Shibuya, T., Yoshizaki, M., Sato, M., Shimizu, K., Nakamura, K., Omori, S., Suzuki, K., Takai, K., Tsunakawa, H., & Maruyama, S. (2015). Hydrogen-rich hydrothermal environments in the Hadean ocean inferred from serpentinization of komatiites at 300 °C and 500 bar. Progress in Earth and Planetary Science, 2, 46.

Yasukawa, K., Nakamura, K., Fujinaga, K., Machida, S., Ohta, J., Takaya, Y., & Kato, Y. (2015). Rare-earth, major, and trace element geochemistry of deep-sea sediments in the Indian Ocean: Implications for the potential distribution of REY-rich mud in the Indian Ocean. Geochemical Journal, 49(6), 621–635

Takaya, Y., Fujinaga, K., Yamagata, N., Araki, S., Maki, R., Nakamura, K., Iijima, K., & Kato, Y. (2015). Chemical leaching of rare earth elements from highly REY-rich mud. Geochemical Journal, 49(6), 637–652

Tokumaru, A., Nozaki, T., Suzuki, K., Goto, K. T., Chang, Q., Kimura, J.-I., Takaya, Y., Kato, Y., Usui, A., & Urabe, T. (2015). Re-Os isotope geochemistry in the surface layers of ferromanganese crusts from the Takuyo Daigo Seamount, northwestern Pacific Ocean. Geochemical Journal, 49(3), 233–241.

Nakamura, K., Kawagucci, S., Kitada, K., Kumagai, H., Takai, K., & Okino, K. (2015). Water column imaging with multibeam echo-sounding in the mid-Okinawa Trough: Implications for distribution of deep-sea hydrothermal vent sites and the cause of acoustic water column anomaly. Geochemical Journal, 49(6), 579–596.

Kasaya, T., Machiyama, H., Kitada, K., & Nakamura, K. (2015). Trial exploration for hydrothermal activity using acoustic measurements at the North Iheya Knoll. Geochemical Journal, 49(6), 597–602.

Morishita, T., Nakamura, K., Shibuya, T., Kumagai, H., Sato, T., Okino, K., Sato, H., Nauchi, R., Hara, K., & Takamaru, R. (2015). Petrology of peridotites and related gabbroic rocks rround the kairei hydrothermal field in the central Indian ridge. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept.

Yamanaka, T., Nagashiov, H., Nishio, R., Kondo, K., Noguchi, T., Okamura, K., Nunoura, T., Makita, H., Nakamura, K., Watanabe, H., Ijiri, A., & Sunamura, M. (2015). The Tarama Knoll: Geochemical and Biological Profiles of Hydrothermal Activity. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept.

Toki, T., Ishibashi, J.-I., Noguchi, T., Tawata, M., Tsunogai, U., Yamanaka, T., & Nakamura, K. (2015). Data reports: Chemical and isotopic compositions of hydrothermal fluids at snail, archaean, pika, and urashima sites in the Southern Mariana trough. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept.

Nakamura, K., Sato, H., Fryer, P., & Urabe, T. (2015). Drilling Reports: Petrography and Geochemistry of Basement Rocks Drilled from Snail, Yamanaka, Archaean, and Pika Hydrothermal Vent Sites at the Southern Mariana Trough by Benthic Multi-coring System (BMS). In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept.

Nakamura, K., & Takai, K. (2015). Geochemical constraints on potential biomass sustained by subseafloor water–rock interactions. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept.

Nakamura, K., & Takai, K. (2015). Indian Ocean hydrothermal systems: Seafloor hydrothermal activities, physical and chemical characteristics of hydrothermal fluids, and vent-associated biological communities. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept.

Sato, H., Nakamura, K., Kumagai, H., Senda, R., Morishita, T., Tamura, A., & Arai, S. (2015). Petrology and geochemistry of mid-ocean ridge basalts from the southern central Indian ridge. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept.

Okino, K., Nakamura, K., & Sato, H. (2015). Tectonic background of four hydrothermal fields along the central Indian ridge. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept.

Türke, A., Nakamura, K., & Bach, W. (2015). Palagonitization of Basalt Glass in the Flanks of Mid-Ocean Ridges: Implications for the Bioenergetics of Oceanic Intracrustal Ecosystems. Astrobiology, 15(10), 793–803.

Sanfilippo, A., Morishita, T., Kumagai, H., Nakamura, K., Okino, K., Hara, K., Tamura, A., & Arai, S. (2015). Hybrid troctolites from mid-ocean ridges: Inherited mantle in the lower crust. Lithos, 232, 124–130.

Machida, S., Hirano, N., Sumino, H., Hirata, T., Yoneda, S., & Kato, Y. (2015). Petit-spot geology reveals melts in upper-most asthenosphere dragged by lithosphere. Earth and Planetary Science Letters, 426, 267–279.

Nakamura, K., Fujinaga, K., Yasukawa, K., Takaya, Y., Ohta, J., Machida, S., Haraguchi, S., & Kato, Y. (2015). REY-Rich Mud: A Deep-Sea Mineral Resource for Rare Earths and Yttrium. In Handbook on the Physics and Chemistry of Rare Earths Vol. 46, 79-127.

Takaya, Y., Nakamura, K., & Kato, Y. (2015). Dissolution of altered tuffaceous rocks under conditions relevant for CO2 storage. Applied Geochemistry, 58, 78–87


Takai, K., Nakamura, K., LaRowe, D., & Amend, J. P. (2014). Life at Subseafloor Extremes. In Developments in Marine Geology (Vol. 7) 149-174

Eliwa, H. A., Breitkreuz, C., Murata, M., Khalaf, I. M., Bühler, B., Itaya, T., Takahashi, T., Hirahara, Y., Miyazaki, T., Kimura, J.-I., Shibata, T., Koshi, Y., Kato, Y., Ozawa, H., Daas, M. A., & El Gameel, K. (2014). SIMS zircon U-Pb and mica K-Ar geochronology, and Sr-Nd isotope geochemistry of Neoproterozoic granitoids and their bearing on the evolution of the north Eastern Desert, Egypt. Gondwana Research, 25(4), 1570–1598

Suzuki, K., Yamamoto, S., Sawaki, Y., Aoki, K., Omori, S., Kon, Y., Hirata, T., Li, Y., Takaya, Y., Fujinaga, K., Kato, Y., & Maruyama, S. (2014). Zircon U-Pb dating from the mafic enclaves in the Tanzawa Tonalitic Pluton, Japan: Implications for arc history and formation age of the lower-crust. Lithos, 196197, 301–320.

Yamaguchi, A., Ishikawa, T., Kato, Y., Nozaki, T., Meneghini, F., Rowe, C. D., Moore, J. C., Tsutsumi, A., & Kimura, G. (2014). Fluid-rock interaction recorded in black fault rocks in the Kodiak accretionary complex, Alaska. Earth, Planets and Space, 66, 58

Nozaki, T., Kato, Y., & Suzuki, K. (2014). Re-Os geochronology of the Hitachi volcanogenic massive sulfide deposit: The oldest ore deposit in Japan. Economic Geology, 109(7), 2023–2034. 

Kashiwabara, T., Toda, R., Fujinaga, K., Honma, T., Takahashi, Y., & Kato, Y. (2014). Determination of host phase of lanthanum in deep-sea REY-rich mud by XAFS and μ-XRF using high-energy synchrotron radiation. Chemistry Letters, 43(2), 199–200. 

Yasukawa, K., Liu, H., Fujinaga, K., Machida, S., Haraguchi, S., Ishii, T., Nakamura, K., & Kato, Y. (2014). Geochemistry and mineralogy of REY-rich mud in the eastern Indian Ocean. Journal of Asian Earth Sciences, 93, 25–36

Nakamura, K., & Takai, K. (2014). Theoretical constraints of physical and chemical properties of hydrothermal fluids on variations in chemolithotrophic microbial communities in seafloor hydrothermal systems. Progress in Earth and Planetary Science, 1, 5.  ** Progress in Earth and Planetary Science (PEPS) Most Cited Paper Awards **


Nakamura, K., Toki, T., Mochizuki, N., Asada, M., Ishibashi, J.-I., Nogi, Y., Yoshikawa, S., Miyazaki, J.-I., & Okino, K. (2013). Discovery of a new hydrothermal vent based on an underwater, high-resolution geophysical survey. Deep-Sea Research Part I: Oceanographic Research Papers, 74, 1–10

Kato, S., Rejishkumar, V. J., Yamagishi, A., Shibuya, T., Nakamura, K., Suzuki, K., Shibuya, T., Nakamura, K., Suzuki, K., Suzuki, K., Suzuki, K., & Kato, S. (2013). Elemental dissolution of basalts with ultra-pure water at 340°c and 40 MPa in a newly developed flow-type hydrothermal apparatus. Geochemical Journal, 47(1), 89–92.

Beedessee, G., Watanabe, H., Ogura, T., Nemoto, S., Yahagi, T., Nakagawa, S., Nakamura, K., Takai, K., Koonjul, M., & Marie, D. E. P. (2013). High connectivity of animal populations in deep-sea hydrothermal vent fields in the central indian ridge relevant to its geological setting. PLoS ONE, 8(12), e81570.

Okino, K., Nakamura, K., Nogi, Y., Fujii, M., Mochizuki, N., Asada, M., & Honsho, C. (2013). Discovery and characterization of a new hydrothermal vent based on magnetic and acoustic surveys. 2013 IEEE International Underwater Technology Symposium, UT 2013.

Li, Y.-B., Kimura, J.-I., Machida, S., Ishii, T., Ishiwatari, A., Maruyama, S., Qiu, H.-N., Ishikawa, T., Kato, Y., Haraguchi, S., Hirahara, Y., & Miyazaki, T. (2013). High-Mg adakite and low-Ca boninite from a bonin fore-arc seamount: Implications for the reaction between slab melts and depleted mantle. Journal of Petrology, 54(6), 1149–1175. 

Kawagucci, S., Miyazaki, J., Nakajima, R., Nozaki, T., Takaya, Y., Kato, Y., Shibuya, T., Konno, U., Nakaguchi, Y., Hatada, K., Ishibashi, J.-I., & Takai, K. (2013). Post-drilling changes in fluid discharge pattern, mineral deposition, and fluid chemistry in the Iheya North hydrothermal field, Okinawa Trough. Geochemistry, Geophysics, Geosystems, 14(11), 4774–4790

Takaya, Y., Nakamura, K., & Kato, Y. (2013). Geological, geochemical and social-scientific assessment of basaltic aquifers as potential storage sites for CO2. Geochemical Journal, 47(4), 385–396

Nozaki, T., Kato, Y., & Suzuki, K. (2013). Late Jurassic ocean anoxic event: Evidence from voluminous sulphide deposition and preservation in the Panthalassa. Scientific Reports, 3, 1889


Haraguchi, S., Ishii, T., Kimura, J.-I., & Kato, Y. (2012). The early Miocene (~25 Ma) volcanism in the northern Kyushu-Palau Ridge, enriched mantle source injection during rifting prior to the Shikoku backarc basin opening. Contributions to Mineralogy and Petrology, 163(3), 483–504

Kato, S., Nakamura, K., Toki, T., Ishibashi, J.-I., Tsunogai, U., Hirota, A., Ohkuma, M., & Yamagishi, A. (2012). Iron-based microbial ecosystem on and below the seafloor: A case study of hydrothermal fields of the Southern Mariana Trough. Frontiers in Microbiology, 3, 89.

Nakamura, K., Watanabe, H., Miyazaki, J., Takai, K., Kawagucci, S., Noguchi, T., Nemoto, S., Watsuji, T. -o., Matsuzaki, T., Shibuya, T., Bhikajee, M., & Tamaki, K. (2012). Discovery of new hydrothermal activity and chemosynthetic fauna on the Central Indian ridge at 18°-20°S. PLoS ONE, 7(3), e32965.


Kato, Y., Fujinaga, K., Nakamura, K., Takaya, Y., Kitamura, K., Ohta, J., Toda, R., Nakashima, T., & Iwamori, H. (2011). Deep-sea mud in the Pacific Ocean as a potential resource for rare-earth elements. Nature Geoscience, 4, 535–539.

Kato, Y., Fujinaga, K., & Suzuki, K. (2011). Marine Os isotopic fluctuations in the early eocene greenhouse interval as recorded by metalliferous umbers from a tertiary ophiolite in japan. Gondwana Research, 20(2–3), 594–607.

Shimizu, K., Chang, Q., & Nakamura, K. (2011). Flux-Free Fusion of Silicate Rock Preceding Acid Digestion for ICP-MS Bulk Analysis. Geostandards and Geoanalytical Research, 35(1), 45–55.

Takai, K., & Nakamura, K. (2011). Archaeal diversity and community development in deep-sea hydrothermal vents. Current Opinion in Microbiology, 14(3), 282–291.