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1999 Fiscal Year Final Research Report Summary

Development of a new high-temperature hydrothermal gas apparatus for studying deformation, fluid-flow and grain-boundary diffusion

Research Project

Project/Area Number 09354006
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Geology
Research InstitutionKyoto University (1998-1999)
The University of Tokyo (1997)

Principal Investigator

SHIMAMOTO Toshihiko  Graduate School of Science, Kyoto University, Professor, 大学院・理学研究科, 教授 (20112170)

Co-Investigator(Kenkyū-buntansha) OHTOMO Yukiko  Department of Education, Yamagata University, Associate Professor, 教育学部, 助教授 (40143721)
TAGAMI Takahiro  Graduate School of Science, Kyoto University, Associate Professor, 大学院・理学系研究科, 助教授 (80202159)
YAMAJI Atsushi  Graduate School of Science, Kyoto University, Associate Professor, 大学院・理学研究科, 助教授 (40212287)
UNO Hiroshi  Development Section, Saginomiya Co.Ltd., Chief, 開発課, 部長
SHIMIZU Ichiko  Graduate School of Science, University of Tokyo, Assistant, 大学院・理学系研究科, 助手 (40211966)
Project Period (FY) 1997 – 1999
KeywordsServi-controlled gas apparatus / fault / permeability / fluid circulation / grain-boundary diffusion / pore pressure / mechanism of earthquake generation / fault constitutive property
Research Abstract

Deformation of rocks, and fluid flow and material transport via pore fluid in rocks at temperatures and pressures are significant in many problems such as understanding the mechanisms of earthquakes and their prediction, fluid circulation in the Earth, and Earth's environmental problems that are important both scientifically and socially. High-quality deformation and fluid-flow gas apparatus is needed for such studies, but gas apparatuses have not been developed in Japan. Thus the main task of the present research has been to design and make a conventional gas apparatus for studying deformation and fluid flow at temperatures to 1,000 degrees Centigrade and at pressures to 200 Mpa. Also, it has been important to establish an industrial foundation for producing and refining gas apparatuses domestically in the future. Although the maximum pressure was limited to 220 Mpa because of the government regulation on high-pressure gas, a high-temperature and high-pressure gas apparatus was develo … More ped successfully in the three-year period of this research. This apparatus cannot produce as high confining pressure (about 500 Mpa) as gas apparatuses used in other countries, but it is equipped with better servo-controlled actuators for the axial load and pore pressure than foreign apparatuses. Thus, the present apparatus is capable of measuring a very wide range of permeability using various methods such as the pore-pressure oscillation method and the pulse-decay technique. The apparatus will open ways for studying material properties under highly corrosive environments like supercritical water and has many industrial applications.
The apparatus has been used to study permeability structures of fault zones of Nojima fault, Median Tectonic Line, Yanagase fault, a nappe-boundary fault in Chugoku district, and Kan-nawa fault at effective pressures to 180 Mpa and at room temperatures, using NィイD22ィエD2 gas as the pore fluid. The results have revealed large effects of effective-pressure cycling and quite variable permeability structures depending on the tectonic setting and the type of country rocks of faults. The work will be extended to fault constitutive properties and to more permeability measurements at temperatures and pressures. Less

  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] Tsutumi A. and Shimamoto T.: "High velocity frictional properties of gabbro"Geophys. Res. Letters. 24. 699-702 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kawamoto E. & Shimamoto T.: "Mechanical behavior of halite ad calcite shear zones from brittle to fully-plastic deformation and a revised fault model"Proc. 30th IGC Beijing. 5. 89-105 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tsutsumi A. and Shimamoto T.: "Temperature measurements along simulated faults during seismogenic fault motion"Proc. 30th IGC Beijing. 5. 223-232 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yamaji A.: "The multiple inverse method : a new technique to separate stresses from heterogeneous fault-slip data"Jour. Struct. Geol. 22. 441-452 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shimizu I.: "Stress and temperature dependence of recrystallized grain size : A subgrain misorientation model"Geophys. Res. Letters. 25. 4237-4240 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 嶋本利彦: "地殻の変形とテクトニクス"地殻の形成(岩波講座地球惑星科学8),岩波書店(東京). 183-255 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shimizu I.: "Nonequilibrium thermodynamics of nonhydrostatically stressed solids"Earthquake Thermodynamics and Phase Transformation in the Earth's Interior, edited by R. Teissevre and E. Maiewski Academic Press. (印刷中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shimamoto, T.: "Crustal deformation and tectonics (in Japanese)"Iwanami Earth and Planetary Science Series 8, "Formation of the Crust", Iwanami, Tokyo. 183-255 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tsutsumi, A. and Shimamoto, T.: "High-velocity frictional properties of gabbro"Geophys.Res.Letters. 24. 699-702 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tsutsumi, A. and Shimamoto, T.: "Temperature measurements along simulated faults during seismogenic fault motion"Proceedings of the 30th IGC Beijing, "Contemporary Lithospheric Motion and Seismic Geology". vol.5. 223-232 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kawamoto, E. and Shimamoto, T.: "Mechanical behavior of halite and calcite shear zones from brittle to fully-plastic deformation and a revised fault model"Proceedings of the 30th IGC Beijing. 14. 89-105 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shimizu, I.: "The nonequilibrium thermodynamics of intracrystalline diffusion under nonhydrostatic stress"Philosophical Magazine. 75. 1221-1235 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Friedman, M., Logan, J. M. and Shimamoto, T.: "Cataclastic fabrics in experimental shear zones"in Shoke, A. W., Tullis, J. and Todd, V. R., eds., Fault-Related Rocks - A Photographic Atlas, Princeton Univ.Press. 70-71 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shimizu, I.: "Stress and temperature dependence of recrystallized grain size : a subgrain misorientation model"Geophys.Res.Lett.. 25. 4237-4240 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kawamoto, E. and Shimamoto, T.: "The strength profile for bimineralic shear zones : an insight from high-temperature shearing experiments on calcite-halite mixtures"Techtonophysics. 295. 1-14 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shimizu, I: "Lognormality in crystal size distribution in dynamic recrystallization"FORMA. vol.13. 1-11 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shimizu, I.: "A stochastic model of grain size distribution during dynamic recrystallization"Philosophical Magazine. 79. 1217-1231 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shimizu, I.: "Nonequilibrium thermodynamics of nonhydrostatically stresses solids, in : Teissevre and E. Maiewski, eds., Earthquake Thermodynamics and Phase Transformation in the Earth's Interior"Academic Press. ((in press))

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2001-10-23   Modified: 2017-10-02  

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