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Kyoko OKINO (Professor)
Speciality: Submarine Geophysics & Tectonics
Publication
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[Original] Ryuta Arai, Kazuya Shiraishi, Yasuyuki Nakamura, Gou Fujie, Seiichi Miura, Shuichi Kodaira, Dan Bassett, Tsutomu Takahashi, Yuka Kaiho, Yohei Hamada, Kimihiro Mochizuk, Rie Nakata, Masataka Yoshitaka Hashimoto, Kyoko Okino, Thick slab crust with rough basement weakens interplate coupling in the western Nankai Trough, Earth, Planets and Space, 76,1,73, https://doi.org/10.1186/s40623-024-02025-4, 2024 Ryuta Arai, Seiichi Miura, Yasuyuki Nakamura, Gou Fujie, Shuichi Kodaira, Yuka Kaiho, Kimihiro Mochizuk, Rie Nakata, Masataka Kinoshita, Yoshitaka Hashimoto, Yohei Hamada, Kyoko Okino, Upper-plate conduits linked to plate boundary that hosts slow earthquakes, Nature Communications, 14,1,5101, https://doi.org/10.1038/s41467-023-40762-4, 2023 Keishiro Azami, Kanta Koyama, Shiki Machida, Kyoko Okino, Kazutaka Yasukawa, Yasuhiro Kato, Etsuo Uchida, Formation of hydrothermal ferromanganese oxides from the Daigo-Kume Knoll in the middle Okinawa Trough, Japan, Marine Geology, 463, https://doi.org/10.1016/j.margeo.2023.107117, 2023 Okino, K., Tani, K., Fujii, M. et al. Geophysical investigation of the Mado Megamullion oceanic core complex: implications for the end of back-arc spreading. Prog Earth Planet Sci 10, 37. https://doi.org/10.1186/s40645-023-00570-2, 2023. Akihiro Tamura , Takuya Sagawa, Kyoko Okino, Tomoaki Morishita, Determination of whole-rock trace-element compositions of siliceous rocks using MgO-diluted fused glass and LA–ICP–MS, Geochem. J. 56, 6, 231-239, https://doi.org/10.2343/geochemj.GJ22020, 2022. Tetsuo Matsuno, Nobukazu Seama, Haruka P Shindo, Yoshifumi Nogi, Kyoko Okino, Enhanced and Asymmetric Melting Beneath the Southern Mariana Back‐Arc Spreading Center Under the Influence of Pacific Plate Subduction, J. Geophysical Res. Solid Earth, 127,3 https://doi.org/10.1029/2021JB022374, 2022. Takuya Sagawa, Akihiro Tamura, Kyoko Okino, Tomoaki Morishita, Validation of Trace Element Analysis of Geological Materials by Single-Pulse Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS), Analytical Letters, 5, 18, 2886-2896, https://doi.org/10.1080/00032719.2022.2077356, 2022. A Sen, JE Snow, Y Ohara, K Hirauchi, Y Kouketsu, A Sanfilippo, V Basch, Y Harigane, M Fujii, K Okino, N Akizawa, Melting and Evolution of Amphibole‐Rich Back‐Arc Abyssal Peridotites at the Mado Megamullion, Shikoku Basin, Geochemistry, Geophysics, Geosystems, 22,12,https://doi.org/10.1029/2021GC010013, 2021. Ken‐ichi Hirauchi, Izumi Segawa, Yui Kouketsu, Yumiko Harigane, Yasuhiko Ohara, Jonathan Snow, Atlanta Sen, Masakazu Fujii, Kyoko Okino, Alteration processes recorded by back-arc mantle peridotites from oceanic core complexes, Shikoku Basin, Philippine Sea, Island Arc, 30,1, https://doi.org/10.1111/iar.12419, 2021 Ritoko Kikunaga, Ke‐han Song, Shun Chiyonobu, Kazuhiko Fujita, Ryuichi Shinjo, Kyoko Okino, Shimajiri Group equivalent sedimentary rocks dredged from sea knolls off Kume Island, central Ryukyus: Implications for timing and mode of rifting of the middle Okinawa Trough back-arc basin, Island Arc 30,1, https://doi.org/10.1111/iar.12425, 2021 Akizawa, N., Ohara, Y., Okino, K. et al. Geochemical characteristics of back-arc basin lower crust and upper mantle at final spreading stage of Shikoku Basin: an example of Mado Megamullion. Prog Earth Planet Sci 8, 65, https://doi.org/10.1186/s40645-021-00454-3, 2021 Machida S., Nakamura K., Kogiso T., Shimomura R., Horinouchi K., Okino K., Kato Y., Fine-scale chemostratigraphy of cross-sectioned hydrogenous ferromanganese nodules from the western North Pacific, Island Arc, 30, e12395, 10.1111/iar.12395 , 2021 Basch V., Sanfilippo A., Sani C., Ohara Y., Snow J., Ishizuka O., Harigane Y., Michibayashi K., Sen A., Akizawa N., Okino K., Fujii M., Yamashita H., Crustal Accretion in a Slow Spreading Back‐Arc Basin: Insights From the Mado Megamullion Oceanic Core Complex in the Shikoku Basin Geochemistry, Geophysics, Geosystems, 21,11, e2020GC009199, 10.1029/2020GC009199, 2020 Fujii, M. and Okino K., Near-seafloor magnetic mapping of off-axis lava flows near the Kairei and Yokoniwa hydrothermal fields in the Central Indian Ridge, Earth, Planets and Space, 70:188, 10.1186/s40623-018-0959-5,2018 Miyazaki J., Kawagucci S., Makabe A., Takahashi A., Kitada K., Torimoto J., Matsui Y., Tasumi E., Shibuya T., Nakamura K., Horai S., Sato S., Ishibashi J., Kanzai H., Nakagawa S., Hirai M., Takaki Y., Okino K., Watanabe H., Kumagai H. and Chen C.，Deepest and hottest hydrothermal activity in the Okinawa Trough: the Yokosuka site at Yaeyama Knoll, Royal Society Open Science, 4(12), 10.1098/rsos.171570, 2017 Fujii M., Okino K., Sato H., Nakamura K., Sato T., and Yamazaki T., Variation in magnetic properties of serpentinized peridotite exposed on the Yokoniwa Rise. Central Indian Ridge: Insights into the role of magnetite in serpentinization, Geochemistry. Geophysics. Geosystems, 17, 10.1016/j.epsl.2016.02.018, 2016. Honsho C., Yamazaki T., Ura T., Okino K., Morozumi H. and Ueda S., Magnetic anomalies associated with abundant production of pyrrhotite in a sulfide deposit in the Okinawa Trough. Japan, 17, 10.1002/2016GC006480, 2016. Nakamura K., Machida S., Okino K., Masaki Y., Iijima K., Suzuki K. and Kato Y., Acoustic characterization of pelagic sediments using sub-bottom profiler data: Implications for the distribution of REY-rich mud in the Minamitorishima EEZ. western Pacific, Geochemical Journal, 50, 10.2343/geochemj.2.0433, 2016. Kawaguchi, S., J. Miyazaki, T. Noguchi, K. Okamura, T. Shibuya, T. Watsuji, M., Nishizawa, H. Watanabe, K. Okino, N. Takahata, Y. Sano, K. Nakamura, A. Shuto, M. Abe, Y. Takaki, T. Nunoura, M. Koonjul, M. Singh, G. Beedessee, M. Khishma, V. Bhoyroo, D. Bissessur, L.S. Kumar, D. Marie, K. Tamaki, and K. Takai, Fluid chemistry in the Solitaire and Dodo hydrothermal fields of the Central Indian Ridge, Geofluids, DOI: 10.1111/gfl.12201, 2016. Fujii M., Okino K., Sato T, Sato H and Nakamra K, Orogin of magnetic highs at ultramafic hosted hydrothermal systems: Insights from the Yokoniwa site of Central Indian Ridge, Earth and Planetary Science Letters, 441, 26-37, doi:10.1016/j/epsl.2016.02.018, 2016. Okino Kyoko、Magnetic Anomalies in the Philippine Sea: Implications for Regional Tectonics、Journal of Geography（Chigaku Zasshi）、124, 729–747, doi:10.5026/jgeography.124.0000, 2015. (in Japanese) Okamura K., Sugiyama T., Noguchi T., Fukuba T. and Okino K., Development of a deep-sea hydrogen sulfide ion sensor and its application for submarine hydrothermal plume exploration, Geochemical Journal, 49, 603-611, doi:10.2343/geochemj.2.0391, 2015. Nakamura K., Kawagucci S., Kitada K., Kumagai H., Takai K. and Okino K., Water column imaging with multibeam echo-sounding in the mid-Okinawa Trough: implications for distribution of dep-sea hydrothermal vent sites and the cause of acoustic water column anomaly, Geochemical Journal, 49, 579-596, doi:10.2343/geochemj.2.0387, 2015. Fujii, M., K. Okino, C. Honsho, J. Dyment, F. Szitkar, N. Mochizuki, and M. Asada, High-Resolution Magnetic Signature of Active Hydrothermal Systems in the Back-Arc Spreading Region of the Southern Mariana Trough, J. Geophys. Res., 120, 2821-2837, doi:10.1002/2014JB011714, 2015. Okino, K., K. Nakamura, and H. Sato, Tectonic background of four hydrothermal fields along the Central Indian Ridge, in J. Ishibashi et al. (eds.)., Subseafloor Biosphere Linked to Global Hydrothermal Systems; TAIGA Concept, Springer Japan, Tokyo, 2015. Morishita, T., K. Nakamura, T. Shibuya, H. Kumagai, T. Sato, K. Okino, H. Sato, R. Nauchi, K. Hara, and R. Takamaru, Petrology of peridotites and related gabbroic rocks around the Kairei hydrothermal field in the Central Indian Ridge, in J. Ishibashi et al. (eds.)., Subseafloor Biosphere Linked to Global Hydrothermal Systems; TAIGA Concept, Springer Japan, Tokyo, 2015. Seama, N., H. Sato, Y. Nogi and K. Okino, The mantle dynamics, the crustal formation, and the hydrothermal activity of the Southern Mariana Trough back-arc Basin, in J. Ishibashi et al. (eds.)., Subseafloor Biosphere Linked to Global Hydrothermal Systems; TAIGA Concept, Springer Japan, Tokyo, 2015. Seama N. and K. Okino, Asymmetric seafloor spreading of the Southern Mariana Trough back-arc basin, in J. Ishibashi et al. (eds.)., Subseafloor Biosphere Linked to Global Hydrothermal Systems; TAIGA Concept, Springer Japan, Tokyo, 2015. Sato T., K. Okino, H. Sato, M. Mizuno, T. Hanyu and N. Seama, Magmatic activities on the Southwest Indian Ridge between 35°E and 40°E, the closest segment to the Marion hotspot, Geochem. Geophys. Ceosyst., 14, doi:10.1002/2013GC004814, 2013. Nakamura K., T. Toki, N. Mochizuki, M. Asada, J. Ishibashi, Y. Nogi, S. Yoshikawa, J. Miyazaki and K. Okino, Discovery of a new hydrothermal vent based on an underwater, high-resolution geopjuysica survey, Deep-Sea Research I, 74, 1-10, dpi:10,1016/j.dsr.2012.12.003, 2013. [Abstract] Yoshikawa S., K. Okino and M. Asada, Geomorphological variations at hydrothermal sites in the southern Mariana Trough: relationship between hydrothermal activity and topographic characteristics, Marine Geology, 303-306, 172-182, doi:10.1016/j.dsr.2012.12.003, 2012. [Abstract] Ohara Y., Okino K., Snow J.E., Tectonics of unusual crustal accretion in the Parece Vela basin, in Accretionary Prisms and Convergent Margin Tectonics in the Northwest Pacific Basin, Modern Appproaches in Solid Earth Sciences 8, pp. 149-168, Springer Science+Business Media, 2011. [Abstract] Watanabe, M., K. Okino and T. Kodera, Rifting to spreading in the southern Lau Basin: Variations within the transition zone, Tectonophysics 494, 226-234, 2010. [Abstract] Kandilarov, A., H. Landa, R. Mjelde, R.B. Pedersen, K. Okino and Y. Murai, Crustal structure of the ultra-slow spreading Knipovich Ridge, North Atlantic, along a presumed ridge segment center, Marine Geophys. Res., 31, 173-195, 2010. [Abstract] Curewitz D., K.Okino, M. Asada, B.Baranov, E. GUsev, and K. Tamaki, Structural analysis of fault populations along the oblique ultra-slow spreading Knipovich Ridge, North Atlantic Ocean, 74 degrees 30 ' N-77 degrees 50 ' N, J. Structural Geology, 32, 727-740, 2010. [Abstract] Morishita, T., K. Hara, K. Nakamura, T. Sawaguchi, A. Tamura, S. Arai, K. okino, K. Takai, and H. Kumagai, Igneous, alteration, and exhumation processes recorded in abyssal peridotites and related fault rocks from an oceanic core complex along the Central Indian Ridge, Journal of Petrology,50,1299-1325,2009. [Abstract] Nakamura K., T. Morishita, W. Bach, F. Klein, K. Hara, K. Okino, and K. Takai, Serpentinized troctolistes exposed near the Kairei Hydrothermal Field, Cnetral Indian Ridge: Insights into the origin of the Kairei hydrothermal fluid supporting a unique microbiological ecosystem, Earth and Planetary Science Letters, 280,128-136, 2009. [Abstract] Sato T., K. Okino, and H. Kumagai, Magnetic structure of an oceanic core complex at the Southernmost Central Indian Ridge: Analysis of shipboard and deep-sea three-component magnetometer data, Geochem. Geophys. Ceosyst., 10,Q06003,doi10.1029/2008GC002267, 2009. [Abstract] Kim, Y.-M., Lee, S.-M. and K. Okino, Comparison of gravity anomaly between mature and immature intra-oceanic subduction zones in the western Pacific, Tectonophysics, 474, 657-673, 2009. [Abstract] Okino, K., Y. Ohara, T. Fujiwara, S.-M. Lee, Y. Nakamura, K. Koizumi and S. Wu, Tectonics of the southern tip of the Parece Vela Basin, Tectonophysics, 466, 213-228, 2009. [Abstract] [PDF] Kandilarov A., R. Mjerde, K.Okino and Y. Murai, Crustal structure of the ultra-slow spreading Knipovich Ridge, North Atlantic, along apresumed amagmatic portion of oceanic crustal formation, Marine Geophysycal Researches, 29, 109-134, 2008. [Abstract] Kumagai H., K. Nakamura, T. Toki, T. Morishita, K. Okino, J. Ishibashi, U. Tsunogai, S. Kawagucchi, T. Gamo, T. Shibuya, T. Sawaguchi, N. Neo, M. Joshima, T. Sato and K. Takai, Geological background fo the Kairei and Edmond hydrothermal fields along the Central Indian Ridge: Implications for their vent fluids' distinct chemistry, Geofluids, 8, 1-13, 2008. [Abstract] Ohara, Y., J. Kasahara, and K. Okino, Seismic study on oceanic core complexes in the Parece Vela backarc basin, Island Arc, 16, 3, 348-360, 2007. [Abstract] Connelly, D. P., C. R. German, M. Asada, K. Okino, A. Egorov, T. Naganuma, N. Pimenov, G. Cherkashev, and K. Tamaki, Hydrothermal activity on the ultra-slow spreading southern Knipovich Ridge, Geochem. Geophys. Geosyst., 8, Q08013, doi:10.1029/2007GC001652, 2007. [Abstract]Cannat, M., D. Sauter, V. Mendel, E. Ruellean, K. Okino, J. Escartin, V. Combier, M. Baala, Modes of seafloor generation at a melt-poor ultraslow-spreading ridge, Geology, 34, 7, 605-608, 2006. [Abstract] K. Okino, K. Matsuda, D. Christie, Y. Nogi and K. Koizumi, Development of oceanic detachment and asymmetric spreading at the Australian-Antarctic Discordance, Geochem. Geophys. Geosyst., 5(12), Q12012, doi:10.1029/2004GC000793, 2004. [Abstract] [PDF] [Review] Urabe. T., Okino K., Sunamura M., Ishibashi J., Takai K. and Suzuki K., Trans-crustal Advections and In-situ Biogeochemical Processes of Global Sub-seafloor Aquifer: The Sub-seafloor "TAIGA", Journal of Geography, 118, 1027-1036, 2009 (in Japanese). Kawada K.. Seama N and Okino K., Review of Oceanic Crustal Structure and Seafloor Hydrothermal Circulation, Journal of Geography, 118,1037-1063, 2009 (in Japanese). Martinez, F., K. Okino, Y. Ohara, A.-L. Reysenbach and S. K. Goffredi, Back-Arc Basins, Oceanography, 20,1, 116-127, 2007.[Abstract] [PDF] Isezaki, N. and K. Okino, Magnetic Anomalies in the Philippine Sea, In H. Tokuyama, S.A. Shcheka, N Isezaki et al, ed. Geology and Geophysics of the Philippine Sea, TERRAPUB, 39-49, 1995. [Abstract] [Others] Nakanishi M. and Okino K., Ocean Floor Geoscience, 318pp., University of Tokyo Press, Tokyo, 2016 (in Japanese) K. Okino, Seafloor Morphology, Geological Society of Japan ends., Foundation of Ocean Floor Science, 10-19, KYORITSU SHUPPAN CO., Tokyo, 2016. K. Okino, K. Nakamura, Y. Nogi, M. Fujii, N. Mochizuki, M. Asada and C. Honsho, Characterization of a new hydrothermal vent based on magnetic and acoustic surveys, Underwater Technology Symposium (UT), 2013 IEEE International, doi: 10.1109/UT.2013.6519827, 2013. Fujii M., Okino K., Honsho C., Dyment J., Szitkar F., and Mochizuki N., Developing near-bottom magnetic measurements using a 3D forward moiling technique: Application to hydrothermal vent fields, Underwater Technology Symposium (UT), 2013 IEEE International, doi: 10.1109/UT.2013.6519860, 2013. Okino, K. and Y. Ohara, Oceanic core complex in the Parece Vela Basin, Monthly chikyu 26, 10, 717-724, 2004. Ohara, Y. and K. Okino, Tectonic evolution of the southern Parece Vela Basin, Monthly Chikyu 26, 10, 711-716, 2004. Ohara, Y., K. Okino, J. E. Snow, and KR03-01Shipboard Scientific Party, Preliminary report of Kairiei KR03-01 cruise: amagmatic tectonics and lithospheric composition of the Parece Vela Basin, InterRidge News, 12(1), 27-29, 2003. [PDF]
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