9:00 AM - 9:15 AM
S (Solid Earth Sciences) » S-CG Complex & General
[S-CG62] [EE] Dynamics in mobile belts
Tue. May 23, 2017 9:00 AM - 10:30 AM Convention Hall B (International Conference Hall 2F)
convener:Yukitoshi Fukahata(Disaster Prevention Research Institute, Kyoto University), Robert Holdsworth(Durham University), Jeanne Hardebeck(USGS), Hikaru Iwamori(Geochemical Evolution Research Program, Japan Agency for Marine-Earth Science and Technology), Chairperson:Robert Holdsworth(Durham University), Chairperson:Ichiko Shimizu(Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo)
The dynamic behaviours of mobile belts are expressed across a wide range of time scales, from the seismic and volcanic events that impact society during our lifetimes, to orogeny and the formation of large-scale fault systems which can take place over millions of years. Deformation occurs on length scales from microscopic fracture and flow to macroscopic deformation to plate-scale tectonics. To gain a physical understanding of the dynamics of mobile belts, we must determine the relationships between deformation and the driving stresses due to plate motion and other causes, which are connected though the rheological properties of the materials. To understand the full physical system, an integration of geophysics, geomorphology, and geology is necessary, as is the integration of observational, theoretical and experimental approaches. In addition, because rheological properties are greatly affected by fluids in the crust and fluid chemical reactions, petrological and geochemical approaches are also important. After the 2011 great Tohoku-oki earthquake, large-scale changes in seismic activity and regional scale crustal deformation were observed, making present-day Japan a unique natural laboratory for the study of the dynamics of mobile belts. This session welcomes presentations from different disciplines, such as seismology, geodesy, tectonic geomorphology, structural geology, petrology, and geofluids, as well as interdisciplinary studies, that relate to the dynamic behaviour of mobile belts.
9:15 AM - 9:45 AM
*Stephen Francis Cox1 (1.Research School of Earth Sciences, The Australian National University)
9:45 AM - 10:00 AM
10:00 AM - 10:15 AM
[SCG62-04] Coupled effect of grain-size evolution and phase mixing: A two phase model for the ductile deformation of rocks.
*Benoit Bevillard1, Guillaume Richard1, Hikaru Iwamori2,3, Hugues Raimbourg1 (1.Institut des Sciences de la Terre d'Orléans, 2.Department of Solid Earth Geochemistry, Japan Agency for Marine-Earth Science and Technology, 3.Department of Earth & Planetary Sciences, Tokyo Institute of Technology)
10:15 AM - 10:30 AM
*Toru Takeshita1, Shun Arai1, Dong Van Bui1, Thomas Anthony Czertowicz1, Takafumi Yamamoto2, Jun-ichi Ando2, Norio Shigematsu3, Koichiro Fujimoto4 (1.Department of Natural History Sciences, Graduate School of Science, Hokkaido University, 2.Graduate School of Science, Hiroshima University, 3.AIST, 4.Tokyo Gakugei University)