MR51A:
Rheology of Earth's Mantle II Small-Scale Observations

Session ID#: 2942

Friday, 19 December 2014: 8:00 AM-10:00 AM
301 (Moscone_South)
Chairs:  Lowell M Miyagi, University of Utah, Department of Geology and Geophysics, Salt Lake City, UT, United States, Lars N Hansen, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom and Nadege Hilairet, University of Lille 1, Villeneuve d'Ascq, France
Primary Convener:  Lowell M Miyagi, University of Utah, Department of Geology and Geophysics, Salt Lake City, UT, United States
Co-conveners:  Lars N Hansen, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, Anthony Brian Watts, Univ Oxford, Oxford, United Kingdom and Nadege Hilairet, University of Lille 1, Villeneuve d'Ascq, France
OSPA Liaison:  Lowell M Miyagi, University of Utah, Department of Geology and Geophysics, Salt Lake City, UT, United States
Co-Sponsor(s):
  • DI - Study of the Earth's Deep Interior
  • G - Geodesy
  • S - Seismology
  • T - Tectonophysics
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1236 Rheology of the lithosphere and mantle [GEODESY AND GRAVITY]
3902 Creep and deformation [MINERAL PHYSICS]
5120 Plasticity, diffusion, and creep [PHYSICAL PROPERTIES OF ROCKS]
8162 Rheology: mantle [TECTONOPHYSICS]
Virtual Option?: No
Swirl Theme: Convection and circulation across scales

Abstracts Submitted to this Session:

The Relative Strength of the (Fe,Mg)2SiO4 Polymorphs (Invited) (2599)
Simon Hunt, University of Manchester, Department of Materials, Manchester, M13, United Kingdom
Grain-Boundary Plasticity and the Strength of the Upper Mantle (7256)
Paul Raterron1, Caroline Bollinger2, Nadege Hilairet1 and Sebastien Merkel1, (1)University of Lille 1, Villeneuve d'Ascq, France, (2)Universite de Toulouse, IRAP, Toulouse, France
Silicon Grain Boundary Diffusion in Forsterite and Implications to Upper Mantle Rheology (9151)
Hongzhan Fei1,2, Sanae Koizumi3, Naoya Sakamoto4, Minako Hashiguchi5, Hisayoshi Yurimoto6, Katharina Marquardt7, Nobuyoshi Miyajima7, Daisuke Yamazaki8 and Tomoo Katsura7, (1)Institute for Study of the Earth's Interior, Okayama University, Tottori, Japan, (2)Bayerisches Geoinstitut, Bayreuth, Germany, (3)Earthquake Research Institute, University of Tokyo, Tokyo, Japan, (4)Hokkaido University, Institute for Integrated Innovations, Sapporo, Japan, (5)Hokkaido University, Division of Earth and Planetary Sciences, Sapporo, Japan, (6)University of Hokkaido, Isotope Imaging Laboratory, Sapporo, Japan, (7)Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany, (8)Okayama University, Institute for Planetary Materials, Tottori, Japan
Low strength of the shallow mantle lithosphere: Data and geodynamical consequences (29739)
Sylvie Aude Demouchy1, Andrea Tommasi1 and Patrick Cordier2, (1)CNRS & Univ. Montpellier, Géosciences Montpellier, Montpellier, France, (2)University of Lille 1 & CNRS, Unité Matériaux et Transformations, Villeneuve d'Ascq, France
Effective Stress Sensitivity of the Viscoplastic Upper Mantle, and Related Deformation Mechanisms at the Grain Scale (Invited) (3772)
Olivier Castelnau, CNRS, ENSAM, CNAM, PIMM, Paris Cedex 16, France, Fabrice Detrez, Universite Marne la Vallee, Marne la Vallee, France, Patrick Cordier, University of Lille 1 & CNRS, Unité Matériaux et Transformations, Villeneuve d'Ascq, France, Sebastien Merkel, UMET, Université de Lille, Villeneuve d'Ascq, France and Paul Raterron, University of Lille 1, Villeneuve d'Ascq, France
Pressure and temperature dependence of dislocation mobility in the [100](010) and [001](010) slip systems in olivine (18104)
Tomoo Katsura1, Lin Wang2, Stephan Blaha3, Zsanett Pintér2, Stella Chariton4, Robert J Farla5, Takaaki Kawazoe3 and Nobuyoshi Miyajima6, (1)University Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, (2)University of Bayreuth, Bayreuth, Germany, (3)University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany, (4)The University of Chicago, Center for Advanced Radiation Sources, Chicago, United States, (5)Deutsche Elektronen-Synchrotron (DESY), Hamburg, Germany, (6)Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany
Synchrotron in-situ deformation experiments of bridgmanite + ferropericlase aggregates under the shallow lower mantle conditions (16969)
Jennifer Girard1, George Amulele1, Robert J Farla2, Anwar Mohiuddin1 and Shun-ichiro Karato3, (1)Yale University, Geology and Geophysics, New Haven, CT, United States, (2)Deutsche Elektronen-Synchrotron (DESY), Hamburg, Germany, (3)Yale University, New Haven, CT, United States
Stress heterogeneities in anisotropic materials - their effect on dislocation fields and post-deformational recrystallization: Insights from combined experiments and numerical simulations of polycrystalline ice (Invited) (5116)
Sandra Piazolo, Macquarie University, Deparement of Earth and Planetary Sciences, Sydney, NSW, Australia, Maurine Montagnat, Institut of Geosciences of Environment, UGA, CNRS, Grenoble, France, Verity Borthwick, Stockholm University, Geological Science, Stockholm, Sweden, Lynn Evans, Macquarie University, Deparement of Earth and Planetary Sciences, Sydney, Australia, Albert Griera, Universitat Autònoma de Barcelona, Departament de Geologia, Bellaterra (Cerdanyola del Vallès), Spain, Fanny Grennerat, LGGE Laboratoire de Glaciologie et Géophysique de l’Environnement, Saint Martin d'Hères, France, Herve Moulinec, Laboratoire de Mecanique et Acoustique, Marseille, France and John Wheeler, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom