Wakai, S., Ogawa, M., Kobayashi, K., Okada, S. and Nozaki, T.: Nickel-recovering technology from stainless steel based on microbiologically influenced corrosion reaction. EUROCORR 2026, September, Dublin, 2026.
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.: Mineralogical and lead isotopic study on the Higashi-Aogashima Knoll Caldera hydrothermal site, Japan: Implications for the gold enrichment mechanism. AOGS 2026, August, Fukuoka, 2026.
Nozaki, T., Ouchi, M., Tanigawa, S., Ishida, K., Torimoto, J., Gonoi, Y., Ushikubo, T., Shimizu, K. and Nakayama, K.: In-situ S isotope composition of pyrite from the Shimokawa and Makimine volcanogenic massive sulfide deposits, Japan. AOGS 2026, August, Fukuoka, 2026.
Gonoi, Y., Arai, S., Kubozono, Y., Sugino, S., Torimoto, J., Oshika, J., Sanematsu, K., Ishida, A. and Nozaki, T.: Lateral and vertical variations of mineralization and alteration in the Hoshino epithermal gold-silver system, Northern Kyushu, Japan. AOGS 2026, August, Fukuoka, 2026.
2025年
Nozaki, T.: Importance of the microbial activity at the initial formation process of subseafloor hydrothermal deposit from the view of the in-situ sulfur isotope analysis. International Workshop on Magmatic-Hydrothermal Processes, December, Seoul, 2025. ☆招待講演☆
Morishita, Y., Nozaki, T., Torimoto, J., Takahata, N. and Takaya, Y.: SIMS discovers invisible gold in pyrite from the high-grade seafloor hydrothermal deposits in the Higashi-Aogashima caldera, Izu-Ogasawara arc, Japan. Underwater Mineral Conference 2025, November, Florida, 2025.
Gonoi, Y., Ito, J., Yonezu, K., Imai, A., Ishida, A. and Nozaki, T.: Advanced argillic alteration and geochemistry of alunite in the Iriki gold exploration area, Hokusatsu, Japan. SEG Conference 2025, September, Brisbane, 2025.
Ishibashi, J.-i., Toyoda, S., Yonezu, K., Nozaki, T., Takaya, Y., Yoshinaga, H. and Takamiya, K.: Application of INAA to trace metal analysis of polymetallic sulfide ores collected from seafloor massive sulfide deposits. 7th Asia-Pacific Symposium on Radiochemistry 2025, September, Matsue, Japan.
Nozaki, T., Nakayama, K. and Kato, Y.: Definition of Besshi-type VMS deposits based on their geological, geochronological features and tectonic settings. 18th SGA Biennial Meeting, Golden, August, 2025.
Otake, T., Hoshi, A., Nakayama, K., Araoka, D., Kikuchi, R., Fuchida, S. and Nozaki, T.: Mg isotopic evidence for subseafloor hydrothermal replacement in the Shimokawa massive sulfide deposit, Hokkaido, Japan. Goldschmidt 2025, July, Plague, 2025.
Kobayashi, K., Ogawa, M., Nozaki, T. and Wakai, S.: Combined molecular and mineralogical analyses on the microbial community structure in rock samples from Higashi-Aogashima Knoll Caldera hydrothermal field. Goldschmidt 2025, July, Plague, 2025.
Wakai, S., Kobayashi, K., Ogawa, M. and Nozaki, T.: Corrosion of stainless steel by microorganisms from deep sea rock samples. ASM Microbe 2025, July, Los Angels, 2025.
Nozaki, T.: In-situ metal recovery and cultivation tests at hot spring and seafloor hydrothermal site. 17th JAFoE symposium, June, Sandiego, 2025. ☆招待講演☆ ☆Most Interactive Presenter’s Award受賞☆
Jeon, Y., Seo, J. H., Nozaki, T., Guillong, M. and Park, S.-H.: Exceptionally high-grade gold mineralization in a seafloor hydrothermal system: Insights from fluid inclusion studies of Higashi-Aogashima Knoll Caldera, Japan. 2025 Joint Conference of the Geological Science & Technology of Korea, April, Busan, 2025.
Domestic conferences (since 2025) 2026年
Ishida, M., Nozaki, T., Takaya, Y., Ohta, J., Chang, Q., Kimura, J.-I., Nakamura, K. and Kato, Y.: Magmatic input or wall-rock leaching? A Re-Os perspective on the metal sources of arc-related hydrothermal systems. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Wakai, S., Kobayashi, K., Ogawa, M., Yoshida, Y., Rey-Samper, J. J., Tornos, F. and Nozaki, T.: Metagenomic insights into microbial ecology of rocks and acid mine drainage from volcanogenic massive sulfide deposit. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Kobayashi, K., Ogawa, M., Nozaki, T. and Wakai, S.: Investigation of iron and/or sulfur oxidizing bacteria in the rock samples from the Higashi-Aogashima Knoll Caldera hydrothermal field. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Toyoda, S., Ishibashi, J.-i. and Nozaki, T.: 228Ra/226Ra in the present-day hydrothermal fluid: a method to estimate the contribution from extinct 228Ra. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Chang, Q., Nozaki, T., Hagiwara, Y., Chen, M., Ishida, A. and Hanyu, T.: In-situ analyses of sulfur isotopes and trace-element compositions in sulfide minerals using fsLA-ICP-MS. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Martin, A. J., Martinez, C. Y., Nozaki, T. and Jamieson, J. W.: Gold enrichment and deportment at the Higashi-Aogashima Knoll Caldera, Japan. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Toda, K., Okamoto, A., Otgonbayar, D., Sato, Y., Takahashi, M., Ihara, T. and Nozaki, T.: Thermoelectric conversion in seafloor hydrothermal vents: Insights from three-dimensional analysis of sulfide chimneys. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Yamano, H., Minami, M., Iijima, Y., Oda, T., Niina, A., Nozaki, T., Nagumo, N., Matta, N. and Suga, T.: Toward revision of the Dream Roadmap for Human Geoscience. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Mindaleva, D., Nozaki, T., Mimura, K., Yano, M., Ohta, J., Motswaiso, F. S., Iijima, K., Yasukawa, K., Nakamura, K. and Kato, Y.: Regional distribution of Miocene impact ejecta layers around Minamitorishima Island revealed by the Os isotope. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Jeon, Y., Seo, J. H., Nozaki, T., Guillong, M. and Park, S.-H.: Unravelling the gold precipitation in the seafloor hydrothermal system: Insights from fluid inclusion microanalysis. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
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.: Gold enrichment mechanism at the Higashi-Aogashima Knoll Caldera hydrothermal field from the aspect of Pb isotope. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Arai, S., Kubozono, Y., Sugino, S., Torimoto, J., Oshika, J., Sanematsu, K., Gonoi, Y. and Nozaki, T.: Characteristics of ore forming fluid and hydrothermal alteration in the Hoshino gold deposit, Northern Kyushu district. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Gonoi, Y., Hattori, I., Arai, S., Torimoto, J., Otake, T., Nagase, T., Ishibashi, J.-i. and Nozaki, T.: Subseafloor hydrothermal system at Hakurei Site, Izena Hole, middle Okinawa Trough based on the chlorite chemistry. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Nozaki, T., Ouchi, M., Tanigawa, S., Ishida, K., Torimoto, J., Gonoi, Y., Ushikubo, T., Shimizu, K. and Nakayama, K.: In-situ S isotope composition of pyrite from the Shimokawa and Makimine volcanogenic massive sulfide deposits, Japan. 日本地球惑星科学連合2026年大会 (幕張,2026年5月).
Wakai, S., Kobayashi, K., Ogawa, M. and Nozaki, T.: On-site cultivation of deep-sea microbes using processed mineral specimens. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Toyoda, S., Kinugasa, R., Kakumoto, M., Ishibashi, J.-i. and Nozaki, T.: ESR dating of sea-floor hydrothermal barite – initial concentration of 228Ra/226Ra ratio and neutron activation analysis of Ba. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Toda, K., Okamoto, A., Otgonbayar, D., Takahashi, M., Sato, Y., Ihara, T. and Nozaki, T.: Contribution of the thermoelectric effect to power generation at seafloor hydrothermal vents revealed by natural sample observations and hydrothermal experiments. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Kobayashi, K., Ogawa, M., Nozaki, T. and Wakai, S.: Molecular and mineralogical analyses on the microbial community structure in rock samples from Higashi-Aogashima Knoll Caldera hydrothermal field. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Gonoi, Y., Ito, J., Arai, S., Torimoto, J., Sanematsu, K., Oshika, J., Yonezu, K., Imai, A. and Nozaki, T.: Coexistence of geothermal and magmatic-hydrothermal systems at epithermal gold-silver deposits in the Iriki and Hoshino areas, Kyushu District. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Mimura, K., Kaneko, J., Nozaki, T., Kasaya, T., Sugimoto, Y., Genda, T. and Nakamura, T.: Deep-learning based exploration of seafloor hydrothermal activities at Higashi-Aogashima Knoll Caldera. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Mindaleva, D., Nozaki, T., Mimura, K., Yano, M., Ohta, J., Iijima, K., Yasukawa, K., Nakamura, K. and Kato, Y.: Miocene impact events: Age estimation using the Re-Os isotope for pelagic clay in the Minamitorishima EEZ. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Ishida, K., Ishida, M., Torimoto, J., Chang, Q., Takaya, Y., Ishibashi, J.-i., Kato, Y., Gonoi, Y. and Nozaki, T.: Mineralogical and lead isotopic study on the Higashi-Aogashima Knoll Caldera hydrothermal site. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Okada, S., Torimoto, J., Kuribayashi, T., Nagase, T., Owada, A., Ishibashi, J.-i., Makabe, A., Takaya, Y. and Nozaki, T.: Gold precipitation mechanism via nano-colloidal grain at the Higashi-Aogashima Knoll Cardella hydrothermal field. 日本地球惑星科学連合2025年大会 (幕張,2025年5月).
Nozaki, T.: Future directions for economic geology research. 日本地球惑星科学連合2025年大会 (幕張,2025年5月). ☆招待講演☆