Hiraga Lab, Division of Earth and Planetary Materials Science, Earthquake Research Institute,The University of Tokyo

本研究室では、地震研究所の共同利用研究制度「物質科学研究推進のための高品質鉱物多結晶体合成とその配布」を利用して、地球内部物性測定用の種々の合成鉱物粉末や鉱物多結晶体の配布を行っています。

試料配布及び作成のご相談を受け付けています。

試料

左から(1) 合成鉄無オリビン(Mg2SiO4) 粉末 (2)鉄無しオリビン多結晶体の微構造 (3)試料外観 (様々な大きさや形状が可能)

• 共同利用参加グループ
  北海道大学、東北大、物質・材料研究機構、東大、横浜国立大学、静岡大学、岡山大学、愛媛大学、高知コアセンター、広島大学、九州大学、ミネソタ大（アメリカ）、MIT（アメリカ）、Prinston大（アメリカ）、バイロイト大（ドイツ）、モンペリエ大（フランス）、Imperial college London（イギリス）、中国科学院 地質・地球物理研究所（中国）、ベルリン大学（ドイツ） 、オルレアン大学（フランス）、20拠点
• これまでの研究成果（全て共同利用への謝辞あり）
  一覧はこちら

  (35) Yabe K, Koizumi S, Hiraga T (2023) Diffusion creep characteristics of anorthite revealed by uniaxial and pure shear deformation experiments. Journal of Geophysical Research: Solid Earth, e2022JB024752.
  (34) Wang L, Liu Z, Koizumi S, Ballaran TB, Katsura T (2023) Aluminum components in bridgmanite coexisting with corundum and CF-phase with temperature, Journal of Geophysical Research: Solid Earth, DOI:10.1029/2022JB025739
  (33) Okamoto A, Hiraga T (2022) A common diffusional mechanism for creep and grain growth in polymineralic rocks: Experiments. Journal of Geophysical Research: Solid Earth, 127 (9), e2022JB024638
  (32) Kim N, Ando A, Yabe K, Hiraga T (2022) Olivine morphology and fabric during diffusion creep: Pure shear experiments. Journal of Geophysical Research: Solid Earth, 127 (5), e2021JB023613.
  (31) Fukuda J, Muto J, Koizumi S, Sawa S, Nagahama H (2022) Enhancement of ductile deformation in polycrystalline anorthite due to the addition of water. Journal of Structural Geology,156, 104547.
  (30) Samaee V, Cordier P, Demouchy S, Bollinger C, Gasc J, Koizumi S, Mussi A, Schryvers D, Idrissi H (2021) Stress-induced amorphization triggers deformation in the lithospheric mantle, Nature, 591, 82–86, DOI: 10.1038/s41586-021-03238-3
  (29) Thieme M, Pozzi G, Demouchy S, De Paola N, Barou F, Koizumi S, Bowen L (2021) Shear deformation of nano-and micro-crystalline olivine at seismic slip rates. Tectonophysics, 802, 228736
  (28) Ghosh S, Koizumi S, Hiraga T (2021) Diffusion creep of diopside, Journal of Geophysical Research: Solid Earth, 126 (1), e2020JB019855
  (27) Goto A, Fukui K, Hiraga T, Nishida Y, Ishibashi H, Matsushima T, Miyamoto T, Sasaki O (2020) Rigid migration of Unzen lava rather than flow. Journal of Volcanology and Geothermal Research, 407, 107073.
  (26) Yabe K, Hiraga T (2020) Grain-Boundary Diffusion Creep of Olivine: 2. Solidus Effects and Consequences for the Viscosity of the Oceanic Upper Mantle. Journal of Geophysical Research (Solid Earth), 125 (8), e2020JB019416.
  (25) Yabe K, Sueyoshi K, Hiraga T (2020) Grain‐Boundary Diffusion Creep of Olivine: 1. Experiments at 1 atm. Journal of Geophysical Research: Solid Earth, 125 (8), e2020JB019415.
  (24) Koizumi S, Hiraga T, Suzuki TS (2020) Vickers indentation tests on olivine: size effects. Physics and Chemistry of Minerals, 47 (2), 8.
  (23) Delon R, Demouchy S, Marrocchi Y, Bouhifd MA, Gasc J, Cordier P, Koizumi S, Burnard PG (2020) Effect of deformation on helium storage and diffusion in polycrystalline forsterite, submitted to Geochimica et Cosmochimica Acta, 273, 226-243, DOI: 10.1016/j.gca.2020.01.018
  (22) Gasc J, Demouchy S, Barou F, Koizumi S, Cordier P (2019) Creep Mechanisms in the Lithospheric Mantle Inferred from Deformation of Iron-Free Forsterite Aggregates at 900-1200°C, Tectonophysics, 761, 16-30.
  (21) Nakakoji T, Hiraga T (2018) Diffusion creep and grain growth in forsterite+ 20 vol% enstatite aggregates: 2. Their common diffusional mechanism and its consequence for weak‐temperature‐dependent viscosity. Journal of Geophysical Research: Solid Earth, 123 (11), 9513-9527.
  (20) Nakakoji T, Hiraga T, Nagao H, Ito S, Kano M (2018) Diffusion creep and grain growth in forsterite+ 20 vol% enstatite aggregates: 1. High‐resolution experiments and their data analyses. Journal of Geophysical Research: Solid Earth, 123 (11), 9486-9512.
  (19) Fei H, Koizumi S, Sakamoto N, Hashiguchi M, Yurimoto H, Marquardt K, Miyajima N, Katsura T (2018) Pressure, temperature, water content, and oxygen fugacity dependence of the Mg grain-boundary diffusion coefficient in forsterite, American Mineralogist, 103 (9): 1354-1361.
  (18) Fei H, Koizumi S, Sakamoto N, Hashiguchi M, Yurimoto H, Marquardt K, Miyajima N, Katsura T (2018) Mg lattice diffusion in iron-free olivine and implications to conductivity anomaly in the oceanic asthenosphere. Earth and Planetary Science Letters, 484, 204-212..
  (17) 平賀岳彦 (2017) 岩石 vs ファインセラミックス. 地質学雑誌, 123(6), 379-390.
  (16) Maruyama G, Hiraga T (2017) Grain‐to multiple‐grain‐scale deformation processes during diffusion creep of forsterite+ diopside aggregate: 2. Grain boundary sliding‐induced grain rotation and its role in crystallographic preferred orientation in rocks. Journal of Geophysical Research: Solid Earth, 122(8), 5916-5934.
  (15) Maruyama G, Hiraga T (2017) Grain‐to multiple‐grain‐scale deformation processes during diffusion creep of forsterite+ diopside aggregate: 1. Direct observations. Journal of Geophysical Research: Solid Earth, 122 (8), 5890-5915.
  (14) Marquardt K, De Graef M, Singh S, Marquardt H, Rosenthal A, Koizuimi S (2017) Quantitative electron backscatter diffraction (EBSD) data analyses using the dictionary indexing (DI) approach: Overcoming indexing difficulties on geological materials. American Mineralogist: Journal of Earth and Planetary Materials, 102 (9), 1843-1855.
  (13) Fei H, Koizumi S, Sakamoto N, Hashiguchi M, Yurimoto H, Marquardt K, Miyajima N, Yamazaki D, Katsura T (2016) New constraints on upper mantle creep mechanism inferred from silicon grain-boundary diffusion rates. Earth and Planetary Science Letters, 433, 350-359.
  (12) Koizumi S, Suzuki TS, Sakka Y, Yabe K, Hiraga T (2016) Synthesis of crystallographically oriented olivine aggregates using colloidal processing in a strong magnetic field. Physics and Chemistry of Minerals, 43(10), 689-706.
  (11) Tasaka M, Zimmerman ME, Kohlstedt DL (2015) Creep behavior of Fe‐bearing olivine under hydrous conditions. Journal of Geophysical Research: Solid Earth, 120 (9), 6039-6057.
  (10) Nishihara Y, Ohuchi T, Kawazoe T, Spengler D, Tasaka M, Kikegawa T, Suzuki A, Ohtani E (2014) Rheology of fine‐grained forsterite aggregate at deep upper mantle conditions. Journal of Geophysical Research: Solid Earth, 119(1), 253-273.
  (9) Tasaka M, Hiraga T, Michibayashi K (2014) Influence of mineral fraction on the rheological properties of forsterite+ enstatite during grain size sensitive creep: 3. Application of grain growth and flow laws on peridotite ultramylonite. Journal of Geophysical Research: Solid Earth, 119 (2), 840-857.
  (8) Tasaka M, Hiraga T, Zimmerman ME (2013) Influence of mineral fraction on the rheological properties of forsterite+ enstatite during grain‐size‐sensitive creep: 2. Deformation experiments. Journal of Geophysical Research: Solid Earth, 118 (8), 3991-4012.
  (7) Tasaka M, Hiraga T (2013) Influence of mineral fraction on the rheological properties of forsterite+ enstatite during grain‐size‐sensitive creep: 1. Grain size and grain growth laws. Journal of Geophysical Research: Solid Earth, 118 (8), 3970-3990.
  (6) Hiraga T, Miyazaki T, Yoshida H, Zimmerman ME (2013) Comparison of microstructures in superplastically deformed synthetic materials and natural mylonites: Mineral aggregation via grain boundary sliding. Geology, 41(9), 959-962.
  (5) Miyazaki T, Sueyoshi K, Hiraga T (2013) Olivine crystals align during diffusion creep of Earth’s upper mantle. Nature, 502 (7471), 321.
  (4) 平賀岳彦, 渡部泰史, 宮崎智詞 (2012) 粒間流体の実態. 地球化学, 46(4), 231-242.
  (3) Hiraga T, Miyazaki T, Tasaka M, Yoshida H (2010) Mantle superplasticity and its self-made demise. Nature, 468(7327), 1091.
  (2) Koizumi S, Hiraga T, Tachibana C, Tasaka M, Miyazaki T, Kobayashi T, Takamasa A, Sano S (2010) Synthesis of highly dense and fine-grained aggregates of mantle composites by vacuum sintering of nano-sized mineral powders. Physics and Chemistry of Minerals, 37 (8), 505-518.
  (1) Hiraga T, Tachibana C, Ohashi N, Sano S (2010) Grain growth systematics for forsterite±enstatite aggregates: Effect of lithology on grain size in the upper mantle. Earth and Planetary Science Letters, 291 (1-4), 10-20.