Dempsey4, (1)Vanderbilt University, Department of Earth and Environmental Sciences, Nashville, TN, United States, (2)Frontiers Abroad, Christchurch, New Zealand, (3)University of Canterbury, Christchurch, New Zealand, (4)University of Auckland, Auckland, New Zealand
A New K-feldspar Liquid Hygrometer: Initial Experiments, Calibration and Application (597647)
Laura E. Waters1, Magdalen Grismer1 and Gordon Moore2, (1)Sonoma State University, Geology, Rohnert Park, CA, United States, (2)University of California Davis, Earth and Planetary Sciences, Davis, CA, United States
Changing Volatile Contents Just Prior to Super-Eruptions: Evidence from the Upper Bandelier Tuff, Valles Caldera, New Mexico (604105)
Nicholas Franklin Meszaros1, Morgan Wade Maynard Nasholds2, Matthew J Zimmerer3 and James E Gardner1, (1)University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States, (2)New Mexico Institute of Mining and Technology, Earth and Environmental Science Department, Socorro, NM, United States, (3)New Mexico Bureau of Geology and Mineral Resouces, Socorro, NM, United States
