A study on the mechanism of shallow-level degassing of conduit magmas as a controlling factor of eruption styles

• Project/Area Number: 21340155
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Tohoku University
• Principal Investigator: NAKAMURA Michihiko 東北大学, 大学院・理学研究科, 教授 (70260528)
• Co-Investigator(Kenkyū-buntansha): KURITANI Takesi 大阪市立大学, 大学院・理学研究科, 准教 授 (80397900) ; YASUI Maya 日本大学, 文理学部, 准教授 (90287566)
• Co-Investigator(Renkei-kenkyūsha): OKUMURA Satoshi 東北大学, 大学院・理学研究科, 助教 (40532213) ; YOSHIA Takeyoshi 東北大学, 大学院・理学研究科, 名誉教授 (80004505)
• Project Period (FY): 2009 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2009: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
• Keywords: 火山 / 岩石 / 鉱物 / 地質学 / 火成岩 / マグマ / ブルカノ式噴火 / ガス溜り / 気泡形状緩和 / マグマの浸透率 / 爆発的噴火 / 脱ガス / 桜島火山 / CO2フラクシング / ナノライト / 黒曜岩 / 火山噴火 / 浅間火山 / 噴火様式 / メルト包有物 / 磁鉄鉱

Research Abstract

We examined the crystal size distribution (CSD) of ground crystals in the erupted materials of the 2011 Shinmoe-dake volcano. We found that magma residence time in the shallow conduit in the explosive subplinian phase is shorter than in the less-explosive vulcanian and lava dome phases. We also conducted textural relaxation experiments of andesitic pumices in shallow conduit conditions and clarified the vapor pressure dependence of the relaxation and bubble coagulation. We conclude that the textural relaxation enhances formation of “gas pockets" via compaction of shallow melt foam.

Research Products

• [Journal Article] Comparative study of proximal eruptive events in the large-scale eruptions of Sakurajima Volcano:the An-ei vs. Taisho eruption, Bull (2013)
  • Author(s): Yasui, M., et al
  • Journal Title: Volcanol.Soc.Japan Volume: VOL.58 Pages: 59-76
  • Peer Reviewed
• [Journal Article] Submitted to the special issue of Sakurajima Volcano, Bull (2013)
  • Author(s): Takahashi,M., Otsuka,T., Sako,H., Kawamata,H., Yasui,M., et al
  • Journal Title: Volcanol. Soc.Japan Volume: VOL.58 Pages: 17-42
  • Peer Reviewed
• [Journal Article] 浅間前掛火山プロキシマル火山地質学及び巡検案内書-浅間前掛火山黒豆河原周辺の歴史時代噴出物- (2013)
  • Author(s): 高橋正樹・安井真也
  • Journal Title: 火山 Volume: 58巻 Pages: 311-328
  • Peer Reviewed
• [Journal Article] Flux of volcanic CO2 emission estimated from melt inclusions and fluid transport modelling (2013)
  • Author(s): S. Yoshimura & M. Nakamura
  • Journal Title: Earth and Planetary Science Letters Volume: 361 Pages: 497-503
  • DOI: 10.1016/j.epsl.2012.11.020
  • Peer Reviewed
• [Journal Article] Comparative study of proximal eruptive events in the large-scale eruptions of Sakurajima Volcano: the An-ei vs. Taisho eruption. (2013)
  • Author(s): Yasui, M., Takahasshi, M., Shimada, J., Ishihara,K and Miki,D.
  • Journal Title: Submitted to the special issue of Sakurajima Volcano, Bull. Volcanol. Volume: 58 Pages: 59-76
  • Peer Reviewed
• [Journal Article] Temporal Variation for Magmatic Chemistry of the Sakurajima Volcano and Aira Caldera Region,Southern Kyushu, Southwest Japan since 61ka and Its Implications for the Evolution of MagmaChamber System. (2013)
  • Author(s): TAKAHASHI,M., OTSUKA,T., SAKO,H., KAWAMATA,H., YASUI,M., KANAMARU,T.,et al.
  • Journal Title: Submitted to the special issue of Sakurajima Volcano, Bull. Volcanol. Soc. Japan. Volume: 58 Pages: 17-42
  • Peer Reviewed
• [Journal Article] 浅間前掛火山プロキシマル火山地質学及び巡検案内書─浅間前掛火山黒豆河原周辺の歴史時代噴出物─ (2013)
  • Author(s): 高橋正樹・安井真也
  • Journal Title: 火山 Volume: 58 Pages: 311-328
  • Peer Reviewed
• [Journal Article] 烏帽子火山群噴出物の全岩化学組成ー分析データ222個の総括ー (2013)
  • Author(s): 高橋正樹・大塚匡・平川貴司・長井雅史・安井真也・荒牧重雄
  • Journal Title: 日本大学文理学部自然研究所研究紀要 Volume: 48 Pages: 111-140
  • Peer Reviewed
• [Journal Article] 浅間黒斑火山崩壊カルデラ壁北部仙人岩付近のプロキシマル火砕岩相ー牙溶岩グループの火山角礫岩・凝灰角礫岩および仙人溶岩グループの溶結火砕岩 (2013)
  • Author(s): 高橋正樹・市川寛海・金丸龍夫・安井真也・間瀬口輝浩
  • Journal Title: 日本大学文理学部自然研究所研究紀要 Volume: 48 Pages: 141-168
  • Peer Reviewed
• [Journal Article] Transition zone origin of potassic basalts from Wudalianchi volcano northeast China. (2013)
  • Author(s): Kuritani, T., Kimura, J.-I., Ohtani, E., Miyamoto, H. and Furuyama, K.
  • Journal Title: Lithos Volume: 156 Pages: 1-12
  • DOI: 10.1016/j.lithos.2012.10.010
  • Peer Reviewed
• [Journal Article] Water content of low-K tholeiitic basalt from Iwate Volcano, NE Japan Arc: implications for differentiation mechanism of frontal-arc basalt magmas (2013)
  • Author(s): Kuritani, T., Yoshida, T., Kimura, J.-I., Hirahara, Y. and Takahashi, T.
  • Journal Title: Mineralogy and Petrology Volume: in press Issue: 1 Pages: 1-11
  • DOI: 10.1007/s00710-013-0278-2
  • Peer Reviewed
• [Journal Article] Experimental constraints on permeable gas transport in crystalline silicic magmas (2012)
  • Author(s): Okumura S., Nakamura M., et al
  • Journal Title: Contributions to Mineralogy and Petrology Springer Volume: VOL.164 Issue: 3 Pages: 493-504
  • DOI: 10.1007/s00410-012-0750-8
  • Peer Reviewed
• [Journal Article] 放射光X線を用いた流動するマグマのその場観察:火山噴火の多様性の原因解明へ向けて (2012)
  • Author(s): 奥村聡・中村美千彦・上杉健太郎
  • Journal Title: 放射光 Volume: 25巻 Pages: 222-228
  • NAID: 10030494780
  • Peer Reviewed
• [Journal Article] Syn- eruptive desulfidation of pyrrhotite in the pumice of the Sakurajima 1914-15 eruption:Implication for potential magma ascent rate meter (2012)
  • Author(s): Matsumoto K. and Nakamura M.
  • Journal Title: Journal of Mineralogical and Petrological Sciences Volume: VOL.107 Pages: 206-211
  • Peer Reviewed
• [Journal Article] Flux of volcanic CO2 emission estimated from melt inclusions and fluid transport modeling (2012)
  • Author(s): Yoshimura, S. and Nakamura, M.
  • Journal Title: Earth and Planetary Science Letters Volume: VOL.361 Pages: 497-503
  • URL: http://dx.doi.org/10.1016/j.epsl.2012.11.020
  • Peer Reviewed
• [Journal Article] 安山岩質降下軽石と溶岩流の結晶破砕度-浅間火山と桜島火山の噴出物の場合- (2012)
  • Author(s): 安井真也
  • Journal Title: 火山 Volume: 57巻 Pages: 145-158
  • NAID: 110009579091
  • Peer Reviewed
• [Journal Article] 放射光Ｘ線を用いた流動するマグマのその場観察：火山噴火の多様性の原因解明へ向けて (2012)
  • Author(s): 奥村聡・中村美千彦・上杉健太郎
  • Journal Title: 放射光 Volume: 25 Pages: 222-228
  • NAID: 10030494780
  • Peer Reviewed
• [Journal Article] Syn-eruptive desulfidation of pyrrhotite in the pumice of the Sakurajima 1914-15 eruption:Implication for potential magma ascent rate meter (2012)
  • Author(s): Matsumoto K. and Nakamura M.
  • Journal Title: Journal of Mineralogical and Petrological Sciences Volume: 107 Pages: 206-211
  • Peer Reviewed
• [Journal Article] 安山岩質降下軽石と溶岩流の結晶破砕度 ─浅間火山と桜島火山の噴出物の場合─ (2012)
  • Author(s): 安井真也
  • Journal Title: 火山 Volume: 57 Pages: 145-158
  • NAID: 110009579091
  • Peer Reviewed
• [Journal Article] 浅間火山天明噴火の鎌原火砕流/岩屑なだれ堆積物の諸性質 (2012)
  • Author(s): 田中栄史・安井真也・荒牧重雄
  • Journal Title: 日本大学文理学部自然科学研究所研究紀要 Volume: 47(印刷中)
  • NAID: 40019302926
• [Journal Article] 火砕堆積物の解析から探る 火山噴火のダイナミクス (2011)
  • Author(s): 中村 美千彦
  • Journal Title: 地質学雑誌 Volume: 117巻 Pages: 329-343
  • NAID: 130001271449
  • Peer Reviewed
• [Journal Article] 火砕堆積物の解析から探る火山噴火のダイナミクス (2011)
  • Author(s): 中村美千彦
  • Journal Title: 地質学雑誌 Volume: 117 Pages: 329-343
  • NAID: 130001271449
  • Peer Reviewed
• [Journal Article] 桜島火山および姶良カルデラ噴出物の全岩化学組成 (2011)
  • Author(s): 高橋正樹・大塚匡・川俣博史・迫寿・安井真也・金丸龍夫・大槻明・島田純・厚地貴文・梅澤孝典・白石哲郎・市来祐美・佐竹紳・小林哲夫・石原和弘・味喜大介
  • Journal Title: 日本大学文理学部自然科学研究所研究紀要 Volume: 46 Pages: 133-200
• [Journal Article] Fracture healing in a magma: An experimental approach and implications forvolcanic seismicity and degassing (2010)
  • Author(s): Yoshimura, S., M. Nakamura
  • Journal Title: Jour. Geophys. Res Volume: VOL.115 Issue: B9
  • DOI: 10.1029/2009jb000834
  • Peer Reviewed
• [Journal Article] Shear deformation experiments on vesicular rhyolite: Implications for brittle fracturing, degassing, and compaction of magmas in volcanic conduits (2010)
  • Author(s): Okumura, S., M. Nakamura, T. Nakano, K. Uesugi, A. Tsuchiyama
  • Journal Title: Jour. Geophys. Res Volume: VOL.115 Issue: B6 Pages: 6201-6201
  • DOI: 10.1029/2009jb006904
  • Peer Reviewed
• [Journal Article] Chemically driven growth and resorption of bubbles in a multivolatile magmaticsystem (2010)
  • Author(s): Yoshimura, S., M. Nakamura
  • Journal Title: Chemical Geology Volume: VOL.276 Issue: 1-2 Pages: 18-28
  • DOI: 10.1016/j.chemgeo.2010.05.010
  • Peer Reviewed
• [Journal Article] 桜島火山大正噴火 の準備過程-磁鉄鉱化学組成からの制約- (2010)
  • Author(s): 中村美 千彦・田村翔・伊藤嘉紀・ 奥村 聡・ 井口正人・味喜大介
  • Journal Title: 京都大学防災研究所年報 Volume: 53B巻 Pages: 261-267
  • NAID: 120002515151
• [Journal Article] Chemically driven growth and resorption of bubbles in a multivolatile magmatic system (2010)
  • Author(s): Yoshimura, S., M.Nakamura
  • Journal Title: Chemical Geology Volume: 276 Pages: 18-28
  • Peer Reviewed
• [Journal Article] 桜島火山大正噴火の準備過程-磁鉄鉱化学組成からの制約- (2010)
  • Author(s): 中村美千彦, 田村翔, 伊藤嘉紀, 奥村聡, 井口正人, 味喜大介
  • Journal Title: 京都大学防災研究所年報 Volume: 53B Pages: 261-267
  • NAID: 120002515151
• [Journal Article] Geochemical evolution of historical lavas from Askja Volcano, Iceland : implications for mechanisms and timescales of magmatic differentiation (2010)
  • Author(s): Kuritani, T., Yokoyama, T., Kitagawa, H., Kobayashi, K.Nakamura, E.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 75 Pages: 570-587
  • Peer Reviewed
• [Journal Article] Internal differentiation of Kutsugata lava flow from Rishiri Volcano, Japan : processes and timescales of segregation structures' formation (2010)
  • Author(s): Kuritani, T., Yoshida, T., Nagahashi, Y.
  • Journal Title: Journal of Volcanology and Geothermal Research Volume: 195 Pages: 57-68
  • Peer Reviewed
• [Journal Article] Effect of grain growth on cation exchange between dunite and fluid : implications for chemical homogenization in the upper mantle (2010)
  • Author(s): Ohuchi, T., Nakamura, M, Michibayashi, K
  • Journal Title: Contributions to Mineralogy and Petrology doi : 10.1007/s00410-009-0481-7(印刷中)
  • NAID: 120002381542
  • Peer Reviewed
• [Journal Article] Shear deformation experiments on vesicular rhyolite : Implications for brittle fracturing, degassing, and compaction of magmas in volcanic conduits (2010)
  • Author(s): Okumura, S., Nakamura, M., Uesugi, K., Nakano, T., Tsuchiyama, A.
  • Journal Title: Journal of Geophysical Research doi : 10.1029/2009JB006904(印刷中)
  • Peer Reviewed
• [Journal Article] 浅間火山1783年噴火と1108年噴火の本質物質の見かけ密度と噴火機構 (2010)
  • Author(s): 加藤史恵・安井真也・高橋正樹
  • Journal Title: 日本大学文理学部自然科学研究所 研究紀要 45 Pages: 255-263
  • NAID: 40017100193
• [Journal Article] deformation may inducenon-explosive volcanism via degassing through bubble networks (2009)
  • Author(s): Okumura, S., Nakamura, M., Takeuchi, S., Tsuchiyama, A., Nakano, T., Uesugi, K, Magma
  • Journal Title: Earth and Planetary Science Letters Volume: VOL.281 Issue: 3-4 Pages: 267-274
  • DOI: 10.1016/j.epsl.2009.02.036
  • Peer Reviewed
• [Journal Article] 結晶破 砕度からみた溶岩ドーム噴出プロセス-- 榛名火山・二ッ岳と霧島火山・硫黄山お よび箱根火山・二子山の比較-- (2009)
  • Author(s): 安井真 也・萩原秀美・高橋正樹
  • Journal Title: 地球. プロキシマル火山地質学の新展開 Volume: 31巻 Pages: 29-34
• [Journal Article] The relative roles of boundary layer fractionation andhomogeneous fractionation in cooling basaltic magma chambers (2009)
  • Author(s): Kuritani, T.
  • Journal Title: Lithos Volume: VOL.110 Issue: 1-4 Pages: 247-261
  • DOI: 10.1016/j.lithos.2008.12.012
  • Peer Reviewed
• [Journal Article] Magma deformation may induce non-explosive volcanism via degaasing through bubble networks (2009)
  • Author(s): Okumura, S., Nakamura, M., Takeuchi, S., Tsuchiyama, A., Nakano T., Uesugi, K.
  • Journal Title: Earth and Planetary Science Letters 281 Pages: 267-274
  • Peer Reviewed
• [Journal Article] 結晶破砕度からみた溶岩ドーム噴出プロセス--榛名火山・二ッ岳と霧島火山・硫黄山および箱根火山・二子山の比較-- (2009)
  • Author(s): 安井真也・萩原秀美・高橋正樹
  • Journal Title: 地球.プロキシマル火山地質学の新展開 31 Pages: 29-34
• [Journal Article] The relative roles of boundary layer fractionation and homogeneous fractionation in cooling basaltic magma chambers (2009)
  • Author(s): Kuritani, T.
  • Journal Title: Lithos 110 Pages: 247-261
  • Peer Reviewed
• [Journal Article] Intraplate magmatism related to deceleration of upwelling asthenospheric mantle : implications from the Changbaishan shield basalts, northeast China (2009)
  • Author(s): Kuritani, T., Kimura, J.-I., Miyamoto, T., Wei, H., Shimano, T., Maeno. F., Jin, X., Taniguchi, H.
  • Journal Title: Lithos 112 Pages: 247-258
  • Peer Reviewed
• [Presentation] 噴火に伴う硫化物の高速酸化反応:桜島火山の例 (2013)
  • Author(s): 松本恵子・中村美千彦・味喜大介・井口正人
  • Organizer: 地殻流体研究会2013
  • Place of Presentation: 静岡県伊豆市ラフォーレ修善寺
  • Year and Date: 2013-03-03
• [Presentation] 一ノ目潟マールにおける下部地殻捕獲岩の輸送プロセス (2013)
  • Author(s): 柳田泰宏・中村美千彦・吉田武義
  • Organizer: 地殻流体研究会2013
  • Place of Presentation: 静岡県伊豆市ラフォーレ修善寺
  • Year and Date: 2013-03-03
• [Presentation] 表面張力によるメルトフォーム組織緩和:粘性・比表面積・斑晶量の効果 (2012)
  • Author(s): 大槻静香・中村美千彦
  • Organizer: 日本火山学会
  • Place of Presentation: 長野県御代田町
  • Year and Date: 2012-10-16
• [Presentation] 桜島大正噴火軽石に含まれる磁硫鉄鉱の脱硫化反応:マグマの酸化速度計の開発にむけて (2012)
  • Author(s): 松本恵子・中村美千彦
  • Organizer: 日本火山学会
  • Place of Presentation: 長野県御代田町
  • Year and Date: 2012-10-15
• [Presentation] 2011年噴火噴出物中にみられるナノライトの晶出過程 (2012)
  • Author(s): 無盡真弓・中村美千彦・奥村聡、新燃岳
  • Organizer: 日本火山学会
  • Place of Presentation: 長野県御代田町
  • Year and Date: 2012-10-14
• [Presentation] 謎の多い浅間前掛火山の天明 噴火 (2012)
  • Author(s): 安井 真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 長野県御代田町のエコールみよ
  • Year and Date: 2012-10-14
• [Presentation] Textural relaxation of melt foam due to surface tension: Implications for the mechanismof vulcanian Eruptions, GCOE symposium2012 (2012)
  • Author(s): Otsuki, S., Nakamura, M
  • Organizer: Achievements of GCOE Program for Earth and Planetary Dynamics and the Future Perspective
  • Place of Presentation: Sendai,Japan
  • Year and Date: 2012-09-26
• [Presentation] Syn- eruptive desulfidation of pyrrhotite in pumice of the Sakurajima Taisho eruption: Implication for potential magma oxidation rate meter (2012)
  • Author(s): Matsumoto, K., Nakamura, M
  • Organizer: GCOE symposium 2012 "Achievements of GCOE Program for Earth and Planetary Dynamics and the Future Perspective
  • Place of Presentation: Sendai,Japan
  • Year and Date: 2012-09-25
• [Presentation] Nanolites crystallization in the 2011 eruption of the Shinmoedake (2012)
  • Author(s): Mujin, M., Nakamura, M. Okumura, S.
  • Organizer: Kirishima Volcanic group, GCOE symposium 2012 "Achievements of GCOE Program for Earth and Planetary Dynamics and the Future Perspective
  • Place of Presentation: Sendai
  • Year and Date: 2012-09-25
• [Presentation] 花崗岩質メルトとCO2流体の間の炭素同位体分別 (2012)
  • Author(s): 吉村俊平・中村美千彦・圦本尚義
  • Organizer: 日本鉱物科学会
  • Place of Presentation: 京都大学
  • Year and Date: 2012-09-19
• [Presentation] Textural Relaxation of Melt Foam:Implications for Vulcanian Explosions (2012)
  • Author(s): Nakamura M., OTSUKI S.
  • Organizer: AOGS - AGU (WPGM)
  • Place of Presentation: Sentosa Island, Singapore
  • Year and Date: 2012-08-17
• [Presentation] 新燃岳2011年噴火噴出物の低水蒸気圧下での融解実験 (2012)
  • Author(s): 無盡真弓・中村美千彦・奥村聡
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2012-05-24
• [Presentation] 桜島大正噴火噴出物中に産する磁硫鉄鉱の酸化組織とその成因 (2012)
  • Author(s): 松本恵子・中村美千彦
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2012-05-24
• [Presentation] 鉱物化学組成と揮発性成分から見た桜島火山大正噴火の浅部マグマ供給系 (2012)
  • Author(s): 佐藤智紀・中村美千彦・奥村聡・味喜大介・井口正人
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2012-05-24
• [Presentation] 爆発的噴火に伴う磁硫鉄鉱の脱硫化反応:マグマの上昇速度計への応用に向けて (2012)
  • Author(s): 松本恵子・中村美千彦
  • Organizer: 日本鉱物科学会
  • Place of Presentation: 京都大学
  • Year and Date: 2012-05-20
• [Presentation] 表面張力によるメルトフォーム組織緩和実験 (2012)
  • Author(s): 大槻静香・中村美千彦
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2012-05-20
• [Presentation] Coupled effect of magma degassing and rheology on silicic volcanism (2012)
  • Author(s): OKUMURA S., Nakamura M., Uesugi K., Nakano T
  • Organizer: EGU(招待講演)
  • Place of Presentation: Vienna, Austria
  • Year and Date: 2012-04-23
• [Presentation] Syn-eruptive desulfidation of pyrrhotite in pumice of the Sakurajima Taisho eruption: Implication for potential magma oxidation rate meter (2012)
  • Author(s): Matsumoto, K., Nakamura, M.
  • Organizer: GCOE symposium 2012 "Achievements of GCOE Program for Earth and Planetary Dynamics and the Future Perspective"
  • Place of Presentation: Sendai,Japan
• [Presentation] Nanolites crystallization in the 2011 eruption of the Shinmoedake, Kirishima Volcanic group (2012)
  • Author(s): Mujin, M., Nakamura, M., Okumura, S.
  • Organizer: GCOE symposium 2012 "Achievements of GCOE Program for Earth and Planetary Dynamics and the Future Perspective"
  • Place of Presentation: Sendai,Japan
• [Presentation] Textural relaxation of melt foam due to surface tension: Implications for the mechanism of vulcanian eruptions (2012)
  • Author(s): Otsuki, S., Nakamura, M.
  • Organizer: GCOE symposium 2012 "Achievements of GCOE Program for Earth and Planetary Dynamics and the Future Perspective"
  • Place of Presentation: Sendai,Japan
• [Presentation] 黒曜石薄層の 形成メカニズム (2011)
  • Author(s): 吉村俊平・ 中村美千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 旭川
  • Year and Date: 2011-10-02
• [Presentation] 桜島火山大正溶岩にみられる集合斑晶の成因 (2011)
  • Author(s): 西尾光・高橋正樹・安井真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 旭川
  • Year and Date: 2011-10-02
• [Presentation] 黒曜石薄層の形成メカニズム (2011)
  • Author(s): 吉村俊平・中村美千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 旭川
  • Year and Date: 2011-10-02
• [Presentation] Nanolites in volcanic ash: a clue to understand gas pocket processes in the on-going Sakurajima eruption (Invited) (2011)
  • Author(s): M. Nakamura, S. Otsuki, D. Miki, M. Iguchi
  • Organizer: Japan Geoscience Union Meeting 2011
  • Place of Presentation: 千葉
  • Year and Date: 2011-05-25
• [Presentation] Nanolites in volcanic ash : a clue to understand gas pocket processes in the on-going Sakurajima eruption (2011)
  • Author(s): M.Nakamura, S.Otsuki, D.Miki, M.Iguchi
  • Organizer: Japan Geoscience Union Meeting 2011
  • Place of Presentation: 千葉(Invited)
  • Year and Date: 2011-05-25
• [Presentation] 発泡したマグマの流動・変形その場観察 (2011)
  • Author(s): 奥村聡・中村美千彦・上杉健太朗・中野司・土山明
  • Organizer: 日本地球惑星科学連合大会2011
  • Place of Presentation: 千葉
  • Year and Date: 2011-05-24
• [Presentation] 地表付近でのメルトフォームの崩壊メカニズム:ブルカノ式噴火機構への意義 (2011)
  • Author(s): 大槻静香・中村美千彦
  • Organizer: 日本地球惑星科学連合大会2011
  • Place of Presentation: 千葉
  • Year and Date: 2011-05-24
• [Presentation] Evolution of microstructure of bubbles and gas permeability in shearedrhyolite (INVITED) (2010)
  • Author(s): Okumura,S., M.Nakamura, T. Fujioka, A. Tsuchiyama, S. Takeuchi, T. Nakano, K. Uesugi
  • Organizer: American Gophysical Union Fall Meeting
  • Place of Presentation: San Francisco,USA
  • Year and Date: 2010-12-17
• [Presentation] Voluminous juvenile lithic fragments in the pumice-fall deposit of the 1108 eruption of Asama volcano: Evidence of repeated compaction and fragmentation in the shallow conduit (2010)
  • Author(s): Nakamura,M., T.,Kichise, M. Yasui, Y.Nagahashi, T., Y
  • Organizer: American Gophysical Union Fall Meeting
  • Place of Presentation: San Francisco,USA
  • Year and Date: 2010-12-13
• [Presentation] マグマ破断面のヒーリング実験による周期性火山性地震の発生機構の解明 (2010)
  • Author(s): 吉村俊平・中村美千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2010-10-11
• [Presentation] 桜島火山歴史時代の大規模噴火の火口近傍プロセス-安永噴火と大正噴火の比較- (2010)
  • Author(s): 安井真也・高橋正樹・島田純,味喜大介・石原和弘
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2010-10-11
• [Presentation] 浅間前掛火山天明・天仁噴出物の斑晶斜方輝石の組成累帯構造とマグマ溜りプロセ (2010)
  • Author(s): 市川美弥・高橋正樹・安井真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2010-10-11
• [Presentation] 桜島から噴出している火山礫のミクロ/ナノ構造:"ガス溜まり"の実体とそのブルカノ式噴火機構への意義 (2010)
  • Author(s): 中村美千彦・大槻静香・味喜大介・井口正人
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2010-10-10
• [Presentation] 那須茶臼岳火山にみられる火砕成溶岩 (2010)
  • Author(s): 南雲旭・高橋正樹・安井真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2010-10-10
• [Presentation] 噴火メカニズム系統樹作成の試み:噴火様式の分岐点の整理と理解に 向けた叩き台として (2010)
  • Author(s): 中村美 千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2010-10-09
• [Presentation] 浅間前掛火山十二世紀大規模噴火の噴火推移の再検討 (2010)
  • Author(s): 高橋正樹・安井真也・黒澤貴之
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都
  • Year and Date: 2010-10-09
• [Presentation] Bubble growth and resorption driven by chemicalinteraction in the H2O-CO2- rhyolite system (2010)
  • Author(s): Yoshimura, S., Nakamura, M.
  • Organizer: Tohoku University G-COE symposium 2010: Dynamic Earth and Heterogeneous Structure
  • Place of Presentation: Sendai
  • Year and Date: 2010-07-14
• [Presentation] Bifurcations of eruption processes: An overview with a case study of the Asama volcano (INVITED) (2010)
  • Author(s): Nakamura, M.
  • Organizer: Tohoku University G-COE symposium 2010: Dynamic Earth and Heterogeneous Structure
  • Place of Presentation: Sendai
  • Year and Date: 2010-07-13
• [Presentation] 流動に伴う発泡したマグマの密度変化:変形実験からの制約 (2010)
  • Author(s): 中村美千彦
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-26
• [Presentation] 浅間前掛火山における爆発性の分岐条件:1108年噴火の降下軽石層に含まれる石質岩片からの制約 (2010)
  • Author(s): 吉瀬毅・中村美千彦・安井真也
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-24
• [Presentation] 桜島火山大正噴火のマグマの揮発性成分量と噴火ダイナミクス (2010)
  • Author(s): 佐藤智紀・中村美千彦・奥村聡,ほか
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-24
• [Presentation] 気泡が存 在するマグマ体における選択的結晶分化作用:利尻火山・沓形溶岩流 (2010)
  • Author(s): 栗谷豪・吉田武義・長橋良隆
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-23
• [Presentation] 浅間黒斑火山仙人溶岩グループにみ られるアグルチネート (2010)
  • Author(s): 高橋正樹・安井真也・間瀬口輝浩・金丸 龍夫
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-23
• [Presentation] 浅間・前掛火山における噴火様式の分岐条件 (2010)
  • Author(s): 中村美千彦・吉瀬毅・安井真也
  • Organizer: 「地震及び火山噴火予知のための観測研究計画」成果報告シンポジウム
  • Place of Presentation: 東京
  • Year and Date: 2010-03-03
• [Presentation] 桜島火山歴史時代噴火の開 始条件に関する岩石学的制約 (2010)
  • Author(s): 中村美 千彦・伊藤嘉紀・田村翔・井口正 人・味喜大介
  • Organizer: 平成21年度 京都大学防災研究所研究発表講演会
  • Place of Presentation: 京都
  • Year and Date: 2010-02-23
• [Presentation] Experimental constraints on the permeable gas transport in ascending magmas (INVITED) (2010)
  • Author(s): Okumura, S., Nakamura, M., Nakano,T.
  • Organizer: Tohoku University G-COE symposium 2010: Dynamic Earth and Heterogeneous Structure
  • Place of Presentation: Sendai
• [Presentation] Bifurcations of eruption processes : An overview with a case study of the Asama volcano (2010)
  • Author(s): Nakamura, M.
  • Organizer: Tohoku University G-COE symposium 2010 : Dynamic Earth and Heterogeneous Structure
  • Place of Presentation: Sendai(INVITED)
• [Presentation] Experimental constraints on the permeable gas transport in ascending magmas (2010)
  • Author(s): Okumura, S., Nakamura, M., Nakano, T.
  • Organizer: Tohoku University G-COE symposium 2010 : Dynamic Earth and Heterogeneous Structure
  • Place of Presentation: Sendai(INVITED)
• [Presentation] Bubble growth and resorption driven by chemical interaction in the H2O-CO2-rhyolite system (2010)
  • Author(s): Yoshimura, S., Nakamura, M.
  • Organizer: Tohoku University G-COE symposium 2010 : Dynamic Earth and Heterogeneous Structure
  • Place of Presentation: Sendai
• [Presentation] Voluminous juvenile lithic fragments in the pumice-fall deposit of the 1108 eruption of Asama volcano : Evidence of repeated compaction and fragmentation in the shallow conduit (2010)
  • Author(s): Nakamura, M., T., Kichise, M.Yasui, Y.Nagahashi, T., Y
  • Organizer: American Gophysical Union Fall Meeting
  • Place of Presentation: San Francisco USA
• [Presentation] Evolution of microstructure of bubbles and gas permeability in sheared rhyolite (2010)
  • Author(s): Okumura, S., M.Nakamura, T.Fujioka, A.Tsuchiyama, S.Takeuchi, T.Nakano, K.Uesugi
  • Organizer: American Gophysical Union Fall Meeting
  • Place of Presentation: San Francisco USA(INVITED)
• [Presentation] 噴火メカニズム系統樹作成の試み:噴火様式の分岐点の整理と理解に向けた叩き台として (2010)
  • Author(s): 中村美千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都市
• [Presentation] 桜島から噴出している火山礫のミクロ/ナノ構造:"ガス溜まり"の実体とそのブルカノ式噴火機構への意義 (2010)
  • Author(s): 中村美千彦・大槻静香・味喜大介・井口正人
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都市
• [Presentation] マグマ破断面のヒーリング実験による周期性火山性地震の発生機構の解明 (2010)
  • Author(s): 吉村俊平・中村美千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都市
• [Presentation] 流動に伴う発泡したマグマの密度変化:変形実験からの制約 (2010)
  • Author(s): 中村美千彦
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張
• [Presentation] 浅間前掛火山における爆発性の分岐条件:1108年噴火の降下軽石層に含まれる石質岩片からの制約 (2010)
  • Author(s): 中村美千彦
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張
• [Presentation] 桜島火山大正噴火のマグマの揮発性成分量と噴火ダイナミクス (2010)
  • Author(s): 中村美千彦
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張
• [Presentation] 中国北東部・大陸内部火山におけるマグマ生成条件 (2010)
  • Author(s): 栗谷豪
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張
• [Presentation] スラブ由来超臨界流体によるOsの輸送:利尻火山・アルカリ玄武岩からの制約 (2010)
  • Author(s): 栗谷豪
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張
• [Presentation] 気泡が存在するマグマ体における選択的結晶分化作用:利尻火山・沓形溶岩流 (2010)
  • Author(s): 栗谷豪
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張
• [Presentation] 浅間前掛火山十二世紀大規模噴火の噴火推移の再検討 (2010)
  • Author(s): 高橋正樹・安井真也・黒澤貴之
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都市
• [Presentation] 那須茶臼岳火山にみられる火砕成溶岩 (2010)
  • Author(s): 南雲旭・高橋正樹・安井真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都市
• [Presentation] 桜島火山歴史時代の大規模噴火の火口近傍プロセス-安永噴火と大正噴火の比較- (2010)
  • Author(s): 安井真也・高橋正樹・島田純, 味喜大介・石原和弘
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都市
• [Presentation] 浅間前掛火山天明・天仁噴出物の斑晶斜方輝石の組成累帯構造とマグマ溜りプロセス (2010)
  • Author(s): 市川美弥・高橋正樹・安井真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 京都市
• [Presentation] 浅間黒斑火山仙人溶岩グループにみられるアグルチネート (2010)
  • Author(s): 安井真也
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 幕張
• [Presentation] 桜島火山歴史時代噴火の開始条件に関する岩石学的制約 (2010)
  • Author(s): 中村美千彦・伊藤嘉紀・田村翔・井口正人・味喜大介
  • Organizer: 平成21年度京都大学防災研究所研究発表講演会
  • Place of Presentation: 京都
• [Presentation] An experimental study on aqueous fluid connectivity in amphibolitic lower crust (2009)
  • Author(s): Abe, M., Nakamura, M.
  • Organizer: Americal Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2009-12-17
• [Presentation] A chromatographic simulation of CO_2 flushing in magmatic systems (Invited) (2009)
  • Author(s): Yoshimura, S., Nakamura, M.
  • Organizer: Americal Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2009-12-15
• [Presentation] Permeability and pore-connectivity variation of pumices from a single pyroclastic flow eruption: Implications for partial fragmentation (2009)
  • Author(s): Nakamura,M., Otaki,K., Takeuchi, S
  • Organizer: AmericalGeophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2009-12-14
• [Presentation] Shear deformation experiments on vesicular rhyolite: Implications for magma fracturing, degassing, and compaction of magma in volcanic conduits (2009)
  • Author(s): Okumura,S., Nakamura, M., Nakano, T., Uesugi, K., Tsuchiyama, A.
  • Organizer: AmericalGeophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2009-12-14
• [Presentation] 反応輸送系モデルによるマグマ中CO2ガスフラッシング機構の解明 (2009)
  • Author(s): 吉村俊平・中村美千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 小田原
  • Year and Date: 2009-10-12
• [Presentation] 鉄チタン酸化鉱物から見るマグマ溜まりの熱史と均質性:桜島火山歴史時代噴火への応用 (2009)
  • Author(s): 中村美千彦・伊藤嘉紀・田村翔・井口正人・味喜大介
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 小田原
  • Year and Date: 2009-10-11
• [Presentation] 発泡し たマグマの脆性破壊実験:温度・歪み量の 効果 (2009)
  • Author(s): 藤岡拓真・奥村聡・中村美千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 小田原
  • Year and Date: 2009-10-10
• [Presentation] Permeabihty and pore-connectivity variation of pumices from a single pyroclastic flow eruption : Implications for partial fragmentation (2009)
  • Author(s): Nakamura, M., Otaki, K., Takeuchi, S.
  • Organizer: Americal Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] A chromatographic simulation of CO_2 flushing in magmatic systems (2009)
  • Author(s): Yoshimura, S., Nakamura, M.(Invited)
  • Organizer: Americal Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] Shear deformation experiments on vesicular rhyolite : Implications for magma fracturing, degassing, and compaction of magma in volcanic conduits (2009)
  • Author(s): Okumura, S., Nakamura, M., Nakano, T., Uesugi, K., Tsuchiyama, A.
  • Organizer: Americal Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] 発泡したマグマの脆性破壊実験:温度・歪み量の効果 (2009)
  • Author(s): 藤岡拓真・奥村聡・中村美千彦
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 小田原
• [Presentation] 鉄チタン酸化鉱物かきら見るマグマ溜まりの熱史と均質性:桜島火山歴史時代噴火への応用 (2009)
  • Author(s): 中村美千彦・伊藤嘉紀・田村翔・井口正人・味喜大介
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 小田原
• [Presentation] 中国北東部・白頭山地域の台地玄武岩マグマの成因 (2009)
  • Author(s): 栗谷豪, 木村純一, 宮本毅, 魏海泉, 嶋野岳人, 前野深, 金旭, 谷口宏充
  • Organizer: 日本鉱物科学会2009年年会
  • Place of Presentation: 札幌
• [Presentation] Water content in intraplate basalt magmas from the Longgnagarea, NE China (2009)
  • Author(s): Mizobuchi, F., Kuritani, T., Yoshida, T., Miyamoto, T., Nagahaghi Y., Taniguchi, H.
  • Organizer: American Geophysical Union 2009 Fall Meeting
  • Place of Presentation: San Francisco, USA
• [Presentation] 火山灰粒子からみた浅間・仏岩火山クライマックス噴火の噴火様式の問題点 (2009)
  • Author(s): 安井真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 小田原
• [Presentation] 浅間前掛火山天明・天仁噴出物中の斑晶斜方輝石の組成累帯構造について (2009)
  • Author(s): 市川美弥・高橋正樹・安井真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 小田原
• [Presentation] 爆発的噴火に伴う磁硫鉄鉱の脱硫化反応：マグマの上昇速度計への応用に向けて
  • Author(s): 松本恵子・中村美千彦
  • Organizer: 日本鉱物科学会
  • Place of Presentation: 京都大学
• [Presentation] 新燃岳2011年噴火噴出物中にみられるナノライトの晶出過程
  • Author(s): 無盡真弓・中村美千彦・奥村聡
  • Organizer: 日本火山学会
  • Place of Presentation: 長野県御代田町
• [Presentation] 桜島大正噴火軽石に含まれる磁硫鉄鉱の脱硫化反応：マグマの酸化速度計の開発にむけて
  • Author(s): 松本恵子・中村美千彦
  • Organizer: 日本火山学会
  • Place of Presentation: 長野県御代田町
• [Presentation] 表面張力によるメルトフォーム組織緩和：粘性・比表面積・斑晶量の効果
  • Author(s): 大槻静香・中村美千彦
  • Organizer: 日本火山学会
  • Place of Presentation: 長野県御代田町
• [Presentation] 噴火に伴う硫化物の高速酸化反応：桜島火山の例
  • Author(s): 松本恵子・中村美千彦・味喜大介・井口正人
  • Organizer: 地殻流体研究会2013
  • Place of Presentation: 静岡県伊豆市ラフォーレ修善寺
• [Presentation] Coupled effect of magma degassing and rheology on silicic volcanism
  • Author(s): Okumura S., Nakamura M., Uesugi K., Nakano T.
  • Organizer: EGU
  • Place of Presentation: Vienna, Austria
  • Invited
• [Presentation] Textural Relaxation of Melt Foam:Implications for Vulcanian Explosions
  • Author(s): Nakamura M., OTSUKI S.
  • Organizer: AOGS－AGU (WPGM)
  • Place of Presentation: Sentosa Island, Singapore
• [Presentation] 謎の多い浅間前掛火山の天明噴火
  • Author(s): 安井真也
  • Organizer: 日本火山学会秋季大会
  • Place of Presentation: 長野県御代田町のエコールみよた
• [Presentation] Differentiation mechanism of frontal-arc basalt magmas
  • Author(s): Kuritani, T., Yoshida, T., Kimura, J.-I., Hirahara, Y. and Takahashi,T.
  • Organizer: European Geosciences Union General Assembly
  • Place of Presentation: Austria Center, Vienna
  • Invited
• [Presentation] 中国北東部・五大連池火山の玄武岩の起源
  • Author(s): 栗谷豪・木村純一・大谷栄治・宮本英昭・古山勝彦
  • Organizer: 日本鉱物科学会
  • Place of Presentation: 茨城大学
• [Presentation] Transition zone origin of potassic basalts from Wudalianchi volcano,northeast China
  • Author(s): Kuritani, T., Kimura, J.-I., Ohtani, E., Miyamoto, H. and Furuyama, K.
  • Organizer: American Geophysical Union, Fall Meeting
  • Place of Presentation: San Francisco,USA
• [Presentation] 東北日本弧に産する第 四紀火山岩類のHf同位体比組成の空間分布
  • Author(s): 平原由香・高橋俊郎・宮崎隆・常青・仙田量子・吉田武義・伴雅雄・栗谷豪・藤縄明彦・大場司・林信太郎・木村純一
  • Organizer: 地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ
• [Presentation] SELENE-2の着陸地点評価
  • Author(s): 佐伯和人・荒井朋子・荒木博志・石原吉明・大竹真紀子・唐牛譲・小林直樹・春山純一・杉原孝充・本田親寿・佐藤広幸・武田弘・諸田智克・ 栗谷豪・三谷烈史・大嶽久志・田中智
  • Organizer: 日本惑星科学会秋季講演会
  • Place of Presentation: 神戸大学統合研究拠点コンベンションホール