DI41B:
A Multidisciplinary View of Mantle Heterogeneity: Linking Earth’s Chemical, Physical, and Dynamical Evolution II Posters


Submit an Abstract to this Session


Session ID#: 51093

Session Description:
Advances in geophysical modeling of Earth’s mantle reveal in increasing detail its heterogeneous, three-dimensional structure. Mineral physics allows this heterogeneous structure to be interpreted in terms of compositional or thermal anomalies that deviate from an ambient mantle. Geochemical analyses of mantle-derived samples provide additional evidence for a compositionally heterogeneous mantle and, in some cases, its temporal history. The heterogeneous nature of the mantle as characterized by these disparate (yet inter-related) datasets is ultimately controlled by the dynamical evolution of our planet, however, details surrounding the nature of these heterogeneities remain debated.

This session will explore mantle heterogeneities in a multi-disciplinary perspective from the uppermost mantle to the core-mantle-boundary. This includes observational, experimental, theoretical, and numerical approaches that investigate links between the physics and chemistry of Earth’s interior. We also encourage abstracts that use novel data collection and visualization techniques to further understand the structure and dynamics of Earth’s mantle.

Primary Convener:  Curtis D Williams, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States
Conveners:  Jin Zhang, University of New Mexico Main Campus, Albuquerque, United States, Ebru Bozdag, Colorado School of Mines, Department of Applied Mathematics & Statistics and Department of Geophysics, Golden, CO, United States and Jiashun Hu, Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China
Primary Liaison:  Curtis D Williams, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States
Chairs:  Ebru Bozdag, Colorado School of Mines, Department of Applied Mathematics & Statistics and Department of Geophysics, Golden, CO, United States and Curtis D Williams, University of California Davis, Earth and Planetary Sciences, Davis, CA, United States
OSPA Liaison:  Curtis D Williams, University of California Davis, Earth and Planetary Sciences, Davis, CA, United States

Cross-Listed:
  • MR - Mineral and Rock Physics
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1025 Composition of the mantle [GEOCHEMISTRY]
3621 Mantle processes [MINERALOGY AND PETROLOGY]
7208 Mantle [SEISMOLOGY]
8124 Earth's interior: composition and state [TECTONOPHYSICS]

Abstracts Submitted to this Session:

3D Reference Earth Model: Regionalized and Smooth Flavors (428609)
Vedran Lekic, University of Maryland, College Park, MD, United States, Pritwiraj Moulik, University of Maryland College Park, Department of Geology, College Park, MD, United States and Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States
Advances in Neutrino Geophysics (464622)
William F McDonough1, Ondrej Sramek2, Bedřich Roskovec3, Scott Alan Wipperfurth4 and Laura Sammon4, (1)Tohoku University, Advance Institute for Marine Ecosystem Change, Sendai, Japan, (2)Charles University in Prague, Prague, Czech Republic, (3)Pontificia Universidad Católica de Chile, Santiago, Chile, (4)University of Maryland College Park, Department of Geology, College Park, MD, United States
Calcium isotopic signatures of Lesser Antilles forearc sediments from DSDP Sites 543 and 144 (404534)
Hongli Zhu, Center of Deep Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, Zhaofeng Zhang, State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China, Xiaoyun Nan, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China and Fang Huang, University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China
Constraining Long-wavelength Elastic and Density Structures of the Earth’s Mantle by GPS Body Tide Displacement Measurements (448309)
Chuan Qin, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States and Harriet C. P. Lau, Brown University, Earth, Environmental, and Planetary Sciences, Providence, United States
Correlations Between MORB Helium Isotopes and Seismic Wave Speeds Beneath Ocean Basins (456272)
Curtis D Williams1, Sujoy Mukhopadhyay2, Maxwell L Rudolph1 and Barbara A Romanowicz3, (1)University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States, (2)Harvard Univ, Cambridge, United States, (3)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States
Effect of viscosity structure on long wavelength convection and comparison with tomographic models (413496)
Diogo José Louro Lourenço, University of California Davis, Department of Earth and Planetary Sciences, Davis, United States, Maxwell L Rudolph, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States and Pritwiraj Moulik, University of Maryland College Park, Department of Geology, College Park, MD, United States
Linkage between surface mobility and composition dependent properties in the early Earth (426355)
Keely Anne O'Farrell1, Sean James Trim2 and Samuel L Butler2, (1)University of Kentucky, Earth and Environmental Sciences, Lexington, KY, United States, (2)University of Saskatchewan, Saskatoon, SK, Canada
Linking compositional properties and epeirogenic movement in mantle flow models (453996)
Siavash Ghelichkhan, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia; Technical University of Munich, Department of Civil, Geo and Environmental Engineering, Munich, Germany and Hans-Peter Bunge, Ludwig-Maximilians-Universität München, Earth and Environmental Sciences, Munich, Germany
New Inferences of Mantle Composition in Terms of Three End-member Mixing via Markov Chain Monte Carlo Inversion of the GyPSuM Tomography Model (459507)
Paul M Bremner, University of Florida-Geological Sciences, Gainesville, United States, Alessandro M Forte, Institut de Physique du Globe de Paris, Géomagnétisme, Paris, France, Michael R Perfit, University of Florida, Department of Geological Sciences, Gainesville, United States, Paul A Mueller, Univ Florida-Geology Dept, Gainesville, FL, United States, Nathan A Simmons, Lawrence Livermore Nat'l Lab, Atmospheric, Earth and Energy Division, Livermore, CA, United States and Steve Grand, University of Texas at Austin, Department of Geological Sciences, Austin, United States
Rheological heterogeneities in mantle plumes (366843)
Cinzia G. Farnetani1, Albrecht W Hofmann2, Thomas Duvernay3 and Angela Limare1, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Max Planck Institute for Chemistry, Mainz, Germany, (3)Australian National University, Research School of Earth Sciences, Canberra, Australia
Seismological Constraints on the Small-scale Heterogeneity in the Lowermost Mantle High-Velocity Anomaly beneath East Asia and Implication for its Mineralogical Origin (372330)
Baolong Zhang, State Key Laboratory of Geodesy and Earth’s Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan, China, Sidao Ni, State Key Laboratory of Geodesy and Earth’s Dynamics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China and Daoyuan Sun, University of Science and Technology of China, Hefei, China
Stochastic inversion of P-to-S converted waves for mantle thermal and compositional structure (389903)
Federico Daniel Munch, Institute of Geophysics, ETH Zurich, Zurich, Switzerland, Amir Khan, ETH Zurich, Department of Earth Sciences, Institute of Geochemistry and Petrology, Zurich, Switzerland, Benoit Tauzin, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, Université Jean Monnet, Centre National de la Recherche Scientifique, Laboratoire de Géologie de Lyon: Terre, Planètes, Environnement, Villeurbanne, France; Australian National University, Research School of Earth Sciences, Canberra, Australia and Domenico Giardini, ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland
The Coupled Effects of Mantle Mixing and a Water-Dependent Viscosity in a Parametrised Convection Model (439476)
Kiran Chotalia1, Carolina R Lithgow-Bertelloni2, Neil Cagney1 and John Peter Brodholt3, (1)University College London, London, United Kingdom, (2)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (3)University College London, Department of Earth Sciences, London, United Kingdom
Uppermost Mantle Seismic Structure beneath Central and Eastern United States. (361389)
Rayan Yassminh, University of Missouri Columbia, Columbia, MO, United States and Eric A Sandvol, University of Missouri, Department of Geological Sciences, Columbia, United States
The Influence of a Compositionally Distinct Layer in the Deep Mantle on the Evolution of Plate-like Surface Motion (431959)
Claudia Stein, University of Münster, Münster, Germany and Ulrich Hansen, University of Münster, Institute for Geophysics, Münster, Germany

See more of: Study of Earth's Deep Interior