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Magnetostatigraphic study of Cretaceous sdiments in Japan, using reductive chemical demagnetization.

Research Project

Project/Area Number 20K04134
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 17040:Solid earth sciences-related
Research InstitutionDoshisha University (2021-2023)
Kumamoto University (2020)

Principal Investigator

Hideetoshi Shibuya  同志社大学, 研究開発推進機構, 嘱託研究員 (30170921)

Co-Investigator(Kenkyū-buntansha) 山本 裕二  高知大学, 教育研究部総合科学系複合領域科学部門, 教授 (00452699)
望月 伸竜  熊本大学, 大学院先端科学研究部(理), 准教授 (60422549)
穴井 千里  高知大学, 海洋コア総合研究センター, 客員助教 (00845779)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords古地磁気学 / 白亜紀 / 蝦夷層群 / 磁気層序 / 古地磁気層序 / 磁気層序学 / 還元化学消磁 / 白亜紀スーパークロン
Outline of Research at the Start

古い時代の堆積岩、特に固結度のあまり高くない岩石の古地磁気学測定はなかなか困難である。その上、我が国のような変動帯では、地層はなんらかの変質を被っており、古地磁気研究の成功率は高くない。本研究では、還元化学消磁とノジュール試料の利用という二つの新たな手法の具体的な手順を用いて、わが国の白亜系大陸斜面堆積物から初生磁化を抽出する新たな方法論の開発し、その有効性を吟味する。

Outline of Final Research Achievements

Paleomagnetic study in Yezo group has been performed, for establish the Santonian and Campanian boundary in the Haboro formation in Tomamae area in the western Hokkaido. The challenge is to find the effective demagnetization procedure in the sediments and/or the calcareous nodule, in the formation. We tried two methods, the reductive chemical demagnetization, and combination of the thermal+af demagnetization. The former is found not to be effective, because of the penetration of etchant is too slow. The later technique seems useful for several samples with careful selection of the thermal demagnetization temperature and clean af demagnetizer.

Academic Significance and Societal Importance of the Research Achievements

近年、地質時代区分の境界として古地磁気逆転表を用いられることが多い。Chibanian は顕著な一例であるが、白亜紀の Santonian-Campanian 境界も、白亜紀スーパクロンの上限を用いて定義されるようになってきた。わが国と欧米の白亜紀対比は古生物相の違いから難しいところがあるのだが、古地磁気層序が確定すれば、一気に進むものと思われ、白亜紀のグローバルな気候解析に資することを期待している。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (26 results)

All 2024 2023 2022 2021 2020

All Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (15 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Temporal change in rock-magnetic properties of volcanic ashes ejected during a 1-year eruption event: a case study on the Aso Nakadake 2019?2020 eruption2023

    • Author(s)
      Anai Chisato、Ohkura Takahiro、Yoshikawa Shin、Mochizuki Nobutatsu
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 24-24

    • DOI

      10.1186/s40623-023-01783-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Paleomagnetic constraint of the age and duration of the Taupo Eruption, New Zealand2023

    • Author(s)
      Hasegawa Takeshi、Greve Annika、Gravley Darren M.、Kusu Chie、Kaneda Yasuaki、Shibata Shohei、Okada Makoto、K?sik Szabolcs、Mochizuki Nobutatsu、Turner Gillian
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 1-17

    • DOI

      10.1186/s40623-023-01779-7

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Eocene relative paleointensity of the geomagnetic field from Integrated Ocean Drilling Program Site U1403 and U1408 sediments in the northwest Atlantic2022

    • Author(s)
      Yamamoto Yuhji、Fukami Hiroto、Lippert Peter C.
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 584 Pages: 117518-117518

    • DOI

      10.1016/j.epsl.2022.117518

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] テフラを利用した相対古地磁気強度変動の絶対値較正2022

    • Author(s)
      望月伸竜, 渋谷秀敏
    • Journal Title

      月刊地球 44(6) 2022年6月

      Volume: 44 Pages: 295-300

    • Related Report
      2022 Research-status Report
  • [Journal Article] An event study on broadband electric field noises and electron distributions in the lunar wake boundary2022

    • Author(s)
      Nishino Masaki N.、Kasahara Yoshiya、Harada Yuki、Saito Yoshifumi、Tsunakawa Hideo、Kumamoto Atsushi、Yokota Shoichiro、Takahashi Futoshi、Matsushima Masaki、Shibuya Hidetoshi、Shimizu Hisayoshi、Miyashita Yukinaga、Goto Yoshitaka、Ono Takayuki
    • Journal Title

      Earth, Planets and Space

      Volume: 74 Issue: 1 Pages: 9-9

    • DOI

      10.1186/s40623-021-01566-2

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reappraisal Eruptive Age and Classification of Holocene Volcanic Products around Nakadake Crater, Aso Volcano Using Paleomagnetic and Rock Magnetic Methods2021

    • Author(s)
      穴井 千里、宮縁 育夫、宇津木 充、吉川 慎、望月 伸竜、渋谷 秀敏、大倉 敬宏
    • Journal Title

      BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN

      Volume: 66 Issue: 3 Pages: 171-186

    • DOI

      10.18940/kazan.66.3_171

    • NAID

      130008112021

    • ISSN
      0453-4360, 2189-7182
    • Year and Date
      2021-09-30
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Eruption Styles and Processes of the 7.6ka Caldera-forming Eruption of Mashu Volcano, Eastern Hokkaido, Japan: Reconstruction of a High-resolution Eruption Sequence Based on Geologic, Petrologic and Paleomagnetic Methods and Recognition of Low Aspect Ratio Ignimbrite (LARI)2021

    • Author(s)
      長谷川 健、柴田 翔平、小林 哲夫、望月 伸竜、中川 光弘、岸本 博志
    • Journal Title

      BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN

      Volume: 66 Issue: 3 Pages: 187-210

    • DOI

      10.18940/kazan.66.3_187

    • NAID

      130008112023

    • ISSN
      0453-4360, 2189-7182
    • Year and Date
      2021-09-30
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Persistent shallow magnetic inclination in the past 5 million years with implications for regional tectonics in the Philippines2021

    • Author(s)
      Faustino-Eslava Decibel V.、Shibuya Hidetoshi、Dimalanta Carla B.、Yumul Graciano P.、Macuroy Jonathan T.
    • Journal Title

      Journal of Asian Earth Sciences: X

      Volume: 5 Pages: 100048-100048

    • DOI

      10.1016/j.jaesx.2021.100048

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A tephra-based approach to calibrating relative geomagnetic paleointensity stacks to absolute values2021

    • Author(s)
      Mochizuki Nobutatsu、Fujii Satomu、Hasegawa Takeshi、Yamamoto Yuhji、Hatakeyama Tadahiro、Yamashita Daisuke、Okada Makoto、Shibuya Hidetoshi
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 572 Pages: 117119-117119

    • DOI

      10.1016/j.epsl.2021.117119

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The BepiColombo?Mio Magnetometer en Route to Mercury2020

    • Author(s)
      Baumjohann W.、Matsuoka A.et al.
    • Journal Title

      Space Science Reviews

      Volume: 216 Issue: 8 Pages: 125-125

    • DOI

      10.1007/s11214-020-00754-y

    • Related Report
      2020 Research-status Report
  • [Journal Article] KAGUYA observation of global emissions of indigenous carbon ions from the Moon2020

    • Author(s)
      Yokota Shoichiro、Terada Kentaro、Saito Yoshifumi、Kato Daiba、Asamura Kazushi、Nishino Masaki N.、Shimizu Hisayoshi、Takahashi Futoshi、Shibuya Hidetoshi、Matsushima Masaki、Tsunakawa Hideo
    • Journal Title

      Science Advances

      Volume: 6 Issue: 19 Pages: 16-16

    • DOI

      10.1126/sciadv.aba1050

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 北海道古丹別地域に分布する上部白亜系蝦夷層群羽幌川層の放散虫化石層序2024

    • Author(s)
      黄木陽人 小松俊文 高橋修 辻野泰之 穴井千里
    • Organizer
      日本地質学会西日本支部令和5年度総会 第174回定例会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 鹿児島県甑島に分布する後期白亜紀~前期古第三紀堆積岩類の古地磁気・岩石磁気2024

    • Author(s)
      山下大輔 三宅優佳 北原優 穴井千里
    • Organizer
      日本地質学会西日本支部令和5年度総会 第174回定例会
    • Related Report
      2023 Annual Research Report
  • [Presentation] カルデラ形成噴火中の時間間隙 降下火砕物とそれを覆う火砕流堆積物の古地磁気方位に基づく考察2023

    • Author(s)
      長谷川 健, 望月伸竜
    • Organizer
      日本火山学会 2023 年度秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 北海道東部,屈斜路軽石流堆積物II/III (Kp Ⅱ/Ⅲ)と広域テフラ阿蘇4(Aso-4)の古地磁気方位:カルデラ形成噴火の継続時間見積もりと同時発生の検証2023

    • Author(s)
      柴田翔平, 長谷川 健, 谷元瞭太, 望月伸竜, 岡田 誠
    • Organizer
      日本火山学会 2023 年度秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 綱川-ショー法・IZZI-テリエ法によるラシャンエクスカーションの絶対古地磁強度測定2023

    • Author(s)
      伊藤 良介, 吉村 令慧, 石川 尚人, Tesfaye KIDANE, 加々島 慎一, 望月 伸竜, 宇津木 充
    • Organizer
      地球電磁気・地球惑星圏学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 新手法によるラシャンエクスカーションの絶対古地磁強度測定(初期分析)2023

    • Author(s)
      坂口 拓也, 望月 伸竜
    • Organizer
      地球電磁気・地球惑星圏学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 阿蘇中岳火山2019-2020年噴火に伴う噴出火山灰の岩石磁気学的研究―噴火プロセスと磁性鉱物の磁気的特徴の変化―2023

    • Author(s)
      穴井 千里, 大倉 敬宏, 吉川 慎, 望月 伸竜
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 古地磁気永年変化層序:火山噴出物層序研究への貢献2021

    • Author(s)
      望月伸竜, 穴井千里, 馬場章, 渋谷秀敏
    • Organizer
      日本地質学会第128回学術大会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] TA-TOR: a new approach to calibrating relative geomagnetic paleointensity stacks to absolute values2021

    • Author(s)
      N Mochizuki, S Fujii, T Hasegawa, Y Yamamoto, T Hatakeyama, D Yamashita, M Okada, H Shibuya
    • Organizer
      American Geophysical Union Fall Meeting 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Paleomagnetic directions and intensities from volcanic rocks in the Tendaho Graben in the Afar depression, Ethiopia2021

    • Author(s)
      H Liu, N Mochizuki, C Kato, T Kidane, A Muluneh, M Fujii, R Yoshimura, S Kagashima, Y Otofuji, N Ishikawa
    • Organizer
      地球電磁気・地球惑星圏学会第150回講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 北海道東部,摩周火山の7.6 ka噴火:爆発的カルデラ形成過程とLow aspect ratio ignimbriteの発生2021

    • Author(s)
      長谷川健, 柴田翔平, 小林哲夫, 望月伸竜, 中川光弘, 岸本博志
    • Organizer
      日本地質学会第128回学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 古地磁気・岩石磁気学的手法を用いた阿蘇火山中岳火口周辺域の完新世噴出物の分類と噴火年代の再検討2021

    • Author(s)
      穴井千里, 宮縁育夫, 宇津木充, 吉川慎, 望月伸竜, 渋谷秀敏, 大倉敬宏
    • Organizer
      日本地球惑星科学連合 2021講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Preliminary study of high resolution monitoring of paleomagnetic experiments with reef limestones2021

    • Author(s)
      穴井千里,小田啓邦
    • Organizer
      地球電磁気・気球惑星圏学会第150回講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 富士火山における紀元前 3600 から 1000 年の古地磁気方位2021

    • Author(s)
      馬場章, 渋谷秀敏
    • Organizer
      地球電磁気・気球惑星圏学会第150回講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Unraveling the hazards of 1707 eruption of Fuji volcano using paleomagnetism and historical documents2021

    • Author(s)
      A Baba, T Fujii, A Ogasawara, H Shibuya
    • Organizer
      American Geophysical Union Fall Meeting 2021
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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