DI14A:
Deep Mantle Dynamics and Its Surface Expressions III

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Session ID#: 31798

Session Description:
Interior planetary dynamics are difficult to probe directly. But fundamental insight can be gathered even from the surface: The geological record, gravity, topography, volcanism, and sea-level all carry traces of past and present dynamics. Complementary insight comes from seismic and geochemical observations, laboratory experiments, and geodynamic modeling. Earth's present-day surface is a snapshot in time that displays the integrated signal of multiple processes that operated at different times with varying intensity and duration. The same is true of other planetary surfaces. Linking such temporal and spatial scales is thus crucial to understanding the thermal and chemical history of the mantle, not only on Earth, but also on other planetary bodies.

This broad session aims to shed light on these spatial and temporal links using multiple and multidisciplinary approaches. We welcome theoretical, numerical, laboratory and observational contributions from all across the fields of geology and geophysics.

Primary Convener:  Mingming Li, Arizona State University, Tempe, United States; University of Colorado at Boulder, Department of Physics, Boulder, CO, United States
Conveners:  Keely Anne O'Farrell, University College London, London, United Kingdom and Melanie Gerault, MIT, Earth, atmospheric and planetary sciences, Cambridge, United States
Chairs:  Mingming Li, Arizona State University, Tempe, United States, Keely Anne O'Farrell, University College London, London, United Kingdom and Rene Gassmoeller, Colorado State University, Mathematics, Fort Collins, CO, United States
OSPA Liaison:  Keely Anne O'Farrell, University College London, London, United Kingdom

Cross-Listed:
  • EP - Earth and Planetary Surface Processes
  • MR - Mineral and Rock Physics
  • S - Seismology
  • T - Tectonophysics
Index Terms:

1038 Mantle processes [GEOCHEMISTRY]
1140 Thermochronology [GEOCHRONOLOGY]
5430 Interiors [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
8121 Dynamics: convection currents, and mantle plumes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Migrating Toward Fully 4-D Geodynamical Models of Asthenospheric Circulation and Melt Production at Mid-Ocean Ridges (288574)
Loes van Dam1, Christopher R Kincaid2, Robert A Pockalny2, Richard Tucker Sylvia2 and Paul S Hall3, (1)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (2)University of Rhode Island, Narragansett, RI, United States, (3)Boston University, Boston, MA, United States
Plume-induced subduction and accretion on present-day Venus and Archean Earth (Invited) (215886)
Anne Davaille1, Dr. Suzanne E Smrekar, PhD2, Aurore Sibrant1 and Eric L Mittelstaedt3, (1)CNRS / University Paris-Sud, Laboratoire FAST, Orsay, France, (2)JPL/NASA/Caltech, Pasadena, United States, (3)University of Idaho, Moscow, ID, United States
A New Global Model Of Plates Motion Over The Mantle For The Last 300MA: Link Between Mantle Structures, Volcanism and Plate Tectonics. (234398)
Jean Besse, Institut de Physique du Globe de Paris, paléomagnetisme, Paris, France, Vicente de Gouveia Sophie, Institut de Physique du Globe de Paris, paléomagnétisme, Paris, France, Marianne Greff-Lefftz, Université Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France, Dominique Frizon de Lamotte, Université de Cergy-Pontoise, Géosciences et environnement, Cergy-Pontoise, France, Marc Lescanne, Total SA, Exploration Production SCR/R&D, Pau, France and François Leparmentier, Total SA, Exploration / Middle East - North Africa, Paris - La Défense, France
Testing Lithospheric versus Deep-Mantle Dynamics on Post-100 Ma Evolution of Western U.S. using Landscape Evolution Modeling (221971)
Ching Chang, University of Illinois at Urbana Champaign, Geology, Urbana, IL, United States and Lijun Liu, University of Illinois at Urbana Champaign, Geology, Urbana, United States
A New Framework For The Evolution of Terrestrial Planets: Bi-stability, Stochastic Effects, and the Non-Uniqueness of Tectonic States (Invited) (264187)
Matt B Weller, Institute for Geophysics at the University of Texas, Austin, Austin, TX, United States and Adrian Lenardic, Rice University, Earth, Environmental, and Planetary Sciences, Houston, United States
A reservoir model study of the flux of carbon from the atmosphere, to the continental crust, to the mantle (235562)
Louise H Kellogg, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States, Harsha Venkata Lokavarapu, University of California Davis, Davis, CA, United States, Donald L Turcotte, UC Davis, Department of Earth and Planetary Sciences, Davis, CA, United States and Sujoy Mukhopadhyay, Arizona State University, Department of Earth and Planetary Sciences, Tempe, AZ, United States
Global and regional observations of mid-mantle discontinuities: implications for mantle dynamics and flow (238837)
Lauren Waszek1, Nicholas C Schmerr2, Maxim Ballmer3, Andrew Joseph-Harding Eagon4, Anna M. Bishop Courtier5 and Vedran Lekic2, (1)New Mexico State University, Las Cruces, United States, (2)University of Maryland, Department of Geology, College Park, United States, (3)University College London, ETH Zürich, London, United Kingdom, (4)University of Wisconsin Whitewater, Whitewater, WI, United States, (5)James Madison University, Harrisonburg, VA, United States
Flow in the Deep Mantle from Seisimc Anisotropy: Progress and Prospects (Invited) (209608)
Maureen D Long, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States

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