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1991 Fiscal Year Final Research Report Summary

Reconstruction of Inorganic Paleoenvironment From 20 Thousand Years Down to Recent Around Lake Nojiri, Nagano Prefecture

Research Project

Project/Area Number 02302028
Research Category

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

Allocation TypeSingle-year Grants
Research Field 地質学一般
Research InstitutionGunma University

Principal Investigator

NOMURA Satoshi  Gunma University Faculty of General Studies Professor, 教養部, 教授 (20008155)

Co-Investigator(Kenkyū-buntansha) SAKAI Jun'ichi  Shinshu Univeristy Faculty of Science Professor, 理学部, 教授 (30020663)
KUMAI Hisao  Osaka City Univeristy Faculty of Science Professor, 理学部, 教授 (40020680)
YOSHIKAWA Shusaku  Osaka City Univeristy Faculty of Science Assistant Professor, 理学部, 助教授 (30047394)
AKAHANE Sadayuki  Shinshu University Faculty of Education Assistant Professor, 教育学部, 助教授 (40089090)
Project Period (FY) 1990 – 1991
KeywordsUppermost Pleistocene / The coldest climate / Paleoenvironment / Eolian and hydrogenous beds / Nojiri-ko Excavation / Paleomagnetism of Upper Pleistocene
Research Abstract

(1) Several key beds of the uppermost Pliocene to Recent formations around Lake Nojiri were identified in both eolian and hydrogenous beds.
(2) Hills and lowland around Lake Nojiri show periodic arrangement. Along the boundary between hills and lowlands, there are three main faults, named Furumi, Arasehara and Rokugatu Faults respectively.
(3) Disturbances of uppermost Pleistocene beds were formed by the deposition of primary and secondary sedimentary materials.
(4) There is no reverse magnetized horizon from 20 thousand years down to Recent. But we can find the horizon in the beds of about 50 thousand years ago.
(5) The coldest climate is estimated within the uppermost part of the Upper Nojiri-ko Member III by pollen analysis.

  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 野村 哲,会田 信行: "野尻湖周辺地域、上部更新統の古地磁気" 月刊地球. 14. 43-49 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 赤羽 貞幸,近藤 洋一: "野尻湖周辺の最終氷期の堆積物" 月刊地球. 14. 7-15 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 川辺 孝幸: "野尻湖層の層厚分布からみた埋積史" 月刊地球. 14. 28-36 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 熊井 久雄: "野尻湖の湖水位変遷史" 月刊地球. 14. 15-21 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 那須 孝悌,野尻湖花粉グル-プ: "野尻湖周辺における最終氷期の古植生と古気候変遷" 月刊地球. 14. 50-55 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nomura, Satoshi and Aida, Nobuyuki: "Paleomagnetism of Upper Pleistocene formations around Lake Nojiri." Gekkan Chikyu. 14. 43-49 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Akahane, Sadayuki and Kondo, Yoichi: "Sediments of the Last Glacial Age around Lake Nojiri." Gekkan Chikyu. 14. 7-15 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Akahane, Sadayuki and Satoshi, Nomura: "Correlation of eolian beds with hydrogenous ones around Lake Nojiri." Gekkan Chikyu. 14. 37-42 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kawabe, takayuki: "History of sedimentation based on the thickness of Nojiri-ko Formation." Gekkan Chikyu. 14. 28-36 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshikawa, Shusaku and Inoue, Yoshio: "Tephrostratigraphy of the Takashima-oki boring core samples from Lake Biwa, central Japan." Earth Science. 45. 81-100 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kumai, Hisao: "Changes of the surface level of Lake Nojiri." Gekkan Chikyu. 14. 15-21 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nasu, Takayoshi and Palynological Research Group for Nojiri-ko Excavation: "Change of paleovegetation and paleoclimate during the Last Glacial Age around Lake Nojiri." Gekkan Chikyu. 14. 50-55 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Arita, yoko, Nakai, Nobuyuki, Nakamura, Toshio, Kamei, Tadao, Akiyama, Masahiko and Sawada, Ken: "Collagen extraction method from mammal fossils and radiocarbon dating with AMS technique." Bull. Nagoya Univ. Furukawa Museum. No. 6. 45-54 (1990)

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

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Published: 1993-03-16  

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