• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Deep structure of the Median Tectonic Line revealed by an integrated seismic profiling across the Seto Inland Sea

Research Project

Project/Area Number 14204048
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Geology
Research InstitutionChiba University

Principal Investigator

ITO Tanio  Chiba University, Department of Earth Sciences, Professor, 理学部, 教授 (50111448)

Co-Investigator(Kenkyū-buntansha) TSUMURA Noriko  Chiba University, Department of Earth Sciences, Research Associate, 理学部, 助手 (00272302)
MIYAUCHI Takahiro  Chiba University, Department of Earth Sciences, Associate Professor, 理学部, 助教授 (00212241)
KANAGAWA Kyuichi  Chiba University, Department of Earth Sciences, Associate Professor, 理学部, 助教授 (40185898)
YAMAKITA Satoshi  Miyazaki University, Faculty of Education and Culture, Associate Professor, 教育文化学部, 助教授 (80210342)
宮内 崇裕  千葉大学, 理学部, 助教授 (99212241)
佐藤 比呂志  東京大学, 地震研究所, 助教授 (00183385)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥54,470,000 (Direct Cost: ¥41,900,000、Indirect Cost: ¥12,570,000)
Fiscal Year 2003: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2002: ¥41,470,000 (Direct Cost: ¥31,900,000、Indirect Cost: ¥9,570,000)
KeywordsSeto-Shikoku profile / Southwest Japan / Median Tectonic Line / seismic profiling / Philippine Sea Plate / lower crust / Aki fault / 瀬戸内海
Research Abstract

Trans-Seto and Shikoku seismic reflection profiling was made as a joint expedition of ERI, JAMSTEC and our research group based on this grant, the end of August, 2002. The deep crustal structure was indicated in an integrated profile of single-fold profiles. Significant results are summarized as follows :
1.The subducting Philippine Sea plate (PHS) is clearly recognized as a combination of reflective layers 1+2 and transparent layer 3.
2.The lower crust of the Japanese island arc is gently dipping southward and comes into contact with the PHS beneath the middle Shikoku.
3.The Median Tectonic Line (MTL) is dipping at about 30 degrees and merges into the lower crust beneath the Seto Inland Sea.
4.Major boundary faults, the Butsuzo Tectonic Line (BTL) and the Aki fault (AF) in the accretionary complexes are dipping northward and merges into the lower crust beneath the Seto Inland Sea.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] Ito, T., Sato, H., others: "Deep crustal structure of the Shikoku island to the Seto inland sea, SW Japan, revealed by the seismic experiment Shikoku 2002."Deep Seismic Profiling of the continents and their margins. 10. 73-74 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsurumi, J., Hosonuma, H., Kanagawa, K.: "Strain localization due to a positive feedback of deformation and myrmekite-forming reaction in granite and aplite mylonites along the Hatagawa Shear Zone of NE Japan."Journal of Structural Geology. 25(4). 557-574 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Imon, R., Okudaira, T., Kanagawa, K.: "Development of shape- and lattice-preferred orientations of amphibole grains during initial cataclastic deformation and subsequent deformation by dissolution-precipitation"Journal of Structural Geology. 26(5). 793-805 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Miyauchi, T., Tanaka, T., Ito, T., others: "Active tectonics of the Kannawa-Kozu-Matsuda fault system developed as a thrust-front migration process, central Japan, analyzed by seismic reflection profiling"Deep Seismic Profiling of the Continents and their Margins. 10. 99-100 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Ito, T: "Active faulting, lower crustal delamination and ongoing Hidaka arc-arc collision, Hokkaido, Japan."Seismotectonics in Convergent Plate Boundary (Y.Fujinawa et al., eds.). 219-224 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 宮脇崇裕(分担): "日本の地形2 北海道"東京大学出版会. 359 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Imon, R., Okudaira, T., Kanagawa, K.: "Development of shape-and lattice-preferred orientations of amphibole grains during initial cataclastic deformation and subsequent deformation by dissolution-precipitation creep in amphibolites from the Ryoke metamorphic belt, SW Japan."Journal of Structural Geology. 26. 793-805 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Ito, T., Sato, H., others: "Deep crustal structure of the Shikoku island to the Seto inland sea, SW Japan, revealed by the seismic experiment Shikoku 2002."Deep Seismic Profiling of the continents and their margins.. 10. 73-74 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Tsurumi, J., Hosonuma, H., Kanagawa, K.: "Strain localization due to a positive feedback of deformation and myrmekite-forming reaction in granite and aplite mylonites along the Hatagawa Shear Zone of NE Japan."Journal of Structural Geology. 25. 557-584 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kanagawa, K.: "Frictional behavior of synthetic gouge-bearing faults under the operation of pressure solution."Earth, Planets and Space. 54. 1147-1152 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Ito, T.: "Active faulting, lower crustal delamination and ongoing Hidaka arc-arc collision, Hokkaido, Japan."Seismotectonics in Convergent Plate Boundary (Fujiwara, Y., and Yoshida, A., eds.) (TERRAPUB, Tokyo). 219-224 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kazuka, T., Ito, T., Aida, Y.: "Eocene radiolarian fossils from the Sarugawa Formation, the Hidaka foreland fold-and-thrust belt, Hokkaido, Japan."Journal of the Geological Society of Japan. 108. 474-477 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Iwasaki, T., Yoshii, T., Ito, T., Sato, H., Hirata, N.: "Seismological features of island arc crust as inferred from recent seismic expeditions in Japan."Tectonophysics. 355. 53-66 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Ito, T., Iwasaki, T.: "New development on crustal studies on arc-arc collision zone."Bulletin of the Earthquake Research Institute, University of Tokyo. 77. 87-96 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Suzuki, K., Kawamura, T., Echigo, T., Iwasaki, T., Hirata, N., Sato, H., Miyauchi, T., Ito, T., Ikawa, T.: "Shallow structure of the Tokachi basin revealed by a seismic refraction experiment with dense receiver array, Hokkaido, Japan."Bulletin of the Earthquake Research Institute, University of Tokyo. 77. 131-138 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Ito, T., Sato, H., others: "Deep crustal structure of the Shikoku island to the Seto inland sea, SW Japan, revealed by the seismic experiment Shikoku 2002."Deep Seismic Profiling of the continents and their margins. 10. 73-74 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Tsurumi, J., Hosonuma, H., Kanagawa, K.: "Strain localization due to a positive feedback of deformation and myrmekite-forming reaction in granite and aplite mylonites along the Hatagawa Shear Zone of NE Japan"Journal of Structural Geology. 25(4). 557-574 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Imon, R., Okudaira, T., Kanagawa, K.: "Development of shape- and lattice-preferred orientations of amphibole grains during initial cataclastic deformation and subsequent deformation by dissolution-precipitation"Journal of Structural Geology. 26(5). 793-805 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Miyauchi, T., Tanaka, T., Ito, T., others: "Active tectonics of the Kannawa-Kozu-Matsuda fault system developed as a thrust-front migration process, central Japan, analyzed by seismic reflection profiling"Deep Seismic Profiling of the Continents and their Margins. 10. 99-100 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 宮内崇裕, 伊藤谷生, 佐藤比呂志: "掘削調査による国府津松田断層の活動履歴復元と断層形状"大都市大震災軽減化特別プロジェクトI成果報告書(文部科学省). 平成14年度. 250-255 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 宮内崇裕(分担): "日本の地形2 北海道"東京大学出版会. 359 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ito, T.: "Active faulting, lower crustal delamination and ongoing Hidaka arc-arc collision, Hokkaido, Japan"Seismotectonics in Convergent Plate Boundary (Y.Fujinawa et al., eds.). 219-224 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Iwasaki, T., Yoshii, T., Ito, T., others: "Seismological features of island arc crust as inferred from recent seismic expeditions in Japan"Tectonophysics. 355. 53-66 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 伊藤谷生, 岩崎貴哉: "島弧衝突研究の新展開"地震研究所彙報. 77. 87-96 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 香束卓郎, 菊池伸輔, 伊藤谷生: "日高衝突帯前縁褶曲・衝上断層帯の地下構造:石油公団 日高測線(H9 1-2, 3)反射記録の再処理と再解釈"地震研究所彙報. 77. 97-109 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kanagawa, K: "Frictional behavior of synthetic gouge-bearing faults under the operation of pressure solution"Earth, Planets and Space. 54. 1147-1152 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Tsurumi, J., Hosonuma, H., Kanagawa, K.: "Strain localization due to a positive feedback of deformation and myrmekite-forming reaction in granite and aplite mylonites along the Hatagawa Shear Zone of NE Japan"Journal of Structural Geology. 25. 557-584 (2003)

    • Related Report
      2002 Annual Research Report

URL: 

Published: 2002-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi