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Photon-activation analysis of volcanic rocks from Northeast Japan Arc.

Research Project

Project/Area Number 63460048
Research Category

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

Allocation TypeSingle-year Grants
Research Field 地質学一般
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

YOSHIDA Takeyoshi  Tohoku University, College of General Education, Associate Professor, 教養部, 助教授 (80004505)

Co-Investigator(Kenkyū-buntansha) ISHIKAWA Ken-ichi  Tohoku University, College of General Education, Research Associate, 教養部, 助手 (20158744)
AOKI Ken-ichiro  Tohoku University, Faculty of Science, Professor, 理学部, 教授 (00004276)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥7,100,000 (Direct Cost: ¥7,100,000)
Fiscal Year 1989: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1988: ¥6,400,000 (Direct Cost: ¥6,400,000)
KeywordsPhoton-activation analysis / Volcanic rock / Northeast Japan Arc / Volcanic zone / Lateral variation / Incompatible trace element / Source mantle / Mantle heterogeneity / γ線自動計測システム / 島弧 / 海溝系 / 火山岩組成 / 帯状配列 / 組成の時間的変還 / 東北日本弧γ線自動計測システム / 起源物質
Research Abstract

The Northeast Japan Arc has been divided into four volcanic zones, Aoso-Osore, Sekiryo, Moriyoshi and Chokai, from the trench to back arc side. The lateral variation of the volcanic rocks from the four volcanic zones was investigated. In the Aoso-Osore zone, low-K calc-alkaline rocks with subordinate low-K tholeiites erupted. Medium-K calc-alkaline rocks are associated with, and often follow low-K tholeiites at the volcanoes of the Sekiryo zone. The Moriyoshi zone is characterized by medium-K calc-alkaline rocks with subordinate medium-K tholeiites. The Chokai zone contains medium-K calc-alkaline rocks on the eastern side, and high-K calc-alkaline rocks on the western side. These are associated with high-alumina basalts and alkali basalts, respectively.
Instrumental photon-activation analysis has been used to determine 13 trace elements: Sc, Cr, Co, Ni, Zn, Rb, Cs, Sr, Ba, Ce, Y, Nb and Zr in these volcanics. Quaternary volcanic rocks from the Northeast Japan arc are enriched in K, Ba, Rb and Sr and depleted in Nb, Ti and Zr relative to Y and Ce. These rocks, also, show a distinct lateral variation of trace elemental abundances. Across the segment in Northeast Honshu, P_2O_5, Rb, Ce, Sr, Ba and Cs contents increase gradually with distance from the volcanic front; K_2O, Y, Zr and Nb also increase by smaller enrichment factors than the former elements. on the basis of the abundance of incompatible trace elements of each volcanic center, the degree of partial melting and the abundances of the incompatible elements of the source mantle have been calculated. The back-calculated source compositions show chemical heterogeneity within the mantle wedge.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (48 results)

All Other

All Publications (48 results)

  • [Publications] 中川光弘・霧島洋・吉田武義: "東北日本弧、第四紀玄武岩組成の水平変化" 岩鉱. 83. 9-25 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 大貫仁・吉田武義・花松俊一: "みかぶ緑色世帯の岩石化学 ー超苦鉄質岩類と苦鉄質火山岩との成因的関係ー" 月刊「地球」. 10. 398-401 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 吉田武義・佐藤博明・青木謙一郎: "日本海、久六島西方海底火山噴出物の微量元素組成" 核理研報告. 21. 256-267 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 吉田武義・青木謙一郎: "北海道、渡島大島火山噴出物の微量元素組成" 核理研報告. 21. 268-280 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 吉田武義・酒寄淳史・青木謙一郎: "東北本州弧第四紀火山岩組成の広域的変化" 核理研報告. 21. 281-300 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 吉田武義・青木謙一郎: "東北本州弧第四紀火山岩類へのプロセス判定図の適用" 核理研報告. 21. 301-318 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Aoki,K.,Yoshida,T.Zhe,J.Y.: "Petrology and geochemistry of pleistocene dacitic and rhyolitic pyroclastic flows from southern part of northeast Honshu,Japan" Jour.Min.Pet.Econ.Geol.84. 1-14 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 青木謙一郎・吉田武義: "上部マントルかんらん岩中のクロムスピネルの主成分と微量成分について" 岩鉱特別号. 4. 163-170 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 吉田武義: "東北本州弧第四紀火山岩類の研究" 地質学論集. 32. 353-384 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 大口健志・吉田武義・大上和良: "東北本州弧における新生代火山活動域の変遷" 地質学論集. 32. 431-455 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 蟹沢聰史・吉田武義・石川賢一・青木謙一郎: "北上山地、古第三紀珪長質火山岩類の地球化学的研究" 核理研報告. 22. 76-85 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 中村洋一・宇賀神俊彦・石川賢一・吉田武義・青木謙一郎: "足尾山地東縁地域に分布する中新世玄武岩類の微量元素組成" 核理研報告. 22. 86-103 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 氏家治・吉田武義・青木謙一郎: "九州南方、大隅諸島近辺の火山岩類の光量子放射化分析" 核理研報告. 22. 104-116 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kanisawa,S.Yoshida,T.: "Genesis of the extremely low-K tonalites from the island arc volcanism" Bull,Volcanol,. 51. 346-354 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kanisawa,S.Yoshida,T.: "Trace element characteristics of the Cretaceous plutonic rocks in the kitakami Mountains,Mortheast Japan" DELP Pubication. 28. 34-38 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 福留高明・吉田武義・長尾敬介・板谷徹丸・田上誠二: "日本海久六島の鮮新世アルカリ玄武岩" 岩鉱. 85. 10-18 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Nakagawa, M., Shimotori, H. and Yoshida, T.: "Across-arc compositional variation of the Quaternary basaltic rocks from the Northeast Japan arc. (in Japanese with English abstract)" Jour. Min. Pet. Econ. Geol. 83, 9-25 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Onuki, H., Yoshida, T., Hanamatsu, S.: "Geochemistry of the Mikabu green stone belts - Genetical relationship between the ultramafics and mafic volcanics -. (in Japanese)" Chikyu (Earth) 10, 398-401 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Yoshida, T., Sato, H. and Aoki, K.: "Trace element abundances of the rocks from Kyuroku-jima Seiho submarine volcano, Japan Sea. (in Japanese)" Res. Rep. Lab. Nucl. Sci. Tohoku Univ., 21, 256-267 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Yoshida, T. and Aoki, K.: "Trace element abundances of the rocks from Oshima-O-shima volcano, Hokkaido. (in Japanese)" Res. Rep. Lab. Nucl. Sci. Tohoku Univ., 21, 268-280 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Yoshida, T., Sakayori, A. and Aoki, K.: "Regional variation of volcanic rock compositions in the Northeast Honshu arc. (in Japanese)" Res. Rep. Lab. Nucl. Sci. Tohoku Univ., 21, 281-300 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Yoshida, T. and Aoki, K.: "Estimation of source materials for the volcanic rocks from the Northeast Honshu arc - application of "Process identification diagram". (in Japanese)" Res. Rep. Lab. Nucl. Sci. Tohoku Univ., 21, 301-318 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Aoki, K., Yoshida, T. and Zhe, J.Y.: "Petrology and geo-chemistry of Pleiocene dacitic and rhyolitic pyroclastic flows from southern part of northeast Honshu, Japan." Jour. Min. Pet. Econ. Geol. 84, 1-14 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Aoki, K. and Yoshida, T.: "Major- and trace-element abundances of chromian spinels in peridotite xenoliths derived from upper mantle. (in Japanese with English abstract)" Jour. Min. Pet. Econ. Geol. Special Vol. 4, 163-170 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Yoshida, T.: "Study of the Quaternary volcanic rocks in the Northeast Honshu Arc, Japan. (in Japanese with English abstract)" Memoirs of Geological Society of Japan, No. 32, 353-384 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Ohguchi, T., Yoshida, T. and Okami, K.: "Historical change of the Neogene and Quaternary volcanic field in the Northeast Honshu Arc, Japan. (in Japanese with English abstract)" Memoirs of Geological Society of Japan, No. 32, 431-455 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kanisawa, S., Yoshida, T., Ishikawa, K. and Aoki, K.: "Geochemistry of the Paleogene felsic volcanic rocks, Kitakami Mountains. (in Japanese)" Res. Rep. Lab. Nucl. Sci. Tohoku Univ., 22, 76-85 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Nakamura, Y., Ugajin, T., Ishikawa, K., Yoshida, T. and Aoki, K.: "Trace element abundances of the Miocene basaltic rocks from the eastern Asio mountains. (in Japanese)" Res. Rep. Lab. Nucl. Sci. Tohoku Univ., 22, 86-103 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Ujike, O., Yoshida, T. and Aoki, K.: "Photon-activation analyses of the volcanic rocks from the Osumi islands, south of Kyushu. (in Japanese)" Res. Rep. Lab. Nucl. Sci. Tohoku Univ., 22, 104-116 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kanisawa, S. and Yoshida, T.: "Genesis of the extremely low-K $tonalities from the island arc volcanism." Bull. Volcanol. 51, 346-354 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Kanisawa, S. and Yoshida, T.: "Trace element characteristics of the Cretaceous plutonic rocks in the Kitakami Mountains, Northeast Japan." DELP Publication 28, 34-38 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Fukudome, T., Yoshida, T., Nagao, K., Itaya, T. and Tanoue, S.: "Pliocene alkali basalt from Kyuroku-shima Island, northeast of Japan Sea. (in Japanese with English abstract)" Jour. Min. Pet. Econ. Geol. 85, 10-18 (1990).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Aoki,K.,Yoshida,T,Zhe,J.Y.: "Petrology and geochemistry of Pleistocene dacitic and rhyolitic pyroclastic flows from southern part of northeast Honshu,Japan" Jour.Min.Pet.Econ.Geol.84. 1-14 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 青木謙一郎,吉田武義: "上部マントルかんらん岩中のクロムスピネルの主成分と微量成分について" 岩鉱特別号. 4. 163-170 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 吉田武義: "東北本州弧第四紀火山岩類の研究" 地質学論集. 32. 353-384 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 大口健志,吉田武義,大上和良: "東北本州弧における新生代火山活動域の変遷" 地質学論集. 32. 431-455 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 蟹沢聰史,吉田武義,石川賢一,青木謙一郎: "北上山地、古第三紀珪長質火山岩類の地球化学的研究" 核理研報告. 22. 76-85 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 中村洋一,宇賀神俊彦,石川賢一,吉田武義,青木謙一郎: "足尾山地東縁地域に分布する中新世玄武岩類の微量元素組成" 核理研報告. 22. 86-103 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 氏家治,吉田武義,青木謙一郎: "九州南方、大隅諸島近辺の火山岩類の光量子放射化分析" 核理研報告. 22. 104-116 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Kanisawa,S.,Yoshida,T.: "Genesis of the extremely low-K tonalites from the island arc volcanism" Bull.Volcanol.51. 346-354 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Kanisawa,S.,Yoshida,T.: "Trace element characteristics of the Cretaceous plutonic rocks in the Kitakami Mountains,Northeast Japan" DELP Publication. 28. 34-38 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 福留高明,吉田武義,長尾敬介,板谷徹丸,田上誠二: "日本海久六島の鮮新世アルカリ玄武岩" 岩鉱. 85. 10-18 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 中川光弘: 岩鉱. 83. 9-25 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 吉田武義: 東北大学核理研研究報告. 21. 256-267 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 吉田武義: 東北大学核理研研究報告. 21. 268-280 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 吉田武義: 東北大学核理研研究報告. 21. 281-300 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 吉田武義: 東北大学核理研研究報告. 21. 301-318 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Satoshi,Kanisawa: J.Volcanol. (1989)

    • Related Report
      1988 Annual Research Report

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

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