DI13A:
Consequences of Mantle Phase Transitions II Posters

Submit an Abstract to this Session



Session ID#: 24873

Session Description:
This session focuses on phase transformations of mantle materials at high pressure-temperature conditions and their seismic and dynamic manifestations in the Earth’s interior. The recent developments in seismic methods, as well as the blooming of seismic data from expanded seismic networks, continuously improve the imaging of global and regional phase transitions and seismic structure in their vicinity which can reveal local dynamics. Improving mineral physics constraints on the elastic properties, partitioning behavior, phase stability, and transformations in the major mantle minerals enable interpretation of seismic observations in terms of changes in mineral structure, spin state of iron, and distribution of volatiles such as water. We aim to bring together contributions from mineral physics, dynamics, and seismology that inform and improve our understanding of mantle phase transitions.

Primary Convener:  Christine T Houser, Earth-Life Science Institute, Meguro, Tokyo, Japan
Conveners:  Jin Zhang, Texas A & M University, College Station, United States and Laura J Cobden, Utrecht University, Utrecht, Netherlands
Chairs:  Christine T Houser, Earth-Life Science Institute, Meguro, Tokyo, Japan and Jin Zhang, Texas A & M University, College Station, United States
OSPA Liaison:  Jin Zhang, Texas A & M University, College Station, United States

Cross-Listed:
  • MR - Mineral and Rock Physics
  • S - Seismology
Index Terms:

1025 Composition of the mantle [GEOCHEMISTRY]
1038 Mantle processes [GEOCHEMISTRY]
3924 High-pressure behavior [MINERAL PHYSICS]
7203 Body waves [SEISMOLOGY]

Abstracts Submitted to this Session:

The role of upper mantle mineral phase transitions on the current structure of large-scale Earth’s mantle convection. (208650)
Catherine Thoraval, CNRS & Univ. Montpellier, Géosciences Montpellier, Montpellier, France
Acoustic Velocities Across the Olivine – Wadsleyite – Ringwoodite Transitions and the Seismic Signature of the 410 km Mantle Discontinuity (228063)
Jean-Philippe Perrillat, Université Claude Bernard Lyon1, Villeurbanne, France, Julien Chantel, Case Western Reserve University, Cleveland, OH, United States, Benoit Tauzin, Université de Lyon, UCBL, ENSL, CNRS, LGL-TPE, Villeurbanne, France, Julie Jonfal, University Claude Bernard Lyon 1, Villeurbanne, France, Isabelle Daniel, Ecole Normale Supérieure Lyon, Lyon, France, Zhicheng Jing, Case Western Reserve University, Cleveland, United States and Yanbin Wang, The University of Chicago, Center for Advanced Radiation Sources, Chicago, United States
Finite-Frequency Effects on the Determination of the Mantle Transition Zone Thickness. (244891)
Carlos Alberto Moreno Chaves, University of Michigan Ann Arbor, Department of Earth and Environmental Sciences, Ann Arbor, MI, United States, Lauren Waszek, New Mexico State University, Las Cruces, United States, Jeroen Ritsema, Univ Michigan, Ann Arbor, MI, United States and Nicholas C Schmerr, University of Maryland, Department of Geology, College Park, United States
A coherent high-pressure high-temperature single-crystal elasticity model of Fe-bearing olivine and the implications for the 410 discontinuity (259277)
Jin Zhang, University of New Mexico Main Campus, Institute of Meteoritics, Department of Earth and Planetary Sciences, Albuquerque, NM, United States and Jay D Bass, University of Illinois at Urbana Champaign, Urbana, IL, United States
A Synchrotron Mössbauer Spectroscopy Study of a Hydrated Iron-Sulfate at High Pressures (282225)
Tyler Perez1, Gregory J Finkelstein2, Natalia V Solomatova2 and Jennifer M Jackson3, (1)Johns Hopkins University, Earth & Planetary Sciences, Baltimore, MD, United States, (2)California Institute of Technology, Pasadena, CA, United States, (3)California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States
Thermoelastic effects across the post-perovskite transition in (Al,Fe)-bearing bridgmanite (266101)
Juan Jose Valencia-Cardona, University of Minnesota Twin Cities, Minneapolis, MN, United States, Gaurav Shukla, Florida State University, Tallahassee, FL, United States, Kanchan Sarkar, Columbia University, Applied Physics and Applied Mathematics, New York, NY, United States and Renata Wentzcovitch, Columbia University in the City of New York, Department of Applied Physics and Applied Mathematics, New York, NY, United States
Phase transitions in MgSiO3 at high pressures and temperatures (217253)
Shigeaki Ono, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan

See more of: Study of Earth's Deep Interior