Publication

2025

• "Field occurrence and zircon U–Pb ages of Middle Miocene Juniko Tuff, southwestern coast of Tsugaru province, Aomori Prefecture"
  Kanazashi, Y., Orihashi, Y., Niki, S., Iwano, H., Sasaki, M. and Hirata, T.
  The Journal of the Geological Society of Japan 131, 489–506 (2025).

  • DOI: 10.5575/geosoc.2025.0038
• "Temporal changes in Angkorian ironmaking technology in Northern Cambodia during the 10th–14th centuries"
  Azami, K., Uchida, E., Mizumori, A., Kobayashi, Y., Kuriyama, K., Nakamura, T. and Kato, Y.
  Scientific Reports 15, 43699 (2025).

  • DOI: 10.1038/s41598-025-27581-x
• "Hybrid Mining of Rare-Earth Elements-Rich Mud and Polymetallic Nodules by Air-Lift Pump in Deep Sea around Minamitorishima Island"
  Shimizu, Y., Sugihara, M., Takaya, Y., Fujinaga, K., Nakamura, K. and Kato, Y.
  Journal of MMIJ 141, 132-142 (2025).

  • DOI: 10.2473/journalofmmij.MMIJ-2025-027
• "Sample and data management of microfossil collections: case of radiolarian specimens at Niigata University, Japan"
  Ito, T. and Matsuoka, A.
  Revue de Micropaléontologie 89, 100875 (2025).

  • DOI: 10.1016/j.revmic.2025.100875
• "Analyses across a mid-ocean ridge give the scale of plume-fed heterogeneity"
  Machida, S., Okino, K., Ashida, K., Yoneda, S. and Kato, Y.
  Lithos 514-515, 108175 (2025).

  • DOI: 10.1016/j.lithos.2025.108175
• "Carbon isotope stratigraphy for regional correlation of the Upper Jurassic–Lower Cretaceous Tetori Group in Japan"
  Kamimura, M., Nagata, M., Ando, T., Niki, S., Hirata, T. and Hasegawa, T.
  Cretaceous Research 175, 106164 (2025).

  • DOI: 10.1016/j.cretres.2025.106164
• "Petit-spot hydrothermal systems simulated: Fluid evolution, chemical fluxes, and chemoautotrophic habitability"
  Azami, K., Koyama, K., Saito, T., Shibuya, T., Kinoshita, S., Machida, S., Kato, Y. and Uchida, E.
  Geochimica et Cosmochimica Acta 408, 345-357 (2025).

  • DOI: 10.1016/j.gca.2025.09.008
• "Oxygen isotope-magnetostratigraphy combined with zircon U–Pb dating for the Upper Pliocene composite marine succession in central Japan: Implications for the warm Pliocene deep-water current system on the northwestern Pacific margin"
  Haneda, Y., Utsunomiya, M., Iwano, H., Danhara, T., Hirata, T., Hosoi, J., Nakatani, K., Kubota, Y. and Okada, M.
  Newsletters on Stratigraphy 58, 265–289 (2025).

  • DOI: 10.1127/nos/2025/0874
• "Magma Differentiation, Phase Separation, and Volatiles: Factors Controlling Chemistry of Submarine Hydrothermal Fluids"
  Azami, K.
  Geochemistry, Geophysics, Geosystems 26, e2025GC012636 (2025).

  • DOI: 10.1029/2025GC012636
• "Mechanism of elemental fractionation during femtosecond laser ablation revealed by high-time-resolution MC-ICP-MS analysis of 208Pb/232Th ratios in single particles"
  Niki, S. and Hirata, T.
  Journal of Analytical Atomic Spectrometry 40, 2716–2724 (2025).

  • DOI: 10.1039/D5JA00016E
• "Integrated acoustic identification of a petit-spot volcanic field in the oldest Pacific plate"
  Machida, S., Kaneko, J., Inose, K., Nozaki, T., Iijima, K. and Hirano, N.
  Scientific Reports 15, 32378 (2025).

  • DOI: 10.1038/s41598-025-15806-y
• "Intermediate water sources and sediment provenance in the high-latitude South Pacific Ocean (Campbell Plateau) during the Paleogene"
  Tanaka, E., Yasukawa, K., Dunlea, A. G., Hendy, I., Miyazaki, T. and Vaglarov, B. S.
  Geochemistry, Geophysics, Geosystems 26, e2025GC012314 (2025).

  • DOI: 10.1029/2025GC012314
• "Long-lasting thermal activity on the brachinite parent body revealed by mineralogy, REE chemistry, and U–Pb dating of Ca-phosphates in Northwest Africa 10932"
  Ito, K.T.M., Niki, S., Hasegawa, H., Kurihara, K., Morohoshi, T., Mikouchi, T., Hirata, T., Bizzarro, M. and Iizuka, T.
  Geochimica et Cosmochimica Acta 402, 173–187 (2025).

  • DOI: 10.1016/j.gca.2025.05.022
• "Exploring seafloor mineral resources using AI: Detecting signatures of hydrothermal activities from acoustic images"
  Mimura, K. and Nakamura, K.
  THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN 81, 559-565 (2025).

  • DOI: 10.20697/jasj.81.8_559
• "Origin of ferromanganese deposits in the Jurassic to Cretaceous accretionary complex: Implications for the deep-sea environment around ocean anoxic events"
  Azami, K., Fujinaga, K., Hirano, N. and Kato, Y.
  Ore Geology Reviews 182, 106661 (2025).

  • DOI: 10.1016/j.oregeorev.2025.106661
• "Zircon Crystallization Timings of Granitoids in the Aoyama Area, Ryoke Belt, Southwest Japan"
  Higashino, F., Kawakami, T., Kudo, S., Hirata, T. and Sakata, S.
  Island Arc 34, e70022 (2025).

  • DOI: 10.1111/iar.70022
• "Zircon U–Pb dates from Lower Miocene rhyolitic welded tuffs in the Hokuriku region, central Japan: Implications for silicic volcanism prior to the opening of the Sea of Japan"
  Yamada, R., Nagata, M., Niki, S. and Hirata, T.
  Journal of Mineralogical and Petrological Sciences 120, 015 (2025).

  • DOI: 10.2465/jmps.250214
• "Dual mass spectrometers with plasma-based ion sources for multiplex imaging of elements and biomolecules"
  Khoo, H.H., Kubota, A., Matsukawa, T. and Hirata, T.
  Journal of Analytical Atomic Spectrometry 40, 2016–2025 (2025).

  • DOI: 10.1039/D5JA00039D
• "Changes in the Redox State of the Nishinoshima Magmatic System During and After the 2020 Explosive Eruption"
  Yoshida, K. K., Tada, N., Sato, T., Tanaka, E., Ishibashi, H., Mori, Y., Maeno, F., Tamura, Y. and Ono, S.
  Island Arc 34, e70021 (2025).

  • DOI: 10.1111/iar.70021
• "Intact Pacific oceanic crust captured as mafic xenoliths in a petit-spot volcano"
  Mikuni, K., Hirano, N., Machida, S., Akizawa, N., Yoneda, S., Tamura, A., Mizukami, T., Kato, Y. and Morishita, T.
  Marine Geology 483, 107497 (2025).

  • DOI: 10.1016/j.margeo.2025.107497
• "Depositional age of the Lower–Middle Miocene Tanabe Group constrained by detrital zircon U–Pb ages and its implications for stress field"
  Abe, N., Hoshi, H., Haji, T., Sato, K., Niki, S., Hirata, T., Iwano, H. and Danhara, T.
  The Journal of the Geological Society of Japan 131, 59-70 (2025).

  • DOI: 10.5575/geosoc.2025.0003
• "Revision of the age of the “Upper Miocene” Mitoku Formation in Misasa Town, south-central Tottori Prefecture, western Japan"
  Yabe, A., Saito, T., Shimizu, M., Kobayashi, M., Danhara, T., Iwano, H. and Hirata, T.
  The Journal of the Geological Society of Japan 131, 77-86 (2025).

  • DOI: 10.5575/geosoc.2025.0005
• "Deep-sea rare-earth mineral resources formed in the early Eocene hothouse ocean: Insights from deep learning-based microfossil observations"
  Mimura, K., Kitazawa, T., Nakamura, K., Yasukawa, K., Kuwahara, Y., Ohta, J. and Kato, Y.
  Paleoceanography and Paleoclimatology 40, e2024PA004938 (2025).

  • DOI: 10.1029/2024PA004938
• "Elemental and isotopic analyses of individual nanoparticles using single particle inductively coupled plasma mass spectrometry"
  Nakazato, M. and Hirata, T.
  Analytical Sciences 41, 1185–1201 (2025).

  • DOI: 10.1007/s44211-025-00766-0
• "Geochemical Variations in Sedimentary Records of Oxygen-Depleted Marine Environments in Representative Geological Periods: New Perspectives From an Independent Component Analysis"
  Yano, M., Yasukawa, K., Nakamura, K., Kuroda, J., Ikehara, M., Iwamori, H. and Kato, Y.
  Paleoceanography and Paleoclimatology 40, e2024PA005004 (2025).

  • DOI: 10.1029/2024PA005004
• "Study on Stone Blocks Used for Resthouses Along the Northwest Royal Road Connecting Angkor in Cambodia and Phimai in Thailand Based on On-Site Magnetic Susceptibility Measurements and Chemical Composition Analyses"
  Uchida, E., Kobayashi, Y., Mizumori, A., Kuriyama, K. and Azami, K.
  Heritage 8, 106 (2025).

  • DOI: 10.3390/heritage8030106
• "A study on the possible construction order of the temples in Mahendraparvata on the summit of Kulen Mountain, Cambodia, based on brick and sandstone materials"
  Uchida, E., Mizumori, A., Kuriyama, K. and Azami, K.
  Heritage Science 13, 15 (2025).

  • DOI: 10.1038/s40494-025-01576-3
• "Numerical Simulation on Hybrid Lifting Operation of Polymetallic Nodules and Rare-Earth Elements-Rich Mud by Air-Lift Pump in Deep Sea around Minamitorishima Island"
  Shimizu, Y., Sugihara, M., Fujinaga, K., Nakamura, K. and Kato, Y.
  Journal of Marine Science and Engineering 13, 267 (2025).

  • DOI: 10.3390/jmse13020267