PROFILE

Ohta, J., Nozaki, T., Sato, H., Ashida, K., and Kato, Y. Precise and accurate analytical method for determination of osmium isotope ratios at the 1–15 pg level by MC-ICP-MS equipped with sparging introduction and high-sensitivity discrete dynode-type ion-counting detectors. Joural of Analytical Atomic Spectrometry, accepted.

Fujinaga, K., Nakamura, K., Ohta, J., Yano, M., Kuwahara, Y., Yasukawa, K., Takaya, Y., Nakayama, K., Nozaki, T. and Kato Y. Umber as a lithified REY-rich mud in Japanese accretionary complexes and its implications for the osmium isotopic composition of Middle Cretaceous seawater. Ore Geology Reviews 142, 104683 (2022). https://doi.org/10.1016/j.oregeorev.2021.104683

Tanaka, E., Yasukawa, K., Nakamura, K., Ohta, J., Miyazaki, T., Vaglarov, B. S., Machida, S., Fujinaga, K., Iwamori, H. and Kato, Y. Secular variations in provenance of sedimentary components in the western North Pacific Ocean constrained by Sr isotopic features of deep-sea sediments. Geochemistry, Geophysics, Geosystems 23, e2021GC009729 (2021). https://doi.org/10.1029/2021GC009729

Ishida, M., Nozaki, T., Takaya, Y., Ohta, J., Chang, Q., Kimura, J. -I., Nakamura, K. and Kato, Y. Re–Os geochemistry of hydrothermally altered dacitic rock in a submarine volcano at Site U1527, IODP Expedition 376: Implications for the Re cycle in intraoceanic arcs. Deep-Sea Ressearch Part I, 180, 103687 (2021). https://doi.org/10.1016/j.dsr.2021.103687

Ohta, J., Yasukawa, K., Nakamura, K., Fujinaga, K., Iijima, K. and Kato, Y. Geological features and resource potential of deep-sea mud highly enriched in rare-earth elements in the Central Pacific Basin and the Penrhyn Basin. Ore Geology Reviews 139, 104440 (2021). https://doi.org/10.1016/j.oregeorev.2021.104440

PROFILE

大田隼一郎

Junichiro Ohta

博士（工学）

Ph.D. (Engineering)

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