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1995 Fiscal Year Final Research Report Summary

Development of the crust continental in the colision zone

Research Project

Project/Area Number 05640530
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Petrology/Mineralogy/Science of ore deposit
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

HIRAJIMA Takao  Graduate School of Earth Science, Kyoto Univ., Assoc, Prof., 大学院・理学研究科, 助教授 (90181156)

Co-Investigator(Kenkyū-buntansha) BANNO Shohe  Graduate School of Earth Science, Kyoto Univ., Prof., 大学院・理学研究科, 教授 (30019468)
Project Period (FY) 1993 – 1995
Keywordsultra-high pressure rocks / Eclogite / Coesite / Su-Lu metamorphic belt / Dora Maira Massif
Research Abstract

The indoor experiments for the ultra-high pressure (UHP) rocks from Dora Maira Massif, western Alps, and from Su-Lu region in the Shandong Peninsula, China, were carried out.
Based on more than 600 thin section observation of the Dora Maira samples, a precise P-T-t path of the UHP rocks, especially P-T conditions of the climax UHP stage and a retrograde stage but under still higher pressure condition, were determined. A new amphibole group mineral, ferronyboeite was also identified as a retrograde phase of UHP rocks. The output of our geological and petrological studies were referred in two guide books of international meetings held in 1994 and 1995 in Italy.
Our study in the Shandong Peninsular reveals following facts :
1) The spatial distribution of the UHP rocks were determined in the Shandong Peninsular ; the area to the South of the Yantai-Qingdao-Wullian Fault.
2) UHP evidence were found from various kind of lithotypes, e.g., garnet-lherzolite, marble and metagranite. The UHP metagranite in Shandong is the first example in the Asia, and the second in the world.
3) Rb-Sr dating of the gneissose rocks indicates that the LP gneiss in the NW area of the Peninsular shows significantly older age (1800Ma) than the gneiss in the UHP area (700Ma). The latter age suggest the basement of the UHP area were correlated to the Yangtzi Craton.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Compagnoni, R., Hirajima, T., and Chopin, C.,: "Chapter7: Ultra-high-pressure metamorphic rocks in the western Alps." Ultrahigh pressure metamorphism"eds. by Coleman, R. G., and Wnag, X.,. 206-243. (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Zhang, R., Hirajima, et al.,: "Petrology of ultrahigh-pressure rocks from the southern Su-Lu region, eastern China," Jour. Mertamorphic Geology.,. 13,. 659-675. (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiramatsu, N., and Hirajima, T.,: "Petrology of the Hujialin garnet clinopyroxenite in the Su-Lu ultrahigh-pressure(UHP)province, eastern China.," lsland Arc,. 4,. 310-323 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiramatsu, N., Banno, S., Hirajima, T., and Cong. B.,: "Ultrahigh-pressure garnet lherzolite from Chijiadian, Rongcheng County, in the Su-Lu region of eastern China." lsland Arc,. 4,. 324-333. (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 平島崇男: "中国蘇魯帯で見出された超高圧変成作用の証拠." 月刊地球,. 18. 153-158. (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 石渡 明・平島崇男・Simon R. Wallis・榎並正樹: "中国蘇魯変成帯調査報告.-超高圧変成岩の温度圧力履歴と原岩の多様性について-" 月刊地球,. 18. 146-152. (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Compagnoni, R., Hirajima, T., and chopin, C., Chapter 7: "Ultra-high pressure metamorphic rocks in the western Alps." Ultrahigh pressure metamorphism" eds.by Coleman, R.G., and wnag, X.206-243 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Zhang, R., Hirajima, T., Banno, S., Cong, B., and Liou J.G.(1995): "Petrology of ultrahigh-pressure rocks from the southern Su-Lu region, eastern China" Jour.Mertamorphic Geology. 13. 659-675 (1955)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hiramatsu, N., and Hirajima, T.: "Petrology of the Hujialin garnet clinopyroxenite in the Su-Lu ultrahigh-pressure (UHP) province, eastern China." Island Arc. 4. 310-323 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hiramatsu, N., Banno, S., Hirajima, T., and Cong.B.: "Ultrahigh-pressure garnet Iherzolite from Chijiadian, Rongcheng County, in the Su-Lu region of eastern China." Island Arc. 4. 324-333 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hirajima, T.: "Ultrahigh-pressure evidence found in the Su-Lu region of eastern China." Gekkan Chikyu. 18. 153-158 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ishiwatari, A,Hirajima, T., Wallis, S.R., and Enami, M.: "Sceintifc report on the Field survey in the Su-Lu ultrahigh-pressure region of eastern China. - P-T-t paths of UHP rocks and variety of its protoliths. ----" Gekkan Chikyu. 18. 153-158 (1996)

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

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Published: 1997-03-04  

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