Referred papers (in English)
| 37. | Suzuki, Y.*, K. Kawai, K. Konishi, A.F.E. Borgeaud, R.J. Geller Waveform inversion for 3–D shear velocity structure of D” beneath the Northern Pacific: Possible evidence for a remnant slab and a ‘passive plume’ Earth, Planets and Space, 68, 198 (8pp), 2016. [OPEN ACCESS] [BLOG] |
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| 36. | Borgeaud, A.F.E.*, K. Konishi, K. Kawai, R.J. Geller Finite frequency effects on apparent S-wave splitting in the D” layer: comparison between ray theory and full-wave synthetics Geophysical Journal International, 207, 12-28, 2016. |
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| 35. | Ichikawa, H., S. Yamamoto, K. Kawai, M. Kameyama Estimate of subduction rate of island arcs to the deep mantle Journal of Geophysical Research: Solid Earth, 121, 5447–5460, doi:10.1002/2016JB013119, 2016. |
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| 34. | Katayama, I., T. Kubo, H. Sakuma, K. Kawai Can clay minerals account for the non-asperity on the subducting plate interface Progress in Earth and Planetary Science, 2, 30 (8pp) DOI 10.1186/s40645-015-0063-4, 2015. (OPEN ACCESS) |
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| 33. | Kawai, K., H. Sakuma, I. Katayama, K. Tamura Frictional characteristics of single and polycrystalline muscovite and influence of fluid chemistry Journal of Geophysical Research: Solid Earth, 120, 6209-6218, doi:10.1002/2015JB012286, 2015. |
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| 32. | Ishikawa, A., K. Kawai Ultrapotassic magma from the deep mantle, Leucite Hills Lamproite, Wyoming USA Journal of Geography (Chigaku Zasshi), 124, 515-523, 2015. |
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| 31. | Kawai, K., T. Tsuchiya Small shear modulus of cubic CaSiO3 perovskite Geophysical Research Letters, 42, 2718-2726, 2015. |
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| 30. | Kawai, K., T. Tsuchiya Elasticity and phase stability of pyrope garnet from ab initio computation Physics of the Earth and Planetary Interiors, 240, 125-131, 2015. |
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| 29. | Ichikawa, H., M. Kameyama, H. Senshu, K. Kawai, S. Maruyama Influence of majorite on hot plumes Geophysical Research Letters, 41, 7501-7507, 2014. |
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| 28. | Konishi, K., K. Kawai, R.J. Geller, and N. Fuji Waveform inversion for localized 3-D seismic velocity structure in the lowermost mantle beneath the Western Pacific Geophysical Journal International, 199, 1245-1267, 2014. |
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| 27. | Kawai, K., T. Tsuchiya P-V-T equation of state of cubic CaSiO3 perovskite from first principles computation Journal of Geophysical Research: Solid Earth, 119, 2801-2809, 2014. (OPEN ACCESS) |
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| 26. | Kawai, K., K. Konishi, R.J. Geller and N. Fuji Methods for inversion of body-wave waveforms for localized three-dimensional seismic structure and an application to D” beneath Central America Geophysical Journal International, 197, 495-524, 2014. |
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| 25. | Ichikawa, H., M. Kameyama, K. Kawai Mantle convection with continenal drift and heat source around the mantle transition zone Gondwana Research, 24, 1080-1090, 2013. |
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| 24. | Ichikawa, H., K. Kawai, S. Yamamoto, M. Kameyama Supply rate of continental materials to the deep mantle through subduction channels Tectonophysics, 592, 46-52, 2013. |
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| 23. | Tsuchiya, T., K. Kawai, S. Maruyama Expanding-contracting Earth Geoscience Frontiers, 4, 341-347, 2013. |
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| 22. | Kawai, K., S. Yamamoto, T. Tsuchiya, S. Maruyama The second continent: Existence of granitic continental materials around the bottom of the mantle transition zone Geoscience Frontiers, 4, 1-6, 2013. |
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| 21. | Kawai, K., T. Tsuchiya First principles study on the high-pressure phase transition and elasticity of KAlSi3O8 K-hollandite American Mineralogist, 98, 207-218, 2013. (Selected as a Notable Paper by MSA) |
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| 20. | Konishi, K., K. Kawai, R.J. Geller, N. Fuji Waveform inversion of broad-band body-wave data for the S-velocity structure in the lowermost mantle beneath the Indian subcontinent and Tibetan Plateau Geophysical Journal International, 191, 305-316, 2012. |
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| 19. | Fuji, N., S. Chevrot, L. Zhao, R.J. Geller, K. Kawai Partial derivatives of high-frequency compressional body waves for 3-D Earth structure Geophysical Journal International, 190, 522-540, 2012. |
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| 18. | Kawai, K., T. Tsuchiya High-P,T phase relations in the NaAlSi2O6 system from first principles computation Physics and Chemistry of Minerals, 39, 305-310, 2012. |
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| 17. | Kawai, K., T. Tsuchiya First-principles investigations of elasticity and phase transition of grossular garnet Journal of Geophysical Research, 117, B02202, doi:10.1029/2011JB008529, 2012. |
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| 16. | Kawai, K., T. Tsuchiya Phase stability and elastic properties of the NAL and CF phases in the NaMg2Al5SiO12 system from first principles American Mineralogist, 97, 305-314, 2012. |
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| 15. | Kawai, K., R.J. Geller Inversion of seismic waveforms for shear wave velocity structure in the lowermost mantle beneath the Hawaiian hotspot Physics of the Earth and Planetary Interiors, 183, 136-142, 2010. |
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| 14. | Kawai, K., T. Tsuchiya Ab initio investigation of high-pressure phase relation and elasticity in the NaAlSi2O6 system Geophysical Research Letters, 37, L17302, doi:10.1029/2010GL044310, 2010. |
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| 13. | Kawai, K., R.J. Geller, N. Fuji Waveform inversion for S-wave structure in the lowermost mantle beneath the Arctic: Implications for mineralogy and chemical composition Geophysical Research Letters, 37, L16301, doi:10.1029/2010GL043654, 2010. |
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| 12. | Kawai, K., R.J. Geller The vertical flow in the lowermost mantle beneath the Pacific from inversion of seismic waveforms for anisotropic structure Earth and Planetary Science Letters, 297, 190-198, 2010. [Press Release] |
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| 11. | Fuji, N., K. Kawai, R.J. Geller A methodology for inversion of broadband seismic waveforms for elastic and anelastic structure and its application to the mantle transition zone beneath the northwestern Pacific Physics of the Earth and Planetary Interiors, 180, 118-137, 2010. |
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| 10. | Kawai, K., R.J. Geller Waveform inversion for localized seismic structure and an application to D” structure beneath the Pacific Journal of Geophysical Research, 115, B01305, doi:10.1029/2009JB006503, 2010. |
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| 9. | Kawai, K., T. Tsuchiya Temperature profile in the lowermost mantle from seismological and mineral physics joint modeling Proceedings of the National Academy of Sciences of the United States of America, 106, 22,119-22,123, 2009. [GRC][Ehime Univ.] |
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| 8. | Kawai, K., S. Sekine, N. Fuji, R.J. Geller Waveform inversion for D” structure beneath northern Asia using Hi-net tiltmeter data Geophysical Research Letters, 36, L20314, doi:10.1029/2009GL039651, 2009. |
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| 7. | Kawai, K., T. Tsuchiya, J. Tsuchiya, S. Maruyama Lost primordial continents Gondwana Research, 16, 581-586, 2009. |
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| 6. | Maruyama, S., A. Hasegawa, M. Santosh, T. Kogiso, S. Omori, H. Nakamura, K. Kawai, D. Zhao The dynamics of Big Mantle Wedge, Magma Factory, and Metamorphic -Metasomatic Factory in subduction zones Gondwana Research, 16, 414-430, 2009. |
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| 5. | Konishi, K., K. Kawai, R.J. Geller, N. Fuji MORB in the lowermost mantle beneath the western Pacific: Evidence from waveform inversion Earth and Planetary Science Letters, 278, 219-225, 2009. [Press Release] |
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| 4. | Kawai, K., R.J. Geller, N. Fuji D” beneath the Arctic from inversion of shear waveforms Geophysical Research Letters, 34, L21305, doi:10.1029/2007GL031517, 2007. |
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| 3. | Kawai, K., N. Takeuchi, R.J. Geller, N. Fuji Possible evidence for a double crossing phase transition in D” beneath Central America from inversion of seismic waveforms Geophysical Research Letters, 34, L09314, doi:10.1029/2007GL029642, 2007. (Selected as Editor’s Highlights) [Press Release] |
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| 2. | Kawai, K., N. Takeuchi, R.J. Geller Complete synthetic seismograms up to 2 Hz for transversely isotropic spherically symmetric media Geophysical Journal International, 164, 411-424, 2006. |
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| 1. | Suetsugu, D., M. Shinohara, E. Araki, T. Kanazawa, K. Suyehiro, T. Yamada, K. Nakahigashi, H. Shiobara, H. Sugioka, K. Kawai, Y. Fukao Mantle discontinuity depths beneath the West Philippine Basin from receiver function analysis of deep-sea borehole and seafloor broadband waveforms Bulletin of the Seismological Society of America, 95, 1947-1956, 2005. |
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| * Collaboration with graduate student advisee |
Chapter in book (Referred)
| 4. | Tsuchiya, T., K. Kawai, X. Wang, H. Ichikawa, and H. Dekura Temperature of the lower mantle and core based on ab initio mineral physics data. In Deep Earth: Physics and Chemistry of the Lower Mantle and Core (eds. H. Terasaki and R. A. Fischer, Wiley) Chap. 2, pp. 13-30, 2016. |
| 3. | Kawai, K., T. Tsuchiya Elasticity of continental crust around the mantle transition zone In The Earth’s heterogeneous mantle, Edited by Khan, A., and F. Deschamps, Springer, Chap. 8, pp. 259-274, 2015. |
| 2. | Ichikawa, H., K. Kawai, S. Yamamoto, M. Kameyama The effect of water on supply rate of continental materials to the deep mantle through subduction channels In The Earth’s heterogeneous mantle, Edited by Khan, A., and F. Deschamps, Springer, Chap. 9, pp. 275-299, 2015. |
| 1. | Tsuchiya, T., K. Kawai Ab initio mineralogical model of the Earth’s lower mantle In Physics and Chemistry of the Deep Earth, Edited by. S. Karato, Wiley, pp. 213-243, 2013. |
Referred papers (in Japanese)
| 2. | 丸山茂徳、大森聡一、千秋博紀、河合研志、 B.F. Windley 太平洋型造山帯－新しい概念の提唱と地球史における時空分布－、地学雑誌、120, 115-223, 2011. |
| 1. | 河合研志、 土屋卓久、 丸山茂徳 第二大陸、地学雑誌、119, 1197-1214, 2010. |
Patent
| 1. | 河合研志、庄司真史、小林佑介 震源情報可視化システム及び震源情報可視化方法、特願2016-187518, 9/26/2016. |
Others
| 4. | 河合研志 核マントル境界の温度構造および地球の熱進化、 なゐふる、 2013. |
| 3. | 河合研志、ゲラー・ロバート マントル最深部(D”層)の詳細構造 –新しい計算手法による推定–、 東京大学理学系研究科・理学部ニュース、 9月号、 2007. |
| 2. | 河合研志、大淵智勝、五十嵐丈二 鳥取県西部地震前の水平地殻変動; GPSデータの解析、京都大学防災研究所研究集会13K-4 報告書、地震発生準備過程の物理と観測、 2002. |
| 1. | 五十嵐丈二、角森史昭、河合研志 地殻応力臨界現象としての東海地震とその発生予測、京都大学防災研究所研究集会13K-4 報告書、地震発生準備過程の物理と観測、 2002. |