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Hasegawa Takeshi  長谷川 健

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HASEGAWA Takeshi  長谷川 健

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Researcher Number 00574196
Other IDs
Affiliation (Current) 2025: 茨城大学, 基礎自然科学野, 准教授
Affiliation (based on the past Project Information) *help 2024: 茨城大学, 基礎自然科学野, 准教授
2018 – 2023: 茨城大学, 理工学研究科(理学野), 准教授
2013 – 2017: 茨城大学, 理学部, 准教授
2011 – 2012: 茨城大学, 理学部, 助教
Review Section/Research Field
Principal Investigator
Natural disaster / Disaster prevention science / Basic Section 17030:Human geosciences-related / Medium-sized Section 17:Earth and planetary science and related fields / Solid earth and planetary physics / Natural disaster science
Except Principal Investigator
Basic Section 17030:Human geosciences-related / Geology / Natural disaster / Disaster prevention science / Solid earth and planetary physics
Keywords
Principal Investigator
火山 / 古地磁気 / カルデラ / 巨大噴火 / 大規模噴火 / 古地磁気学 / マグマ / 古地磁気方位 / 広域テフラ / 火砕流 … More / 岩石学 / ラマン分光測定 / 古地磁気測定 / ラマン分光 / 噴火推移予測 / 走査電子顕微鏡・エネルギー分散型X線分析装置 / 変質鉱物 / 物質科学 / SEM-EDS / XRD / 走査型電子顕微鏡 / 熱水変質鉱物 / 水蒸気噴火 / 滞留時間 / 弾性体モデル / 超巨大噴火 / マグマ滞留時間 / 噴火継続時間 / 岩石鉱物学 / 地球物理学 / 永年変化 / 国際比較研究 / 巨大同時噴火 / 年代測定 / 火山灰 / 編年学 / 地質学 / 噴火 / 地質 / 岩石 / 同時噴火 / 対比 / 大規模火砕流 / 災害対策 / ラハール / 粒度特性 / 岩なだれ / 土石流 / 火山噴出物 … More
Except Principal Investigator
岩石磁気 / 古地磁気 / 地磁気 / 地磁気永年変化 / 火山層序 / テフラ / 残留磁化 / 開聞岳 / 古地磁気方位 / 堆積残留磁化 / 火山灰 / 岩石鉱物鉱床学 / 岩石鉱物学 / 地質学 / 自然災害 / 減災 / 噴火 / 火山 / カルデラ / 火砕物 / 火砕サージ / 火砕流 / マグマ / カルデラ噴火 / 水蒸気爆発 / 火山噴火 / クリチェフスコヤ火山 / SAR / クリチェフスカヤ火山 / 国際研究者交流 / マグマの物質科学 / 火山性地震 / カムチャッカ / クリチェフスコイ火山 / 火山岩岩石学 / マグマ供給系 / 傾斜観測 / 玄武岩質マグマ / 噴火機構 Less
  • Research Projects

    (10 results)
  • Research Products

    (174 results)
  • Co-Researchers

    (23 People)
  •  超巨大噴火は本当に存在し、将来起こるのか?古地磁気・地球物理・岩石鉱物学的検証Principal Investigator

    • Principal Investigator
      長谷川 健
    • Project Period (FY)
      2022 – 2024
    • Research Category
      Grant-in-Aid for Challenging Research (Exploratory)
    • Review Section
      Medium-sized Section 17:Earth and planetary science and related fields
    • Research Institution
      Ibaraki University
  •  Establishing a standard curve for Holocene geomagnetic variations around Japan

    • Principal Investigator
      Yamamoto Yuhji
    • Project Period (FY)
      2021 – 2023
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 17030:Human geosciences-related
    • Research Institution
      Kochi University
  •  Development of the eruptive sequence prediction method for phreatic eruptions based on petrology and geochemistry of magmatic-hydrothermal systemsPrincipal Investigator

    • Principal Investigator
      長谷川 健
    • Project Period (FY)
      2021 – 2024
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 17030:Human geosciences-related
    • Research Institution
      Ibaraki University
  •  Comparative Study of Risk Assessment for Super Eruptions between New Zealand and Japan(Fostering Joint International Research)Principal Investigator

    • Principal Investigator
      HASEGAWA Takeshi
    • Project Period (FY)
      2017 – 2021
    • Research Category
      Fund for the Promotion of Joint International Research (Fostering Joint International Research)
    • Research Field
      Natural disaster / Disaster prevention science
    • Research Institution
      Ibaraki University
  •  A basic study on remanent magnetization of volcanic ash layer

    • Principal Investigator
      Mochizuki Nobutatsu
    • Project Period (FY)
      2017 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geology
    • Research Institution
      Kumamoto University
  •  Quantitative verification of simultaneous super eruptions by using paleomagnetic directions and secular variationPrincipal Investigator

    • Principal Investigator
      Hasegawa Takeshi
    • Project Period (FY)
      2016 – 2019
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Natural disaster / Disaster prevention science
    • Research Institution
      Ibaraki University
  •  Volcano-geological approach towards high-resolution reconstructions of explosive eruption phenomena and their utilization to the volcanic hazard mitigations

    • Principal Investigator
      FUJINAWA Akihiko
    • Project Period (FY)
      2015 – 2018
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Natural disaster / Disaster prevention science
    • Research Institution
      Ibaraki University
  •  Development of the new method for tephra identification using the paleomagnetic directionsPrincipal Investigator

    • Principal Investigator
      Hasegawa Takeshi
    • Project Period (FY)
      2014 – 2015
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Solid earth and planetary physics
    • Research Institution
      Ibaraki University
  •  Transportation and deposition processes of lahar deposits from Nasu volcano、Japan: Toward a prevention of disaster in Naka River areaPrincipal Investigator

    • Principal Investigator
      HASEGAWA Takeshi
    • Project Period (FY)
      2011 – 2012
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Natural disaster science
    • Research Institution
      Ibaraki University
  •  Joint research of Japan and Russia for investigation of magma system and its eruption mechanism of the arc-type basaltic eruptive activity

    • Principal Investigator
      NAKAGAWA Mitsuhiro
    • Project Period (FY)
      2010 – 2013
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Solid earth and planetary physics
    • Research Institution
      Hokkaido University

All 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 Other

All Journal Article Presentation Book

  • [Book] 最新 地学辞典2024

    • Author(s)
      地学団体研究会 編(長谷川健分担執筆「アトサヌプリ火山群」ほか)
    • Total Pages
      2046
    • Publisher
      平凡社
    • ISBN
      9784582115086
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Book] 5万分の一地質図幅および説明書「網走」5万分の一地質図幅および説明書「網走」2018

    • Author(s)
      廣瀬 亘・川上源太郎・長谷川健・林 圭一・渡辺真人
    • Total Pages
      66
    • Publisher
      地質調査所
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Book] 釧路叢書,The Great Nature of Akan 阿寒の大自然誌2017

    • Author(s)
      長谷川健
    • Total Pages
      266
    • Publisher
      釧路市教育委員会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Book] Catastrophic volcanic events in the early Holocene: successive large-scale caldera-forming eruptions in Japan (45-56p) in "Holocene: Perspectives, Environmental Dynamics and Impact Events"2012

    • Author(s)
      Hasegawa Takeshi
    • Total Pages
      269
    • Publisher
      Nova Science Publishers
    • Data Source
      KAKENHI-PROJECT-23710201
  • [Journal Article] Eruption history and magma plumbing system of Futamatayama Volcano, southern Fukushima, Japan2023

    • Author(s)
      Watanabe Shota、Hasegawa Takeshi、Obata Naoya、Toyoda Shin、Imayama Takeshi
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 129 Issue: 1 Pages: 307-324

    • DOI

      10.5575/geosoc.2022.0061

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2023-04-06
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23K20885
  • [Journal Article] The genesis of Ba anomaly in pumice lapilli inferred from petrological features: A case study of the caldera-forming eruption of Nigorikawa volcano, Japan2023

    • Author(s)
      Kaneda Yasuaki、Hasegawa Takeshi、Imura Takumi
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 129 Issue: 1 Pages: 615-631

    • DOI

      10.5575/geosoc.2023.0027

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2023-12-22
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-21K13998, KAKENHI-PROJECT-23K20885
  • [Journal Article] Chronology and Magmatic Evolution of Shiobara Caldera-Forming Eruption Deposits, Tochigi Prefecture2023

    • Author(s)
      Nishino Yuki、Hasegawa Takeshi、Ito Hisatoshi、Kikuchi Akihiko、Ooi Shinzou
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 129 Issue: 1 Pages: 61-73

    • DOI

      10.5575/geosoc.2022.0046

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2023-02-22
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23K20885
  • [Journal Article] Multi-method constraints on the age and timescale of silicic small-volume eruptions of Puketerata Volcanic Complex, Taup? Volcanic Zone, New Zealand2023

    • Author(s)
      Kosik Szabolcs、Hasegawa Takeshi、Danisik Martin、Nemeth Karoly、Okada Makoto、Friedrichs Bjarne、Schmitt Axel K.
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 107-107

    • DOI

      10.1186/s40623-023-01861-0

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23K20885
  • [Journal Article] Magma had ejected in 1893 CE eruption (Meiji eruption) at Azuma-Jododaira volcano, Fukushima Prefecture: Inferred from paleomagnetic dating for large volcanic bombs around Tsubakurosawa craters2023

    • Author(s)
      長谷川 健、戸丸 淳晴、楠 稚枝、岡田 誠、菊池 文太、柴田 翔平、井村 匠、伴 雅雄、常松 佳恵、山本 裕二、大場 司、鈴木 和馬
    • Journal Title

      BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN

      Volume: 68 Issue: 3 Pages: 189-196

    • DOI

      10.18940/kazan.68.3_189

    • ISSN
      0453-4360, 2189-7182
    • Year and Date
      2023-09-30
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23KJ0231, KAKENHI-PROJECT-21K13998, KAKENHI-PROJECT-23K20885, KAKENHI-PROJECT-21H01171
  • [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

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-19H00710, KAKENHI-PROJECT-20K04134, KAKENHI-PROJECT-23K20885, KAKENHI-PROJECT-21H01171
  • [Journal Article] Paleomagnetism and paleomagnetic dating to large volcanic bombs: an example from the historical eruption of Azuma?Jododaira volcano, NE Japan2023

    • Author(s)
      Hasegawa Takeshi、Kikuchi Bunta、Shibata Shohei、Yamamoto Yuhji、Imura Takumi、Ban Masao、Tsunematsu Kae、Kusu Chie、Okada Makoto、Ohba Tsukasa
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 172-172

    • DOI

      10.1186/s40623-023-01931-3

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23KJ0231, KAKENHI-PROJECT-21K13998, KAKENHI-PROJECT-23K20885, KAKENHI-PROJECT-21H01171
  • [Journal Article] Varying stages of ecological succession in lakes subdivided by volcanic eruptions at Akan Caldera, Japan2023

    • Author(s)
      Wakana Isamu、Kadono Yasuro、Urabe Jotaro、Tamura Yuki、Suzuki Yoshifusa、Yamada Hiroyuki、Oyama Yoichi、Wada Keiji、Hasegawa Takeshi、Ohara Masashi
    • Journal Title

      Hydrobiologia

      Volume: 850 Issue: 18 Pages: 3919-3933

    • DOI

      10.1007/s10750-023-05231-5

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K18128, KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23K20885
  • [Journal Article] No evidence for tephra in Greenland from the historic eruption of Vesuvius in 79 CE: implications for geochronology and paleoclimatology2022

    • Author(s)
      Plunkett Gill、Sigl Michael、Schwaiger Hans F.、Tomlinson Emma L.、Toohey Matthew、McConnell Joseph R.、Pilcher Jonathan R.、Hasegawa Takeshi、Siebe Claus
    • Journal Title

      Climate of the Past

      Volume: 18 Issue: 1 Pages: 45-65

    • DOI

      10.5194/cp-18-45-2022

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16KK0092, KAKENHI-PROJECT-23K20885
  • [Journal Article] Geological, geophysical, and geochemical constraints on the time-space evolution of Akan composite caldera, Hokkaido, Japan2022

    • Author(s)
      Hasegawa Takeshi、Nakagawa Mitsuhiro、Kamiyama Hiroyuki、Yamamoto Akihiko
    • Journal Title

      Frontiers in Earth Science

      Volume: 10

    • DOI

      10.3389/feart.2022.953152

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23K20885
  • [Journal Article] Geochemical composition of dykes along the Cameroon Line (CL): Petrogenesis and similarities with the Central Atlantic Magmatic Province2022

    • Author(s)
      Asaah Asobo Nkengmatia Elvis、Yokoyama Tetsuya、Iwamori Hikaru、Aka Festus Tongwa、Tamen Jules、Kuritani Takeshi、Usui Tomohiro、Hasegawa Takeshi、Fozing Eric Martial
    • Journal Title

      Geochemistry

      Volume: - Issue: 2 Pages: 125865-125865

    • DOI

      10.1016/j.chemer.2022.125865

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16KK0092, KAKENHI-PROJECT-19H00715, KAKENHI-PROJECT-23K20885
  • [Journal Article] Eruption Sequence of 40 ka Caldera-forming Eruption (Kp I) from Kutcharo Volcano, Eastern Hokkaido, Japan: Generation Processes of Large-scale Phreatoplinian Eruption2022

    • Author(s)
      柴田 翔平、長谷川 健
    • Journal Title

      BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN

      Volume: 67 Issue: 2 Pages: 149-169

    • DOI

      10.18940/kazan.67.2_149

    • ISSN
      0453-4360, 2189-7182
    • Year and Date
      2022-06-30
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23K20885
  • [Journal Article] The complexities of assessing volcanic hazards along the Cameroon Volcanic Line using spatial distribution of monogenetic volcanoes2022

    • Author(s)
      Schmidt Christoph、Laag Christian、Whitehead Melody、Profe Jorn、Tongwa Aka Festus、Hasegawa Takeshi、Kereszturi Gabor
    • Journal Title

      Journal of Volcanology and Geothermal Research

      Volume: 427 Pages: 107558-107558

    • DOI

      10.1016/j.jvolgeores.2022.107558

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726, KAKENHI-PROJECT-23K20885
  • [Journal Article] Lithostratigraphy and geochemistry of Aojiki volcano and Sumiyoshiike and Yonemaru maars, Kamo Volcanic Field (Southern Kyushu), Japan2021

    • Author(s)
      Nche Linus Anye、Hasegawa Takeshi、Aka Festus Tongwa、Kobayashi Tetsuo、Nemeth Karoly、Asaah Asobo Nkengmatia Elvis、Kaneda Yasuaki、Nishihara Ayumu、Bate-Tibang Edith Etakah、Lebga Aloysious Kohtem、Tiabou Anicet Feudjio、Ngwa Caroline Neh、Suh Cheo Emmanuel
    • Journal Title

      Journal of Volcanology and Geothermal Research

      Volume: 412 Pages: 107170-107170

    • DOI

      10.1016/j.jvolgeores.2020.107170

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16KK0092, KAKENHI-PROJECT-23K20885
  • [Journal Article] ヤチカンバ花粉の識別と北海道東部の西別湿原における6500年前以降の植生史2021

    • Author(s)
      吉川昌伸・鈴木三男・佐藤雅俊・小林和貴・長谷川健・吉川純子・戸田博史
    • Journal Title

      植生史研究

      Volume: 29 Pages: 37-52

    • NAID

      40022576434

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [Journal Article] High-μ signature in lavas of Mt. Oku: Implications for lithospheric and asthenospheric contributions to the magmatism of the Cameroon Volcanic Line (West Africa)2021

    • Author(s)
      Asaah A.N.E.、Yokoyama T.、Iwamori H.、Aka F.T.、Kuritani T.、Usui T.、Tamen J.、Gountie Dedzo M.、Chako-Tchamabe B.、Hasegawa T.、Nche L.A.、Ohba T.
    • Journal Title

      Lithos

      Volume: 400-401 Pages: 106416-106416

    • DOI

      10.1016/j.lithos.2021.106416

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16KK0092, KAKENHI-PROJECT-19H00715, KAKENHI-PROJECT-20KK0080, KAKENHI-PLANNED-17H06459, KAKENHI-PROJECT-23K20885
  • [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
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05683, KAKENHI-PROJECT-16KK0092, KAKENHI-PROJECT-20K04134, KAKENHI-PROJECT-23K20885
  • [Journal Article] Identi!cation of Betula ovaliforia pollen and the vegetation history since 6500 cal BP of the Nishibetsu Mire, eastern Hokkaido2021

    • Author(s)
      吉川昌伸・鈴木三男・佐藤雅俊・小林和貴・長谷川健・吉川純子・戸田博史
    • Journal Title

      Japanese Journal of Historical Botany

      Volume: 29 Issue: 2 Pages: 37-52

    • DOI

      10.34596/hisbot.29.2_37

    • NAID

      40022576434

    • ISSN
      0915-003X, 2435-9238
    • Language
      Japanese
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Journal Article] Evaluation of Post-caldera Activity of Nigorikawa Volcano, SW Hokkaido2021

    • Author(s)
      金田 泰明、長谷川 健
    • Journal Title

      PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN

      Volume: 2021 Issue: 0 Pages: 50-50

    • DOI

      10.18940/vsj.2021.0_50

    • NAID

      130008162355

    • ISSN
      2189-7190, 2433-5320
    • Language
      Japanese
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16KK0092, KAKENHI-PROJECT-23K20885
  • [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

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05683, KAKENHI-PROJECT-16KK0092, KAKENHI-PROJECT-20K04134, KAKENHI-PROJECT-20K04137, KAKENHI-PROJECT-21K03727, KAKENHI-PROJECT-20H00028, KAKENHI-PROJECT-23K20885
  • [Journal Article] 栃木県北部,余笹川岩屑なだれ堆積物の層序・年代と運搬過程2020

    • Author(s)
      菊地瑛彦・長谷川健
    • Journal Title

      地質学雑誌

      Volume: -

    • NAID

      130007925914

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Journal Article] Major/trace elements and Sr?Nd?Pb isotope systematics of lavas from lakes Barombi Mbo and Barombi Koto in the Kumba graben, Cameroon volcanic line: Constraints on petrogenesis2020

    • Author(s)
      Asaah A.N.E.、Yokoyama T.、Aka F.T.、Iwamori H.、Kuritani T.、Usui T.、Gountie Dedzo M.、Tamen J.、Hasegawa T.、Fozing E.M.、Wirmvem M.J.、Nche A.L.
    • Journal Title

      Journal of African Earth Sciences

      Volume: 161 Pages: 103675-103675

    • DOI

      10.1016/j.jafrearsci.2019.103675

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PUBLICLY-18H04457, KAKENHI-PROJECT-19H00715, KAKENHI-PROJECT-19H01998, KAKENHI-PROJECT-16K01311, KAKENHI-ORGANIZER-17H06454, KAKENHI-PLANNED-17H06459, KAKENHI-PROJECT-19H01960
  • [Journal Article] Eruption history and petrogenesis of rocks from Nyos volcano (NW Cameroon): Evidence from lithostratigraphy and geochemistry2019

    • Author(s)
      Hasegawa Takeshi、Aka Festus Tongwa、Miyabuchi Yasuo、Nche Linus Anye、Kobayashi Tetsuo、Kaneko K.、Asaah Asobo Nkengmatia Elvis、Kankeu Boniface、Issa、Ohba Takeshi、Kusakabe Minoru、Hell Joseph Victor
    • Journal Title

      Journal of Volcanology and Geothermal Research

      Volume: 378 Pages: 51-71

    • DOI

      10.1016/j.jvolgeores.2019.04.003

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Journal Article] 堆積物から超大規模噴火の継続時間を読み取る方法2018

    • Author(s)
      長谷川健・望月伸竜・大岩根尚
    • Journal Title

      地学雑誌

      Volume: 印刷中

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Journal Article] Upper Triassic mafic dykes of Lake Nyos, Cameroon (West Africa) I: K-Ar age evidence within the context of Cameroon Line magmatism, and the tectonic significance2018

    • Author(s)
      Festus Tongwa Aka, Takeshi Hasegawa, Linus Anye Nche, Asobo Nkengmatia Elvis Asaah , Mumbfu Ernestine Mimba, Isidore Teitchou, Caroline Ngwa, Yasuo Miyabuchi, Tetsuo Kobayashi, Boniface Kankeu, Tetsuya Yokoyama, Gregory Tanyileke, Takeshi Ohba, Joseph Victor Hell, Minoru Kusakabe
    • Journal Title

      Journal of African Earth Sciences

      Volume: 141 Pages: 49-59

    • DOI

      10.1016/j.jafrearsci.2018.02.001

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Journal Article] 大規模カルデラ形成噴火と活動的後カルデラ火山:北海道南西部,洞爺カルデラと有珠火山の地質概説および露頭紹介2018

    • Author(s)
      長谷川健・松本亜希子・東宮昭彦・中川光弘
    • Journal Title

      地学雑誌

      Volume: 印刷中 Pages: 0-1

    • NAID

      130007395838

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Journal Article] Petrology of the 120 ka Caldera-forming Eruption of Kutcharo Volcano, Eastern Hokkaido, Japan: Coexistence of Multiple Silicic Magmas and their Relationship with Mafic Magmas2018

    • Author(s)
      Akiko Matsumoto, Takeshi Hasegawa, Mitsuhiro Nakagawa
    • Journal Title

      Journal of Petrology

      Volume: 印刷中 Issue: 4 Pages: 771-793

    • DOI

      10.1093/petrology/egy043

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-16K01311, KAKENHI-PROJECT-15H03745, KAKENHI-PROJECT-15K01245
  • [Journal Article] Large-scale Caldera-forming Eruption and Active Post-caldera Volcano: General Geology and Representative Outcrops of Toya Caldera and Usu Volcano, Southwestern Hokkaido, Japan2018

    • Author(s)
      長谷川 健、松本亜希子、東宮昭彦、中川光弘
    • Journal Title

      Journal of Geography (Chigaku Zasshi)

      Volume: 127 Issue: 2 Pages: 289-301

    • DOI

      10.5026/jgeography.127.289

    • NAID

      130007395838

    • ISSN
      0022-135X, 1884-0884
    • Year and Date
      2018-04-25
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-16K05616, KAKENHI-PROJECT-15H03745, KAKENHI-PROJECT-15K01245
  • [Journal Article] Methods of Estimating the Durations of Super Large Eruptions Based on Pyroclastic Deposits2018

    • Author(s)
      長谷川健,望月伸竜,大岩根尚
    • Journal Title

      Journal of Geography (Chigaku Zasshi)

      Volume: 127 Issue: 2 Pages: 273-288

    • DOI

      10.5026/jgeography.127.273

    • NAID

      130007395831

    • ISSN
      0022-135X, 1884-0884
    • Year and Date
      2018-04-25
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05683, KAKENHI-PROJECT-15K01245
  • [Journal Article] 大規模カルデラ形成噴火と活動的後カルデラ火山:北海道南西部,洞爺カルデラと有珠火山の地質概説および露頭紹介2018

    • Author(s)
      長谷川健・松本亜希子・東宮昭彦・中川光弘
    • Journal Title

      地学雑誌

      Volume: 印刷中

    • NAID

      130007395838

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Journal Article] Report of the IAVCEI 2017 Scientific Assembly2017

    • Author(s)
      橋本武志・長谷川健・小園誠史・萬年一剛・中道治久・隅田まり 鈴木由希・田島靖久・高木朗充・田中 良・上澤真平・山田大志
    • Journal Title

      BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN

      Volume: 62 Issue: 4 Pages: 189-196

    • DOI

      10.18940/kazan.62.4_189

    • NAID

      130006315714

    • ISSN
      0453-4360, 2189-7182
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-16K01311, KAKENHI-PROJECT-17K01332
  • [Journal Article] 北海道東部,アトサヌプリ火山における爆発的噴火履歴の再検討2017

    • Author(s)
      長谷川健・中川光弘・宮城磯冶
    • Journal Title

      地質学雑誌

      Volume: -

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Journal Article] Re-evaluation of the history of phreatic eruptions from Atosanupuri Volcano, eastern Hokkaido, Japan:2017

    • Author(s)
      長谷川健・中川光弘・宮城磯治
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 123 Issue: 5 Pages: 269-281

    • DOI

      10.5575/geosoc.2016.0051

    • NAID

      130005858666

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2017-05-15
    • Language
      Japanese
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-15K01245, KAKENHI-PROJECT-16K01311, KAKENHI-PROJECT-15H03745
  • [Journal Article] Evolution of the 120 ka caldera-forming eruption of Kutcharo volcano, eastern Hokkaido, Japan: Geologic and petrologic evidence for multiple vent systems and rapid generation of pyroclastic flow.2016

    • Author(s)
      Hasegawa, T., Matsumoto, A., Nakagawa, M.
    • Journal Title

      Journal of Volcanology and Geothermal Research

      Volume: 321 Pages: 58-72

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Journal Article] Evolution of the 120 ka caldera-forming eruption of Kutcharo volcano, eastern Hokkaido, Japan: Geologic and petrologic evidence for multiple vent systems and rapid generation of pyroclastic flow2016

    • Author(s)
      Takeshi Hasegawa, Akiko Matusmoto, Mitsuhiro Nakagawa
    • Journal Title

      Journal of Volcanology and Geothermal Research

      Volume: 未定 Pages: 58-72

    • DOI

      10.1016/j.jvolgeores.2016.04.030

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-26870073, KAKENHI-PROJECT-15H03745
  • [Journal Article] Large scale explosive eruptions of Akan volcano, eastern Hokkaido, Japan: A geological and petrological case study for establishing tephro-stratigraphy and -chronology around a caldera cluster2016

    • Author(s)
      Takeshi Hasegawa, Mitsuhiro Nakagawa
    • Journal Title

      Quaternary International

      Volume: 397 Pages: 39-51

    • DOI

      10.1016/j.quaint.2015.07.058

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-26870073, KAKENHI-PROJECT-15H03745
  • [Journal Article] 岩石学的特徴を利用した対比・同定の有効性:北海道東部,阿寒・屈斜路火山における大規模火砕流堆積物の露頭情報2014

    • Author(s)
      長谷川健・中川光弘
    • Journal Title

      火山

      Volume: 59 Pages: 269-274

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26870073
  • [Journal Article] 北海道東部,阿寒~屈斜路火山群の成り立ち : 小型カルデラが複合した大型カルデラの形成2014

    • Author(s)
      中川光弘,長谷川健,松本亜希子
    • Journal Title

      岩波科学

      Volume: 84 Pages: 97-102

    • Data Source
      KAKENHI-PROJECT-22253005
  • [Journal Article] 北海道東部,阿寒~屈斜路火山群の成り立ち:小型カルデラが複合した大型カルデラの形成2014

    • Author(s)
      中川光弘・長谷川健・松本亜希子
    • Journal Title

      科学

      Volume: 84 Pages: 97-102

    • Data Source
      KAKENHI-PROJECT-22253005
  • [Journal Article] Guidebook of Field Trips IAVCEI 2013, A1 Calderas and active volcanoes in central to eastern Hokkaido2013

    • Author(s)
      Hasegawa, T., Nakagawa, M., Kishimoto, H.
    • Journal Title

      Bulletin of Volcanological Society of Japan

      Volume: 58

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22253005
  • [Journal Article] Catastrophic volcanic events in the early Holocene: successive large-scale caldera-forming eruptions in Japan2012

    • Author(s)
      Hasegawa Takeshi
    • Journal Title

      Holocene: Perspectives、Environmental Dynamics and Impact Events、Nova Science Publishers

      Pages: 45-56

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23710201
  • [Journal Article] The eruption history and silicic magma systems of caldera-forming eruptions in eastern Hokkaido2012

    • Author(s)
      Hasegawa, T., Nakagawa, M., Kishimoto, H.
    • Journal Title

      Jour.Mineral.Petrol.Sci.

      Volume: 107 Pages: 39-43

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22253005
  • [Journal Article] The eruption history and silicic magma systems of caldera-forming eruptions in eastern Hokkaido, Japan2012

    • Author(s)
      Takeshi Hasegawa, Mitsuhiro Nakagawa and Hiroshi Kishimao
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 107 Issue: 1 Pages: 39-43

    • DOI

      10.2465/jmps.111020h

    • NAID

      10030122210

    • ISSN
      1345-6296, 1349-3825
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23710201
  • [Journal Article] Vera Ponomareva and Rybin Alexander (2011) Tephrostratigraphy and petrological study of Chikurachki and Fuss volcanoes, western Paramushir Island2011

    • Author(s)
      Takeshi Hasegawa, Mitsuhiro Nakagawa, Mitsuhiro Yoshimoto, Yoshihiro Ishizuka, Wataru Hirose, Sho-ichi Seki
    • Journal Title

      northern Kurile Islands: Evaluation of Holocene eruptive activity and temporal change of magma system. Quaternary International

      Volume: 246 Issue: 1-2 Pages: 278-297

    • DOI

      10.1016/j.quaint.2011.06.047

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23710201
  • [Journal Article] Tephrostratigraphy and petrological study of Chikurachki and Fuss volcanoes, western Paramushir Island, northern Kurile Islands : Evaluation of Holocene eruptive activity and temporal change of magma system2011

    • Author(s)
      Hasegawa, T., Nakagawa, M., Yoshimoto, M., Ishizuka, Y., Hirose, W., Seki, S., Ponomareva, V., Alexander, R.
    • Journal Title

      Quaternary International

      Volume: 246 Pages: 278-297

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22253005
  • [Journal Article] 北海道東部,釧路地域に分布する第四系の年代:高分解能テフラ層序に基づく対比と編年2011

    • Author(s)
      長谷川健・中川光弘・伊藤順一・山元孝広
    • Journal Title

      地質学雑誌

      Volume: 117 Pages: 686-699

    • NAID

      130001915383

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22253005
  • [Journal Article] 北海道東部カルデラ火山群の大規模火砕噴火史2011

    • Author(s)
      長谷川健・中川光弘・岸本博志
    • Journal Title

      月刊地球

      Volume: 33 Pages: 726-734

    • NAID

      10029454394

    • Data Source
      KAKENHI-PROJECT-22253005
  • [Journal Article] 北海道東部,屈斜路・摩周カルデラ噴出物の放射炭素年代値2010

    • Author(s)
      山元孝広・伊藤順一・中川光弘・長谷川健・岸本博志
    • Journal Title

      地質調査研究報告

      Volume: 61 Pages: 161-170

    • NAID

      130003379223

    • Data Source
      KAKENHI-PROJECT-22253005
  • [Presentation] 北海道東部,阿寒カルデラ噴出物ボーリングコア中に認められたMatuyama-Brunhes逆転境界2023

    • Author(s)
      長谷川 健、楠 稚枝、岡田 誠、平塚 葵、西来 邦章、佐藤 勇輝
    • Organizer
      JpGU Meeting 2023
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] Paleomagnetic chronology for constraining the time scales of caldera-forming eruptions: case studies from Kutcharo ignimbrite I to Ⅱ/Ⅲ and Aso-4 tephra, eastern Hokkaido, Japan2023

    • Author(s)
      Shibata, S., Hasegawa, T., Tanimoto, A., Mochizuki, N., Okada, M.
    • Organizer
      IAVCEI Commission 8th International Workshop on Collapse Calderas
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] Temporal development from crystal mush to melt-dominated reservoirs in Miyakejima volcano, Izu-Bonin arc, Japan2023

    • Author(s)
      Watanabe, S., Hasegawa, T., Oikawa, T., Geshi, N.
    • Organizer
      IAVCEI 2023, Rotorua, New Zealand
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 茨城県大子・常陸大宮地域~栃木県茂木地域における中新世アダカイトの時空分布2023

    • Author(s)
      小坂日奈子、長谷川健、内山玄基、田切美智雄、細井淳
    • Organizer
      日本地質学会第130年学術大会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 那須火山群,二岐山火山のマグマの起源:微量成分元素とSr-Nd-Pb同位体比からみた地殻・マントル相互作用の進化過程2023

    • Author(s)
      渡部将太, 長谷川 健, 松本亜希子, Aka, F. T., 中川光弘
    • Organizer
      JpGU Meeting 2023
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [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
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Preliminary results of paleomagnetic chronology for estimating the duration of the 2.08 Ma Huckleberry Ridge Tuff from Yellowstone2023

    • Author(s)
      Hasegawa, T., Shibata S., Kaneda, Y., Salazar, R., Kusu, C., Yamasaki, T., Madison, M., Wilson, C.J.N., Okada, M.
    • Organizer
      IAVCEI Commission 8th International Workshop on Collapse Calderas
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] Preliminary results of paleomagnetic chronology for estimating the duration of the 2.08 Ma Huckleberry Ridge Tuff from Yellowstone2023

    • Author(s)
      Hasegawa, T., Shibata S., Kaneda, Y., Salazar, R., Kusu, C., Yamasaki, T., Madison, M., Wilson, C.J.N., Okada, M.
    • Organizer
      IAVCEI Commission 8th International Workshop on Collapse Calderas
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 吾妻―浄土平火山鎌倉噴火以降の爆発的噴火活動履歴2023

    • Author(s)
      井村 匠, 伴 雅雄, 大津好秋, 井上朋紀, 常松佳恵, 長谷川 健, 大場 司
    • Organizer
      日本火山学会2023年度秋季大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Generation process of large-scale phreatoplinian eruption from Kutcharo volcano, eastern Hokkaifo: Inferred from stratigraphy and water content of volcanic glass2023

    • Author(s)
      Shibata, S., Hasegawa, T.
    • Organizer
      IAVCEI 2023, Rotorua, New Zealand
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 那須火山群,二岐山火山の初生マグマとマントル溶融条件の予察的検討2023

    • Author(s)
      渡部将太, 長谷川 健, Festus T. A., 松本亜希子, 中川光弘
    • Organizer
      日本火山学会2023年度秋季大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 北海道南西部,濁川火山におけるカルデラ形成噴火の推移と小型カルデラの構造発達過程2023

    • Author(s)
      金田泰明・長谷川健
    • Organizer
      日本火山学会2023年度秋季大会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 那須火山群,二岐山火山のマグマの起源:微量成分元素とSr-Nd-Pb同位体比からみた地殻・マントル相互作用の進化過程2023

    • Author(s)
      渡部将太, 長谷川 健, 松本亜希子, Aka, F. T., 中川光弘
    • Organizer
      JpGU Meeting 2023
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [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
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 東北日本、吾妻山の最新マグマ噴火噴出物をもたらしたマグマ供給系2023

    • Author(s)
      伴 雅雄, 菅野 舜, 佐藤 初洋, 井村 匠, 常松 佳恵, 長谷川健
    • Organizer
      日本地質学会第130年学術大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 北海道南西部,濁川カルデラ噴出物中の軽石に認められる高Ba異常とその原因: 変質を受けたリサイクル軽石の認定.2023

    • Author(s)
      金田泰明・長谷川健・井村 匠
    • Organizer
      日本地質学会第130年学術大会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 那須火山群,二岐山火山の初生マグマとマントル溶融条件の予察的検討2023

    • Author(s)
      渡部将太, 長谷川 健, Festus T. A., 松本亜希子, 中川光弘
    • Organizer
      日本火山学会2023年度秋季大会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [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
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 茨城県大子・常陸大宮地域~栃木県茂木地域における中新世アダカイトの時空分布2023

    • Author(s)
      小坂日奈子、長谷川健、内山玄基、田切美智雄、細井淳
    • Organizer
      日本地質学会第130年学術大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Magmatic response to the subduction initiation of Early Cretaceous Nidar Ophiolite complex, eastern Ladakh, NW Himalaya2023

    • Author(s)
      Imayama, T., Sato, A., Driota, D., Kaneda, Y., Watanabe, S., Hasegawa, T., Minami, M., Wakasugi, Y., Wakaki, S., and Keewook, Y
    • Organizer
      EGU General Assembly 2023
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Paleomagnetic chronology for constraining the time scales of caldera-forming eruptions: case studies from Kutcharo ignimbrite I to Ⅱ/Ⅲ and Aso-4 tephra, eastern Hokkaido, Japan2023

    • Author(s)
      Shibata, S., Hasegawa, T., Tanimoto, A., Mochizuki, N., Okada, M.
    • Organizer
      IAVCEI Commission 8th International Workshop on Collapse Calderas
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 北海道南西部,濁川カルデラ噴出物中の軽石に認められる高Ba異常とその原因: 変質を受けたリサイクル軽石の認定.2023

    • Author(s)
      金田泰明・長谷川健・井村 匠
    • Organizer
      日本地質学会第130年学術大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 北海道南西部,濁川火山におけるカルデラ形成噴火の推移と小型カルデラの構造発達過程2023

    • Author(s)
      金田泰明・長谷川健
    • Organizer
      日本火山学会2023年度秋季大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 1914年桜島火山噴火以降の姶良カルデラ下における地殻応力の変遷: 測地・地物データで制約された粘弾性地殻変動モデルからの推定2023

    • Author(s)
      山崎 雅・長谷川健・Siqi Li・Freysteinn Sigmundsson
    • Organizer
      日本火山学会2023年度秋季大会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 北海道東部,屈斜路火山における120 ka最大規模カルデラ形成噴火堆積物(KpⅣ)の石質岩片構成物分析2023

    • Author(s)
      長田 美里、長谷川 健、柴田 翔平
    • Organizer
      JpGU Meeting 2023
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Stratigraphic sequence and geochemical characteristics of Lake Monoun Maar deposits, Noun Plain, Western part of the Cameroon Volcanic Line2023

    • Author(s)
      Nche, L. A. Hasegawa, T., Aka, F. T., Miyabuchi, Y., Kaneda, Y., Watanabe, S., Ngwa, C. N., Ohba, T.
    • Organizer
      IAVCEI Commission 11th Workshop on Volcanic Lakes. S?o Miguel, Portugal
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] Upper Triassic mafic dykes of Lake Nyos II (comparisons with other dykes): Geochemical evidence for paleosubduction-modified mantle beneath Cameroon Line2023

    • Author(s)
      Hasegawa, T., Aka, F.T., Watanabe, S., Nche N.A., Asaah, A.N.E., Iwamori, H., Yokoyama, T., Sumino, H., Ichihara, M., Ohba, T.
    • Organizer
      IAVCEI 2023, Rotorua, New Zealand
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 北海道東部,阿寒カルデラ噴出物ボーリングコア中に認められたMatuyama-Brunhes逆転境界2023

    • Author(s)
      長谷川 健、楠 稚枝、岡田 誠、平塚 葵、西来 邦章、佐藤 勇輝
    • Organizer
      JpGU Meeting 2023
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [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
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 北海道東部,屈斜路火山における120 ka最大規模カルデラ形成噴火堆積物(KpⅣ)の石質岩片構成物分析2023

    • Author(s)
      長田 美里、長谷川 健、柴田 翔平
    • Organizer
      JpGU Meeting 2023
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] Magmatic response to the subduction initiation of Early Cretaceous Nidar Ophiolite complex, eastern Ladakh, NW Himalaya2023

    • Author(s)
      Imayama, T., Sato, A., Driota, D., Kaneda, Y., Watanabe, S., Hasegawa, T., Minami, M., Wakasugi, Y., Wakaki, S., and Keewook, Y
    • Organizer
      EGU General Assembly 2023
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 大規模水蒸気プリニー式噴火の発生機構とマグマ破砕過程:火山ガラス含水量からの考察2023

    • Author(s)
      柴田 翔平、長谷川 健
    • Organizer
      JpGU Meeting 2023
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 大規模水蒸気プリニー式噴火の発生機構とマグマ破砕過程:火山ガラス含水量からの考察2023

    • Author(s)
      柴田 翔平、長谷川 健
    • Organizer
      JpGU Meeting 2023
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] Did CAMP magmatism extend to the proto Cameroon Volcanic Line in the Gulf of Guinea?2023

    • Author(s)
      Aka, F.T., Hasegawa, T., Watanabe, S., Asaah, A.N.E., Nche N.A., Iwamori, H., Sumino, H., Yokoyama, T., Ichihara, M., Ohba, T.
    • Organizer
      IAVCEI 2023, Rotorua, New Zealand
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 1914年桜島火山噴火以降の姶良カルデラ下における地殻応力の変遷: 測地・地物データで制約された粘弾性地殻変動モデルからの推定2023

    • Author(s)
      山崎 雅・長谷川健・Siqi Li・Freysteinn Sigmundsson
    • Organizer
      日本火山学会2023年度秋季大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Recording the time interval between twin caldera-forming eruptions during a geomagnetic excursion: a paleomagnetic study in the Taup Volcanic Zone2023

    • Author(s)
      Gravley, D.M., Hasegawa, T., Mochizuki, N., Kusu, C., Okada, M.
    • Organizer
      IAVCEI 2023 Scientific Assembly
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21H01171
  • [Presentation] Stratigraphic sequence and geochemical characteristics of Lake Monoun Maar deposits, Noun Plain, Western part of the Cameroon Volcanic Line2023

    • Author(s)
      Nche, L. A. Hasegawa, T., Aka, F. T., Miyabuchi, Y., Kaneda, Y., Watanabe, S., Ngwa, C. N., Ohba, T.
    • Organizer
      IAVCEI Commission 11th Workshop on Volcanic Lakes. S?o Miguel, Portugal
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 吾妻ー浄土平火山,吾妻小富士火砕丘の層序と噴火様式の変遷2022

    • Author(s)
      鈴木和馬,戸丸淳晴,長谷川健
    • Organizer
      日本火山学会2022年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] テフラ層序に基づく那須茶臼岳火山の岩石鉱物学的検討2022

    • Author(s)
      吉川洸希,長谷川健,Chris Conway,谷健一郎
    • Organizer
      日本火山学会2022年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 吾妻火山群最新期,吾妻小富士噴出物の層序と山体形成史2022

    • Author(s)
      鈴木和馬,戸丸淳晴,長谷川健
    • Organizer
      日本地質学会第129回学術大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 吾妻火山,燕沢火口列周辺に分布する巨大な火山弾の古地磁気年代測定:1893年噴火がマグマ噴火であった可能性について2022

    • Author(s)
      長谷川健・菊池文太・柴田翔平・山本裕二・井村 匠・伴 雅雄・岡田 誠・相部 達郎
    • Organizer
      日本地球惑星科学連合2022年大会
    • Data Source
      KAKENHI-PROJECT-21H01171
  • [Presentation] Did CAMP magmatism extend to the proto?Cameroon Volcanic Line in the Gulf of Guinea?2022

    • Author(s)
      Aka, F.T., Hasegawa, T., Watanabe, S., Asaah, A.N.E., Nche N.A., Iwamori, H., Sumino, H., Yokoyama, T., Ichihara, M., Ohba, T.
    • Organizer
      IAVCEI 2023, Rotorua
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Upper Triassic mafic dykes of Lake Nyos II (comparisons with other dykes): Geochemical evidence for paleosubduction-modified mantle beneath Cameroon Line2022

    • Author(s)
      Hasegawa, T., Aka, F.T., Watanabe, S., Nche N.A., Asaah, A.N.E., Iwamori, H., Yokoyama, T., Sumino, H., Ichihara, M., Ohba, T.
    • Organizer
      IAVCEI 2023, Rotorua
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 三宅島火山,南部沿岸域に分布するマグマ水蒸気噴火堆積物の層序とマール群の噴火活動史2022

    • Author(s)
      渡部将太, 及川輝樹, 下司信夫, 長谷川健
    • Organizer
      JpGU Meeting 2022, 幕張 & オンライン
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 吾妻火山,燕沢火口列周辺に分布する巨大な火山弾の古地磁気年代測定:1893年噴火がマグマ噴火であった可能性について2022

    • Author(s)
      長谷川健,菊池文太,柴田翔平,山本祐二,井村匠,伴雅雄,岡田誠,相部達郎
    • Organizer
      JpGU Meeting 2022
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 吾妻火山,燕沢火口列周辺に分布する巨大な火山弾の古地磁気年代測定:1893年噴火がマグマ噴火であった可能性について2022

    • Author(s)
      長谷川健,菊池文太,柴田翔平,山本祐二,井村匠,伴雅雄,岡田誠,相部達郎
    • Organizer
      JpGU Meeting 2022, 幕張 & オンライン
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] Temporal development from crystal mush to melt-dominated reservoirs in Miyakejima volcano, Izu-Bonin arc, Japan2022

    • Author(s)
      Watanabe, S., Hasegawa, T., Oikawa, T., Geshi, N.
    • Organizer
      IAVCEI 2023, Rotorua
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 北海道東部,屈斜路火山40 ka噴火(Kp I)からみる水蒸気プリニー式噴火の発生機構:マグマー外来水の接触条件について2022

    • Author(s)
      柴田翔平,長谷川健
    • Organizer
      JpGU Meeting 2022, 幕張 & オンライン
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 北海道東部,屈斜路火山40 ka噴火(Kp I)からみる水蒸気プリニー式噴火の発生機構:マグマー外来水の接触条件について2022

    • Author(s)
      柴田翔平,長谷川健
    • Organizer
      JpGU Meeting 2022
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Paleomagnetic directional change observed for non-welded pyrocrastic flow deposits of the 46 ka Shikotsu caldera-forming eruption2022

    • Author(s)
      望月伸竜,長谷川健,穴井千里,中川光弘,渋谷秀敏
    • Organizer
      第152回地球電磁気・地球惑星圏学会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] テフラ層序に基づく那須茶臼岳火山の岩石鉱物学的検討2022

    • Author(s)
      吉川洸希,長谷川健,Chris Conway,谷健一郎
    • Organizer
      日本火山学会2022年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 吾妻ー浄土平火山,吾妻小富士火砕丘の層序と噴火様式の変遷2022

    • Author(s)
      鈴木和馬,戸丸淳晴,長谷川健
    • Organizer
      日本火山学会2022年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] 吾妻火山群最新期,吾妻小富士噴出物の層序と山体形成史2022

    • Author(s)
      鈴木和馬,戸丸淳晴,長谷川健
    • Organizer
      日本地質学会第129回学術大会
    • Data Source
      KAKENHI-PROJECT-22K18726
  • [Presentation] Paleomagnetic directional change observed for non-welded pyrocrastic flow deposits of the 46 ka Shikotsu caldera-forming eruption2022

    • Author(s)
      望月伸竜,長谷川健,穴井千里,中川光弘,渋谷秀敏
    • Organizer
      第152回地球電磁気・地球惑星圏学会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Generation process of large-scale phreatoplinian eruption from Kutcharo volcano, eastern Hokkaifo: Inferred from stratigraphy and water content of volcanic glass2022

    • Author(s)
      Shibata, S., Hasegawa, T.
    • Organizer
      IAVCEI 2023, Rotorua
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 三宅島火山,南部沿岸域に分布するマグマ水蒸気噴火堆積物の層序とマール群の噴火活動史2022

    • Author(s)
      渡部将太, 及川輝樹, 下司信夫, 長谷川健
    • Organizer
      JpGU Meeting 2022
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [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年学術大会
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [Presentation] TA-TOR: a new approach to calibrating relative geomagnetic paleointensity stacks to absolute values2021

    • Author(s)
      Nobutatsu Mochizuki, Satomu Fujii, Takeshi Hasegawa, Yuhji Yamamoto, Tadahiro Hatakeyama, Daisuke Yamashita, Makoto Okada, Hidetoshi Shibuya
    • Organizer
      AGU Fall Meeting 2021
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05683
  • [Presentation] ニュージーランド,タウポ噴火の古地磁気年代測定2021

    • Author(s)
      長谷川健, Greve, A., Gravley, D.M., 楠稚枝, 岡田誠, Kosik, S., 望月伸竜, 金田泰明
    • Organizer
      火山学会2021年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [Presentation] Discovery of new block and ash flow deposit from Azuma-kofuji volcano, Fukushima, Japan2021

    • Author(s)
      長谷川健・鈴木 和馬
    • Organizer
      JpGU Meeting 2021
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Paleomagnetic Estimations of the Duration and Age of the Taupo Eruption, New Zealand2021

    • Author(s)
      Hasegawa, T., Greve, A., Gravley, D.M., Kusu, C., Okada, M., Kosik, S., Mochizuki, N., Kaneda, Y.
    • Organizer
      AGU Fall meeting 2021
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [Presentation] 三宅島火山,4.0-2.5 ka 噴出物の層序と岩石学的特徴: 静穏期から活動期へのマグマ供給系の進化プロセス2021

    • Author(s)
      渡部将太, 長谷川 健, 及川輝樹, 下司信夫
    • Organizer
      山学会2021年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [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年学術大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 濁川火山における後カルデラ活動の再評価2021

    • Author(s)
      金田泰明・長谷川健
    • Organizer
      火山学会2021年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 北西インドNidarオフィオライト層火成岩類の岩石学的・地球化学的研究2021

    • Author(s)
      佐藤成修・今山武志・Dutta Dripta・金田泰明・渡部将太・長谷川健・南 雅代・若杉勇輝・若木重行
    • Organizer
      日本鉱物科学会2021年年会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] Paleomagnetic Estimations of the Duration and Age of the Taupo Eruption, New Zealand2021

    • Author(s)
      Hasegawa, T., Greve, A., Gravley, D.M., Kusu, C., Okada, M., Kosik, S., Mochizuki, N., Kaneda, Y.
    • Organizer
      AGU Fall meeting 2021
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 福島県南部,二岐山火山の噴火史とマグマ供給系2021

    • Author(s)
      渡部将太・長谷川健・小畑直也・豊田 新・今山武志
    • Organizer
      日本地質学会第128年学術大会
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [Presentation] Discovery of new block and ash flow deposit from Azuma-kofuji volcano, Fukushima, Japan2021

    • Author(s)
      長谷川健・鈴木 和馬
    • Organizer
      JpGU Meeting 2021
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [Presentation] 福島県南部,二岐山火山の噴火史とマグマ供給系2021

    • Author(s)
      渡部将太・長谷川健・小畑直也・豊田 新・今山武志
    • Organizer
      日本地質学会第128年学術大会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] 北西インドNidarオフィオライト層火成岩類の岩石学的・地球化学的研究2021

    • Author(s)
      佐藤成修・今山武志・Dutta Dripta・金田泰明・渡部将太・長谷川健・南 雅代・若杉勇輝・若木重行
    • Organizer
      日本鉱物科学会2021年年会
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [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
    • Data Source
      KAKENHI-PROJECT-17K05683
  • [Presentation] 濁川火山における後カルデラ活動の再評価2021

    • Author(s)
      金田泰明・長谷川健
    • Organizer
      火山学会2021年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-16KK0092
  • [Presentation] 三宅島火山,4.0-2.5 ka 噴出物の層序と岩石学的特徴: 静穏期から活動期へのマグマ供給系の進化プロセス2021

    • Author(s)
      渡部将太, 長谷川 健, 及川輝樹, 下司信夫
    • Organizer
      山学会2021年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] ニュージーランド,タウポ噴火の古地磁気年代測定2021

    • Author(s)
      長谷川健, Greve, A., Gravley, D.M., 楠稚枝, 岡田誠, Kosik, S., 望月伸竜, 金田泰明
    • Organizer
      火山学会2021年秋季大会学術講演会
    • Data Source
      KAKENHI-PROJECT-23K20885
  • [Presentation] The TA-TOR approach to calibrating relative geomagnetic paleointensity stacks to absolute values,2021

    • Author(s)
      Mochizuki, N., Fujii, S., Hasegawa, T., Yamamoto, Y., Hatakeyama, T., Yamashita, D., Okada, M., Shibuya, H.
    • Organizer
      American Geophysical Union Fall Meeting
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21H01171
  • [Presentation] 古地磁気方位と永年変化を利用した大規模カルデラ噴火の継続時間の推定:姶良カルデラとMamaku/Ohakuri ignimbritesの例2020

    • Author(s)
      長谷川 健, 望月 伸竜, Gravley Darren, 楠 稚枝, 岡田 誠, 下司 信夫, Kosik Szabolcs, 柴田 翔平, 金田 泰明
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05683
  • [Presentation] Geologic and petrologic study of the Kamo monogenetic volcanic field, Southern Kyushu, Japan2019

    • Author(s)
      Nche, L.A., Hasegawa, T., Kobayashi, T., Nemeth K., Aka, F.T.
    • Organizer
      JpGU meeting
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 那須火山群,二岐火山の地質と岩石2019

    • Author(s)
      渡部将太・長谷川健
    • Organizer
      JpGU meeting
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 北海道南西部,濁川火山のカルデラ形成期噴出物の岩石学的特徴2019

    • Author(s)
      金田泰明・長谷川健
    • Organizer
      JpGU meeting
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] Petrographic and geochemical characteristics of Kamo monogenetic volcanic group (Southern Kyushu, Japan)2019

    • Author(s)
      Nche, L.A., Hasegawa, T., Aka, F.T., Kobayashi, T., Nemeth, K.
    • Organizer
      IAVCEI 5th Volcaic geology workshop
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 北海道東部,摩周火山における7.6kaカルデラ形成噴火の推移2019

    • Author(s)
      柴田翔平・長谷川健
    • Organizer
      JpGU meeting
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 支笏カルデラ噴火堆積物の古地磁気学的測定:大規模噴火堆積物の時間間隙の推定へ向けて2018

    • Author(s)
      望月 伸竜・長谷川 健・中川 光弘
    • Organizer
      日本地球惑星科学連合2018年大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] Petrographic and geochemical features of tephras from the Kamo monogenetic volcanic group, southern Kyushu, Japan2018

    • Author(s)
      Nche, L.A., Hasegawa, T., Kobayashi, T., Aka, F.T.
    • Organizer
      日本火山学会2018年度秋季大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 鬼界カルデラ形成噴火における時間間隙:古地磁気方位と地磁気永年変化からの推定2018

    • Author(s)
      長谷川健・望月伸竜・大岩根尚
    • Organizer
      日本地球惑星科学連合2018年大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 支笏カルデラ噴火堆積物の古地磁気学的測定:大規模噴火堆積物の時間間隙の推定へ向けて2018

    • Author(s)
      望月 伸竜、長谷川 健、中川 光弘
    • Organizer
      JpGU Meeting 2018
    • Data Source
      KAKENHI-PROJECT-17K05683
  • [Presentation] 鬼界カルデラ形成噴火における時間間隙:古地磁気方位と地磁気永年変化からの推定2018

    • Author(s)
      長谷川 健、望月 伸竜、大岩根 尚
    • Organizer
      JpGU Meeting 2018
    • Data Source
      KAKENHI-PROJECT-17K05683
  • [Presentation] 栃木県,高原火山におけるカルデラ形成期初期噴出物の年代2018

    • Author(s)
      西野佑紀・伊藤久敏・長谷川健・菊地瑛彦
    • Organizer
      日本第四紀学会2018年大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 北海道東部,摩周火山東麓のボーリングコア記載とその特徴2018

    • Author(s)
      岸本 博志・長谷川 健・中川 光弘
    • Organizer
      日本地球惑星科学連合2018年大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 北海道東部,摩周火山東麓のボーリングコア記載とその特徴2018

    • Author(s)
      岸本博志・長谷川健・中川光弘
    • Organizer
      日本地球惑星科学連合2018年大会
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Presentation] 栃木県北部,高原火山におけるカルデラ形成期の活動年代とマグマ系2018

    • Author(s)
      西野佑紀・長谷川健
    • Organizer
      日本火山学会2018年秋季大会
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Presentation] 那須茶臼岳火山,1408年~1410年噴火(室町噴火)の推移2018

    • Author(s)
      長谷川健・北原遼太
    • Organizer
      日本火山学会2018年秋季大会
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Presentation] 栃木県北部,高原火山におけるカルデラ形成期の活動年代とマグマ系2018

    • Author(s)
      西野佑紀・長谷川健
    • Organizer
      日本火山学会2018年度秋季大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] Eruption history and magma systems of Nyos volcano, northwestern Cameroon2018

    • Author(s)
      Hasegawa Takeshi、Aka Festus Tongwa、Miyabuchi Yasuo、Nche Linus Anye、Kobayashi Tetsuo、Kaneko K.、Asaah Asobo Nkengmatia Elvis、Kankeu Boniface、Issa、Ohba Takeshi、Kusakabe Minoru、Hell Joseph Victor
    • Organizer
      Cities on Volcanoes 10
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 北海道東部,摩周火山で7,600年前に発生したカルデラ形成噴火の推移2017

    • Author(s)
      長谷川健・長谷川弘樹・小林哲夫・Gravley Darren
    • Organizer
      日本火山学会2017年度秋季大会
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Presentation] Geomorphological Evolution of Hashirikotan barrier spit controlled by Seismotectonics along the Southern Kuril Subduction Zone2017

    • Author(s)
      Futoshi Nanayama, Kiyoyuki Shigeno, Kazuaki Watanabe, Takeshi Hasegawa, Yasuhito Uchida, Yasuo Ikeda
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] Connecting marine and on-land paleoinitensity studies2017

    • Author(s)
      Hidetoshi Shibuya, Nobutatsu Mochizuki, Takeshi Hasegawa and Makoto Okada
    • Organizer
      2017 GSA Cordilleran Section Meeting
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] Emplacement of highly mobile and ‘cool’ block-rich PDCs from the Mashu caldera-forming eruption, eastern Hokkaido, Japan2017

    • Author(s)
      Takeshi Hasegawa, Hiroki Hasegawa, Tetsuo Kobayashi and Darren Gravley
    • Organizer
      IAVCEI 2017 Scientific Assembly
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] Emplacement of highly mobile and ‘cool’ block-rich PDCs from the Mashu caldera-forming eruption, eastern Hokkaido, Japan2017

    • Author(s)
      Takeshi Hasegawa, Hiroki Hasegawa, Tetsuo Kobayashi and Darren Gravley
    • Organizer
      IAVCEI
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Presentation] 福島県南部,鎌房山における火砕堆積物のマグマ供給系2017

    • Author(s)
      関根大輔・長谷川健・藤縄明彦
    • Organizer
      日本火山学会2017年度秋季大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 栃木県,高原火山におけるカルデラ形成期の火砕堆積物の層序と年代2017

    • Author(s)
      西野佑紀・長谷川健・藤縄明彦
    • Organizer
      日本火山学会2017年度秋季大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 栃木県,高原火山におけるカルデラ形成期の火砕堆積物の層序と年代2017

    • Author(s)
      西野佑紀・長谷川健・藤縄明彦
    • Organizer
      日本火山学会2017年度秋季大会
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Presentation] 5万分の1地質図幅「網走」の概要2017

    • Author(s)
      川上源太郎・廣瀬 亘・林 圭一・渡辺真人・長谷川健
    • Organizer
      日本地質学会124年学術大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 野付崎バリアースピッツの現行過程の視点から読み解く現在・過去・未来2017

    • Author(s)
      七山 太・渡辺和明・重野聖之・石井正之・長谷川健・内田康人・石渡一人
    • Organizer
      日本第四紀学会2017年大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 北海道東部,摩周火山で7,600年前に発生したカルデラ形成噴火の推移2017

    • Author(s)
      長谷川健・長谷川弘樹・小林哲夫・Gravley Darren
    • Organizer
      日本火山学会2017年度秋季大会
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] Eruption history and magma processes of pyroclastic deposits around Kamafusayama, southern Fukushima, Japan2017

    • Author(s)
      Daisuke Sekina, Takeshi Hasegawa
    • Organizer
      IAVCEI 2017 Scientific Assembly
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 福島県南部,鎌房山における火砕堆積物・岩屑なだれ堆積物の層序2016

    • Author(s)
      関根大輔,長谷川健
    • Organizer
      日本火山学会2016年度秋季大会
    • Place of Presentation
      山梨・富士吉田市
    • Year and Date
      2016-10-13
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Presentation] Eruption sequence of BC 5,600 Mashu caldera-forming eruption.2016

    • Author(s)
      Hasegawa, T., Hasegawa, H., Kobayashi, T.
    • Organizer
      6th Workshop on Collapse Caldera
    • Place of Presentation
      北海道
    • Year and Date
      2016-09-06
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K01245
  • [Presentation] Eruption interval during the caldera-forming eruptions of Kikai volcano, Ryukyu Islands, Japan: estimation by using the paleomagnetic directions and secular variation2016

    • Author(s)
      Takeshi Hasegawa, Nobutatsu Mochizuki, Hisashi Oiwane
    • Organizer
      International Workshop on Collapse Calderas
    • Place of Presentation
      Hokkaido
    • Year and Date
      2016-09-01
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26870073
  • [Presentation] Eruption sequence of BC 5,600 Mashu caldera-forming eruption2016

    • Author(s)
      Takeshi Hasegawa, Hiroki Hasegawa, Tetsuo Kobayashi
    • Organizer
      The 6th Internatinal Workshop on Collapse Caldera
    • Place of Presentation
      Hokkaido
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] Duration of the caldera-forming eruptions of Kikai volcano, Japan: preliminary estimation from paleomagnetic directions and secular variation2016

    • Author(s)
      Takeshi Hasegawa, Nobutatsu Mochizuki, Hisashi Oiwane
    • Organizer
      The 6th Internatinal Workshop on Collapse Caldera
    • Place of Presentation
      Hokkaido
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16K01311
  • [Presentation] 絶対古地磁気強度とテフロクロノロジー:相対古地磁気強度変動曲線の絶対較正2015

    • Author(s)
      望月伸竜・藤井哲夢・長谷川健・岡田 誠・渋谷秀敏
    • Organizer
      日本地球惑星科学連合連合大会
    • Place of Presentation
      Sapporo
    • Year and Date
      2015-05-22
    • Invited
    • Data Source
      KAKENHI-PROJECT-26870073
  • [Presentation] 下北半島沖海底コアC9001Cに挟在する更新世テフラ群の同定2014

    • Author(s)
      長谷川健
    • Organizer
      日本地球惑星科学連合2014年大会
    • Place of Presentation
      横浜
    • Year and Date
      2014-05-02
    • Data Source
      KAKENHI-PROJECT-26870073
  • [Presentation] (2014) Absolute paleointensity determinations of welded tuffs correlated with widespread tephras in marine sediment cores2014

    • Author(s)
      Takeshi Hasegawa
    • Organizer
      8th Biennial Workshop on Japan-Kamchatka-Alaska Subduction Processes
    • Place of Presentation
      札幌
    • Year and Date
      2014-09-23
    • Data Source
      KAKENHI-PROJECT-26870073
  • [Presentation] 茨城県北部,瓜連丘陵に分布する粟河軽石層の給源と年代2013

    • Author(s)
      長谷川健
    • Organizer
      日本地球惑星科学連合大会2013年度大会
    • Place of Presentation
      千葉
    • Data Source
      KAKENHI-PROJECT-23710201
  • [Presentation] Simultaneous generation of multiple silicic magmas and their zoned magma chamber related to a caldeara-forming eruption : Case studies of Shikotsu and Mashu volcanoes, Japan2013

    • Author(s)
      Nakagawa, M, Kitagawa, J., Wakasa, H., Takeda, K., Amma-Miyasaka, M.,, Hasegawa, T., Kishimoto, H.
    • Organizer
      IAVCEI 2013 Scientific assembly
    • Place of Presentation
      鹿児島県文化交流センター(鹿児島市)
    • Year and Date
      2013-07-23
    • Data Source
      KAKENHI-PROJECT-22253005
  • [Presentation] 北海道における後期更新世の火山活動の時空変遷と関連テクトニクス : 火山活動の長期予測に向けて2012

    • Author(s)
      中川光弘, 小杉安由美, 長谷川健,石井英一,石塚吉浩
    • Organizer
      地球惑星科学関連学会2012年連合大会
    • Place of Presentation
      幕張メッセ国際会議場(千葉)
    • Year and Date
      2012-05-21
    • Data Source
      KAKENHI-PROJECT-22253005
  • [Presentation] 茨城県北部、瓜連丘陵に分布する粟河軽石層の給源と年代2012

    • Author(s)
      菊地 瑛彦・長谷川 健
    • Organizer
      日本地球惑星科学連合大会2013年度大会
    • Place of Presentation
      千葉
    • Year and Date
      2012-05-21
    • Data Source
      KAKENHI-PROJECT-23710201
  • [Presentation] Eruption history and temporal change of magma systems of Chikurachki and Fuss volcanoes、western Paramushir Island、northern Kurile Islands2011

    • Author(s)
      Hasegawa Takeshi
    • Organizer
      Kuril Biocomplexity Project (KBP) Synthesis Workshop
    • Place of Presentation
      USA、Seattle
    • Year and Date
      2011-10-31
    • Data Source
      KAKENHI-PROJECT-23710201
  • [Presentation] (2011) Tephrostratigraphy and petrological study of Chikurachki and Fuss volcanoes, western Paramushir Island, northern Kurile Islands2011

    • Author(s)
      Takeshi Hasegawa, Mitsuhiro Nakagawa, Mitsuhiro Yoshimoto, Yoshihiro Ishizuka, Wataru Hirose, Sho-ichi Seki, Vera Ponomareva and Rybin Alexander
    • Organizer
      7th Biennial Workshop on Subduction Processes emphasizing the Japan-Kurile-Kamchatka-Aleutian Arcs (JKASP)
    • Place of Presentation
      Petropavlovsk-Kamchatsky, Russia
    • Data Source
      KAKENHI-PROJECT-23710201
  • [Presentation] 北海道における後期更新世の火山活動の時空変遷と関連テクトニクス2010

    • Author(s)
      中川光弘・小杉安由美・長谷川健・石井英一・石塚吉浩
    • Organizer
      日本地質学会第117年学術大会
    • Place of Presentation
      富山大学(富山市)
    • Year and Date
      2010-09-19
    • Data Source
      KAKENHI-PROJECT-22253005
  • [Presentation] 北海道東部,アトサヌプリ火山の爆発的噴火史の再検討

    • Author(s)
      長谷川健,中川光弘,宮城磯治
    • Organizer
      日本火山学会2012年秋季大会
    • Place of Presentation
      エコールみよた(長野)
    • Data Source
      KAKENHI-PROJECT-22253005
  • [Presentation] 北海道における後期更新世の火山活動の時空変遷と関連テクトニクス:火山活動の長期予測に向けて

    • Author(s)
      中川光弘,小杉安由美,長谷川健,石井英一,石塚吉浩
    • Organizer
      地球惑星科学関連学会2012年連合大会
    • Place of Presentation
      幕張メッセ国際会議場(千葉)
    • Data Source
      KAKENHI-PROJECT-22253005
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  • 21.  井村 匠 (20878524)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 4 results
  • 22.  YOKOYAMA Tetsuya
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results
  • 23.  占部 城太郎
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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