Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Hiroaki Ohfuji"'
Autor:
Yuichi Inagaki, Hiroki Suga, Hiroaki Ohfuji, Naotaka Tomioka, Masaaki Miyahara, Masashi Yoshida, Takuji Ohigashi, Seiji Kamada, Yu Kodama, Akira Yamaguchi, Eiji Ohtani, Naohisa Hirao, Fumiya Maeda, Itaru Ohira, Takeshi Sakai
Publikováno v:
Meteoritics & Planetary Science. 56:1729-1743
Autor:
Takeshi Sakai, Naotaka Tomioka, Hiroaki Ohfuji, Masato Saitoh, Masaaki Miyahara, Akira Yamaguchi, Kanta Fukimoto, Eiji Ohtani, Yu Kodama
Publikováno v:
Meteoritics & Planetary Science. 55:2619-2651
Autor:
Yu Kodama, Akira Yamaguchi, Hiroaki Ohfuji, Kanta Fukimoto, Takeshi Sakai, Eiji Ohtani, Masaaki Miyahara, Naotaka Tomioka
Publikováno v:
Meteoritics & Planetary Science. 55
Autor:
Hongzhan Fei, Svyatoslav Shcheka, Zhaodong Liu, Masayuki Nishi, Tomoo Katsura, Nobuyoshi Miyajima, Yuji Higo, Tiziana Boffa Ballaran, Lin Wang, Yoshinori Tange, Takeshi Sakai, Hiroaki Ohfuji, Takayuki Ishii, Takeshi Arimoto, Tetsuo Irifune
Publikováno v:
Journal of Geophysical Research: Solid Earth. 122:7775-7788
Phase relations in the system MgSiO3-Al2O3 were investigated at pressures of 27–45 GPa and temperatures of 1700, 2000, and 2300 K using sintered diamond and tungsten carbide anvils in a multianvil apparatus. The bulk compositions in the MgSiO3-Al2O
Autor:
Judit Sándorné Kovács, István Kovács, Peter R. Buseck, Kurt Leinenweber, Hiroaki Ohfuji, Kenneth J. Domanik, Péter Németh, Thomas L. Groy
Publikováno v:
Earth and Planetary Science Letters. 469:148-155
Water-bearing minerals provide fundamental knowledge regarding the water budget of the mantle and are geophysically significant through their influence on the rheological and seismic properties of Earth's interior. Here we investigate the CaO–SiO2
Autor:
Tetsuo Irifune, Takaya Nagai, Matthew L. Whitaker, Toru Shinmei, Kiyoshi Fujino, Yasuhiro Kuwayama, Daisuke Nishio-Hamane, Hiroaki Ohfuji, Yusuke Seto
Publikováno v:
Physics of the Earth and Planetary Interiors. 228:186-191
Spin transition and substitution of Fe3+ in Fe3+AlO3-bearing MgSiO3 perovskite (Pv) and post-perovskite (PPv) were examined up to 200 and 165 GPa, respectively, at room temperature by X-ray emission spectroscopy (XES) and XRD. The results of XES and
Autor:
Tetsuo Irifune, Kiyoshi Fujino, Matthew L. Whitaker, Yohei Kojima, Ku Ding Tsuei, Ayako Shinozaki, Hirofumi Ishii, Nozomu Hiraoka, Yasuhiro Kuwayama, Nagayoshi Sata, Hiroaki Ohfuji, Sayaka Murakami, Daisuke Nishio-Hamane
Publikováno v:
Physics of the Earth and Planetary Interiors. 217:31-35
The spin transition and substitution of Fe 3+ in Mg 0.85 Fe 3+ 0.15 Al 0.15 Si 0.85 O 3 post-Mg-perovskite (PPv) synthesized at 165–170 GPa, 2100 K were examined by X-ray emission spectroscopy (XES) and X-ray diffraction (XRD) during decompression
Publikováno v:
Earth and Planetary Science Letters. 361:44-49
Si 4+ +M 2+ ↔2Al 3+ (M=Mg+Fe+Ca) interdiffusion rates in majoritic garnet have been determined at pressure of 17 GPa and temperatures of 1550–1700 °C using a Kawai-type high-pressure apparatus. The diffusion profiles were measured across the int
Autor:
Takehiro Kunimoto, Laurent Gautron, Steeve Gréaux, Tetsuo Irifune, Norimasa Nishiyama, Nicolas Menguy, Hiroaki Ohfuji, Yoshio Kono
Publikováno v:
Physics of the Earth and Planetary Interiors. 185:89-99
High-pressure and high-temperature phase transformations of Ca 3 Al 2 Si 3 O 12 grossular garnet were examined at 19–26 GPa and 700–2000 K using Kawai-type multi-anvil apparatus coupled with in situ X-ray diffraction (XRD). Recovered samples were
Publikováno v:
Earth and Planetary Science Letters. 252:372-378
Seismic anisotropy is one of the significant features in the D″ layer of the Earth and is thought to be derived from the lattice preferred orientation (LPO) of constituent materials or shape preferred orientation (SPO) of heterogeneous materials su