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PETROLOGICAL STUDY CONCERNING ORIGIN OF PELITIC SCHISTS IN THE SANBAGAWA BELT

Research Project

Project/Area Number 61540592
Research Category

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

Allocation TypeSingle-year Grants
Research Field 鉱物学(含岩石・鉱床学)
Research InstitutionHOKKAIDO UNIVERSITY (1987-1988)
Shimane University (1986)

Principal Investigator

WATANABE Teruo  FACULTY OF SCIENCE,HOKKAIDO UNIVERSITY, 理学部, 助教授 (40135900)

Co-Investigator(Kenkyū-buntansha) SUZUKI Niriyuki  FACULTY OF SCIENCE,SHIMANE UNIVERSITY, 理学部, 助手 (00144692)
IIZUMI Shigeru  FACULTY OF SCIENCE,SHIMANE UNIVERSITY, 理学部, 教授 (80032639)
Project Period (FY) 1986 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1988: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1987: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1986: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsAmalgamated terrane / Chert-laminite / Detrital mica / Nitrogen contents / Pelitic schists / Sheath fold / 融合テレン / 緑泥石 / CとN / テレン解析 / 炭質物 / C / N比 / 微量元素 / 希元素 / 砕屑性白雲母
Research Abstract

Diversity of pelitic schists of the chlorite zone in the Sanbagawa belt in terms of their petrochemical and mineralogical featured was examined in the Asemigawa area, central Shikoku and some other places. A1203/Si02,Na20/K20,Mn0/Ti02, which are diagnostic for estimation of sedimentary environments (Roser and Korsch, 1986: Sugisaki, 1984 etc), show wide variation togehter with Carbon and Nitrogen contents for the schists probably due to diversity of the environments and partly chemical modification during the metamorphism. Petrographical and mineralogical studies reveal occurrences of detrital minerals such as muscovite of intermediate-pressure type metamorphics origin, albitic plagioclase, quartz, carbonaceous materials and probably spinel(estimated from fuchsite) in some of pelitic schists.
Comprehensive examinations including geological and petrological studies suggest that original rocks was finely laminated(chert-laminite) and have derived from, at least, a few different basins such as a deep sea fan, where clastics of continent origin were commonly supplied, and a pelagic or hemi-plagic deeep sea basin where a large amount of mafic volcanicalastic rocks were commonly supplied and distal turbiditemay have been deposited.
Deformation regime related to sheath fold formation, which was firstly introduced by Faure (1983), extended to the chlorite zone in the Asemigawa area. Thus, the Sanbagawa belt is an amalgamated terrane composed of rocks originated a few different basins, and suffered simple shear deformation which sebsequently related to nappe formation.

Report

(4 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • 1986 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] 藤江信哉: 島根大学地質学研究報告. 7(号). 77-84 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 渡辺暉夫: 月刊「地球」. 10. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 渡辺暉夫: 地質学論集.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 渡辺暉夫: "日本の地質4 中部地方I(三波川帯・御荷〓帯・秩父帯)" 共立出版, 332 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] ICHIKAWA, HIROYUKIU: "QUANTITATIVE ANALYSIS OF SEVEN TRACE ELEMENTS IN SILICATE ROCKS USING FUSED DISK-SAMPLES BY X-RAY FLOURESCENCE METHOD(RH-TUBE)" GEOL. REPT. SHIMANE UNIV.6. 161-169 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] FUJIE, SHINYA: "SOME CARBONACEOUS ROCKS FOUND IN BEDDED CHERT OF THE JURASSIC KUGA GROUP. SOUTHWEST JAPAN(PRELIMINARY REPORT)" GEOL. REPT. SHIMANE UNIV.7. 77-84 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] WATANABE, TERUO: "HIGH-PRESSURE METAMORPHIC ROCKS IN NEW ZEALAND" MONTHLY CHIKYU. 10. 428-433 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MITSUNASHI, TAKASHI: METHODS IN GEOLOGICAL SURVEY. CHIGAKU DANDATAI KENNKYUKAI, 303 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] UEMURA, TAKESHI: REGINAL GEOLOGY OF JAPAN,PART 4,CHUBU I. KYURITSU SHUPPAN CO.,LTD, 332 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 藤江信哉: 島根大学地質学研究報告. 7(号). 77-84 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 渡辺暉夫: 月刊「地球」. 10. (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 渡辺暉夫: 地質学論集.

    • Related Report
      1988 Annual Research Report
  • [Publications] 渡辺暉夫: "日本の地質4中部地方I(三波川帯・御荷鉾帯・秩父帯)" 共立出版, 332 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] TERUO WATANABE,TAKAO TOKUOKA,& TAKANTO NAKA: TERRANE ACCRETION AND OKOGEMC BELT GEODYNAMIC SERIES VOL.19. 275-289 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 渡辺暉夫,岩崎正夫: 島根大学地質学研究報告. 6. 107-117 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] HIROAKI ISHIGA,EVAN C.LEIRCH,TAKAHIRO NAKA,TERUO WATANABE& MASAO IWASAKI: EARTH SCIENCE. VOL41. 297-302 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 渡辺 暉夫: MAGMA. NO81. 12-18 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 三梨昂,山内靖喜 編著,渡辺暉夫・〓郁夫: "地質調査法(広域変成帯" 地学団体研究会, 303(174-188 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] T.Watanabe;T.Tokuoka;T.Naka: American Geophy.Union,Monograph. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 市川博之,酒井利啓,渡辺暉夫,飯泉滋: 島根大学地質学研究報告. 6. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 渡辺暉夫,堀内宏哉: Newsletter of Sanbagawa Workshop No.1. 21-22 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 鈴木徳行,山本順三,村中英寿,高安克己,山内靖喜,大西郁夫,〓岡隆夫,島田〓郎,三梨昂: 島根大学地質学研究報告. 5. 19-34 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] N.Suzuki: AAPG.Bull.

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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