JpGU Meeting 2018
Session outline| Solid Earth Sciences(S) | ||
|---|---|---|
| Session Sub-category | Complex & General | |
| Session ID | S-CG57 | |
| 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 | EJ | |
| 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 geofluids, as well as interdisciplinary studies, that relate to the dynamic behaviour of mobile belts. | |
| Presentation Format | Oral and Poster presentation | |
| Invited Authors |
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| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 22 PM1 | ||||
| 13:45 - 14:00 | SCG57-01 | "0.1 Manten" hyper dense seismic observation for a sight of crustal activity –preliminary result about focal mechanisms around source fault hosting the 2000 Western Tottori EQ (M7.3) – | Satoshi Matsumoto | Abstract |
| 14:00 - 14:15 | SCG57-02 | Fluid in the lower crust estimated by a high-resolution reflection analysis in the northern Kinki district, southwestern Japan | Shinya Kato | Abstract |
| 14:15 - 14:30 | SCG57-03 | Fluid distribution in crust inferred from seismic velocities and electrical conductivity | Tohru Watanabe | Abstract |
| 14:30 - 14:45 | SCG57-04 | Stress rotation found in the aftershock area of the 2000 Western Tottori Earthquake and its temporal variation | Takaki Iwata | Abstract |
| 14:45 - 15:00 | SCG57-05 | Aftershock observation of the 2016 Central Tottori Earthquake | Yoshihisa Iio | Abstract |
| 15:00 - 15:15 | SCG57-06 | Modeling deformation and stress state in the San-in strain concentration zone | Bunichiro Shibazaki | Abstract |
| Oral Presentation May 22 PM2 | ||||
| 15:30 - 15:45 | SCG57-07 | Accelerated Subduction Following Megathrust Earthquakes in Japan, Sumatra, and Chile | Mohammad Yuzariyadi | Abstract |
| 15:45 - 16:00 | SCG57-08 | Stress change in the northern Ibaraki prefecture and the Fukushima Hamadori areas from geodetic and seismicity data | Takahiko Uchide | Abstract |
| 16:00 - 16:15 | SCG57-09 | A detailed view of the earthquake swarms triggered by the pore pressure change after the 2011 Tohoku-Oki earthquake: Rupture directivity and frictional strength variation on faults | Keisuke Yoshida | Abstract |
| 16:15 - 16:30 | SCG57-10 | Modeling absolute stress in the Northeast Japan island arc and stress change caused by the 2011 Tohoku earthquake | Ryohei Sasajima | Abstract |
| 16:30 - 16:45 | SCG57-11 | Absolute Stress Fields in the Source Region of the 1992 Landers Earthquake | Toshiko Terakawa | Abstract |
| 16:45 - 17:00 | SCG57-12 | Reconsideration of moment tensor: two different representations and their physical meanings | Mitsuhiro Matsu'ura | Abstract |
| Oral Presentation May 23 AM1 | ||||
| 09:00 - 09:15 | SCG57-13 | Aseismic crustal deformation in southwestern Taiwan: Insights into the driving mechanisms | Kotaro Tsukahara | Abstract |
| 09:15 - 09:30 | SCG57-14 | Dense thermochronometric mapping in the NE Japan Arc: Constraint the uplift style of the mountains based on apatite fission-track (AFT) analysis | Shoma Fukuda | Abstract |
| 09:30 - 09:45 | SCG57-15 | Thermochronologic mapping of the Japan Arc: Toward reconstruction of the long-term uplift-denudation history | Takahiro Tagami | Abstract |
| 09:45 - 10:00 | SCG57-16 | Elastic and Inelastic behavior in the Mid-Niigata area as observed by a dense GNSS network through the preseismic, coseismic and postseismic deformation of the 2011 Tohoku-oki earthquake | Angela Meneses-Gutierrez | Abstract |
| 10:00 - 10:15 | SCG57-17 | Localized strain rate in the Tohoku region before and after the Tohoku-Oki earthquake | Tomomi Inamatsu | Abstract |
| 10:15 - 10:30 | SCG57-18 | Pulverization in a meta-anorthosite of a lower crustal shear zone | Yusuke Soda | Abstract |
| Oral Presentation May 23 AM2 | ||||
| 10:45 - 11:00 | SCG57-19 | Intraplate faulting, stress accumulation, and shear localization of a crust-upper mantle system with nonlinear viscoelastic rheologies | XUELEI ZHANG | Abstract |
| 11:00 - 11:15 | SCG57-20 | Geodetic exploration of the elastic/inelastic behavior of the Earth’s crust: resolution of mechanical response using interseismic, coseismic, and postseismic deformation | Takeshi Sagiya | Abstract |
| 11:15 - 11:30 | SCG57-21 | Model construction of heterogeneous fault deformation at depth: Fault rocks along the Median Tectonic Line, eastern Kii peninsula, SW Japan. | Takuma Katori | Abstract |
| 11:30 - 11:45 | SCG57-22 | Model construction of heterogeneous fault deformation at depth: Fault zone architecture along the Median Tectonic Line, eastern Kii peninsula, SW Japan. | Norio Shigematsu | Abstract |
| 11:45 - 12:00 | SCG57-23 | Frictional properties of fault rocks developed along the Median Tectonic Line | Ichiko Shimizu | Abstract |
| 12:00 - 12:15 | SCG57-24 | Development of the Median Tectonic Line fault zone, Mie Prefecture, southwest Japan: Strain localization and softening | Toru Takeshita | Abstract |
| Oral Presentation May 23 PM1 | ||||
| 13:45 - 14:00 | SCG57-25 | Kinematic history along the Hinagu fault zone, Kumamoto Prefecture, Kyushu, Japan | Kenta Kobayashi | Abstract |
| 14:00 - 14:15 | SCG57-26 | Change in state of stress around Hinagu fault zone through the 2016 Kumamoto earthquake sequence, central Kyushu, Japan | Ayaho Mitsuoka | Abstract |
| 14:15 - 14:30 | SCG57-27 | Transient Deformation Following the 2016 Kumamoto Earthquake: Towards Building a Rheological Model of Kyushu | James Daniel Paul Moore | Abstract |
| 14:30 - 14:45 | SCG57-28 | Crustal stress accumulation and release estimated from elastic/inelastic strain analysis: the 2016 Kumamoto earthquake | Akemi Noda | Abstract |
| 14:45 - 15:00 | SCG57-29 | The role of power-law viscoelastic flow and fault friction in post-earthquake deformation after the 2011 Tohoku-Oki earthquake | Ryoichiro Agata | Abstract |
| 15:00 - 15:15 | SCG57-30 | Nonlinear mechanical coupling between viscoelastic relaxation and deep afterslip in the post-seismic deformation of the 2011 Tohoku-oki earthquake | Jun Muto | Abstract |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 23 Core Time | |||
| SCG57-P01 | Three-dimensional deformation of tectonic mélange indicated by slickenlines on foliation: An example from the Cretaceous Miyama Formation in the Kii Peninsula, Southwest Japan | Noriaki Abe | Abstract |
| SCG57-P02 | Brittle shear zone exposed on the coast near Otachi Cape of southern part of Kumamoto Prefecture and geological structure around it | Keiji Ogashiwa | Abstract |
| SCG57-P03 | reacitivation of Median Tectonic Line and alternation in sambagawa metamorphic belt in Mie prefecture | Yuichi Hanada | Abstract |
| SCG57-P04 | Experimentally determined strength profile of the Median Tectonic Line fault zone | Miki Takahashi | Abstract |
| SCG57-P05 | Geological structure analysis of active fault segment boundary in the southern part of the Ohchigata fault zone, central Ishikawa Prefecture,Japan | Keita Takahashi | Abstract |
| SCG57-P06 | Misconstrues related to grain size reduction and exsolution/phase separation in plagioclase under lower crustal conditions | Taku Matsuda | Abstract |
| SCG57-P07 | Integrated deformation scheme around the northern Izu-Bonin arc, as a "strain concentrated zone" including N-S crustal-shortening | Takao Eguchi | Abstract |
| SCG57-P08 | Estimation of paleo-stress field, alteration and diagenetic environment using deformed conglomerate in trench fill sediment -As an example of Izu-Bonin arc multiple collision zone- | Shun Suzuki | Abstract |
| SCG57-P09 | Post-rift, Middle Miocene stress regime of the NE Japan arc inferred from dikes and mesoscale faults in the Kakunodate area | Toshiki Haji | Abstract |
| SCG57-P10 | The relation between the Vp/Vs distribution and shallow earthquake generation in the central part of the backbone range, northeastern Japan arc | Sumire Maeda | Abstract |
| SCG57-P11 | Postseismic displacement field associated with the 2011 Tohoku-oki earthquake by temperature dependent viscosity model | Yuval Banay | Abstract |
| SCG57-P12 | Mechanism of vertical displacement on the Northeast Japan fore-arc region through gigantic earthquake cycles | Ryohei Sasajima | Abstract |
| SCG57-P13 | A resonance frequency map of Japan: Does the crust resonate? | Atsuko Namiki | Abstract |
| SCG57-P14 | An estimate of the contraction rate of central Japan through the deformation of the Philippine Sea slab | Yukitoshi Fukahata | Abstract |
| SCG57-P15 | Uplift and denudation history of the South Fossa Magna region revealed by low-temperature thermochronometric methods | Yumi Kobayashi | Abstract |
| SCG57-P16 | Persistent and time-dependent characteristics of crustal deformation in the Central-Northern Nagano area associated with the 2011 Tohoku-oki and the 2014 Northern Nagano earthquakes | Koki Kumagai | Abstract |
| SCG57-P17 | Coulomb stress change on the fault in Japan assumed from focal mechanism estimated from GNSS surface displacements of GEONET | Masayuki Yamanaka | Abstract |
| SCG57-P18 | Characteristics of the seismic gap in west part of the central Kyushu, Japan | Yuhei Yuasa | Abstract |
| SCG57-P19 | Detailed hypocenter distribution and fault structure in the 2017 M 5.3 Kagoshima Bay earthquake sequence | Yoshiaki Matsumoto | Abstract |
| SCG57-P20 | Characteristics of focal mechanism solution of the earthquakes in the source region of the 2000 Western Tottori Earthquake based on "0.1 Manten" hyper dense seismic observation | Yuto Hayashida | Abstract |
| SCG57-P21 | Precise hypocenters determined by the "0.1 Manten" hyper dense seismic network: Implication of faulting structure linked to geological observation | Aitaro Kato | Abstract |
| SCG57-P22 | Fault development process and paleostress fields in the 2000 Western Tottori Earthquake | Hideto Uchida | Abstract |
| SCG57-P23 | Construction of a dynamic fault model of the 2016 Tottoriken-chubu earthquake based on kinematic source inversion | Keisuke Sato | Abstract |
| SCG57-P24 | Three dimensional S-wave velocity structure near the fault zones of the 2000 western Tottori earthquake using surface wave tomography | Yudai Suemoto | Abstract |
| SCG57-P25 | Spaciotemporal Stress Change during the 2016 Mw 7.8 Kaikoura earthquake, New Zealand | Tomomi Okada | Abstract |
| SCG57-P26 | P-wave anisotropic tomography of the Alps | Dapeng Zhao | Abstract |
| SCG57-P27 | Change of pore connectivity in granular materials under confining pressures | MAREMICHI ABE | Abstract |
| SCG57-P28 | A new apparatus for measuring elastic wave velocity, electrical conductivity and permeability of fluid-saturated rocks at various confining and pore-fluid pressures | Katazakai Haruka | Abstract |
| SCG57-P29 | Simultaneous measurements of elastic wave velocity and electrical conductivity in brine-saturated rocks under confining pressures | Aya Konno | Abstract |
| SCG57-P30 | Percolation of cracks in annealed alumina polycrystalline aggregates | Yohei Kaiwa | Abstract |
| SCG57-P31 | Elastic wave velocity change caused lawsonite decomposition in blueschist at 1.0GPa and up to 550℃ | Hayate Sakuragi | Abstract |
| SCG57-P32 | Ultrasonic velocity measurements of plycrystalline clinopyroxene under high P-T conditions | Yumiko Tsubokawa | Abstract |