Multi-faceted approaches for understanding local structures of silicate melts/fluids under pressure and temperature

2008 Fiscal Year Final Research Report

• Project/Area Number: 19340163
• 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: Okayama University
• Principal Investigator: KANZAKI Masami Okayama University, 地球物質科学研究センター, 教授 (90234153)
• Co-Investigator(Kenkyū-buntansha): SYUE Syanu 岡山大学, 地球物質科学研究センター, 准教授 (70362986)
• Project Period (FY): 2007 – 2008
• Keywords: メルト構造 / 顕微ラマン分光法 / NMR分光法 / 高圧その場測定 / ダイヤモンドアンビルセル / ケイ酸塩メルト / X線ラマン分光 / 局所構造

Research Abstract

地球及び惑星内部のマグマ等の流体の構造を解明するために本研究を行った. 核磁気分光法を駆使することにより含水アルミニウムケイ酸塩メルトへの水の溶解機構を解明した. また高圧装置を使ったその場実験により, 圧力および温度とともにメルト又はガラスの構造がどのように変化するかについて様々な分光法を用いて研究を行い, 配位数変化や構造種の分布, 水酸基の構造変化についてのより詳しい情報を得る事ができた.

Research Products

• [Journal Article] Viscosity behavior spanning four orders of magnitude in As-S melts under high pressure (2009)
  • Author(s): V.V. Brazhkin, M. Kanzaki, 他2名
  • Journal Title: Phys. Rev. Lett. 102 Pages: 115901
  • Peer Reviewed
• [Journal Article] X-ray Raman scattering for structural investiga-tion of silica/silicate minerals (2009)
  • Author(s): H. Fukui, M. Kanzaki, 他2名
  • Journal Title: Phys. Chem. Minerals 36 Pages: 171-181
  • Peer Reviewed
• [Journal Article] Elastic wave velocities and Raman shift of MORB glasses at high pressures-Comment (2008)
  • Author(s): M. Kanzaki
  • Journal Title: Journal of Mineralogical Petrological Sciences 103 Pages: 427-428
  • Peer Reviewed
• [Journal Article] Structure of hydrous aluminosilicate glasses along the diopside-anorthite join (2008)
  • Author(s): X. Xue and M. Kanzaki
  • Journal Title: a comprehensive one- and two-dimentional ^1H and ^<27>Al NMR study, Geochim. Cosmochim. Acta 72 Pages: 2331-2348
  • Peer Reviewed
• [Journal Article] Dense hydrous magnesium silicates, phase D and superhydrous B : New structural constraints from one- and two- dimensional ^<29>Si and^ 1H NMR (2008)
  • Author(s): X. Xue, M. Kanzaki, and A. Shatskiy
  • Journal Title: Am. Mineral 93 Pages: 1099-1111
  • Peer Reviewed
• [Journal Article] Coordination environment of silicon in silica glass up to 74 GPa : An X-ray Raman scattering study at the silicon L edge (2008)
  • Author(s): H. Fukui, M. Kanzaki, 他2名
  • Journal Title: Phys. Rev. B 78 Pages: 012203
• [Journal Article] High-Pressure delta-Al(OH)3 and delta-AlOOH Phases and Isostructural Hydroxides/ Oxyhydr-oxides (2007)
  • Author(s): X. Xue and M. Kanzaki
  • Journal Title: New Structural Insights from High-Resolu-tion ^1H and^< 27>Al NMR, Journal of Phy-sical Chemistry B 111 Pages: 13156-13166
  • Peer Reviewed
• [Journal Article] Nonviscous metallic liquid Se (2007)
  • Author(s): V.V.Brazhkin, K. Funakoshi, M. Kanzaki and Y. Katayama
  • Journal Title: Phys. Rev. Lett 99 Pages: 245901
  • Peer Reviewed
• [Journal Article] Second critical endpoint in the peridotite-H_2O system (2007)
  • Author(s): K. Mibe, M. Kanzaki, その他4名
  • Journal Title: J. Geophys. Res. 112, B03201 Pages: doi : 10.1029/2005JB004125
  • Peer Reviewed
• [Journal Article] Al coordi-nation and water speciation in hydrous aluminosilicate glasses : Direct evidence from high-resolution (2007)
  • Author(s): X. Xue and M. Kanzaki
  • Journal Title: heteronuclear^1H-^<27>Al correlation NMR, Solid State NMR 31 Pages: 10-27
  • Peer Reviewed
• [Presentation] phase Dの水素結合について : ラマン分光法による研究 (2008)
  • Author(s): 神崎正美・薛献宇
  • Organizer: 日本地球惑星科学連合2008年大会
  • Place of Presentation: 幕張(千葉)
  • Year and Date: 2008-05-25
• [Remarks]
  • URL: http://www.misasa.okayama-u.ac.jp/~masami/pukiwiki/