Solid Earth Sciences (S)
Session Sub-categoryComplex & General(CG)
Session IDS-CG58
TitleBrittle-Ductile Transition and Supercritical Geofluids for Crustal Energy in Island Arc
Short TitleCrustal Energy in Island Arc
Main Convener NameNoriyoshi Tsuchiya
AffiliationGraduate School of Environmental Studies, Tohoku University
Co-Convener 1NameHiroshi Asanuma
AffiliationAIST
Co-Convener 2NameYasuo Ogawa
AffiliationVolcanic Fluid Research Center, School of Science, Tokyo Institute of Technology
Co-Convener 3NameShigemi Naganawa
AffiliationAkita University
Session LanguageJ
Scope Nature of rock mass below the brittle-ductile transition (BDT) is of great scientific interest to understand various phenomenon in the Earth's crust. We will review and discuss current understanding of characteristics the rock mass below the BDT, including composites, stress, failure mechanism induced by liquid injection and associates earthquake generation mechanism, and water rock interaction, considering engineered geothermal development in the BDT. Discussions on the possible phenomena in the geothermal development in the BDT will be followed in this session.
New drilling technology is key of issues. This session will cover advanced drilling technology under high temperature conditions for energy extraction.

Presentation FormatOral and Poster presentation
Invited AuthorsKenichi Hoshino (Department of Earth and Planetary Systems Science, Hiroshima University)
TimePresentation NoTitlePresenterAbstract
Oral Presentation May 30 PM1
13:45 - 13:55SCG58-01Supercritical Geothermal Resources as a Function of Mass and Energy Transport in Subduction ZoneNoriyoshi Tsuchiya
13:55 - 14:05SCG58-02Outline of NEDO Supercritical Geothermal ProjectHiroshi Asanuma
14:05 - 14:30SCG58-03Mineral precipitation/dissolution from water and brine with decreasing temperatures along hydrostatic pressuresKenichi Hoshino
14:30 - 14:45SCG58-04Thermodynamic data of aqueous species for supercritical water–rock interaction: dissolution experiments and density-based extrapolationAtsushi Okamoto
14:45 - 15:00SCG58-05Nitrogen isotope ratios of ammonium in hypersaline hot spring waters distributed along Arima-Takatsuki fault zone.Kazuhiro Amita
15:00 - 15:15SCG58-06Crustal fluid pressure gradients and permeability estimated from fluid-rock reaction zonesMasaoki Uno
Oral Presentation May 30 PM2
15:30 - 15:45SCG58-073D S-wave velocity structure in volcanic region using surface-wave tomographyHiro Nimiya
15:45 - 16:00SCG58-08Resistivity-Based Temperature and Permeability Estimation of the Kakkonda Geothermal Field, Japan, Using a Neural NetworkUgou Tsubasa
16:00 - 16:15SCG58-09Preliminary report on geothermal structure revealed by geological and MT surveys around Akayumatasawa river in Sanzugawa caldera, NE JapanKeishi Nunohara
16:15 - 16:30SCG58-10Characterization of hydraulic fracturing phenomena in supercritical geothermal environments revealed by elastic wave measurementsMiura Takahiro
16:30 - 16:45SCG58-11Experimental measurements of transport pore radius of thermally cracked granite and the relationship of pore structure to permeabilitySueyoshi Kazumasa
16:45 - 17:00SCG58-12Geothermal reservoir evaluation by using TL of Quartz and Fluid Flow Simulation Model of the Kakkonda system in JapanAlvaro Josue Amaya
Presentation NoTitlePresenterAbstract
Poster Presentation May 30 AM2
SCG58-P01Mechanical and hydrological properties of granite under supercritical fluid conditionsManami Kitamura
SCG58-P02Three-dimensional electrical resistivity structure of kuju Volcano, Central Kyushu, Japan revealed by Magnetotelluric survey dataSabry Abdallah
SCG58-P03Preliminary Report on Themoluminescence Geothermal Exploration in Northern Area of Mt. Kurikoma (Akayumata-River), NE Japan.Hiroki Okano
SCG58-P04Experimental Study of Critical Point Determination for Multicomponent Fluids using light-scattering Spectroscopic MethodNobuo Hirano
SCG58-P05Transport and Reaction Behavior of Supercritical Geofluid Revealed by Porphyry Copper DepositGeri Agroli
SCG58-P06Characteristics of precipitation of amorphous silica and its influences on permeability of fractured granite in superhot geothermal environmentsHikaru Abe
SCG58-P07Evolution and The Total Budget of Fluid in Granitic Magma through Magmatism and Volcanism in The Subduction Zone, NE JapanFajar Febiani Amanda
SCG58-P08Porosity generation during feldspar replacement as the mark of potassium-rich supercritical fluids on the top of granitic intrusionAstin Nurdiana
SCG58-P09Quantitative evaluation of fracture distribution in granite and the relationship between fracture distribution and physical propertiesManami Kadono