Please see below for sessions of interest to the GeoPRISMS Community, taking place at the 2020 AGU Fall Meeting, December 7-11. Note that AGU Fall Meeting will be mostly virtual.
AGU abstract submission is now open until July 29.
https://www.agu.org/fall-meeting
Submit your abstract: https://www2.agu.org/en/Fall-Meeting/Pages/Submit-an-abstract
Your session is not listed? Email us at info@geoprisms.nineplanetsllc.com to include your session to the list.
V001 | A Multidisciplinary Approach to Investigating Crustal Processes
V021 | SZ4D: How Do Processes Within Transcrustal Magma Systems Initiate Eruptions at Arc Volcanoes?
MR004 | Elasticity: Connecting the Properties of Minerals to Planetary Models
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T032 | Where is the melt during the evolution of continental rifting?
https://agu.confex.com/agu/fm20/prelim.cgi/Session/101051
Conveners: D. Sarah Stamps (Virginia Tech), Emmanuel Njinju (Virginia Tech), Micah Mayle (Colorado State University), Dennis Lee Harry (Colorado State University)
Abstract: Continental rupture requires weakening mechanisms to overcome lithospheric strength. Magma is one factor that can play a critical role in accommodating strain partitioning during continental rifting. Ample evidence supports that melt weakens the lithosphere in magma-rich rift systems, such as in Iceland and the Main Ethiopian Rift in East Africa. In addition, the potential role of deep crustal and/or mantle melt in magma-poor rifts may also be important. Geochemical, seismic, magnetotelluric, and gravity data have shed some light on the locations of magma at depth in continental rifts, and geodynamic modeling helps isolate the distribution of melt. In this session, we welcome submissions focused on advancing our understanding of the role of, causes of, and locations of melt at depth during continental rifting. Both evidence-based and geodynamic modeling studies are encouraged that may address continental rifting at any phase of development.
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V001 | A Multidisciplinary Approach to Investigating Crustal Processes
https://agu.confex.com/agu/fm20/prelim.cgi/Session/103929
Conveners: Wentao Cao (SUNY Fredonia), Silvio Ferrero (University of Potsdam), Chris Yakymchuk (University of Waterloo)
Abstract: The Earth’s crust is a dynamic place where essential geological processes (e.g. magmatism, metamorphism, and metasomatism) occur. Examining igneous and metamorphic rock records is key to improving our understanding of the crust, from its chemical compositions, geochemical characteristics, and structural properties to the geochemical differentiation and tectonic evolution of the Earth’s lithosphere from the Archean to the present. Various techniques, including geochemical, geochronological, experimental and modeling methods can be applied to investigate composition, conditions, processes, timing, timescale and rate of crustal processes. This session welcomes contributions that advance our understanding of crustal processes in all aspects. Related research includes but not limited to formation and evolution of continental crust, petrological, geochemical and geochronological investigations of crustal materials, experimental studies of crustal materials, phase equilibrium modeling of crustal processes, and geodynamic modeling.
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V021 | SZ4D: How Do Processes Within Transcrustal Magma Systems Initiate Eruptions at Arc Volcanoes?
https://agu.confex.com/agu/fm20/prelim.cgi/Session/105911
Conveners: Adam J R Kent (Oregon State University), Claire E Bucholz (California Institute of Technology), Patricia M Gregg (University of Illinois at Urbana-Champaign), Eric Kiser ( University of Arizona)
Abstract: Understanding the processes that lead to initiation of volcanic eruptions at arc volcanoes lies at the frontier of subduction zone science. In this session we seek contributions from geology, geochemistry, petrology, geodesy, seismology, numerical modeling and other disciplines that investigate processes that promote the initiation of volcanic eruptions and provide a greater understanding of the complex transcrustal-scale magma plumbing systems that feed these events.
This session is organized by the Magmatic Drivers of Eruption (MDE) working group of the Subduction Zones in Four Dimensions (SZ4D) Research Coordination Network. This is an initiative to propose a new program to study subduction zones – the places where tectonic plates converge and collide – through both space and time, with a focus on the fundamental processes underlying geologic hazards such as great earthquakes, tsunamis, landslides, and volcanic eruptions.
Note that part of this session will be held as a discussion panel, but we are also soliciting abstracts for additional sessions.
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MR004 | Elasticity: Connecting the Properties of Minerals to Planetary Models
https://agu.confex.com/agu/fm20/prelim.cgi/Session/105894
Conveners: Elizabeth Thompson (Sewanee: The University of the South), Renata Wentzcovitch (Columbia University), Jung-Fu Lin (University of Texas at Austin), Han Hsu (National Central University of Taiwan)
Abstract: In order to understand the structure and composition of the Earth and its moon, we rely on our understanding of the elastic properties of potential constituent materials to inform interpretations of seismic velocities and geodynamical models. More recently, elastic constraints have also become invaluable in our efforts to better understand the structure and composition of Mars. This session aims to bring together computational and experimental researchers who determine the elastic properties of geological materials and melts with the researchers who employ these constraints to interpret tomographic models and those who develop novel geodynamical models of planetary bodies.
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DI002 | A Multidisciplinary Approach to Understanding Volatiles in Earth’s Mantle
https://agu.confex.com/agu/fm20/prelim.cgi/Session/101837
Conveners: Dan Rasmussen (Smithsonian NMNH), Doug Wiens (Washington University), Megan Duncan (Virginia Tech), and Cara Vennari (University of Chicago)
Volatiles are fundamental to the physical, chemical, and biological evolution of the Earth. The mantle is a large reservoir for volatiles and plays an important role in volatile cycling between Earth systems. Even at low concentrations, such storage exerts key controls over the physical properties of the mantle that shape the geodynamic processes. Despite their importance, volatile contents in and fluxes in and out the mantle remain poorly constrained. Our knowledge of the volatile content and movement in the mantle stems from both direct and indirect observations of volatiles in igneous and metamorphic rocks, high pressure and temperature experiments and simulations, numerical models of mantle convection, and seismic observations. This session aims to bring together interested parties that draw observations from the surface with those who study the system at depth. We invite contributions multiple disciplines including, volcanology, geochemistry, mineral physics, seismology, and geodynamics.
Invited Presenters: Wendy Panero (Ohio State University) and Krister S. Karlsen (University of Oslo)