JpGU Meeting 2019
Session outline| Solid Earth Sciences (S) | ||
|---|---|---|
| Session Sub-category | Complex & General(CG) | |
| Session ID | S-CG61 | |
| Title | Dynamics in mobile belts | |
| Short Title | Dynamics in mobile belts | |
| Main Convener | Name | Yukitoshi Fukahata |
| Affiliation | Disaster Prevention Research Institute, Kyoto University | |
| Co-Convener 1 | Name | Toru Takeshita |
| Affiliation | Department of Natural History Sciences, Graduate School of Science, Hokkaido University | |
| Co-Convener 2 | Name | Hikaru Iwamori |
| Affiliation | Geochemical Evolution Research Program, Japan Agency for Marine-Earth Science and Technology | |
| Session Language | J | |
| Scope | 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 through 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 hydrology, as well as interdisciplinary studies, that relate to the dynamic behaviours of mobile belts. | |
| Presentation Format | Oral and Poster presentation | |
| Invited Authors | Katsushi Sato (Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University) Satoshi Matsumoto (Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 27 PM1 | ||||
| 13:45 - 14:00 | SCG61-01 | Fault zone development in the West Tottori area, Japan | Kenta Kobayashi | |
| 14:00 - 14:15 | SCG61-02 | Inerastic deformation around focal area of the 2000 Western Tottori EQ (M7.3) detected by “0.1 manten” Hyper Dense Seismic Observation (2) | Satoshi Matsumoto | |
| 14:15 - 14:30 | SCG61-03 | Non-double couple micro-earthquakes in the focal area of the 2000 Western Tottori earthquake (M7.3) by "0.1 manten" hyper dense seismic observation | Yuto Hayashida | |
| 14:30 - 14:45 | SCG61-04 | Stress field in the Western Tottori and Western Shimane regions deduced by the dense seismic observations | Yoshihisa Iio | |
| 14:45 - 15:00 | SCG61-05 | Modeling the spatiotemporal change in stress field around Hinagu fault zone through the 2016 Kumamoto earthquake sequence, in central Kyushu, Japan | Ayaho Mitsuoka | |
| 15:00 - 15:15 | SCG61-06 | Development of the Median Tectonic Line Fault zone in Mie Prefecture, Southwest Japan : A Possible Interpretation for Strain Localization and Softening | Toru Takeshita | |
| Oral Presentation May 27 PM2 | ||||
| 15:30 - 15:45 | SCG61-07 | What caused the Main Himalayan Thrust (MHT) to ramp? Insights from analogue and numerical models | Subhajit Ghosh | |
| 15:45 - 16:00 | SCG61-08 | Control of fault weakening on the structural styles of underthrusting-dominated non-cohesive tectonic wedges | Arthur Bauville | |
| 16:00 - 16:15 | SCG61-09 | Complexity of the 2016 M 7.8 Kaikoura, New Zealand, earthquake from seismic observation: inferences of overpressured fluid involvement | Tomomi Okada | |
| 16:15 - 16:30 | SCG61-10 | Dynamic Rupture Simulation Reproduces Spontaneous Multifault Rupture and Arrest During the 2016 Mw 7.9 Kaikoura Earthquake | Ryosuke Ando | |
| 16:30 - 16:45 | SCG61-11 | Ductile deformation explains the physics of friction and genesis of earthquakes | James Daniel Paul Moore | |
| 16:45 - 17:00 | SCG61-12 | The seismic moment, stress drop, and strain energy release for the rupture of asperities | Mitsuhiro Matsu'ura | |
| Oral Presentation May 28 AM1 | ||||
| 09:00 - 09:15 | SCG61-13 | Deciphering dynamics of thermal events at lithosphere-asthenosphere boundary from peridotite xenoliths of Ichinomegata maar, NE Japan | Yuto Sato | |
| 09:15 - 09:30 | SCG61-14 | Experimental investigation of reaction-induced stress and permeability evolution in MgO–H2O system | Masaoki Uno | |
| 09:30 - 09:45 | SCG61-15 | Fluid-Flow, Resistivity and Elastic Wave Velocity Simulation of Digital Rock Fracture and Comparison with Experimental Data | Kazuki Sawayama | |
| 09:45 - 10:00 | SCG61-16 | Fluid distribution in the crust – inference from seismic velocity and electrical conductivity | Tohru Watanabe | |
| 10:00 - 10:15 | SCG61-17 | The seismological structure about fault zone extending to the lower crust in the northern Kinki district, southwestern Japan | Shinya Kato | |
| 10:15 - 10:30 | SCG61-18 | Inland repeating earthquakes in the vicinity of low frequency earthquakes around Hakodate, Hokkaido | Keisuke Yoshida | |
| Oral Presentation May 28 AM2 | ||||
| 10:45 - 11:00 | SCG61-19 | Modeling strain concentration and mountain building processes in central Japan considering heterogeneous rheological structure | Bunichiro Shibazaki | |
| 11:00 - 11:15 | SCG61-20 | Inelastic strain rate and deviatoric stress field of the seismic gap in west part of Kyushu, Japan, estimated from seismic and geodetic data | Yuhei Yuasa | |
| 11:15 - 11:30 | SCG61-21 | Persistent and time-dependent crustal deformation in northern Fossa Magna and its tectonic implications | Takeshi Sagiya | |
| 11:30 - 11:45 | SCG61-22 | Unexpected relationship between ΔCFF and the strain-rate paradox: separation of plastic strain from inelastic strain | Yukitoshi Fukahata | |
| 11:45 - 12:00 | SCG61-23 | Active period of inland earthquakes based on numerical simulation of megathrust earthquake cycle incorporating viscoelasticity | Tsukasa MITOGAWA | |
| 12:00 - 12:15 | SCG61-24 | Influence of viscoelastic relaxation on estimated interplate coupling along the Nankai Trough, southwest Japan | Takuya NISHIMURA | |
| Oral Presentation May 28 PM1 | ||||
| 13:45 - 14:00 | SCG61-25 | Revisiting the Forearc Sliver Scenario Along the Southern Kurile Trench to Reconcile Interdisciplinary Observations | Yuji ITOH | |
| 14:00 - 14:15 | SCG61-26 | Segmentation of crustal deformation area within the Sanriku coast, northeast Japan, on the basis of spatial distribution of millennial-scale crustal movements | Yuichi Niwa | |
| 14:15 - 14:30 | SCG61-27 | Shear wave splitting east off NE Japan based on the S-net data | Naoki Uchida | |
| 14:30 - 14:45 | SCG61-28 | Gravity anomaly due to active faults and crustal rheology in the northeastern Japan arc inferred by fault dislocation model | Mitsuhiro Hirano | |
| 14:45 - 15:00 | SCG61-29 | On the temporal decay of the localized strain rate in the Tohoku region after the Tohoku-Oki earthquake | Youichiro Takada | |
| 15:00 - 15:15 | SCG61-30 | Revisiting the Coseismic Slip Distribution of the 2011 Tohoku-oki Earthquake Considering Early Postseismic Deformation, Non-linear Viscoelasticity, and Heterogeneous Structure | Takeshi Iinuma | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 28 PM2 | |||
| SCG61-P01 | Three-dimensional imaging of geo-fluid distribution at NE-Japan forearc using wideband magnetotelluric measurements | Masato Fukai | |
| SCG61-P02 | Elastic wave velocity and electrical conductivity in brine-saturated rocks and microstructure of pores | Arina Tomioka | |
| SCG61-P03 | Influence of grain shape and grain size distribution on connectivity of pores in granular materials. | Katazakai Haruka | |
| SCG61-P04 | Change of pore connectivity in granular materials under axial compression | MAREMICHI ABE | |
| SCG61-P05 | Estimation of crustal strength using residual strain of quartz in deformed conglomerate and inhomogenous strain of conglomerate layer -As an example of multiple collision zone of Izu-Bonin arc, Fujikawa valley, Central Japan- | Shun Suzuki | |
| SCG61-P06 | An Introduction to Ryoke Cataclastic Rocks in Tsukide, Mie Prefecture, Japan: An Approach Using 3D Reconstructions From Thin Sections | Thomas Jing Yi Yeo | |
| SCG61-P07 | Relationships between spacing and growth or linkage of normal faults in the Miyako Island, South Ryukyu arc, Japan | Sumire Maeda | |
| SCG61-P08 | 3D fault architecture along the Median Tectonic Line, eastern Kii Peninsula, SW Japan | Norio Shigematsu | |
| SCG61-P09 | Significant of thrust zone at Fuji river basin in the South Fossa Magna, Southern Yamanashi Prefecture, Central Japan -Study of Structural geology of Minobu and Neguma fault- | Minami Madoka | |
| SCG61-P10 | Mineralogical characteristics of fault rocks in the aftershock regions of the 2000 Western Tottori earthquake and its spatial distribution | Shunya Kaneki | |
| SCG61-P11 | Relationship between seismicity of the 2016 the Central Tottori Earthquake and fault distribution in the aftershock area | Masayuki Ichimura | |
| SCG61-P12 | History of fault activity considered from the brittle shear zone and the geological structure near the Cape Otachi, Kumamoto Prefecture | Keiji Ogashiwa | |
| SCG61-P13 | Study on fault activity evaluation method (A new attempt to understand fault activities) No.1 - Overall plan and current situation at Shionohira Fault - | Kazuhiro Aoki | |
| SCG61-P14 | Study on fault activity evaluation method (A new attempt to understand fault activities) No.2 - Injection experiment using a SIMFIP probe at Shionohira Fault and southern fault- | Takahiro Watanabe | |
| SCG61-P15 | Dynamic rupture simulation of 2018, Hokkaido Eastern Iburi earthquake: Role of non-planar fault geometry | Tatsuya Hisakawa | |
| SCG61-P16 | A New Fully-Dynamic Earthquake Cycle Simulator Applicable to Arbitrary Nonplanar Fault Geometries - A Benchmark Test | Daisuke Sato | |
| SCG61-P17 | Stress and displacement Green's functions to treat volumetric inelastic strain and elastic inhomogeneity in boundary integral equation method | Daisuke Sato | |
| SCG61-P18 | Frictional properties of dolerite and granite at intermediate slip rates and controlled ambient temperatures | Michiyo Sawai | |
| SCG61-P19 | Extraction of features of strata using borehole data of geothermal area by multivariate analysis | Ojima Hiroki | |
| SCG61-P20 | Low-temperature thermochronology of Cretaceous granitoids from the northern Northeast Japan Arc: Towards reconstructing arc-parallel thermal/denudation histories | Shoma Fukuda | |
| SCG61-P21 | Uplift and denudation history of the South Fossa Magna region using low-temperature thermochronometric methods | Yumi Kobayashi | |
| SCG61-P22 | Correlation between residual uplift and recurrence interval of the Kanto earthquake based on developmental process of coastal lowland | Haeng-Yoong Kim | |
| SCG61-P23 | Mechanics preserving co-seismic uplift and marine terraces: dissymmetric patterns of co-seismic and inter-seismic deformation | Kyohei Suzuki | |
| SCG61-P24 | Enhanced resolution of stress tensor inversion by using fault instability analysis | Katsushi Sato | |
| SCG61-P25 | Focal mechanisms of the aftershocks of the 2000 Western Tottori Earthquake inferred from P wave first-motion data and spatial stress pattern | Takaki Iwata | |
| SCG61-P26 | Stress tensor inversion in focal area of the 2016 Mw7.8 Kaikoura earthquake, New Zealand | Miu Matsuno | |
| SCG61-P27 | Precise hypocenter distribution in the focal area of the 2016 Mw7.8 Kaikorua Earthquake, New Zealand | Yuta Kawamura | |
| SCG61-P28 | 3-dimensional GPS velocities in Colombia and their implications for interplate coupling | Sindy Carolina Lizarazo | |