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Anatomy of the Early to Middle Miocene SW Japan Arc: Opening up the frontier of the sedimentology and palaeoecology in the active plate margin

Research Project

Project/Area Number 16K05591
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionKochi University

Principal Investigator

Nara Masakazu  高知大学, 教育研究部自然科学系理工学部門, 教授 (90314947)

Project Period (FY) 2016-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords古生態 / 古環境 / 古生物 / 生痕化石 / 堆積地質学 / 生痕学 / 古生態学 / 古生物学 / 古環境学 / 堆積学 / 層位・古生物学 / 地質学 / 堆積 / 津波
Outline of Final Research Achievements

The most important finding is that the sediment mass-production and over-sedimentation that affected the Miocene shallow marine benthic communities in the Misaki Group was probably caused by the active extension tectonics, forced subduction of the young and hot Shikoku Basin, and regional uplifting in and around the Kuma Basin by volcanism that later deposited the overlying Ishizuchi Group. Along with this, I, with the help of other workers, reported several additional things, such as a very thickly bedded sandy tsunamiite probably formed by powerful tsunami backwash in the Tanabe Group, probable tidal flat and estuarine deposits in the Misaki Group, and new ichnospecies characteristically found in the tidal flat deposits of the SW Japan Miocene strata. Moreover, based on the international joint research, co-authors and I described giant fossil burrows belonging to a new ichnogenus and ichnospecies in the Miocene of Taiwan and interpreted them as a dwelling structure of the eunicids.

Academic Significance and Societal Importance of the Research Achievements

この研究は,従来,その一般的変動速度の小ささからほとんど考慮されてこなかった固体地球の変動が,日本海拡大の様に急速な場合には十分に生態系に影響を与えることを示した画期的なものである.その成果は,地球温暖化をはじめとした諸問題を抱える地球システムの今後を考える上で小さくない影響をもたらすだろう.また,主な対象の一つである生痕化石は,地層群の堆積環境解析に活用可能であり,ボーリングコアの堆積環境復元や炭化水素ポテンシャルの判定を通じて,資源地質学的にも有用である.さらに,津波堆積相モデルの確立は津波防災にも寄与するものとなろう.本研究は,こうしたさまざまな側面から社会に大きく貢献するものである.

Report

(8 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (60 results)

All 2023 2022 2021 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (13 results) Journal Article (13 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 11 results,  Open Access: 7 results,  Acknowledgement Compliant: 1 results) Presentation (32 results) (of which Int'l Joint Research: 7 results,  Invited: 1 results) Book (2 results)

  • [Int'l Joint Research] 國立台湾大学/Academia Sinica(その他の国・地域)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Simon Fraser University(カナダ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Granada(スペイン)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Stockholm University/University of Gothenburg(スウェーデン)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] 国立台湾大学(その他の国・地域)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Simon Fraser University(カナダ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Suleyman Demirel University(トルコ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Aarhus(デンマーク)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] 国立台湾大学(その他の国・地域)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Simon Fraser University(カナダ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] 国立台湾大学(台湾)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Basel(スイス)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] 国立台湾大学(台湾)

    • Related Report
      2016 Research-status Report
  • [Journal Article] 特別講演,日本海拡大期の海成層から地震・津波堆積物を探して2023

    • Author(s)
      今井 悟・奈良正和
    • Journal Title

      島根県地学会誌

      Volume: 38 Pages: 5-9

    • Related Report
      2022 Annual Research Report
  • [Journal Article] The Eocene Hiwadatoge Formation, SW Japan: Constraints on the timing of the denudation of the Sambagawa metamorphic rocks2022

    • Author(s)
      楠橋 直・安藤友一・谷 健一郎・松原尚志・栗田裕司・奈良正和・山路 敦
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 128 Issue: 1 Pages: 411-426

    • DOI

      10.5575/geosoc.2022.0038

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2022-12-29
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Very thickly bedded event deposit in the lower to middle Miocene Shirahama Formation, southwest Japan2022

    • Author(s)
      Imai Satoru, Nara Masakazu
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 128 Issue: 1 Pages: 129-130

    • DOI

      10.5575/geosoc.2022.0011

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2022-06-23
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Coastal progradation associated with sea-level oscillations in the later phase of the Last Interglacial period, central Japan2022

    • Author(s)
      Okazaki Hiroko, Nara Masakazu, Nakazato Hiroomi, Furusawa Akira, Ito Kazumi, Tamura Toru
    • Journal Title

      Quaternary Science Reviews

      Volume: 285 Pages: 107507-107507

    • DOI

      10.1016/j.quascirev.2022.107507

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 高知市追手筋地下の完新統上部貝化石層とその放射性炭素年代2022

    • Author(s)
      近藤康生・中西利典・菊池直樹・島内朝康・奈良正和
    • Journal Title

      高知大学理工学部紀要

      Volume: 5 Pages: 1-15

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Diversity of phosphagen kinases in annelids: The first sequence report for a putative opheline kinase2022

    • Author(s)
      Yano Daichi、Uda Kouji、Nara Masakazu、Suzuki Tomohiko
    • Journal Title

      Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology

      Volume: 257 Pages: 110662-110662

    • DOI

      10.1016/j.cbpb.2021.110662

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The 20-million-year old lair of an ambush-predatory worm preserved in northeast Taiwan2021

    • Author(s)
      Pan Yu-Yen、Nara Masakazu、Loewemark Ludvig、Miguez-Salas Olmo、Gunnarson Bjorn、Iizuka Yoshiyuki、Chen Tzu-Tung、Dashtgard Shahin E.
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1-10

    • DOI

      10.1038/s41598-020-79311-0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Scolicia shirahamensis isp. nov.: a triple-corded scolicia and its ichnological implications2020

    • Author(s)
      Nara Masakazu、Seno’o Misako、Yamaoka Yuta
    • Journal Title

      Ichnos

      Volume: 27 Issue: 3 Pages: 300-306

    • DOI

      10.1080/10420940.2020.1744580

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Bowl-shaped structures in a Pleistocene clastic carbonate wedge on the Island of Rhodes, Greece2020

    • Author(s)
      Nielsen Jan Kresten、Nara Masakazu、Jacobsen Aase Roland
    • Journal Title

      Ichnos

      Volume: 27 Issue: 3 Pages: 326-333

    • DOI

      10.1080/10420940.2020.1744582

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A “coarse-grained” metabasite body newly found in the Sambagawa metamorphic rocks in Kumakogen Town, Ehime Prefecture, SW Japan2019

    • Author(s)
      仲田光輝・楠橋 直・齊藤 哲・大藤弘明・奈良正和
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 125 Issue: 6 Pages: 447-452

    • DOI

      10.5575/geosoc.2019.0010

    • NAID

      130007706719

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2019-06-15
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Palaeoecology of Macaronichnus segregatis degiberti: Reconstructing the infaunal lives of the travisiid polychaetes2019

    • Author(s)
      Nara, M., Seike, K.
    • Journal Title

      Palaeogeography, Palaeoclimatology, Palaeoecology

      Volume: 516 Pages: 284-294

    • DOI

      10.1016/j.palaeo.2018.12.011

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Kuma and Misaki Groups: Geological and palaeoenvironmental records preserved in the Miocene forearc deposits during the opening of the Sea of Japan2017

    • Author(s)
      奈良正和・楠橋 直・岡本 隆・今井 悟
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 123 Issue: 7 Pages: 471-489

    • DOI

      10.5575/geosoc.2017.0035

    • NAID

      130005893388

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2017-07-15
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Palaeoecological effects of back-arc spreading on Miocene benthic communities, SW Japan Arc2016

    • Author(s)
      Nara, M., Aikou, K.
    • Journal Title

      Palaeogeography, Palaeoclimatology, Palaeoecology

      Volume: 453 Pages: 80-92

    • DOI

      10.1016/j.palaeo.2016.03.027

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Integrating ichnology, palaeoecology, and sedimentology for reconstructing dynamic palaeoenvironments2022

    • Author(s)
      Nara Masakazu
    • Organizer
      The 6th International Palaeontological Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Geological record of a mega-tsunami in the Miocene Tanabe Group, central Japan2022

    • Author(s)
      Fujino Shigehiro, Nara Masakazu, Imai Satoru, Ishizuka Sota
    • Organizer
      The 21st International Sedimentological Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 現世波浪卓越型砂浜海岸にみられるPsilonichnus類の生痕学とその堆積地質学的意義2022

    • Author(s)
      吉本大志・奈良正和
    • Organizer
      第22回日本地質学会四国支部総会・講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 下部中新統師崎層群の深海動 物化石発掘調査2022

    • Author(s)
      大路樹生・吉田英一・前田晴良・森 勇一・蜂 矢喜一郎・水野吉昭・田中源吾・田中里志・山田敏 弘・奈良正和・内田臣一・星 博幸・氏原 温・齊藤 毅・川瀬基弘・子安和弘・加藤 萌・村宮悠介・山岡 雅俊・安藤佑介・一田昌宏・宇佐美徹・林 常喜・牧 口貴久・市村駿汰
    • Organizer
      日本古生物学会第171回例会
    • Related Report
      2021 Research-status Report
  • [Presentation] 中新統竜串層に産する2種のOphiomorpha類の古生態学2021

    • Author(s)
      友直由衣・今井 悟・奈良正和
    • Organizer
      日本古生物学会第170回例会
    • Related Report
      2020 Research-status Report
  • [Presentation] 竜串海岸に見られる球状コンクリーションの成因究明 ~火星の球状物体との類似性~2021

    • Author(s)
      浅井沙紀,長谷川 精,吉田英一,池原 実,勝田長貴,奈良正和,友直由衣,今井 悟
    • Organizer
      高知大学海洋コア総合研究センター共同利用・共同研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 竜串層に含まれる球状鉄コンクリーションの成因究明 ~火星の球状物体の成因究明に向けて~2020

    • Author(s)
      浅井沙紀,長谷川 精,吉田英一,奈良正和,友直由衣,池原 実,今井 悟
    • Organizer
      地球環境史学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 中新統竜串層に産する生痕化石 Ophiomorpha 形成者の古生態学2020

    • Author(s)
      友直由衣・今井 悟・奈良正和
    • Organizer
      第20 回日本地質学会四国支部総会・講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 竜串層に含まれる球状鉄コンクリーションの成因 ~火星の球状ノジュールとの類似性~2020

    • Author(s)
      浅井沙紀,長谷川 精,吉田英一,奈良正和,友直由衣,池原 実,今井 悟
    • Organizer
      第20 回日本地質学会四国支部総会・講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 西南日本弧中新統に産する生痕化石Dactyloidites ottoiの形成環境とその古生態学的意義2020

    • Author(s)
      奈良正和
    • Organizer
      日本古生物学会第169回例会
    • Related Report
      2019 Research-status Report
  • [Presentation] Tectonically controlled ichnofabrics in the early to middle Miocene fore-arc basin fills of the Southwest Japan Arc2019

    • Author(s)
      Nara, Masakazu
    • Organizer
      XV International Ichnofabric Workshop
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 前期ー中期中新世西南日本弧前孤域の古環境と古生態系2019

    • Author(s)
      奈良正和
    • Organizer
      日本地質学会第126年学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 中新統竜串層の堆積環境と生痕化石Ophiomorpha類の古生態学2019

    • Author(s)
      友直由衣・奈良正和
    • Organizer
      第19回日本地質学会四国支部総会・講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Tectonic control on ichnofabrics: Examples from the early to middle Miocene fore-arc basin fills of SW Japan2018

    • Author(s)
      Nara, M.
    • Organizer
      20th International Sedimentological Congress
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Investigation of an enigmatic trace fossil from the Miocene Taliao Formation, Taiwan2018

    • Author(s)
      Pan, Y.-Y., Loewemark, L., Nara, M.
    • Organizer
      The European Geosciences Union General Assembly 2018 Vienna
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 千葉県屏風ヶ浦の更新統香取層基底に見られる複合シーケンス境界2018

    • Author(s)
      岡崎浩子・奈良正和・中里裕臣・田村 亨・伊藤一充
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 中新統竜串層におけるOphiomorpha類の産出環境と形態2018

    • Author(s)
      友直由衣・奈良正和
    • Organizer
      日本地質学会第125年学術大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 背弧拡大期の西南日本前孤域テクトニクスと古生態系2018

    • Author(s)
      奈良正和
    • Organizer
      第18回日本地質学会四国支部総会・講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 生痕属Ophiomorphaの形態と堆積環境:中新統三崎層群竜串層の例2018

    • Author(s)
      友直由衣・奈良正和
    • Organizer
      第18回日本地質学会四国支部総会・講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 白亜系犬吠埼層産標本群の観察に基づく生痕化石Phoebicnhus trochoidesの新解釈2018

    • Author(s)
      川口昌人・奈良正和・清家弘治
    • Organizer
      日本古生物学会第167回例会
    • Related Report
      2017 Research-status Report
  • [Presentation] 前期-中期中新世西南日本弧の古生態学:三崎層群堆積盆の特異性2018

    • Author(s)
      奈良正和
    • Organizer
      日本古生物学会第167回例会
    • Related Report
      2017 Research-status Report
  • [Presentation] Ichnology and palaeoecology of Macaronichnus segregatis degiberti2017

    • Author(s)
      Nara, M.
    • Organizer
      14th International Ichnofabric Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analyzing the peculiar unknown trace fossil in the Taliao Formation, Taiwan2017

    • Author(s)
      Pan, Y.-Y., Loewemark, L., and Nara, M.
    • Organizer
      14th International Ichnofabric Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高知県土佐清水市爪白の中新世潮汐低地堆積物に見られる生痕化石群集2017

    • Author(s)
      奈良正和・矢島穂高
    • Organizer
      日本古生物学会第2017年年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 日本海拡大と西南日本弧の古生態系:中新統三崎層群における海底生態系の特異性とその要因2017

    • Author(s)
      奈良正和
    • Organizer
      日本地質学会第124年学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 愛媛県上浮穴郡久万高原町の三波川変成岩類中に見られる変斑れい岩体2017

    • Author(s)
      仲田光輝・楠橋 直・奈良正和
    • Organizer
      日本地質学会第124年学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 愛媛県中部の始新統ひわだ峠層の層序2017

    • Author(s)
      楠橋 直・安藤友一・松原尚志・奈良正和・栗田裕司・山路 敦
    • Organizer
      日本地質学会第124年学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 愛媛県西条市加茂川河口干潟の堆積相とその動態2016

    • Author(s)
      秋山紘胤・奈良正和(講演者)
    • Organizer
      日本地質学会第123年学術大会
    • Place of Presentation
      日本大学,桜上水,東京
    • Related Report
      2016 Research-status Report
  • [Presentation] 千葉県屏風ヶ浦“香取層”から考える古東京湾のバリアーシステムの消長(予察)2016

    • Author(s)
      岡崎浩子・中里裕臣・奈良正和・田村 亨・伊藤一充
    • Organizer
      日本地質学会第123年学術大会
    • Place of Presentation
      日本大学,桜上水,東京
    • Related Report
      2016 Research-status Report
  • [Presentation] 千葉県屏風ヶ浦“香取層” に見られるMIS ステージ5a の海成堆積物2016

    • Author(s)
      岡崎浩子・中里裕臣・奈良正和・田村 亨・伊藤一充
    • Organizer
      日本第四紀学会2016年大会
    • Place of Presentation
      千葉大学,千葉市
    • Related Report
      2016 Research-status Report
  • [Presentation] 下部白亜系銚子層群犬吠埼層の生痕学2016

    • Author(s)
      川口昌人・奈良正和・清家弘治
    • Organizer
      第16回日本地質学会四国支部総会・講演会
    • Place of Presentation
      高知大学,高知市
    • Related Report
      2016 Research-status Report
  • [Presentation] 中新統三崎層群竜串層上部の堆積学と古生態学2016

    • Author(s)
      矢島穂高・奈良正和
    • Organizer
      第16回日本地質学会四国支部総会・講演会
    • Place of Presentation
      高知大学,高知市
    • Related Report
      2016 Research-status Report
  • [Book] 古生物学の百科事典2023

    • Author(s)
      西 弘嗣・生形貴男・奈良正和ほか84名
    • Total Pages
      790
    • Publisher
      丸善出版
    • ISBN
      9784621307588
    • Related Report
      2022 Annual Research Report
  • [Book] フィールドマニュアル 図説 堆積構造の世界2022

    • Author(s)
      伊藤 慎・池原 研・高野 修・奈良正和ほか46名
    • Total Pages
      210
    • Publisher
      朝倉書店
    • ISBN
      9784254162790
    • Related Report
      2022 Annual Research Report

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Published: 2016-04-21   Modified: 2024-01-30  

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