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Experimental and Analytical Studies on Partial Melting Structures of the Upper Mantle and the Lower Crusts

Research Project

Project/Area Number 10304043
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 InstitutionKYOTO UNIVERSITY

Principal Investigator

OBATA Masaaki  Graduate School of Science Professor, 大学院・理学研究科, 教授 (20126486)

Co-Investigator(Kenkyū-buntansha) KITAMURA Masao  Graduate School of Science, KYOTO UNIVERSITY, Prof., 大学院・理学研究科, 教授 (70004489)
MORI Takeshi  Graduate School of Science, KYOTO UNIVERSITY, Assoc. Prof., 大学院・理学研究科, 助教授 (80125963)
HIRAJIMA Takao  Graduate School of Science, KYOTO UNIVERSITY, Assoc. Prof., 大学院・理学研究科, 助教授 (90181156)
WALLIS Simon r.  Graduate School of Science, Nagoya University, Assoc. Prof., 大学院・理学研究科, 助教授 (30263065)
SHIMOBAYASHI Norimasa  Graduate School of Science, KYOTO UNIVERSITY, Assoc. Prof., 大学院・理学研究科, 助手 (70235688)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥17,800,000 (Direct Cost: ¥17,800,000)
Fiscal Year 2000: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1999: ¥15,800,000 (Direct Cost: ¥15,800,000)
Keywordsupper mantle / migmatite / partial melting / ultramafic rocks / magma / tourmaline / Ryoke belt / マントル / 地殻下部 / 融解 / メルト / かんらん岩 / 地殻
Research Abstract

The purpose of this project was to investigate the mechanisms of melting reactions, solid-melt separations and the magma generation through the observation and analysis of mantle-derived ultramafic rocks and migmatitc rocks occurring in high-temperature metamorphic terranes. For this purpose, we purchased in the first year an scanning electron microscope and in the second year, introduced an energy dispersive energy analysis system and assembled them as an energy dispersive electron microanalyzer system. Significant efforts were made to improve the accuracy and precision of the microprobe analysis. Other research achievements made during the research period are as follows : (1) Studies on the Horoman peridotite. Two papers were published in international journals. Characterization of inhomogeneity structure are being made in terms of major and trace element chemistry. (2) The tourmaline-out isograd have been established in the Ryoke metamorphic terrane, Aoyama area, Mie-Prefecture. The destabilization reaction of the tourmaline and the material transfer associated with the partial melting of rocks were investigated. The result have been published in one paper. (3) Geochemical data have been obtained for the migmatite and granitic rocks from the Higo metamorphic terrane, Kyushu. (4) Dehydration melting texture observed in a granitic xenolith enclosed in basaltic lava have been investigated. The results are written in a paper , which is in preparation for submitting to a journal. (5) A theoretical study was made on the rheology of partially molten granitic rocks and a critically review was made for the "Rheologically Critical Melt Percentage (RCMP) concept. The paper is submitted for possible publication in an international journal.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] Takazawa,E.: "Whole rock compositional variations in an upper mantle peridotite (Horoman,Hokkaido,Japan): a partial melting process?"Geochim. Cosmochim.Acta. 64・4. 695-716 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Takazawa,E.: "Polybaric petrogenesis of mafic layers in the Horoman peridotite complex, Japan."J.Petrology. 40・12. 1827-1851. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawakami,T.: "Tourmaline breakdown in the migmatite zone of the Ryoke metamorphic belt, SW Japan."J.Metamorphic Geology. 19・1. 61-75 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nakamura,D.: "Granulite-facies overprint on UHP rocks in the northeastern part of the Su-Lu region, eastern China."J.Petrology. 41・4. 563-582 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Matsumoto,N.: "Garnet in pelitic schists from a quartz eclogite unit of the southern Dora-Maira massif, western Alps."Schweiz.Mineral.Petrogr.Mitt.. 80. 53-62 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Wallis,S.: "A re-evaluation of eclogite facies metamorphism in SW Japan : proposal for an eclogite nappe"J.Metamophic Geology. 18. 653-664 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 坂野昇平: "岩石形成のダイナミクス"東京大学出版会. 304 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Takazawa, E.et. al.: "Polybaric petrogenesis of mafic layers in the Horoman peridotite complex, Japan."J.Petrology. 40-12. 1827-1851 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Takazawa, E.et. al.: "Whole rock compositional variations in an upper mantle peridotite (Horoman, Hokkaido, Japan) : Are they consistent with a partial melting process?"Geochim. Cosmochim. Acta. 64-4. 695-716 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kawakami, T.: "Tourmaline breakdown in the migmatite zone of the Ryoke metamorphic belt, SW Japan."J.Metamorphic Geology. 19-1. 61-75 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Nakamura, D.and Hirajima, T.: "Granulite-facies overprint on UHP rocks in the northeastern part of the Su-Lu region, eastern China."J.Petrology. 41-42. 563-582 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Matsumoto, N.and Hirajima, T.: "Garnet in pelitic schists from a quartz eclogite unit of the southern Dora-Maira massif, western Alps."Schweiz. Mineral. Petrogr. Mitt.. 80. 53-62 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Wallis, S.and Aoya, M.: "A re-evaluation of eclogite facies metamorphism in SW Japan : proposal for an eclogite nappe."J.Metamophic Geology. 18. 653-664 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Banno, S.et. al.: "Dynamics of Petrogenesis"University of Tokyo Press. 304 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Takazawa,E: "Whole rock compositional variations in an upper mantle peridotite (Horoman, Hokkaido, Japan): a partial melting process?"Geochim.Cosmochim.Acta. 64・4. 695-716 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Takazawa,E.: "Polybaric petrogenesis of mafic layers in the Horoman peridotite complex, Japan."J.Petrology. 40・12. 1827-1851 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kawakami,T.: "Tourmaline breakdown in the migmatite zone of the Ryoke metamorphic belt, SW Japan."J.Metamorphic Geology. 19・1. 61-75 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Nakamura,D.: "Granulite-facies overprint on UHP rocks in the northeastern part of the Su-Lu region, eastern China."J. Petrology. 41・4. 563-582 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Matsumoto,N.: "Garnet in pelitic schists from a quartz eclogite unit of the southern Dora-Maira massif, western Alps."Schweiz.Mineral.Petrogr.Mitt.. 80. 53-62 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Wallis.S.: "A re-evaluation of eclogite facies metamorphism in SW Japan : proposal for an elogite nappe"J.Metamophic Geology. 18. 653-664 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 坂野昇平: "岩石形成のダイナミクス"東京大学出版会. 304 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Takazawa E.: "Polybaric petrogensis of mafic layers in the Horoman peridotite complex, Japan"J. Petrology. 40巻12号. 1827-1851 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 赤塚貴史: "室戸岬斑れい岩の層状構造,特にピクライト質斑れい岩の成因について"地質学雑誌. 105巻11号. 771-788 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Takazawa E.: "Whole-rock compositional variations in an upper mantle peridotite (Horoman. Hokkaido, Japan)"Geochim. Oosmochim. Acta. (印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hirajima T.: "Preservation and retrogression of ultrahigh pressure rocks: case study of UHP metagranitoids"Mem. National Iust. Polar Res.,. 53. (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Wallis S.R.: "Exhuming the Sanbagawa belt: the importance of tectonic discontiuuities"J. Metamorphic Geology. 16. 83-95 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] Aoya M.: "Structural and microstrudural constrains on the mechanism of edogite formation in the Sanhagawa belt"J. Structural Geology. 21. 1561-1573 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 坂野昇平: "岩石形成のダイナミクス"東京大学出版会. 304 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Jin.D.,Karato.S.,Obata,M.: "Mechanisms of shear localization in the continental lirhosphere: inference from the deformation microstructures of peridotires." Jour.Struct.Geology. 20. 195-209 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 森下律生、秋月盛雄、小畑正明: "空間相関による塩基性火成貫入岩体の組織変化の定量的研究" 火山. 43巻・5号. 283-295 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Shirahata,K.,Xu,Y.,and Hirajima,T.: "Al-Fe^<3+> substitution in Sanbagawa pyralspite garnet." Mineralogy and Petrology. 62. 73-87 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hirajima,T: "Preservation and retrogression of ultra high pressure rocks: case studies of UHP metagranitoics in western Alps and Su-Lu region" Mem.National Polar Pes. 53(in press). (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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