Publication

2026

• "Re–Os isotope constraints on the depositional age and regional distribution of the Miocene impact ejecta layer around Minamitorishima Island, western North Pacific"
  Mindaleva, D., Nozaki, T., Mimura, K., Yano, M., Ohta, J., Motswaiso, F.S., Iijima, K., Yasukawa, K., Nakamura, K. and Kato, Y.
  Journal of Asian Earth Sciences 312, 107316 (2026).

  • DOI: 10.1016/j.jseaes.2026.107316
• "A mantle-xenolith-bearing volcanic dropstone off Cape Darnley records long-distance iceberg transport along the Antarctic Coastal Current"
  Sato, H., Machida, S., Ashida, K. and Fujii, M.
  Polar Research, in press (2026).
• "Along-strike dredging reveals a crust-dominated section at the Marie Celeste Fracture Zone, Central Indian Ridge"
  Nimura, K., Machida, S., Ashida, M., Harada, A., Hirano, N., Inoue, S., Ishikawa, A., Li, Y., Matsuyama, K., Michibayashi, K., Morishita, T., Nakano, T., Niwa, Y., Sano, M. and Okino, K.
  Progress in Earth and Planetary Science, in press (2026).
• "Alteration zone and copper mineralization related to the Pliocene Kogarasu Granodiorite in the upper stream of Nishizawa Valley, Yamanashi Prefecture"
  Miyashita, A., Hayashi, T., Murakami, H. and Yano, M.
  Shigen-Chishitsu 76, 43-55 (2026).

  • DOI: 10.11456/shigenchishitsu.76.43
• "Mineralogical and lead isotopic study on the Higashi-Aogashima Knoll Caldera hydrothermal site, Japan: Implications for the gold enrichment mechanism"
  Ishida, K., Ishida, M., Torimoto, J., Chang, Q., Machida, S., Takaya, Y., Ishibashi, J.-I., Makabe, A., Yamashita, M., Yasukawa, K., Kato, Y., Mindaleva, D., Gonoi, Y. and Nozaki, T.
  AOGS2026 23rd Annual Meeting (Fukuoka, Japan) (2026).
• "Os Isotopic Evidence for an Ancient Depleted Mantle Component Beneath Northwestern Pacific Petit-spot Volcanoes"
  Niwa, Y., Akizawa, N., Alard, O., Greau, Y., Hirano, N., Machida, S. and Ishikawa, A.
  AOGS2026 23rd Annual Meeting (Fukuoka, Japan) (2026).
• "Geochemical Heterogeneity of the Oceanic Asthenosphere Inferred from Osmium Isotopic Compositions of Northwestern Pacific Petit-spot Volcanoes"
  Mikuni, K., Ishikawa, A., Machida, S., Hirano, N., Akizawa, N. and Yokoyama, T.
  AOGS2026 23rd Annual Meeting (Fukuoka, Japan) (2026).
• "Temporal Variability in Melt Supply and Spreading at the Marie Celeste Transform Fault, Central Indian Ridge"
  Okino, K., Fujii, M., Tani, K., Machida, S. and Nimura, K.
  AOGS2026 23rd Annual Meeting (Fukuoka, Japan) (2026).
• "Osmium Isotope and Highly Siderophile Element Constraints on the Cretaceous/Paleogene Boundary in Western Pacific Pelagic Clay"
  Sato, H., Usui, Y., Mimura, K., Ishikawa, A., Yasukawa, K., Ohta, J. and Kato, Y.
  Geochemistry, Geophysics, Geosystems 27, e2026GC013078 (2026).

  • DOI: 10.1029/2026GC013078
• "The Jurassic-Cretaceous Boundary and the Radiolarian Biostratigraphic Research on the Bosso Valley Section, Northern Apennines (central Italy)"
  Li, X., Matsuoka, A., Bertinelli, A. and Chiari, M.
  STRATI 2026 5th International Congress on Stratigraphy (Suzhou, China) (2026).
• "Progress on the Definition and Global Correlation of the Jurassic/Cretaceous Boundary – Berriasian Working Group Report"
  Grabowski, J., Lodowski, D., Aguirre-Urreta, B., Alsen, P., Deconinck, J.-F., Elbra, T., Erba, E., Frau, C., Galloway, J., Kowal-Kasprzyk, J., Li, G., Martinez, M., Matsuoka, A., Mutterlose, J., Pellenard, P., Petrova, S., Szives, O. and Verreussel, R.
  STRATI 2026 5th International Congress on Stratigraphy (Suzhou, China) (2026).
• "Applying Deep-Learning-Based Sonar Image Analysis to Exploration of Hydrothermal Activities"
  Mimura, K., Kaneko, J., Nozaki, T., Kasaya, T., Sugimoto, Y., Genda, T. and Nakamura, K.
  IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 19, 19674-19683 (2026).

  • DOI: 10.1109/JSTARS.2026.3698356
• "Early Eocene barium isotopic record from the Pacific Ocean, and its implication for paleo-productivity during the Eocene Hyperthermals"
  Kuwahara, Y., Yamamoto, Y., Miyazaki, T., Yasukawa, K., Vaglarov, B.S., Tanaka, E., Filippi, G., Luciani, V., Nakamura, K. and Kato, Y.
  C2C International Workshop for deciphering the Climate System in the Cretaceous-Paleogene “Hothouse” at Kochi (Kochi, Japan, May 22, 2026) (2026).

  Invited
• "Decoding multielemental signatures in bulk-sediment geochemistry during the Early Paleogene Hothouse on the Campbell Plateau, South Pacific Ocean"
  Yasukawa, K., Tanaka, E., Dunlea, A.G., Hendy, I., Kuwahara, Y., Röhl, U., Ikehara, M., Nakamura, K. and Kato, Y.
  C2C International Workshop for deciphering the Climate System in the Cretaceous-Paleogene “Hothouse” at Kochi (Kochi, Japan, May 22, 2026) (2026).

  Invited
• "Melt-poor spreading in the Shikoku back-arc basin: Widespread occurrence of oceanic core complexes and associated features"
  Ohara, Y., Okino, K., Akizawa, N., Basch, V., Cuffaro, M., Fujii, M., Harigane, Y., Hirauchi, K-I., Inoue, S., Ishizuka, O., Machida, S., Michibayashi, K., Moriguchi, T., Nimura, K., Oyanagi, R., Sanfilippo, A., Sani, C., Sen, A., Snow, J.E., Tani, K. and Yamashita, H.
  Progress in Earth and Planetary Science 13, 32 (2026).

  • DOI: 10.1186/s40645-026-00818-7
• "Unusual intraplate volcanism at the Conrad Rise, Indian Ocean: the role of inherited continental lithosphere"
  Sato, H., Machida, S., Ishizuka, H., Fujii, M., Sato, T. and Nogi, Y.
  EGU General Assembly 2026 (Vienna, Austria) (2026).
• "Phosphorus cycling and REE enrichment in pelagic clay: Insights from a coupled Nd–P mass-balance approach"
  Matsunami, R., Yasukawa, K., Nakamura, K. and Kato, Y.
  EGU General Assembly 2026 (Vienna, Austria) (2026).
• "Chemostratigraphy of REE-rich mud around Minamitorishima Island: A novel stratigraphic approach based on multi-element data analysis"
  Yasukawa, K., Tanaka, E., Nakamura, K. and Kato, Y.
  Annual Meeting of The Sedimentological Society of Japan 2026 (2026).

  Invited
• "Direct Detection of Volatile Organic Compounds Through Cationization Using ICP-MS/MS"
  Hirata, T., Kinoshita, C., Uezono, M. and Khoo, H.H.
  Mass Spectrometry 15, A0187 (2026).

  • DOI: 10.5702/massspectrometry.A0187
• "Pacific abyssal sedimentary sinks of seawater potassium and magnesium through the Cenozoic"
  Dunlea, A.G., Santiago Ramos, D.P., Yasukawa, K., Tanaka, E. and Kato, Y.
  Geochimica et Cosmochimica Acta 413, 91-103 (2026).

  • DOI: 10.1016/j.gca.2025.11.022
• "Simultaneous Detection of Elements and Molecules using Laser Ablation-ICP-MS/MS"
  Hirata, T. and Kinoshita, C.
  Analytical Sciences 42, 121-128 (2026).

  • DOI: 10.1007/s44211-025-00862-1
• "Resolving the syn-genetic mineralization age of a metamorphosed Archean VHMS deposit using multiple geochronological approaches"
  Dana, C.D.P., Hollis, S.P., Tavazzani, L., Chelle-Michou, C., Glorie, S., Kuwahara, Y., Mimura, K., Yano, M., Ohta, J., Selby, D., Kato, Y., Pashley, V., James, M. and Podmore, D.
  Precambrian Research 432, 107968 (2026).

  • DOI: 10.1016/j.precamres.2025.107968
• "Large-scale polymetallic mineralization driven by long-lived magmatic-hydrothermal activity and subducted sediment influx: A case study from Toyoha, NE Japan"
  Ishida, M., Hieda, Y., Araki, S., Fujinaga, K., Shimizu, T., Tanimizu, M., Broderick, C., Nakamura, H., Iwamori, H., Machida, S., Yoneda, S., Nakamura, K. and Kato, Y.
  Journal of Geochemical Exploration 280, 107887 (2026).

  • DOI: 10.1016/j.gexplo.2025.107887