Composition of the Primordial Ocean Just after Its Formation: Constraints from the Reactions between the Primitive Crust and a Strongly Acidic, CO₂-Rich Fluid at Elevate...

by Hisahiro Ueda, Takazo Shibuya
Published 2021-04-01

Thermodynamic Constrains on Smectite and Iron Oxide Formation at Gale Crater, Mars: Insights into Potential Free Energy from Aerobic Fe Oxidation in Lake Water–Groundwater Mixing Z...

by Sakiko Kikuchi, Takazo Shibuya
Published 2021-03-01

Weak hydrothermal carbonation of the Ongeluk volcanics: evidence for low CO2 concentrations in seawater and atmosphere during the Paleoproterozoic global glaciation

by Takazo Shibuya, Tsuyoshi Komiya, Ken Takai, Shigenori Maruyama, Michael J. Russell
Published 2017-10-01

Stable Abiotic Production of Ammonia from Nitrate in Komatiite-Hosted Hydrothermal Systems in the Hadean and Archean Oceans

by Manabu Nishizawa, Takuya Saito, Akiko Makabe, Hisahiro Ueda, Masafumi Saitoh, Takazo Shibuya, Ken Takai
Published 2021-03-01

Ar–Ar dating for hydrothermal quartz from the 2.4 Ga Ongeluk Formation, South Africa: implications for seafloor hydrothermal circulation

by Takuya Saito, Hua-Ning Qiu, Takazo Shibuya, Yi-Bing Li, Kouki Kitajima, Shinji Yamamoto, Hisahiro Ueda, Tsuyoshi Komiya, Shigenori Maruyama
Published 2018-01-01

Chemical assessment of the explosive chamber in the projector system of Hayabusa2 for asteroid sampling

by Yoshinori Takano, Keita Yamada, Chisato Okamoto, Hirotaka Sawada, Ryuji Okazaki, Kanako Sakamoto, Yoko Kebukawa, Kento Kiryu, Takazo Shibuya, Motoko Igisu, Hajime Yano, Shogo Tachibana, Hayabusa2 project team
Published 2020-07-01

Discovery of new hydrothermal activity and chemosynthetic fauna on the Central Indian Ridge at 18°-20° S.

by Kentaro Nakamura, Hiromi Watanabe, Junichi Miyazaki, Ken Takai, Shinsuke Kawagucci, Takuro Noguchi, Suguru Nemoto, Tomo-o Watsuji, Takuya Matsuzaki, Takazo Shibuya, Kei Okamura, Masashi Mochizuki, Yuji Orihashi, Tamaki Ura, Akira Asada, Daniel Marie, Meera Koonjul, Manvendra Singh, Girish Beedessee, Mitrasen Bhikajee, Kensaku Tamaki
Published 2012-01-01

Deepest and hottest hydrothermal activity in the Okinawa Trough: the Yokosuka site at Yaeyama Knoll

by Junichi Miyazaki, Shinsuke Kawagucci, Akiko Makabe, Ayu Takahashi, Kazuya Kitada, Junji Torimoto, Yohei Matsui, Eiji Tasumi, Takazo Shibuya, Kentaro Nakamura, Shunsuke Horai, Shun Sato, Jun-ichiro Ishibashi, Hayato Kanzaki, Satoshi Nakagawa, Miho Hirai, Yoshihiro Takaki, Kyoko Okino, Hiromi Kayama Watanabe, Hidenori Kumagai, Chong Chen
Published 2017-01-01