Transportation and deposition processes of lahar deposits from Nasu volcano、Japan: Toward a prevention of disaster in Naka River area

• Project/Area Number: 23710201
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Natural disaster science
• Research Institution: Ibaraki University
• Principal Investigator: HASEGAWA Takeshi 茨城大学, 理学部, 助教 (00574196)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 火山噴出物 / 土石流 / 岩なだれ / 火山 / 岩石学 / 粒度特性 / ラハール / 災害対策 / 火砕流

Research Abstract

We carried out geological and petrological investigations to reveal the source and age of a large-scale lahar deposit in the Lower Naka River、around Mito city. The lahar deposit can be correlated with one of the largest debris avalanche deposit in the Upper Naka River、which had been derived from Nasu volcanic group during the last 60 ky.

Research Products

• [Journal Article] Catastrophic volcanic events in the early Holocene: successive large-scale caldera-forming eruptions in Japan (2012)
  • Author(s): Hasegawa Takeshi
  • Journal Title: Holocene: Perspectives、Environmental Dynamics and Impact Events、Nova Science Publishers Pages: 45-56
  • Peer Reviewed
• [Journal Article] The eruption history and silicic magma systems of caldera-forming eruptions in eastern Hokkaido, Japan (2012)
  • 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
  • Peer Reviewed
• [Journal Article] Vera Ponomareva and Rybin Alexander (2011) Tephrostratigraphy and petrological study of Chikurachki and Fuss volcanoes, western Paramushir Island (2011)
  • 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
• [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
• [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
• [Presentation] Eruption history and temporal change of magma systems of Chikurachki and Fuss volcanoes、western Paramushir Island、northern Kurile Islands (2011)
  • Author(s): Hasegawa Takeshi
  • Organizer: Kuril Biocomplexity Project (KBP) Synthesis Workshop
  • Place of Presentation: USA、Seattle
  • Year and Date: 2011-10-31
• [Presentation] (2011) Tephrostratigraphy and petrological study of Chikurachki and Fuss volcanoes, western Paramushir Island, northern Kurile Islands (2011)
  • 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
• [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
• [Remarks]
  • URL: http://petrolvolc.sci.ibaraki.ac.jp/
• [Remarks] 那珂川下流域に分布する大規模な火山性土石流堆積物の追跡調査
  • URL: http://petrolvolc.sci.ibaraki.ac.jp/report_nakagawa.html