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1989 Fiscal Year Final Research Report Summary

Late Cenozoic Stratigraphy and Paleoenvironmental Change of the Coastal Area along the Sea of Japan

Research Project

Project/Area Number 62302019
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field Stratigraphy/Paleontology
Research InstitutionNiigata University

Principal Investigator

KOBAYASHI Iwao  Niigata University, Faculty of Sciences, Professor, 理学部, 教授 (70018266)

Co-Investigator(Kenkyū-buntansha) HOYANAGI Koichi  Shinshu University, Faculty of Sciences, Assistant, 理学部, 助手 (30202302)
NOMURA Ritsuo  Shimane University, Faculty of Education, Assistant Professor, 教育学部, 助教授 (30144687)
YAMAUCHI Seiki  Shimane University, Faculty of Sciences, Assistant Professor, 理学部, 助教授 (70032612)
TATEISHI Masaaki  Niigata University, Faculty of Sciences, Assistant Professor, 理学部, 助教授 (00126426)
FUJII Shoji  Toyama University, College of Liberal Arts, Professor, 教養部, 教授 (30019236)
Project Period (FY) 1987 – 1989
KeywordsTHE SEA OF JAPAN / STRATIGRAPHY / CORRELATION / NEOGENE / TERTIARY / PALEOENVIRONMENT / PALEOGEOGRAPHY / PALEOBIOGEOGRAPHY
Research Abstract

Late Cenozoic stratigraphy was examined in eight provinces along the borderland of the sea of Japan, namely northwest Hokkaido, southwest Hokkaido, Aomori, Akita-Yamagata, Niigata, Shinshu, Hokuriku and San-in provinces. Lithostratigraphic classification inclusive of biostratigraphy, tephrastratigaraphy and chronostratigraphy, was established in each province and Heagene carrelatiorl from Hokkaida to San-in were completed.
According to it, more than five sheets of Neogene paleogeographical maps of each province wore drawn at intervals of about half million to a million year. Moreover, in accordance with them six sheets of Neagene paleageographical map in the borderland of the sea of Japan were drawn.
Neagene marine environment in the palea-sea of Japan was studied from the viewpoint of fossil (diatom, foraminifera, radiolaria, molluscs), sedimentary and tectonic faces. Some of important results and problems are cited as follows.
The study an turbidits faces of sedimentary basin during mid … More dle Middle Miocene in northeast Japan was advanced. Some models an sedimentation of coarse materials and formation of submarine fan were proposed. Focus change of siliceous sediments, its sedimentary environment and the sedimentary ratio were discussed. Organic matters (kerogen) in mudstone is available for reconstruction of sedimentary environment. Geographical and stratigraphical distributions of fossils, such as foraminifera, malluscs and marine vertebrate assemblages were examined and their changes were discussed.
From the results, important marine events in the east marginal area of the sea of Japan are mentioned. During early Middle Miocene time, commencement of large transgression under tropical environment, nothing of tropical fauna and flora; During Middle Miocene commencement of upheaval of island arc, appearance of temperate assemblage, expansion and deeping of the sea of Japan, formation of deep sea environment like the recent sea of Japan; during Late Miocene time, appearance of land area, in cardillera of northeast Japan and marginal sea, establishment of temperate Pacific realm: During Mid-Pliocene time, occurrence of serious crtistal movement and southing of cool-temperate marine organisms. The relationship between the change of paleoenvironment and assemblages was made clear. Less

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Kobayashi,Iwao: "Outline of Neogene events of marine environment in Niigata and Sanーin sedimentary basins,Central and south east Japan" Proc,Intern,sym,PacificNeogene Continental and Mirine Events. 7-17 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 藤井昭二: "富山県婦負郡八尾町高熊産の軟体動物化石" 富山大学教養部紀要. 22. 1-13 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tateishi,Masaaki: "Sedimentary facied and tectonic of Cenozoic backーarc margin of central Japan" Paleont.Soc.Korea,Spec.iss.4. 21-29 (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 永美章: "丹後半島南西部の北但層群" 島根大学地質学研究報告. 8号. 73-82 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nomura,Ritsuo: "Middle Miocene foraminifera from the Matsue Formation,Shimane Prefecture" Trans.Proc.Paleont.Soc.Japan(in press).

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 保柳康一: "埋積と前進に伴うタ-ビダイトの岩相変化,ー中央北海道・中部中新統古丹別層ー" 地質学雑誌. 95. 509-525 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kobayashi, Iwao: "Outline of Neogene events of marine environment in Niigata and San-in sedimentary basins, Central and Southeast Japan." Proc.Intern.Sym.Pacific Neogene Continental and Marine Events. 7-17 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Fujii, Shoji: "On the molluscan fossils occurred from Takakuma, Yatsuo-machi, Neigum, Toyama Prefecture, central part of Japan." Bull., College of Liberal Arts, Toyama Univ.vol.22. 1-13 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tateishi, Masaaki: "Sedimentary faces and tectonic of Cenozoic back-arc margin of central Japan." Paleont.Soc.Korea, Spec. iss.vol.4. 1988 (21-29)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nagami, Akira: "The Hokutan Group in the southwestern area of the Tango Peninsula, Kyoto Prefecture, west Japan." Geol.Rept.Shimane Univ.no.8. 73-82 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nomura, Ritsuo: "Middle Miocene foraminifera from the Matsue Formation, Shimane Prefecture." Trans.Proc.Paleont.Soc. Japan, (in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hoyanagi, Koichi: "Progradational Iithofacies change of turbidite sequence, Middle Miocene Kotambetsu Formation, central Hokkaido, Japan." Jour.Geol.Soc.Japan. vol.95. 509-525 (1989)

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

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Published: 1993-03-26  

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