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Reconstruction of annual-scale paleoclimatic changes during the mid-Cretaceous evidenced from Mongolian lacustrine record

Research Project

Project/Area Number 25870309
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Geology
Stratigraphy/Paleontology
Research InstitutionNagoya University

Principal Investigator

Hasegawa Hitoshi  名古屋大学, 博物館, 特任准教授 (80551605)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords白亜紀 / 温室期 / 湖成層 / 年縞 / 年スケール / 地球軌道要素 / 気候変動 / 太陽活動 / 十年規模変動 / 白亜紀中期“超温室期” / モンゴル / 大気循環
Outline of Final Research Achievements

In order to reconstruct annual- to orbital-scale paleoclimatic changes, I examined Aptian lacustrine record (Shinekhudag Formation) in southeast Mongolia. Based on the radiometric age dating and detail chronostratigraphic study, the Shinekhudag Formation is considered to be deposited between ca. 122-119 Ma. Based on the analysis of major and minor elemental compositions, three paleoclimatic proxies (precipitation, weathering, lake bottom redox state) have beed identified. Changes of each paleoclimatic proxies are thought to be reflected to the differenct orbital parameters. The micrometer-scale laminations, consisting of couplets of algal organic matter and detrital minerals, are most likely varves, reflecting seasonal cyclicity. Thus, the Shinekhudag Formation are thought to record the annual- to orbital-scale climatic change in mid-latitude Asia during the Aptian time.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (14 results)

All 2016 2015 2014 2013 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results) Book (3 results) Remarks (2 results)

  • [Int'l Joint Research] モンゴル科学アカデミー古生物地質研究所/モンゴル科学技術大学/モンゴル国立大学(モンゴル)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] ハノーファー大学地質教室(ドイツ)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Confirmation of a Middle Jurassic age for the Eedemt Formation in Dundgobi Province, southeast Mongolia: constraints from the discovery of new spinicaudatans (clam shrimps)2014

    • Author(s)
      Gang Li, Hisao Ando, Hitoshi Hasegawa, Masanobu Yamamoto, Takashi Hasegawa, Tohru Ohta, Noriko Hasebe, and Niiden Ichinnorov
    • Journal Title

      Alcheringa:An Australasian Journal of Palaeontology

      Volume: 38-3 Issue: 3 Pages: 305-316

    • DOI

      10.1080/03115518.2014.870834

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Climate and atmospheric circulation system in the Cretaceous “greenhouse” world: insights from Mongolian geological records2013

    • Author(s)
      Hasegawa, H., Ichinnorov, N.
    • Journal Title

      Haiguulchin

      Volume: v.48 Pages: 226-231

    • Related Report
      2013 Research-status Report
  • [Presentation] Millenial- to orbital-scale paleoclimatic changes in the mid-Cretaceous from Mongolian lacustrine records2016

    • Author(s)
      Hasegawa H., Yamamoto K., Mimura K., Ando H., Ichinnorov N.
    • Organizer
      Goldschmidt 2016
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2016-06-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Millenial- to orbital-scale paleoclimatic changes in the mid-Cretaceous from Mongolian laモンゴル湖成層から読み解く白亜紀中期“超温室期”の十年スケール~地球軌道要素スケールの気候システム変動custrine records2016

    • Author(s)
      長谷川精, 山本鋼志, 勝田長貴, 三村耕一, 安藤寿男, 太田亨, 山本正伸, 長谷川卓, 長谷部徳子, Ichinnorov N., Heimhofer U., Enerel G., Oyunjargal G., 西本昌司, 山口浩一, 鈴木徳行, 入野智久, 阿部文雄, 村木綏
    • Organizer
      日本地球惑星科学連合 連合大会2016年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2016-05-24
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 湖成オイルシェールから見る白亜紀および始新世の陸域気候2016

    • Author(s)
      長谷川精
    • Organizer
      シンポジウム「新たな炭化水素資源と革新的地化学探査技術」
    • Place of Presentation
      北海道大学
    • Year and Date
      2016-03-17
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Climate and atmospheric circulation systems in the Cretaceous “greenhouse” world: insights from eolian dune and lacustrine records2015

    • Author(s)
      Hasegawa H.
    • Organizer
      Conference Climates of the past, lessons for the future
    • Place of Presentation
      Monte Verita, Ascona, Swiss
    • Year and Date
      2015-07-07
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] モンゴルの年縞湖成層のラミナレベル解析: 白亜紀中期“超温室期”の数年~数十年スケール気候変動の解明に向けて2014

    • Author(s)
      長谷川精,安藤寿男,太田亨,長谷川卓,山本正伸,長谷部徳子,村田崇之,新谷広紀,Gang Li,Niiden Ichinnorov,西本昌司,山口浩一,岩間由希
    • Organizer
      日本堆積学会2014年山口大会
    • Place of Presentation
      山口大学(山口)
    • Related Report
      2013 Research-status Report
  • [Book] 「1.2. 地球史を通じた砂漠の分布と環境の変遷」,砂漠誌: (国立科学博物館叢書) (縄田浩志・篠田謙一編)2014

    • Author(s)
      長谷川精(共同執筆)
    • Total Pages
      454
    • Publisher
      東海大学出版会
    • Related Report
      2013 Research-status Report
  • [Book] 「白亜紀“温室期”の気候 ~モンゴルの地層研究からわかってきたこと~」,名古屋市科学館特別展「発掘! モンゴル大恐竜展」2014

    • Author(s)
      長谷川精(共同執筆)
    • Total Pages
      180
    • Publisher
      読売新聞社
    • Related Report
      2013 Research-status Report
  • [Book] 中生代の大陸配置と古気候,大阪市立自然史博物館特別展「恐竜戦国時代の覇者!トリケラトプス」2014

    • Author(s)
      長谷川精(共同執筆)
    • Total Pages
      191
    • Publisher
      読売新聞社
    • Related Report
      2013 Research-status Report
  • [Remarks] 名古屋大学博物館website教員プロフィール

    • URL

      http://www.num.nagoya-u.ac.jp/outline/staff/hasegawa/index.html

    • Related Report
      2015 Annual Research Report 2014 Research-status Report
  • [Remarks] 名古屋大学博物館website

    • URL

      http://www.num.nagoya-u.ac.jp/outline/staff/hasegawa/index.html

    • Related Report
      2013 Research-status Report

URL: 

Published: 2014-07-25   Modified: 2019-07-29  

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