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1997 Fiscal Year Final Research Report Summary

Science of textures for earth and planetary materials

Research Project

Project/Area Number 07304043
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Petrology/Mineralogy/Science of ore deposit
Research InstitutionOsaka University

Principal Investigator

TSUCHIYAMA Akira  Osaka University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (90180017)

Co-Investigator(Kenkyū-buntansha) OBATA Masaaki  Kyoyo University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (20126486)
KAI Shoichi  Kyushu University, Faculty of Engineering, Professor, 工学部, 教授 (20112295)
NISHIYAMA Tadao  Kyushu University, Faculty of Science, Associate Professor, 理学部, 助教授 (10156127)
NAKASHIMA Satoru  Hokkaido University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (80237255)
Project Period (FY) 1995 – 1997
Keywordserth and planetary materials / textures / structures / pattern formation / complex system / composite system / functions / imaging
Research Abstract

Materials composed of earth an terrestrial planets and related experimental products have a variety of textures, from microscopic in atomic scales to macroscopic, depending on their conditions during formation and their histories. The purpose of the present study was to understand the formation and functions of the textures systematically by different approaches of describing, experimental and theoretical methods beyond the boundaries of individual scientific fields. Two research meetings or one meeting and one workshop were held in each academic year. In the "technical workshop on imaging, experiments and simulation (1) and (2)", establishment of basic method on quantitative description of the textures, especially on imaging technique, and experiments and simulations of texture formation were performed and discussed. In the research meetings, formation and functions of the textures were actively discussed by researchers both on earth and planetary materials and pattern formation physics. Differences between sciences on the textures of earth and planetary materials and metals were also discussed. As a result, it was concluded that the pattern formation physics in complex systems, especially in composite systems, is the most important clue to the formation of the textures, and that the development of a method which combines microscopic and macroscopic properties (e.g., combination of molecular simulation and homogenization method) is important to elucidate the functions of the textures.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] M.Kondo, A.Tsuchiyama, H.Hirai and A.Koishikawa: "High resolution X-ray computed tomography(CT)images of chondrites and chondrules" Antarctic Meteorite Res.10. 437-447 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Kai: "Diversity and complexity of patterns in nonequilibrium systems.-pattern formation in electrohydrodynamic instability" Complexity and Diversity. Ed.R.Nakamura. 99-107 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Nishiyama: "Kinetic modeling of coesite-quartz transition in an elastic field and its implication for efhumation of ultra-high pressure metamorphic rocks" Island arc. (印刷中). (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Nakahara and T.Ishida: "1/f^α density fluctuation at the sluggish transition point of granular flows" Phy.Rev.E55. 4264-4273 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N.Yanagisawa, K.Fujimoto, S.Nakashima, Y.Kurada & N.Sanada: "Micro FT・IR study of hydration-layer during dissolution of Silica glass" Geochem.Cosmochim.Acta. 61. 1165-1170 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Nishimori, M.Yamasaki and K.H.Andersen: "A Simple model for the various pattern dynamics of dures" Int.J.Mol.Phy.B. (印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 太田 隆夫: "界面ダイナミクスの数理" 日本評論社, 100 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 高木 隆司: "巻き貝はなぜらせん形か" 講談社, 207 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Kondo, A.Tsuchiyama, H.Hirai and A.Koishikawa: "High resolution X-ray computer tomography (CT) images of chondrites and chondrules." Antarctic Metorite Res.10. 437-447 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Kai: "Diversity and Complexity of Patterns in Nonequilibrium Systems-Pattern Formation in Electrohydrodyamic Instability." Complexity and Diversity (R.Nakamura ed., Springer-Verlag). 99-107 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Nishiyama: "Kinetic modeling of coesite-quartz transition an elastic field and its implication for exhumation of ultra-high pressure metamorphic rocks." Island Arc. (in press). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A.Nakahara and T.Isoda: "1/f^3 density fluctuation at the sluggish transition point of granular flows." Phys.Rev.E.55. 4264-4273 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N.Yanagisawa, K.Fujimoto, S.Nakashima, Y.Kurata, and N.Sanada: "Micro FT-IR study of hydration-layr during dissolution of silica glass." Geochim.Cosmochim.Acta.61. 1165-70 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Nishimori, M.Yamasaki, and K.H.Andersen: "A simple model for the various pattern dynamics of dunes." Int.J.Mod.Phys.B.(in press). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Ohta.: Mathematics of interface dynamics. Nihon Hyoronsha (in Japanese), 100 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] R.Takaki: Why are snails screw shaped?. Koudansha (in Japanese), 207 (1997)

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

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Published: 1999-03-16  

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