Ｍesozoic Pacific Oceanic Plateau

1. Tectonic history of the Pacific Plate just before the formation of the Shatsky Rise
   We revealed tectonic history of the Pacific Plate just before the formation of the Mesozoic Pacific oceanic plateau, Shatsky Rise. (Nakanishi et al., doi:10.1130/2015.2511(05), 2015.)

2. Tectonic history of the Manihiki Plateau, Cretaceous oceanic plateau
   We revealed tectonic history of the Danger Islands Troughs in the Manihiki Plateau, Cretaceous Pacific oceanic plateau. (Nakanishi et al., doi:10.1130/2015.2511(11), 2015.)

3. Volcanism around the Ontong Java Plateau
   We found new volcanic event around the Ontong Java Plateau. (Shimizu, et al., doi:10.1130/2015.2511(13), 2015; Tejada et al., doi:10.1130/2015.2511(14), 2015.)

Bending-related topographic structures of the subducting plate in the northwestern Pacific Ocean
I investigated elongated topographic structures associated with bending of the subducting oceanic plate along the western Kuril, Japan and northern Izu-Ogasawara trenches, using available multibeam bathymetric data. (Nakanishi, doi 10.1007/978-90-481-8885-7_1, 2011.)

Bathymetric features of the world's deepest seafloor, Challenger Deep
We made a precise bathymetric map of the world's deepest seafloor, Challenger Deep in the Mariana Trench. (Nakanishi, and Hashimoto, doi 10.1007/s11001-011-9134-0, 2011.)

Topographic expression around the spreading system in Gulf of Aden
We revealed topographic expression around the spreading system in Gulf of Aden from multibeam bathymetric surveys.

Research Subjects

I. Mesozoic Pacific Oceanic Plateau
Shatsky Rise
Manihiki Plateau
Ontong Java Plateau

II. Tectonics of Mesozoic Pacific Plate
Nosappu Fracture Zone
Hokkaido Trough

III. Topographic expression of trenches of western Pacific
Challenger Deep, South Mariana Trench
Central Mariana Trench
Boso trench triple junction
Japan Trench

IV. Sreading Systems in Indian Ocean
Gulf of Aden
Rodriguez triple junction

Selected Publications

• Nakanishi, M. (2017) Bending-related topographic structures of the incoming oceanic plate at the northwestern Pacific Ocean trench. Journal of Geography, 126, 125–146. (in Japanese with English abstract)
• Morishita, T., Fujie, G., Yamano, M., Nakanishi, M., Obana, K., Nakamura, Y., Saito, S., Kodaira, S., Kimura, J., Kuroda, J. and Ono, S. (2017) Overview of the drilling project on the bend-fault hydrology in old incoming plate. Journal of Geography, 126, 247–262. (in Japanese with English abstract)
• Noguchi, Y., Nakanishi, M., Ishihara, T., Tamaki, K., Fujimoto, H., Huchon, P., Leroy, S. and Styles, P. (2017) A comparison of two leveling methods for geomagnetic data. Journal of the Japan Society for Marine Surveys and Technology, 29, 3–18. (in Japanese with English abstract)
• Catalan, M., et al. (including Nakanishi, M.) (2016) Making a better magnetic map. EOS, 97, doi:10.1029/2016EO054645.
• Hirano, N., Nakanishi, M., Abe, N. and Machida, S. (2016) Submarine lava fields in French Polynesia. Marine Geology, 373, 39–48, doi:10.1016/j.margeo.2016.01.002.
• Nakanishi, M., Sager, W. W. and Korenaga, J. (2015) Reorganization of the Pacific-Izanagi-Farallon triple junction in the Late Jurassic: Tectonic events before the formation of Shatsky Rise. In The Origin, Evolution, and Environmental Evolution of Oceanic Large Igneous Provinces, edited by Erba, E., Neal, C., Sager, W. W. and Sano, T., Geol. Soc. Am. Spec. Vol., doi:10.1130/2015.2511(05).
• Nakanishi, M., Nakamura, Y., Coffin, M. F., Hoernle, K. and Werner, R. (2015) Topographic expression of the Danger Islands Troughs and implications for the tectonic evolution of the Manihiki Plateau, western equatorial Pacific Ocean. In The Origin, Evolution, and Environmental Evolution of Oceanic Large Igneous Provinces, edited by Erba, E., Neal, C., Sager, W. W. and Sano, T., Geol. Soc. Am. Spec. Vol., doi:10.1130/2015.2511(11).
• Shimizu, K., Sano, T., Tejada, M. L. G., Hyodo, H., Sato, K., Suzuki, K., Chang, Q. and Nakanishi, M. (2015) Alkalic magmatism in the Lyra Basin: A missing link in the late-stage evolution of the the Ontong Java Plateau. In The Origin, Evolution, and Environmental Evolution of Oceanic Large Igneous Provinces, edited by Erba, E., Neal, C., Sager, W. W. and Sano, T., Geol. Soc. Am. Spec. Vol., doi:10.1130/2015.2511(13).
• Tejada, M. L. G., Shimizu, K., Suzuki, K. Hanyu, T., Sano, T., Nakanishi, M., Nakai, S., Ishikawa, A., Chang, Q., Miyazaki, T., Hirahara, Y., Takahashi, T. and Senda, R. (2015) Isotopic evidence for a link between Lyra Basin and Ontong Java Plateau. In The Origin, Evolution, and Environmental Evolution of Oceanic Large Igneous Provinces, edited by Erba, E., Neal, C., Sager, W. W. and Sano, T., Geol. Soc. Am. Spec. Vol., doi:10.1130/2015.2511(14).
• Nakanishi, M. and Hashimoto, J. (2011) A precise bathymetric map of the world's deepest seafloor, Challenger Deep in the Mariana Trench. Mar. Geophys. Res., 32, 455–463, doi 10.1007/s11001-011-9134-0.
• Nakanishi, M. (2011) Bending-related topographic structures of the subducting plate in the northwestern Pacific Ocean. In Accretionary Prisms and Convergent Margin Tectonics in the Northwest Pacific Basin, edited by Ogawa, Y., Anma, R. and Dilek, Y., Modern Approaches in Solid Earth Sciences, 8, Springer Science+Business Media B.V., pp. 1–38, doi 10.1007/978-90-481-8885-7_1.
• Nakanishi, M. (2011) Field evaluation of sounding accuracy in the multi-narrow beam echosounder in deeper than 9,000 m of water depth. J. Jpn. Soc. Mar. Sur. Techno., 23, 11–23. (in Japanese with English abstract)

Teaching

General Education Course

• Introduction to Earth Sciences A

Undergraduate Course

• Basic Earth Science Seminar
• Data Processing on Earth Sciences II -1, 2
• Ocean Floor Geotectonics 1, 2
• Laboratory Class of Geophysics I
• Laboratory Class of Geophysics II
• Earth Science Seminar
• Research

Graduate Course

• Geophysics IVA
• Geophysics V A
• Advanced Seminar I
• Graduate Research I
• Advanced Seminar II
• Graduate Research II

Academic Society Membership

• American Geophysical Union
• Society of Geomagnetism and Earth, Planetary and Space Sciences
• Japan Society for Marine Surveys and Technology
• Seismological Society of Japan