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Geochemical Study of Collision Volcanism at the Plate Boundary in Turkey -Comparison With Subduction Volcanism in Japan-

Research Project

Project/Area Number 63041085
Research Category

Grant-in-Aid for Overseas Scientific Survey.

Allocation TypeSingle-year Grants
SectionField Research
Research InstitutionKobe University

Principal Investigator

MATSUDA Jun-ichi  Associate Professor, Kobe University, 理学部, 助教授 (80107945)

Co-Investigator(Kenkyū-buntansha) FUJITANI Tatsuya  Associate Professor, Marine Technical College, 教養科, 助教授
KITA Itsuro  Associate Professor, Akita University, 鉱山学部, 助教授 (10143075)
NAGAO Keisuke  Associate Professor, Okayama University, 地球内部研究センター, 助教授 (40131619)
NOTSU Kenji  Associate Professor, Tokyo University, 理学部, 助教授 (80101103)
UI Tadahide  Professor, Kobe University, 理学部, 教授 (10007164)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥10,000,000 (Direct Cost: ¥10,000,000)
Fiscal Year 1989: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1988: ¥8,000,000 (Direct Cost: ¥8,000,000)
KeywordsGeochemistry / Volcano / Turkey / Collision boundary / Sr isotope / noble gas / He isotope / Carbon isotope
Research Abstract

All these geochemical data show that there are inhomogeneity in the upper mantle structure related with the plate tectonics in Turkey. In the eastern part, Sr isotopic rations of Karacadag are low, suggesting the less contribution of magma-crust interaction. Sr isotopes for the volcanoes in the lake Van area vary locally. The Sr rations of Nemurut have a correlation with SiO_2 contents, indicating the crustal contamination. He isotopes in this area is higher than that of air, and suggest the presence of mantle He. The value of mantle He is the same as that in the subduction area, suggesting that the He isotopes are the same in both subduction and collision area. In the central part of Turkey, Sr isotopes of Erciyes and Hasan are 0.7038-0.7058 which are in the range of the subduction area. He isotopes show the higher degree of crustal contamination than that in the eastern Turkey. In the western Turkey, the radiogenic ^4He was observed in all over the geothermal area in the Aegean coast. However, the high high ^3He/^4He ratios and low carbon isotopes are obtained in Kula, where Sr isotopes are also very low (0.7030-0.7035). Kula seem to be very special if it is on the extension of Aegean island arc. It should be necessary to examine the Aegean arc in future in comparison with this study.

Report

(1 results)
  • 1989 Final Research Report Summary
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 松田准一: "トルコにおけるプレ-ト衝突境界の地球化学的研究ー日本における沈み込み帯との比較ー" DELPニュ-ス. 24. 11-15 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 宇井忠英: "トルコの火山" 火山第2集. 34. 87-88 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] K.Nagao,I.Kita,J.Matsuda,T.Ercan: "Turkiye'deki Kuvaterner Yasli volkanik alanlarda asal gaz de karbon izotopik bilesimleri" Jeomorfoloji Dergisi. 17. 101-110 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] J.Matsuda,K.Matsubara,H.Yajima,K.Yamamoto: "Anomalous Ne enrichment in obsidians and Darwin glass;Diffusion of noble gases in silica-rich glasses" Geochim.Cosmochim.Acta. 53. 3025-3033 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] K.Nagao,J.Matsuda,I.Kita,T.Ercan: "Noble gas and carbon isotopic compositions of gas samples from Quaternary volcanic areas on a collisional plate boundary in Turkey"

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Jun-ichi Matsuda: "Geochemical study of collision volcanism at the plateboundary in Turkey -Comparison with subduction volcanism in Japan-" DELP News. 24. 11-15 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tadahide Ui: "Volcanoes in Turkey" Kazan Dai 2 shuu. 34. 87-88 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Keisuke Nagao, Itsuro Kita, Jun-ichi Matsuda, Tuncay Ercan: "Turkiye deki Kuvaterner Yasli volkanik alanlarda asal gaz de karbon izotopik bilesimleri" Jeomorfoloji Dergisi. 17. 101-110 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Jun-ichi Matsuda, Kayo Matsubara, Haruaki Yajima, Koshi Yamamoto: "Anomalous Ne enrichment in obsidians and Darwin glass; Diffusion of noble gases in silica-rich glasses" Geochim. Cosmochim. Acta. 53. 3025-3033 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary

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Published: 1988-04-01   Modified: 2016-04-21  

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