Rheology of post-perovskite and the lowermost lower mantle inferred from high pressure experiments

2011 Fiscal Year Final Research Report

• Project/Area Number: 21340128
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Solid earth and planetary physics
• Research Institution: Okayama University
• Principal Investigator: YAMAZAKI Daisuke 岡山大学, 地球物質科学研究センター, 准教授 (90346693)
• Co-Investigator(Kenkyū-buntansha): ITO Eiji 岡山大学, 地球物質科学研究センター, 名誉教授 (00033259) ; YOSHINO Takashi 岡山大学, 地球物質科学研究センター, 准教授 (30423338) ; KATSURA Tomoo 岡山大学, 地球物質科学研究センター, 教授 (40260666)
• Project Period (FY): 2009 – 2011
• Keywords: ポストペロフスカイト / レオロジー / 粒径 / 粘性率 / 異方性

Research Abstract

Post-perovskite is considered to be the dominant phase in the lowermost lower mantle(D "layer). Therefore, we investigated rheology of post-perovskite associated with the phase transformation from perovskite to post-perovskite by means of high pressure experiments to understand the dynamics of the earth's interior. Grain size is a key parameter which controls the mechanism of deformation and viscosity of constituting materials. Based on present experimental results, significant grain size reduction occurs during phase transformation and hence viscosity reduction is expected in the Dlayer.

Research Products

• [Journal Article] Static compression of(Mg_<0. 83>, Fe_<0. 17>) O and(Mg_<0. 75>, Fe_<0. 25>) O ferropericlase up to 58 GPa at 300, 700, and 1100 K. (2012)
  • Author(s): Matsui, M., Ito, E., Yamazaki, D., Yoshino, T., Guo, X., Shan, S., Higo, Y, Funakoshi, K
  • Journal Title: Am. Min. Volume: 97 Pages: 176-183
  • Peer Reviewed
• [Journal Article] 焼結ダイヤモンドアンビルを組み込んだ川井型高圧装置による圧力発生 (2011)
  • Author(s): 山崎大輔
  • Journal Title: 高圧力の科学と技術 Volume: 21 Pages: 272-277
  • Peer Reviewed
• [Journal Article] Silicon and magnesium diffusion in a single crystal of MgSiO_3 perovskite (2011)
  • Author(s): Xu, J., Yamazaki, D., Katsura, T., Wu, X., Remmert, P., Yurimoto, H., Chakraborty, S.
  • Journal Title: J. Geophys. Res. Volume: 116
  • DOI: DOI:10.1029/2011JB008444
  • Peer Reviewed
• [Journal Article] High pressure generation using scaled-up Kawai-cell (2011)
  • Author(s): A. Shatskiy, T. Katsura, K. D. Litasov, A. V. Shcherbakova, Y. M. Borzdov, D. Yamazaki, A. Yoneda, E. Ohtani, E. Ito
  • Journal Title: Phys. Earth Planet. Inter. Volume: 189 Pages: 92-108
  • Peer Reviewed
• [Journal Article] Crystal Structure of a New Carbon-Nitride-Related Material C2N2(CH2) (2011)
  • Author(s): Sougawa, M., Sumiya, T., Takarabe, K., Mori, Y., Okada, T., Gotou, H., Yagi, T., Yamazaki, D., Tomioka, N., Katsura, T., Kariyazaki, H., Sueoka, K., Kunitsugu, S.
  • Journal Title: Japanese Journal of Applied Physics Volume: 50 Pages: 095503
  • Peer Reviewed
• [Journal Article] Synthesis and crystal chemica lcharacterization of the pyrochlore type MgZrSi2O7 (2011)
  • Author(s): Xu, J, Ito, E., Yamazaki, D., Guo, X., Wu, X.
  • Journal Title: Materials Chemistry and Physics Volume: 128 Pages: 410-412
  • Peer Reviewed
• [Journal Article] Effect of iron content on electrical conductivity of ferropericlase with implications for the spin transition pressure (2011)
  • Author(s): Yoshino, T., Ito, E., Katsura, T., Yamazaki, D., Shan, S., Guo, X., Nishi, M., Higo, Y., Funakoshi, K.
  • Journal Title: J. Geophys. Res. Volume: 116 Pages: B04202
  • Peer Reviewed
• [Journal Article] Compressibility of strontium orthophosphate Sr3(PO4) 2at high pressure (2011)
  • Author(s): Zhai, S., Xue, W., Yamazaki, D., Shan, S., Ito, E., Tomioka, N., Shimojuku, A., Funakoshi, K.
  • Journal Title: Phys. Chem. Minerals Volume: 38 Pages: 357-361
  • Peer Reviewed
• [Journal Article] Phase boundary between perovskite and post-perovskite structures in MnGeO3 determined by in situ X-ray diffraction measurements using sintered diamond anvils (2011)
  • Author(s): D. Yamazaki, E. Ito, T. Katsura, T. Yoshino, S. Zhai, H. Fukui, A. Shatskiy, X. Guo, S. Shan, T. Okuchi, Y. Tange, Y. Higo, K. Funakoshi
  • Journal Title: Am. Min. Volume: 96 Pages: 89-92
  • Peer Reviewed
• [Journal Article] Adiabatic temperature profile in the mantle (2010)
  • Author(s): T. Katsura, A. Yoneda, D. Yamazaki, T. Yoshino, E. Ito
  • Journal Title: Phys. Earth Planet. Inter. Volume: 183 Pages: 212-218
  • Peer Reviewed
• [Journal Article] Grain growth kinetics of majorite and stishovite in MORB (2010)
  • Author(s): D. Yamazaki, T. Matsuzaki, T. Yoshino
  • Journal Title: Phys. Earth Planet. Inter. Volume: 183 Pages: 183-189
  • Peer Reviewed
• [Journal Article] Electrical conductivity of mantle peridotite at the uppermost lower mantle condition (2010)
  • Author(s): Yoshino, T., Katsura, T., Yamazaki, D., Ito, E.
  • Journal Title: J. Phys.: Conference Series Volume: 215 Pages: 012102
  • Peer Reviewed
• [Journal Article] Preliminary reports on in situ X-ray observation of "post-perovskite" in CaRuO3 (2010)
  • Author(s): Yamazaki, D., Ito, E., Yoshino, T., Guo, X.-G., Shun, S., Nishi, M., Higo Y., Funakoshi, K.
  • Journal Title: J. Phys.: Conference Series Volume: 215 Pages: 012096
  • Peer Reviewed
• [Journal Article] High pressure generation and investigation of the spin transition of ferropericlase(Mg0. 83, Fe0. 17) 0 (2010)
  • Author(s): Ito, E., Yoshino, T., Yamazaki, D., Shatzkiy, A. S., Shun, S., Guo, X., Katsura, T., Higo, Y., Funakoshi, K.
  • Journal Title: J. Phys.: Conference Series Volume: 215 Pages: 012099
  • Peer Reviewed
• [Journal Article] Stishovite single-crystal growth and application to silicon self-diffusion measurements (2010)
  • Author(s): A. Shatskiy, D. Yamazaki, Y. M. Borzdov, T. Matsuzaki, K. D. Litasov, T. Cooray, A. Ferot, E. Ito, T. Katsura
  • Journal Title: American Mineralogist Volume: 95 Pages: 135-143
  • Peer Reviewed
• [Journal Article] Aluminum nitride crystal growth from an Al-N system at 6. 0 GPa and 1800℃ (2010)
  • Author(s): Shatskiy, A., Borzdov, Y. M., Yamazaki, D., Litasov, K. D., Katsura, T., Palyanov, Y. N
  • Journal Title: Crystal Growth and Design Volume: vol.10, No.6 Pages: 2563-2570
  • Peer Reviewed
• [Journal Article] Pressure generation and investigation of the post-perovskite transformation in MgGeO3 by squeezing the Kawai-cell equipped with sintered diamond anvils (2010)
  • Author(s): Ito E., Yamazaki D., Yoshino T., Fukui H., Zhai S., Shatzkiy A., Katsura T., Tange Y., Funakoshi K.
  • Journal Title: Earth and Planetary Science Letters Volume: 293 Pages: 84-89
  • Peer Reviewed
• [Journal Article] P-V-T relations of wadsleyite determined by in situ X-ray diffraction in a large-volume high-pressure apparatus (2009)
  • Author(s): Katsura T., Shatskiy A., Manthilake M. A. G. M., Zhai S., Yamazaki D., Matsuzaki T., Yoshino T., Yoneda A., Ito E., Sugita M., Tomioka N., Nozawa A., Funakoshi K.
  • Journal Title: Geophysical Research Letters Volume: L11307
  • Peer Reviewed
• [Journal Article] Thermal expansion of forsterite at high pressures determined by in situ X-ray diffraction : The adiabatic geotherm in the upper mantle (2009)
  • Author(s): Katsura, T., Shatskiy, A., Manthilake, M. A. G. M., Zhai, S., Fukui, H., Yamazaki, D., Matsuzaki, T., Yoneda, A., Ito, E., Kuwata, A., Ueda, A., Nozawa, A., Funakoshi, K.
  • Journal Title: Phys. Earth Planet. Inter. Volume: 174 Pages: 86-92
  • Peer Reviewed
• [Journal Article] Well-wetted olivine grain boundaries in partial molten peridotites in the asthenosphere (2009)
  • Author(s): Yoshino T., Yamazaki D., Mibe K.
  • Journal Title: Earth and Planetary Science Letters Volume: 283 Pages: 167-173
  • Peer Reviewed
• [Journal Article] Single crystal growth of wadsleyite (2009)
  • Author(s): Shatskiy A., Litasov K. D., Matsuzaki T., Shinoda K., Yamazaki D., Yoneda A., Ito E., Katsura T.
  • Journal Title: Am. Min. Volume: 94 Pages: 1130-1136
  • Peer Reviewed
• [Journal Article] A new 6-axis apparatus to squeeze the Kawai-cell of sintered diamond cubes (2009)
  • Author(s): Ito E., Katsura T., Yamazaki D., Yoneda A., Tado, M., Ochi, T., Nishibara, E., Nakamura, A.
  • Journal Title: Phys. Earth Planet. Inter. Volume: 174 Pages: 264-269
  • Peer Reviewed
• [Presentation] 燒結ダイヤモンドアンビルを組み込んだ川井型装置の圧力発生と地球構成物質の弾性 (2011)
  • Author(s): 山崎大輔・伊藤英司・芳野極・下宿彰・郭シンツァン・単シャンミン・肥後祐司・國本健広・舟越賢一
  • Organizer: 第52回高圧討論会
  • Place of Presentation: 那覇
  • Year and Date: 2011-11-10
• [Presentation] Interconnected ferro-periclase in the subducting slab at the top of lower mantle (2011)
  • Author(s): Daisuke Yamazaki
  • Organizer: 地球惑星関連連合大会
  • Place of Presentation: 千葉
  • Year and Date: 2011-05-25
• [Presentation] Compression of MgSiO_3 and(Mg, Fe) SiO_3 perovskites based on the pressure generation technique using sintered diamond anvils in a Kawai-typeapparatus (2010)
  • Author(s): Daisuke Yamazaki, Eiji Ito, Xinzhuan Guo, Takashi, Yoshino, Shuangming Shan, Akira Shimojuku, Akira Yoneda, Yuji Higo, Ken-ichi Funakoshi
  • Organizer: American Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco
  • Year and Date: 2010-12-15
• [Presentation] 焼結ダイヤモンドアンビルを用いた川井型装置での圧力発生とペロフスカイトの圧縮率 (2010)
  • Author(s): 山崎大輔・伊藤英・芳野極・下宿彰・肥後祐司・舟越賢一
  • Organizer: 高圧討論会
  • Place of Presentation: 仙台
  • Year and Date: 2010-10-21
• [Presentation] Rheology of the subducted slab in the lower mantle inferred from the connectivity of ferro-periclase in the post-spinel aggregates (2010)
  • Author(s): 山崎大輔
  • Organizer: 地球惑星関連連合大会
  • Place of Presentation: 千葉
  • Year and Date: 2010-05-27
• [Presentation] Mechanism of transformation from perovskite to post-perovskite (2010)
  • Author(s): D. Yamazaki, M. Murakami and M. Miyahara
  • Organizer: 地球惑星関連連合大会
  • Place of Presentation: 千葉
  • Year and Date: 2010-05-25
• [Presentation] Observations of post-perovskite transition in germanate and melting of stishovite by using sintered diamond anvil and boron doped diamond heater in Kawai cell : Toward the generation of extreme P-T condition (2009)
  • Author(s): D. Yamazaki, E. Ito, A. Shatskiy, T. Yoshino, T. Katsura, K. Funakoshi
  • Organizer: AIRAPT-22 & HPCJ-50
  • Place of Presentation: 東京
  • Year and Date: 2009-07-28
• [Presentation] 下部マントルにおけるフェロペリクレースの重要性について (2009)
  • Author(s): 山崎大輔・芳野極・桂智男・伊藤英司
  • Organizer: 地球惑星関連連合大会
  • Place of Presentation: 千葉
  • Year and Date: 2009-05-18