研究業績

2026年

学術論文

• "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
• "Pacific abyssal sedimentary sinks of seawater K and Mg 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
• "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

国内学会（招待講演，基調講演）

• "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
• "南鳥島レアアース泥の化学層序：多元素データ解析による新たな層序学的アプローチ"
  安川和孝、田中えりか、中村謙太郎、加藤泰浩
  日本堆積学会2026年高知大会 (2026).

  Invited

国際学会

• "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).

2025年

学術論文

• "エアリフトポンプを用いた南鳥島海域レアアース泥・マンガン団塊のハイブリッド揚鉱"
  清水賀之・杉原正俊・髙谷雄太郎・藤永公一郎・中村謙太郎・加藤泰浩
  Journal of MMIJ 141, 132-142 (2025).

  • DOI: 10.2473/journalofmmij.MMIJ-2025-027
• "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
• "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
• "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
• "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
• "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
• "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 (2025).

  • DOI: 10.1016/j.gexplo.2025.107887
• "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
• "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
• "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
• "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
• "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

2024年

学術論文

• "Re-Os dating of the Makimine and Shimokawa VMS deposits for new age constraints on ridge subduction beneath Japanese Islands"
  Nozaki, T., Takaya, Y., Nakayama, K. and Kato, Y.
  Scientific Reports 14, 30094 (2024).

  • DOI: 10.1038/s41598-024-80799-z
• "Long-term variations of factors controlling REE-rich mud formation based on ocean-sediment Nd mass balance modeling"
  Matsunami, R., Yasukawa, K., Nakamura, K. and Kato, Y.
  Ore Geology Reviews 175, 106338 (2024).

  • DOI: 10.1016/j.oregeorev.2024.106338
• "Multi-elemental statistical features of early Paleogene sediments from the mid-latitude eastern Indian Ocean"
  Kuwahara, Y., Yasukawa, K., Tanaka, E., Nakamura, K., Ikehara, M and Kato, Y.
  Paleoceanography and Paleoclimatology 39, e2023PA004829 (2024).

  • DOI: 10.1029/2023PA004829
• "Multivariate statistical “unmixing” of Indian and Pacific Ocean sediment provenance"
  Dunlea, A. G., Yasukawa, K., Tanaka, E. and Hendy, I. L.
  Limnology and Oceanography: Methods 22, 823-839 (2024).

  • DOI: 10.1002/lom3.10645
• "Formation of hydrothermal ferromanganese oxides in the Daini-Nishi-Yamato Seamount, Sea of Japan: Do they really contain critical-metal particles?"
  Azami, K., Doshita, T., Koyama, K., Machida, S., Nakamura, K., Kato, Y. and Uchida, E.
  Ore Geology Reviews 172, 106202 (2024).

  • DOI: 10.1016/j.oregeorev.2024.106202
• "Air-Lift Pumping System for Hybrid Mining of Rare-Earth Elements-Rich Mud and Polymetallic Nodules around Minamitorishima Island"
  Shimizu, Y., Sugihara, M., Fujinaga, K., Nakamura, K. and Kato, Y.
  Journal of Marine Science and Engineering 12, 1470 (2024).

  • DOI: 10.3390/jmse12091470
• "Petrography and stratigraphic Os isotopic ages of ferromanganese nodules from the Northwest Pacific east of Minamitorishima Island"
  Nozaki, T., Goto, K. T., Takaya, Y., Shimada, K., Owada, A., Shimoda, G., Kimura, J-I., Chang, Q., Onoue, T, Machida, S., Ishii, T., Shimizu, K., Hirano, N., Mimura, K., Yano, M., Ohta, J. and Kato, Y.
  Journal of Asian Earth Sciences: X 11, 100176 (2024).

  • DOI: 10.1016/j.jaesx.2024.100176
• "Apparent diachroneity of calcareous nannofossil datums during the early Eocene in the high-latitude South Pacific Ocean"
  Niederbockstruck, B., Jones, H. L., Yasukawa, K., Raffi, I., Tanaka, E., Westerhold, T., Ikehara, M. and Röhl, U.
  Paleoceanography and Paleoclimatology 39, e2023PA004801 (2024).

  • DOI: 10.1029/2023PA004801
• "New Pb isotopic data from Japanese hydrothermal deposits for tracing heavy metal sources"
  Ishida, M., Fujinaga, K., Tanimizu, M., Ishikawa, T., Nagaishi, K. and Kato, Y.
  Geochemistry 84, 126045 (2024).

  • DOI: 10.1016/j.chemer.2023.126045
• "Mineralogical and geochemical facets of the massive deposition of stibnite-metastibnite at a seafloor hydrothermal field (Wakamiko Crater, Kagoshima Bay, Ryukyu Volcanic Arc)"
  Dekov, V., Furuma, Y., Guéguen, B., Klose, L., Yasukawa, K., Morita, M., Asael, D., Yamanaka, T., Bindi, L., Koschinsky, A., Pracejus, B. and Kato, Y.
  American Mineralogist 109, 1819-1833 (2024).

  • DOI: 10.2138/am-2023-9096
• "Contribution of carbonatite and recycled oceanic crust to petit-spot lavas on the western Pacific Plate"
  Mikuni, K., Hirano, N., Machida, S., Sumino, H., Akizawa, N., Tamura, A., Morishita, T. and Kato, Y.
  Solid Earth 15, 167–196 (2024).

  • DOI: 10.5194/se-15-167-2024
• "Applicability of Object Detection to Microfossil Research: Implications From Deep Learning Models to Detect Microfossil Fish Teeth and Denticles Using YOLO-v7"
  Mimura, K., Nakamura, K., Yasukawa, K., Sibert, E. C., Ohta, J., Kitazawa, T. and Kato, Y.
  Earth and Space Science 11, 1, e2023EA003122 (2024).

  • DOI: 10.1029/2023EA003122

  Cover Story
• "Geochemical insights into secular changes in the depositional environment of ferromanganese nodules in the western North Pacific"
  Nakamura, K., Horinouchi, K., Shimomura, R., Machida, S., Yasukawa, K., Fujinaga, K., Nozaki, T. and Kato, Y.
  Deep Sea Research Part I: Oceanographic Research Papers 203, 104227 (2024).

  • DOI: 10.1016/j.dsr.2023.104227
• "The Conrad Rise Revisited: Eocene to Miocene Volcanism and Its Implications for Magma Sources and Tectonic Development"
  Sato, H., Machida, S., Meyzen, C. M., Ishizuka, O., Senda, R., Bizimis, M., Ashida, K., Mikuni, K. Sato, T., Fujii, M., Nogi, Y. and Kato, Y.
  JGR Solid Earth 129, e2023JB027380 (2024).

  • DOI: 10.1029/2023JB027380

国際学会

• "REE-rich mud: A promising seafloor mineral resource as a key for sustainable future"
  Kato, Y.
  MIRU Rare earth Symposium in Tokyo with 2024 REIA Annual Conference ＆ JOGMEC (Tokyo, Japan) (2024).

  Keynote

2023年

学術論文

• "X-ray computed tomography of deep-sea clay as tools to detect rare earth elements and yttrium enrichment"
  Usui, Y., Yasukawa, K., Iijima, K., Machiyama, H., Ichiyama, Y, Tanaka, E. and Fujinaga, K.
  Island Arc 32, e12503 (2023).

  • DOI: 10.1111/iar.12503
• "Rhenium-osmium isotope evidence for the onset of volcanism in the central Panthalassa Ocean during the Norian "chaotic carbon episode""
  Sato, H., Nozaki, T., Onoue, T., Ishikawa, A., Soda, K., Yasukawa, K., Kimura, J.-I., Chang, Q., Kato, Y. and Rigo, M.
  Global and Planetary Change 229, 104239 (2023).

  • DOI: 10.1016/j.gloplacha.2023.104239
• "The Age and Origin of the Ruwai Polymetallic Skarn Deposit, Indonesia: Evidence of Cretaceous Mineralization in the Central Borneo Metallogenic Belt"
  Dana, C.D.P., Agangi, A., Idrus, A., Chelle-Michou, C., Lai, C.-K., Ishida, M., Guillong, M., González-Álvarez, I., Takahashi, R., Yano, M., Mimura, K., Ohta, J., Kato, Y., Simbolon, D.R. and Xia, X.-P.
  Economic Geology 118, 1341-1370 (2023).

  • DOI: 10.5382/econgeo.5009
• "Formation of hydrothermal ferromanganese oxides from the Daigo-Kume Knoll in the middle Okinawa Trough, Japan"
  Azami, K., Koyama, K., Machida, S., Okino, K., Yasukawa, K., Kato, Y. and Uchida, E.
  Marine Geology 463, 107117 (2023).

  • DOI: 10.1016/j.margeo.2023.107117
• "A practical approach for discriminating tectonic settings of basaltic rocks using machine learning"
  Nakamura, K.
  Applied Computing and Geosciences 19, 100132 (2023).

  • DOI: 10.1016/j.acags.2023.100132
• "Ba stable isotope excursions induced by multiple hyperthermal events: A potential new index for transient global warming"
  Miyazaki, T., Yasukawa, K., Tanaka, E., Vaglarov, B.S. and Yoshida, K.
  Geochemical Journal 57, e1-e8 (2023).

  • DOI: 10.2343/geochemj.GJ23011
• "Geochemistry of Neogene Nansatsu volcanic rocks in South Kyushu, Japan"
  Ishida, M., Murakami, S., Machida, S., Fujinaga, K., Yasukawa, K., Ishikawa, T., Nagaishi, K., Tajiri, R., Nakamura, K. and Kato, Y.
  International Geology Review 66, 1453-1463 (2023).

  • DOI: 10.1080/00206814.2023.2242905
• "High-Dimensional Chemostratigraphy of Pelagic Clay in the Western North Pacific Ocean Revealed via an Unsupervised Clustering Approach"
  Yasukawa, K., Tanaka, E., Miyazaki, T., Vaglarov, B.S., Chang, Q., Nakamura, K., Ohta, J., Fujinaga, K., Iwamori, H. and Kato, Y.
  Paleoceanography and Paleoclimatology 38, e2023PA004644 (2023).

  • DOI: 10.1029/2023PA004644
• "An intraoceanic juvenile arc of shoshonite and adakitic andesite in the Nemuro Belt, the Lesser Kuril Arc, across the K/Pg boundary"
  Yutani, T., Hirano, N., Tanaka, H., Sumino, H., Machida, S., Sekimoto, S., Yoneda, S. and Kato, Y.
  Cretaceous Research 147, 105510 (2023).

  • DOI: 10.1016/j.cretres.2023.105510
• "Mn‑carbonate deposition in a seafloor hydrothermal system (CLAM field, Iheya Ridge, Okinawa Trough): Insights from mineralogy, geochemistry and isotope studies"
  Dekov, V.M., Yasuda, K., Kamenov, G., Yasukawa, K., Guéguen, B., Kano, A., Yoshimura, T., Yamanaka, T., Bindi, L., Okumura, T., Asael, D., Araoka, D. and Kato, Y.
  Marine Geology 460, 107055 (2023).

  • DOI: 10.1016/j.margeo.2023.107055
• "Hydrothermal ferromanganese oxides around a petit-spot volcano on old and cold oceanic crust"
  Azami, K., Machida, S., Hirano, N., Nakamura, K., Yasukawa, K., Kogiso, T., Nakanishi, M. and Kato, Y.
  Communications Earth & Environment 4, 191 (2023).

  • DOI: 10.1038/s43247-023-00832-3
• "X-ray computed tomography analysis of ferromanganese nodule nuclei from the western North Pacific Ocean: Insights into their origins"
  Terauchi, D., Shimomura, R., Machida, S., Yasukawa, K., Nakamura, K. and Kato, Y.
  Minerals 13, 710 (2023).

  • DOI: 10.3390/min13060710

  Feature Paper & Cover Story
• "Datasets for training and validating a deep learning-based system to detect microfossil fish teeth from slide images"
  Mimura, K. and Nakamura, K.
  Data in Brief 47, 108940 (2023).

  • DOI: 10.1016/j.dib.2023.108940
• "Rare-earth elements in deep-sea sediments in the South Pacific Gyre: Source materials and resource potentials"
  Tanaka, E., Mimura, K., Nakamura, K., Ohta, J., Yasukawa, K. and Kato, Y.
  Geochemistry, Geophysics, Geosystems 24, e2022GC010681 (2023).

  • DOI: 10.1029/2022GC010681
• "Automated Detection of Hydrothermal Emission Signatures From Multibeam Echo Sounder Images Using Deep Learning"
  Mimura, K., Nakamura, K., Takao, K., Yasukawa, K. and Kato, Y.
  IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 16, 2703-2710 (2023).

  • DOI: 10.1109/JSTARS.2023.3247467
• "Marine osmium isotopic composition reconstructed from the early Permian umber deposit in the Japanese accretionary complex"
  Yano, M., Yasukawa, K., Nozaki, T., Fujinaga, K., Ohta, J., Nakamura, K. and Kato, Y.
  Journal of Asian Earth Sciences 241, 105480 (2023).

  • DOI: 10.1016/j.jseaes.2022.105480

国内学会（招待講演，基調講演）

• "深層学習を活用した海底鉱物資源研究の新展開：レアアース泥中のイクチオリス微化石の観察および海底熱水鉱床の物理探査を例に"
  見邨和英
  日本地質学会第130年学術大会 (京都) (2023).

  Invited

国際学会

• "Os isotopic composition of Early Cretaceous seawater reconstructed from umber deposit in the Japanese accretionary complex"
  Yano, M., Yasukawa, K., Fujinaga, K., Ohta, J., Kuwahara, Y., Nakayama, K., Nakamura, K. and Kato, Y.
  Goldschmidt (Lyon, France, Hybrid) (2023).
• "Importance of trans-crustal geological processes in understanding the genesis of giant epithermal gold deposits: The case of Hishikari deposit, Japan"
  Ishida, M., Nakamura, K., Iwamori, H., Hosono, T. and Kato, Y.
  European Geoscience Union General Assembly (Vienna, Austria) (2023).
• "Study on the mineralization age of the Akenobe Sn-Cu-W polymetallic deposit in southwest Japan"
  Ogasawara, M., Ohta, J., Ishida, M., Nakamura, K., Yasukawa, K. and Kato, Y.
  EGU General Assembly 2023 (Online) (2023).

2022年

学術論文

• "Rock and sediment dataset of petit-spots in the northwestern Pacific"
  Akizawa, N., Hirano, N., Machida, S., Ishikawa, A., Niwa, Y., Shimoda, G., Yasukawa, K., Matsuzaki, K. M., Tamura, C. and Kaneko, J.
  Data in Brief 45, 108764 (2022).

  • DOI: 10.1016/j.dib.2022.108764
• "Essential processes involving REE-enrichment in biogenic apatite in deep-sea sediment decoded via multivariate statistical analyses"
  Yasukawa, K., Ohta, J., Hamada, M., Chang, Q., Nakamura, H., Ashida, K., Takaya, Y., Nakamura, K., Iwamori, H. and Kato, Y.
  Chemical Geology 614, 121184 (2022).

  • DOI: 10.1016/j.chemgeo.2022.121184
• "Automated detection of microfossil fish teeth from slide images using combined deep learning models"
  Mimura, K., Minabe, S., Nakamura, K., Yasukawa, K., Ohta, J. and Kato, Y.
  Applied Computing and Geosciences 16, 100092 (2022).

  • DOI: 10.1016/j.acags.2022.100092
• "Geochemistry of ferromanganese nodules in the soil of Okinawa Island, Japan: Paleoclimatic implications and discrimination scheme of the nodule origins"
  Azami, K., Yasukawa, K. and Kato, Y.
  Journal of Asian Earth Sciences: X 8, 100127 (2022).

  • DOI: 10.1016/j.jaesx.2022.100127
• "千葉工業大学次世代海洋資源研究センター所有の表面電離型質量分析を用いた遺跡出土歯エナメル質のSr同位体比分析"
  金井拓人、矢野萌生、町田嗣樹、田中えりか、植月学
  帝京大学文化財研究所研究報告 第21集, 71-79 (2022).
• "Lithological structure of western Pacific lithosphere reconstructed from mantle xenoliths in a petit-spot volcano"
  Mikuni, K., Hirano, N., Akizawa, N., Yamamoto, J., Machida, S., Tamura, A., Hagiwara, Y. and Morishita, T.
  Progress in Earth and Planetary Science 9, 62 (2022).

  • DOI: 10.1186/s40645-022-00518-y
• "Zinc isotopic evidence for recycled carbonate in the deep mantle"
  Zhang, X. Y., Chen, L. H., Wang, X. J., Hanyu, T., Hofmann, A. W., Komiya, T., Nakamura, K., Kato, Y., Zeng, G., Gou, W. X. and Li, W. Q.
  Nature Communications 13, 6085 (2022).

  • DOI: 10.1038/s41467-022-33789-6
• "Unradiogenic lead isotopic signatures of the source mantle beneath the southernmost segment of the Central Indian Ridge"
  Sato, H., Machida, S., Ashida, K., Senda, R., Nakamura, K. and Yoneda, S.
  Lithos 424-425, 106774 (2022).

  • DOI: 10.1016/j.lithos.2022.106774
• "Iron deposition during recovery from Late Devonian oceanic anoxia: Implications of the geochemistry of the Kawame ferromanganese deposit, Nedamo Belt, Northeast Japan"
  Kuwahara, Y., Fujinaga, K., Nozaki, T., Ohta, J., Yano, M., Yasukawa, K., Nakamura, K. and Kato, Y.
  Global and Planetary Change 216, 103920 (2022).

  • DOI: 10.1016/j.gloplacha.2022.103920
• "Enhanced continental chemical weathering during the multiple early Eocene hyperthermals: New constraints from the southern Indian Ocean"
  Tanaka, E., Yasukawa, K., Ohta, J. and Kato, Y.
  Geochimica et Cosmochimica Acta 331, 192-211 (2022).

  • DOI: 10.1016/j.gca.2022.05.022
• "A precise and accurate analytical method for determination of osmium isotope ratios at the 1-15 pg level by using a MC-ICP-MS equipped with sparging introduction and high-sensitivity discrete dynode-type ion-counting detectors"
  Ohta, J., Nozaki, T., Sato, H., Ashida, K. and Kato, Y.
  Journal of Analytical Atomic Spectrometry 37, 1600-1610 (2022).

  • DOI: 10.1039/d2ja00089j
• "87Sr/86Sr Isotopic Ratio of Ferromanganese Crusts as a Record of Detrital Influx to the Western North Pacific Ocean"
  Azami, K., Hirano, N., Kimura, J.-I., Chang, Q., Sumino, H., Machida, S., Yasukawa, K. and Kato, Y.
  Minerals 12, 943 (2022).

  • DOI: 10.3390/min12080943

  Feature Paper
• "Effectiveness of neural kriging for three-dimensional modeling of sparse and strongly biased distribution of geologic data with an application to seafloor hydrothermal mineralization"
  Koike, K., Yono, O., de Sá, V. R., Tomita, S. A., Nozaki, T., Takaya, Y. and Komori, S.
  Mathematical Geosciences 54, 1183-1206 (2022).

  • DOI: 10.1007/s11004-022-10011-3
• "Depth Profiles of Re-Os Geochemistry in Drill Cores from Hole U1530A in Brothers Volcano Hydrothermal Field, Kermadec Arc: Mobilization and Extreme Enrichment of Os by Volcanic Gas"
  Nozaki, T., Ishida, M., Takaya, Y., Chang, Q., Kimura, J.-I. and Kato, Y.
  Economic Geology 118, 1681-1697 (2022).

  • DOI: 10.5382/econgeo.4960
• "Hydrothermal alteration within the Brothers submarine arc volcano, Kermadec arc, New Zealand"
  Martin, A. J., Jamieson, J. W., de Ronde, C. E. J., Humphris, S. E., Roberts, S., MacLeod, C. J., Cai, Y., Zhang, C., Schlicht, L. E. M. and Nozaki, T.
  Economic Geology 118, 1657-1679 (2022).

  • DOI: 10.5382/econgeo.4962
• "Tidally modulated temperature observed atop a drillsite at the Noho hydrothermal site, mid-Okinawa Trough"
  Kinoshita, M., Kitada, K. and Nozaki, T.
  Journal of Geophysical Research Solid Earth 127, e2021JB023923 (2022).

  • DOI: 10.1029/2021JB023923
• "徳島県高越および愛媛県伊予別子型鉱床のフェンジャイトK-Ar年代：Re-Osアイソクロン年代との比較"
  野崎達生, 佐藤佳子, 熊谷英憲, 島田和彦, 石橋純一郎, 加藤泰浩
  資源地質 72, 13-20 (2022).
• "北海道北部日高帯の泥質岩を母岩とする下川含銅硫化鉄鉱鉱床の成因"
  中山健・中村謙太郎・藤永公一郎・高谷雄太郎・原口悟・永石一弥・川合達也・石川剛志・加藤泰浩
  資源地質 72, 21-55 (2022).
• "Editorial for Special Issue “Deep-Sea Ferromanganese Nodules and Related Mineral Resources: Genesis, Exploration, and Mining”"
  Machida, S. and Nakamura, K.
  Minerals 12, 686 (2022).

  • DOI: 10.3390/min12060686
• "The mantle structure below petit-spot volcanoes"
  Hirano, N. and Machida, S.
  Communications Earth and Environment 3, 110 (2022).

  • DOI: 10.1038/s43247-022-00438-1
• "Umber as a lithified REY-rich mud in Japanese accretionary complexes and its implications for the osmium isotopic composition of Middle Cretaceous seawater"
  Fujinaga, K., Nakamura, K., Ohta, J., Yano, M., Kuwahara, Y., Yasukawa, K., Takaya, Y., Nakayama, K., Nozaki, T. and Kato, Y.*
  Ore Geology Reviews 142, 104683 (2022).

  • DOI: 10.1016/j.oregeorev.2021.104683
• "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"
  Ishida, M., Nozaki, T.*, Takaya, Y., Ohta, J., Chang, Q., Kimura, J.-I., Nakamura, K. and Kato, Y.
  Deep Sea Research Part I: Oceanographic Research Papers 180, 103687 (2022).

  • DOI: 10.1016/j.dsr.2021.103687
• "A direct evidence for disturbance of whole sediment layer in the subducting Pacific plate by petit-spot magma-water/sediment interaction"
  Akizawa, N.*, Hirano, N., Matsuzaki, K.M., Machida, S., Tamura, C., Kaneko, J., Iwano, H., Danhara, T. and Hirata, T.
  Marine Geology 444, 106712 (2022).

  • DOI: 10.1016/j.margeo.2021.106712
• "Near bottom MBES survey mounted on a HOV at 5500m depth"
  Kaneko, J., Machida, S., Hirano, N., Kasaya, T. and Kumagai, H.
  OCEANS, 2022, pp. 1-5 (2022).

  • DOI: 10.1109/OCEANSChennai45887.2022.9775366
• "Secular Variations in Provenance of Sedimentary Components in the Western North Pacific Ocean Constrained by Sr Isotopic Features of Deep-Sea Sediments"
  Tanaka, E., Yasukawa, K., Nakamura, K.*, Ohta, J., Miyazaki, T., Vaglarov, B.S., Machida, S., Fujinaga, K., Iwamori, H. and Kato, Y.*
  Geochemistry, Geophysics, Geosystems 23, e2021GC009729 (2022).

  • DOI: 10.1029/2021GC009729

国内学会（招待講演，基調講演）

• "海底熱水鉱床の初期生成プロセスにおける微生物活動の重要性～局所硫黄同位体分析の視点から～"
  野崎達生
  日本地球化学会第69回年会 (高知，ハイブリッド開催) (2022).

  Keynote
• "太平洋の遠洋性粘土に見られる地球化学的バリエーションとそのグローバル物質循環における重要性"
  見邨和英、中村謙太郎、安川和孝、町田嗣樹、大田隼一郎、藤永公一郎、加藤泰浩
  日本地球化学会第69回年会 (高知，ハイブリッド開催) (2022).

  Keynote
• "掘削航海により明らかになった海底熱水鉱床の最新成因モデルおよび初期形成過程"
  野崎達生
  日本地質学会第129年学術大会 (東京) (2022).

  Invited
• "インド洋の炭酸塩堆積物より復元した古第三紀の海水Os同位体比記録：始新世「超温暖化」イベントにおける化学風化フィードバックへの示唆"
  桑原佑典、安川和孝、大田隼一郎、矢野萌生、見邨和英、田中えりか、藤永公一郎、中村謙太郎、加藤泰浩
  JpGU Meeting 2022（千葉，ハイブリッド開催） (2022).

  Invited
• "海洋環境の保全及び海洋資源の持続可能な利用への貢献の在り方―南鳥島レアアース泥について―"
  加藤泰浩
  参議院 国際経済・外交に関する調査会（東京） (2022).

  Invited

国際学会

• "REY-rich mud: a key for sustainable development of our society"
  Nakamura, K. and Kato, Y.
  SHIFT 2022 - Spectral sHapIng For biomedical and energy applicaTions (Tenerife, Spain) (2022).

  Keynote
• "REE-rich mud: An innovative seafloor resource for Sustainable Development Goals"
  Kato, Y.
  Innovation for Cool Earth Forum (ICEF) 9th Annual Meeting (Tokyo, Japan) (2022).

  Invited
• "Geochemistry and morphology of Fe-Mn micro nodules in REY-rich mud: Implications for the formation process of highly promising deep-sea REY resource"
  Yasukawa, K., Kino, S., Ohta, J., Azami, K., Tanaka, E., Mimura, K., Fujinaga, K., Nakamura, K. and Kato, Y.
  3rd Edition of World Congress on Geology & Earth Science (Barcelona, Spain) (2022).

  Invited
• "The Paleogene Seawater Os Isotope Record of the Indian Ocean: Implications for the chemical weathering feedback against Eocene Hyperthermal Events"
  Kuwahara, Y., Yasukawa, K., Ohta, J., Yano, M., Mimura K., Tanaka E., Fujinaga, K., Nakamura, K. and Kato, Y.
  12th In­ter­na­tional Con­fer­ence on Cli­matic and Bi­otic Events of the Pa­leo­gene (CBEP12) (Bremen, Germany. Poster) (2022).
• "Tidally modulated temperature observed atop a drillsite at the Noho hydrothermal site, mid-Okinawa Trough"
  Kinoshita, M., Kitada, K. and Nozaki, T.
  AOGS 2022 19th Annual Meeting (Virtual) (2022).
• "Re-Os geochemistry of altered dacitic rock at Site U1527, IODP Expedition 376: Implications for the Re cycle in intraoceanic arcs"
  Ishida, M., Nozaki, T., Takaya, Y., Ohta, J., Chang, Q., Kimura, J.-I., Nakamura, K. and Kato, Y.
  EGU General Assembly 2022（Vienna, Austria） (2022).
• "Re–Os geochemistry of hydrothermally altered dacitic rock at Site U1527, IODP Expedition 376: Implications for the Re cycle in intraoceanic arcs"
  Ishida, M., Nozaki, T., Takaya, Y., Ohta, J., Chang, Q., Kimura, J.-I., Nakamura, K. and Kato, Y.
  Geochemistry of Mineral Deposits, Gordon Research Conference 2022 (Castelldefels, Spain) (2022).
• "REY-rich mud: A promising seafloor mineral resource as a key for sustainable future"
  Kato, Y.
  East Asian Maritime Cooperation: Technology, Sustainability, and UNCLOS (Tokyo, Japan. Hybrid) (2022).

  Keynote
• "Changing Southern Ocean Oxygenation at Intermediate Water Depths during the Transition Eocene-Oligocene Ice Sheet Development: Bulk Sediment Elemental data from IODP Site U1553, New Zealand"
  Chicoye, M., Hendy, I., Dunlea, A., Tanaka, E. and Yasukawa, K.
  PP22C-0851, AGU Fall Meeting 2022 (Chicago, USA. Poster) (2022).

2021年

学術論文

• "Stratigraphic Variations of Fe–Mn Micronodules and Implications for the Formation of Extremely REY-Rich Mud in the Western North Pacific Ocean"
  Yasukawa, K., Kino, S., Ohta, J., Azami, K., Tanaka, E., Mimura, K., Fujinaga, K., Nakamura, K. and Kato, Y.
  Minerals 11, 270 (2021).

  • DOI: 10.3390/min11030270
• "Geological features and resource potential of deep-sea mud highly enriched in rare-earth elements in the Central Pacific Basin and the Penrhyn Basin"
  Ohta, J., Yasukawa, K., Nakamura, K., Fujinaga, K., Iijima, K. and Kato, Y.*
  Ore Geology Reviews 129, 104440 (2021).

  • DOI: 10.1016/j.oregeorev.2021.104440
• "Geochemical characteristics of back-arc basin lower crust and upper mantle at final spreading stage of Shikoku Basin: an example of Mado Megamullion"
  Akizawa, N., Ohara, Y., Okino, K., Ishizuka, O., Yamashita, H., Machida, S., Alessio, S., Valentin, B., Snow, J., Atlanta, S., Hirauchi, K.-I., Michibayashi, K., Harigane, Y., Fujii, M., Asanuma, H. and Hirata, T.
  Progress in Earth and Planetary Science 8, 65 (2021).

  • DOI: 10.1186/s40645-021-00454-3
• "Intermittent Beginning to the Formation of Hydrogenous Ferromanganese Nodules in the Vast Field: Insights from Multi-Element Chemostratigraphy Using Microfocus X-ray Fluorescence"
  Machida, S.*, Shimomura, R., Nakamura, K., Kogiso, T. and Kato, Y.
  Minerals 11, 1246 (2021).

  • DOI: 10.3390/min11111246

  Feature Paper
• "One year in situ incubation of pyrite at the deep seafloor and its microbiological and biogeochemical characterizations"
  Mitsunobu, S., Ohashi, Y., Makita, H., Suzuki, Y., Nozaki, T., Ohigashi, T., Ina, T. and Takaki, Y.
  Applied and Environmental Microbiology 87, 23, e00977-21 (2021).

  • DOI: 10.1128/AEM.00977-21
• "Three-Dimensional Structural Analysis of Ferromanganese Nodules from the Western North Pacific Ocean Using X-ray Computed Tomography"
  Nakamura, K.*, Terauchi, D., Shimomura, R., Machida, S., Yasukawa, K., Fujinaga, K. and Kato, Y.
  Minerals 11, 1100 (2021).

  • DOI: 10.3390/min11101100

  Feature Paper
• "Field, textural, geochemical, and isotopic constraints on the origin and evolution of the magmatic microgranular enclaves from the Gharib Granitoid Complex, North Eastern Desert, Egypt"
  Eliwa, H. A.* Deevsalar, R., Mahdy, N. M., Kumar, S., El-Gameel, Kh., Zafar, T., Khalaf, I. M., Murata, M., Ozawa, H., Andresen, A., Chew, D., Fawzy, M. M., Afandy, A., Kato, Y. and Fujinaga, K.
  Precambrian Research 365, 106380 (2021).

  • DOI: 10.1016/j.precamres.2021.106380
• "Petrology, geochemistry, and geochronology of plutonic rocks from the present Southwest Indian Ridge: Implications for dropstone distribution in the Indian Ocean"
  Sato, H., Machida, S., Senda, R., Sato, K., Kumagai, H., Hyodo, H., Yoneda, S. and Kato, Y.
  Polar Science 29, 100725 (2021).

  • DOI: 10.1016/j.polar.2021.100725
• "A Combination of Geostatistical Methods and Principal Components Analysis for Detection of Mineralized Zones in Seafloor Hydrothermal Systems"
  de S?, V. R., Koike, K., Goto, T. N., Nozaki, T., Takaya, Y. and Yamasaki, T.
  Natural Resources Research 30, 2875-2887 (2021).

  • DOI: 10.1007/s11053-020-09705-4
• "Visualization method for the broad distribution of seafloor ferromanganese deposits"
  Machida, S., Sato, T., Yasukawa, K., Nakamura, K., Iijima, K., Nozaki, T. and Kato, Y.
  Marine Georesources and Geotechnology 39, 3, 267-279 (2021).

  • DOI: 10.1080/1064119X.2019.1696432
• "Auriferous pyrite formed by episodic fluid inputs in the Akeshi and Kasuga high-sulfidation deposits, Southern Kyushu, Japan"
  Ishida, M., Romero, R., Leisen, M., Yasukawa, K., Nakamura, K., Barra, F., Reich, M. and Kato, Y.
  Mineralium Deposita 57, 129-145 (2021).

  • DOI: 10.1007/s00126-021-01053-4
• "Rapid coupling between solid earth and ice volume during the Quaternary."
  Kuwahara, Y., Yasukawa, K., Fujinaga, K., Nozaki, T., Ohta, J., Sato, H., Kimura, J.-I., Nakamura, K., Yokoyama, Y. and Kato, Y.
  Scientific Reports 11, 5695 (2021).

  • DOI: 10.1038/s41598-021-84448-7
• "Study on the synthesis of hydroxyapatite under highly alkaline conditions"
  Udaeta, M.C., Kim, Y., Yasukawa, K., Kato, Y., Fujita, T. and Dodbiba, G.
  Industrial & Engineering Chemistry Research 60, 4385-4396 (2021).

  • DOI: 10.1021/acs.iecr.0c05969
• "Marine osmium isotope record during the Carnian “pluvial episode” (Late Triassic) in the pelagic Panthalassa Ocean"
  Tomimatsu, Y., Nozaki, T., Sato, H., Takaya, Y., Kimura, J.-I., Chang, Q., Naraoka, H., Rigo, M. and Onoue, T.
  Global and Planetary Change 197, 103387 (2021).

  • DOI: 10.1016/j.gloplacha.2020.103387
• "Fine-scale chemostratigraphy of cross-sectioned hydrogenous ferromanganese nodules from the western North Pacific"
  Machida, S., Nakamura, K., Kogiso, T., Shimomura, R., Horinouchi, K., Okino, K., and Kato, Y.
  Island Arc 30, e12395 (2021).

  • DOI: 10.1111/iar.12395
• "Microbial sulfate reduction plays an important role at the initialstage of subseafloor sulfide mineralization"
  Nozaki, T., Nagase, T., Ushikubo, T., Shimizu, K., Ishibashi, J. and the D/V Chikyu Expedition 909 Scientists
  Geology 49, 222-227 (2021).

  • DOI: 10.1130/G47943.1
• "A Paleogene magmatic overprint on Cretaceous seamounts of the western Pacific"
  Hirano, N., Sumino, H., Morishita, T., Machida, S., Kawano, T., Yasukawa, K., Hirata, T., Kato, Y. and Ishii, T.
  Island Arc 30, e12386 (2021).

  • DOI: 10.1111/iar.12386
• "Tokoro Belt (NE Hokkaido): an exhumed, Jurassic ? Early Cretaceous seamount in the Late Cretaceous accretionary prism of northern Japan"
  Sakai, S., Hirano, N., Dilek, Y., Machida, S., Yasukawa, K. and Kato, Y.
  Geological Magazine 158, 1, 72-83 (2021).

  • DOI: 10.1017/S0016756819000633

国際学会

• "Quantifying XRF Core Scanning Counts Within Different Sediment Matrices: Transitioning From a Nearshore to Farshore Environment at IODP Site U1553"
  Chicoye, M., Hendy, I., Dunlea, A., and IODP Expedition 378 Scientists (Tanaka, E.)
  AGU Fall Meeting 2021 (Chicago, USA. Poster) (2021).
• "Reis, A. J., Erhardt, A. M., Fichtner, V., Röhl, U., Thomas, D. J., Childress, L. and the IODP Expedition 378 Science Party (Tanaka, E.)"
  Insights into Sulfate Reduction and Carbonate Diagenesis on the Southern Campbell Plateau
  AGU Fall Meeting 2021 (Chicago, USA. Poster) (2021).
• "Multi-stage mineralization indicated by the Re-Os geochronology of low-level, highly radiogenic sulfides at the Kamioka Pb-Zn skarn deposit, central Japan"
  Ishida, M., Sakai, T., Ohta, J., Yano, M. and Kato, Y.
  SEG 100 Conference (Online) (2021).
• "Calcareous nannofossils at IODP Site U1553, a reference paleoceanographic record for the Paleogene"
  Raffi I., Persico D., Villa G. and IODP Expedition 378 Science Party (Tanaka, E.)
  90th Conference of the Italian Geological Society (Online) (2021).
• "The size trait toolbox: new perspectives on community structure response to climate change in calcifying marine phytoplankton"
  Sheward, R. M., Herrle, J. O. and IODP Expedition 378 Scientists (Tanaka, E.)
  2nd Crossing the Palaeontological-Ecological Gap (Berlin, Germany. Oral) (2021).
• "Fluctuation of marine osmium isotope ratio during the Quaternary climate cycles"
  Kuwahara, Y., Yasukawa, K., Fujinaga, K., Nozaki, T., Ohta, J., Sato, H., Kimura, J.-I., Nakamura, K., Yokoyama, Y. and Kato, Y.
  Goldschmidt Virtual 2021 (Online) (2021).
• "Depth profile of Re-Os concentrations and isotope ratios in the hydrothermally altered clay obtained from Brothers volcano hydrothermal field during the IODP Expedition 376"
  Nozaki, T., Ishida, M., Takaya, Y., Chang, Q., Kimura, J.-I. and Kato, Y.
  Goldschmidt Virtual 2021 (Online) (2021).
• "Stratigraphic variations in geochemistry and morphology of Fe–Mn micronodules: Implications for the formation process of extremely REY-rich mud in the western North Pacific Ocean"
  Yasukawa, K., Kino, S., Ohta, J., Azami, K., Tanaka, E., Mimura, K., Fujinaga, K., Nakamura, K. and Kato, Y.
  Goldschmidt Virtual 2021 (Online) (2021).
• "An improved analytical method for Re-Os isotope analysis and its application to GSJ geochemical reference materials, JCu-1 and JZn-1"
  Ogasawara, M., Ohta, J., Ishida, M., Yano, M., Yasukawa, K. and Kato, Y.
  EGU (European Geoscience Union) General Assembly 2021 (Online) (2021).

2020年

学術論文

• "Geochemical features of Fe-Mn micronodules in deep-sea sediments of the western North Pacific Ocean: Potential for co-product metal extraction from REY-rich mud"
  Yasukawa, K., Kino, S., Azami, T., Tanaka, E., Mimura, K., Ohta, J., Fujinaga, K., Nakamura, K. and Kato, Y.
  Ore Geology Reviews 127, 103805 (2020).

  • DOI: 10.1016/j.oregeorev.2020.103805
• "Geochemical features of redox-sensitive trace metals in sediments under oxygen-depleted marine environments"
  Yano, M., Yasukawa, K., Nakamura, K., Ikehara, M. and Kato, Y.
  Minerals 10, 1021 (2020).

  • DOI: 10.3390/min10111021
• "Biotic and environmental changes in the Panthalassa Ocean across the Norian (Late Triassic) impact event"
  Sato, H., Takaya, Y., Yasukawa, K., Fujinaga, K., Onoue, T. and Kato, Y.
  Progress in Earth and Planetary Science 7, 61 (2020).

  • DOI: 10.1186/s40645-020-00371-x
• "Formation of highly Zn-enriched sulfide scale at a deep-sea artificial hydrothermal vent, Iheya-North Knoll, Okinawa Trough"
  Nozaki, T., Nagase, T., Torimoto, J., Takaya, Y., Ishibashi, J., Shimada, K., Watanabe, M., Masaki, Y., Iijima, K., Kitada, K., Saitoh, M., Yokoyama, T., Akiyama, K., Sakurai, N., Saruhashi, T., Kyo, M., Kumagai, H. and Maeda, L.
  Mineralium Deposita 56, 975?990 (2020).

  • DOI: 10.1007/s00126-020-01022-3
• "U-Pb zircon geochronology and geochemical constraints on the Ediacaran continental arc and post-collision Granites of Wadi Hawashiya, North Eastern Desert, Egypt: Insights into the ~600 Ma crust-forming Event in the northernmost part of Arabian-Nubian Shield"
  El-Bialy, M.Z., Eliwa, H.A., Mahdy, N.M., Murata, M., El-Gameel, K.H., Sehsah, H., Omara, M., Kato, Y., Fujinaga, K., Andresen, A. and Thomsen, T.B.
  Precambrian Research 345, 105777 (2020).

  • DOI: 10.1016/j.precamres.2020.105777
• "U-Pb dating of granitic cobble (dropstone) recovered from inner slope of the Chile Trench (48°S): Constraint for its provenance"
  Orihashi, Y., Anma, R., Machida, S., Sasaki, M., Nakao, K., Takaku, Y. and Abe, N.
  Geochemical Journal 54, 195?201 (2020).

  • DOI: 10.2343/geochemj.2.0602
• "Chemostratigraphic Correlations of Deep-Sea Sediments in the Western North Pacific Ocean: A New Constraint on the Distribution of Mud Highly Enriched in Rare-Earth Elements"
  Tanaka, E., Nakamura, K., Yasukawa, K., Mimura, K., Fujinaga, K., Ohta, J., Iijima, K., Nozaki, T., Machida, S. and Kato, Y.
  Minerals 10, 575 (2020).

  • DOI: 10.3390/min10060575
• "Fish proliferation and rare-earth deposition by topographically induced upwelling at the late Eocene cooling event"
  Ohta, J., Yasukawa, K., Nozaki, T., Takaya, Y., Mimura, K., Fujinaga, K., Nakamura, K., Usui, Y., Kimura, J.-I., Chang, Q. and Kato, Y.
  Scientific Reports 10, 9896 (2020).

  • DOI: 10.1038/s41598-020-66835-8
• "Geochemistry, geochronology and petrogenesis of Maya Block granitoids and dikes from the Chicxulub impact crater, Gulf of M?xico: Implications for the assembly of Pangea"
  Zhao, J.*, Xiao, L., Gulick, S.P.S., Morgan, J.V., Kring, D., Fukugauchi, J.U., Schmieder, M., Graaff, S.J., Wittmann, A., Ross, C.H., Claeys, P., Pickersgill, A., Kaskes, P., Goderis, S., Rasmussen, C., Vajda, V., Ferri?re, L., Feignon, J.G., Chenot, E., Perez-Cruz, L., Sato, H. and Yamaguchi, K.
  Gondwana Research 82, 128-150 (2020).

  • DOI: 10.1016/j.gr.2019.12.003
• "Probing the hydrothermal system of the Chicxulub impact crater"
  Kring, D.A., Tikoo, S.M., Schmieder, M., Riller, U., Rebolledo-Vieyra, M., Simpson, S.L., Osinski, G.R., Gattacceca, J., Wittmann, A., Verhagen, C.M., Cockell, C.S., Coolen, M.J.L., Longstaffe, F.J., Gulick, S.P.S., Morgan, J.V., Bralower, T. J., Chenot, E., Christeson, G.L., Claeys, P., Ferrie?re, L., Gebhardt, C., Goto, K., Green, S.L., Jones, H., Lofi, J., Lowery, C.M., Ocampo-Torres, R., Perez-Cruz, L., Pickersgill, A.E., Poelchau, M.H., Rae, Auriol, S.P., Rasmussen, C., Sato, H., Smit, J., Tomioka, N., Urrutia-Fucugauchi, J., Whalen, M.T., Xiao, L. and Yamaguchi, K.E.
  Science Advances 6, 22, eaaz3053 (2020).

  • DOI: 10.1126/sciadv.aaz3053
• "Chemostratigraphy of deep-sea sediments in the western North Pacific Ocean: Implications for genesis of mud highly enriched in rare-earth elements and yttrium"
  Tanaka, E., Nakamura, K., Yasukawa, K., Mimura, K., Fujinaga, K., Iijima, K., Nozaki, T. and Kato, Y.
  Ore Geology Reviews 119, 103392 (2020).

  • DOI: 10.1016/j.oregeorev.2020.103392
• "自然ガンマ線検層による海底熱水鉱床探査：掘削ビット通過検層方式の適用"
  北田数也・真田佳典・山田泰広・野崎達生・熊谷英憲・丸田将弘・佐藤寛
  物理探査 73, 33-41 (2020).

  • DOI: 10.3124/segj.73.33
• "Melting of recycled ancient crust responsible for the Gutenberg discontinuity"
  Liu, J., Hirano, N., Machida, S., Xia, Q., Tao, C., Liao, S., Liang, J., Li, W., Yang, W., Zhang, G. and Ding, T.
  Nature Communications 11, 172 (2020).

  • DOI: 10.1038/s41467-019-13958-w

2019年

学術論文

• "Petit-spot volcanoes on the oldest portion of the Pacific plate"
  Hirano, N., Machida, S., Sumino, H., Shimizu, K., Tamura, A., Morishita, T., Iwano, H., Sakata, S., Ishii, T., Arai, S., Yoneda, S., Danhara, T. and Hirata, T.
  Deep-Sea Research Part I: Oceanographic Research Papers 154, 103142 (2019).

  • DOI: 10.1016/j.dsr.2019.103142
• "Significant impacts of pelagic clay on average chemical composition of subducting sediments: New insights from discovery of extremely rare-earth elements and yttrium-rich mud at Ocean Drilling Program Site 1149 in the western North Pacific Ocean"
  Mimura, K., Nakamura, K., Yasukawa, K., Machida, S., Ohta, J., Fujinaga, K. and Kato, Y.
  Journal of Asian Earth Sciences 186, 104059 (2019).

  • DOI: 10.1016/j.jseaes.2019.104059
• "A Miocene impact ejecta layer in the pelagic Pacific Ocean"
  Nozaki, T., Ohta, J., Noguchi, T., Sato, H., Ishikawa, A., Takaya, Y., Kimura, J.-I., Chang, Q., Shimada, K., Ishibashi, J., Yasukawa, K., Kimoto, K., Iijima, K. and Kato, Y.
  Scientific Reports 9, 16111 (2019).

  • DOI: 10.1038/s41598-019-52709-1
• "Precambrian basement, provenance implication, and tectonic evolution of the Gargan block of the Tuva-Mongolia Zone, Central Asian Orogenic Belt"
  Bold, U., Isozaki, Y., Aoki, S., Sakata, S., Ishikawa, A., Sawaki, Y. and Sawada, H.
  Gondwana Research 75, 172-183 (2019).

  • DOI: 10.1016/j.gr.2019.05.003
• "Hitachiite, Pb5Bi2Te2S6, a new mineral from the Hitachi mine, Ibaraki Prefecture, Japan"
  Kuribayashi, T., Nagase, T., Nozaki, T., Ishibashi, J., Shimada, K., Shimizu, M. and Momma, K.
  Mineralogical Magazine 83, 5, 733-739 (2019).

  • DOI: 10.1180/mgm.2019.45
• "Characterization of Crustal and Uppermost‐Mantle Seismic Discontinuities in the Ontong Java Plateau"
  Tonegawa, T., Miura, S., Ishikawa, A., Sano, T., Suetsugu, D., Isse, T., Shiobara, H., Sugioka, H., Ito, A., Ishihara, Y., Tanaka, S., Obayashi, M., Yoshimitsu, J. and Kobayashi, T.
  Journal of Geophysical Research: Solid Earth 124, 7, 7155-7170 (2019).

  • DOI: 10.1029/2018JB016970
• "Statistic and Isotopic Characterization of Deep-Sea Sediments in the Western North Pacific Ocean: Implications for Genesis of the Sediment Extremely Enriched in Rare Earth Elements"
  Yasukawa, K., Ohta, J., Miyazaki, T., Vaglarov, B.S., Chang, Q., Ueki, K., Toyama, C., Kimura, J-I., Tanaka, E., Nakamura, K., Fujinaga, K., Iijima, K., Iwamori, H. and Kato, Y.
  Geochemistry Geophysics Geosystems 20, 7, 3402-3430 (2019).

  • DOI: 10.1029/2019GC008214
• "Triassic marine Os isotope record from a pelagic chert succession, Sakahogi section, Mino Belt, southwest Japan"
  Nozaki, T., Nikaido, T., Onoue, T., Takaya, Y., Sato, K., Kimura, J.-I., Chang, Q., Yamashita, D., Sato, H., Suzuki, K., Kato, Y. and Matsuoka, A.
  Journal of Asian Earth Science: X 1, 100004 (2019).

  • DOI: https://doi.org/10.1016/j.jaesx.2018.100004
• "Pb isotope compositions of galena in hydrothermal deposits obtained by drillings from active hydrothermal fields in the middle Okinawa Trough determined by LA-MC-ICP-MS"
  Totsuka, S., Shimada, K., Nozaki, T., Kimura, J.-I., Chang, Q. and Ishibashi, J.-I.
  Chemical Geology 514, 90-104 (2019).

  • DOI: 10.1016/j.chemgeo.2019.03.024
• "Refinement of the micro-distillation technique for isotopic analysis of geological samples with pg-level osmium contents"
  Nakanishi, N., Yokoyama, T. and Ishikawa, A.
  Geostandards and Geoanalytical Research 43, 2, 231-243 (2019).

  • DOI: 10.1111/ggr.12262
• "Metal mobility of hydrothermal polymetallic sulfides in seawater during deep seafloor mining operations"
  Fuchida, S., Ishibashi, J.-I., Nozaki, T., Matsushita, Y., Kawachi, M. and Koshikawa, H.
  In: Sharma, R. (Ed) Environmental Issues of Deep-Sea Mining Impacts, Consequences and Policy Perspectives, Springer, Cham, 213-229 (2019).

  • DOI: 10.1007/978-3-030-12696-4_8
• "Experiments on rare earth element extractions from umber ores for optimizing the grinding process"
  Takaya, Y., Wang, M., Fujinaga, K., Uchida, E., Nozaki, T. and Kato, Y.
  Minerals 9, 4, 239 (2019).

  • DOI: 10.3390/min9040239
• "K-rich hydrous mantle lithosphere beneath the Ontong Java Plateau: significance for the genesis of oceanic basalts and Archean continents"
  Smart, K. A., Tappe, S., Ishikawa, A., Pfänder, J. A. and Stracke, A.
  Geochimica et Cosmochimica Acta 248, 311-342 (2019).

  • DOI: 10.1016/j.gca.2019.01.013
• "Trace-element characteristics of east-west mantle geochemical hemispheres"
  Iwamori, H., Nakamura, H., Yoshida, M., Nakagawa, T., Ueki, K., Nakao, A., Nishizawa, T. and Haraguchi, S.
  Comptes Rendus Geoscience 351, 2-3, 209-220 (2019).

  • DOI: 10.1016/j.crte.2018.09.007
• "Unique environmental conditions required for dawsonite formation: Implications from dawsonite synthesis experiments under alkaline condition"
  Takaya, T., Wu, M. and Kato, Y.
  ACS Earth and Space Chemistry 3, 2, 285-294 (2019).

  • DOI: 10.1021/acsearthspacechem.8b00121

2018年

学術論文

• "レアアース泥の起源：独立成分分析による数理統計的アプローチを中心に"
  安川和孝・中村謙太郎・藤永公一郎・岩森光・加藤泰浩
  地球化学 52, 4, 171-210 (2018).

  • DOI: 10.14934/chikyukagaku.52.171
• "日本列島付加体中に胚胎する古海洋底で生成した鉱床"
  野崎達生・藤永公一郎・加藤泰浩
  地質学雑誌 124, 12, 995-1020 (2018).

  • DOI: 10.5575/geosoc.2018.0052
• "層状チャートに記録された巨大隕石衝突の地球化学的特徴"
  佐藤峰南
  地質学雑誌 124, 12, 983-993 (2018).

  • DOI: 10.5575/geosoc.2018.0059
• "Onboard experiment investigating metal leaching of fresh hydrothermal sulfide cores into seawater"
  Fuchida, S., Ishibashi, J.-I., Shimada, K., Nozaki, T., Kumagai, H., Kawachi, M., Matsushita, Y. and Koshikawa, H.
  Geochemical Transactions 19, 1, 15 (2018).

  • DOI: 10.1186/s12932-018-0060-9
• "Evaluation of the toxicity of leaches from hydrothermal sulfide deposit by means of a delayed fluorescence-based bioassay with the marine cyanobacterium Cyanobium sp. NIES-981"
  Yamagishi, T.*, Fuchida, S., Katsumata, M., Horie, Y., Mori, F., Kitayama, A., Kawachi, M., Koshikawa, H., Nozaki, T., Kumagai, H., Ishibashi, J.-I. and Tatarazako, N.
  Ecotoxicology 27, 1303-1309 (2018).

  • DOI: 10.1007/s10646-018-1989-2
• "Subsurface deposition of Cu-rich massive sulphide underneath a Palaeoproterozoic seafloor hydrothermal system - The Red Bore prospect, Western Australia"
  Agangi, A., Reddy, S. M., Plavsa, D., Vieru, C., Selvaraja, V., LaFlamme, C., Jeon, H., Martin, L., Nozaki, T., Takaya, Y. and Suzuki, K.
  Mineralium Deposita 53, 1061?1078 (2018).

  • DOI: 10.1007/s00126-017-0790-0
• "A new and prospective resource for scandium: Evidence from the geochemistry of deep-sea sediment in the western North Pacific Ocean"
  Yasukawa, K., Ohta, J., Mimura, K., Tanaka, E., Takaya, Y., Usui, Y., Fujinaga, K., Machida, S., Nozaki, T., Iijima, K., Nakamura, K. and Kato, Y.
  Ore Geology Reviews 102, 260-267 (2018).

  • DOI: 10.1016/j.oregeorev.2018.09.001
• "Synchrotron X-ray spectroscopic perspective on the formation mechanism of REY-rich muds in the Pacific Ocean"
  Kashiwabara, T., Toda, R., Nakamura, K., Yasukawa, K., Fujinaga, K., Kubo, S., Nozaki, T., Takahashi, Y., Suzuki, K. and Kato, Y.
  Geochimica et Cosmochimica Acta 240, 274-292 (2018).

  • DOI: 10.1016/j.gca.2018.08.013
• "Rare earth elements and yttrium (REY) variability with water depth in hydrogenetic ferromanganese crusts"
  Azami, K., Hirano, N., Machida, S., Yasukawa, K. and Kato, Y.
  Chemical Geology 493, 224-233 (2018).

  • DOI: 10.1016/j.chemgeo.2018.05.045
• "Extraordinary rocks from the peak ring of the Chicxulub impact crater: P-wave velocity, density, and porosity measurements from IODP/ICDP Expedition 364"
  Christeson, G. L., Gulick, S. P. S., Morgan, J. V., Gebhardt, C., Kring, D. A., Le Ber, E., Lofi, J., Nixon, C., Poelchau, M., Rae, A. S. P., Rebolledo-Vieyra, M., Riller, U., Schmitt, D. R., Wittmann, A., Bralower, T. J., Chenot, E., Claeys, P., Cockell, C. S., Coolen, M. J. L., Ferri?re, L., Green S., Goto, K., Jones, H., Lowery, C. M., Mellett, C., Ocampo-Torres, R., Perez-Cruz, L., Pickersgill, A. E., Rasmussen, C., Sato, H., Smit, J., Tikoo, S. M., Tomioka, N., Urrutia-Fucugauchi, J., Whalen, M. T., Xiao, L. and Yamaguchi, K. E.
  Earth and Planetary Science Letters 495, 1-11 (2018).

  • DOI: 10.1016/j.epsl.2018.05.013
• "Direct ascent to the surface of asthenospheric magma in a region of convex lithospheric flexure"
  Sato, Y., Hirano, N., Machida, S., Yamamoto, J., Nakanishi, M., Ishii, T., Yasukawa, K. and Kato, Y.
  International Geology Review 60, 10, 1231?1243 (2018).

  • DOI: 10.1080/00206814.2017.1379912
• "Signal preprocessing of deep-sea laser-induced plasma spectra for identification of pelletized hydrothermal deposits using Artificial Neural Networks"
  Yoshino, S., Thornton, B., Takahashi, T., Takaya, Y. and Nozaki, T.
  Spectrochimica Acta Part B: Atomic Spectroscopy 145, 1-7 (2018).

  • DOI: 10.1016/j.sab.2018.03.015
• "Influence of contamination on banded iron formations in the Isua supracrustal belt, West Greenland: Reevaluation of the Eoarchean seawater compositions"
  Aoki, S., Kabashima, C., Kato, Y., Hirata, T. and Komiya, T.
  Geoscience Frontiers 9, 4, 1049-1072 (2018).

  • DOI: 10.1016/j.gsf.2016.11.016
• "Uptake of porewater phosphate by REY-rich mud in the western North Pacific Ocean"
  Ijiri, A., Okamura, K., Ohta, J., Nishio, Y., Hamada, Y., Iijima, K. and Inagaki, F.
  Geochemical Journal 52, 4, 373-378 (2018).

  • DOI: 10.2343/geochemj.2.0522
• "Rapid recovery of life at ground zero of the end-Cretaceous mass extinction"
  Lowery, C. M., Bralower, T. J., Owens, J. D., Rodr?guez-Tovar, F. J., Jones, H., Smit, J., Whalen, M. T., Claeys, P., Farley, K., Gulick, S. P. S., Morgan, J. V., Green, S., Chenot, E., Christeson, G. L., Cockell, C. S., Coolen, M. J. L., Ferri?re, L., Gebhardt, C., Goto, K., Kring, D. A., Lofi, J., Ocampo-Torres, R., Perez-Cruz, L., Pickersgill, A. E., Poelchau, M. H., Rae, A. S. P., Rasmussen, C., Rebolledo-Vieyra, M., Riller, U., Sato, H., Tikoo, S. M., Tomioka, N., Urrutia-Fucugauchi, J., Vellekoop, J., Wittmann, A., Xiao, L., Yamaguchi, K. E. and Zylberman, W.
  Nature 558, 288-291 (2018).

  • DOI: 10.1038/s41586-018-0163-6
• "Roles of hydrous lithospheric mantle in deep water transportation and subduction dynamics"
  Nakao, A., Iwamori, H., Nakakuki, T., Suzuki, Y.J. and Nakamura, H.
  Geophysical Research Letters 45, 11, 5336-5343 (2018).

  • DOI: 10.1029/2017GL076953
• "The tremendous potential of deep-sea mud as a source of rare-earth elements"
  Takaya, Y., Yasukawa, K., Kawasaki, T., Fujinaga, K., Ohta, J., Usui, Y., Nakamura, K., Kimura, J.-I., Chang, Q., Hamada, M., Dodbiba, G., Nozaki, T., Iijima, K., Morisawa, T., Kuwahara, T., Ishida, Y., Ichimura, T., Kitazume, M., Fujita, T. and Kato, Y.
  Scientific Reports 8, 5763 (2018).

  • DOI: 10.1038/s41598-018-23948-5
• "Long-term reaction characteristics of CO2-water-rock interaction: insight into the potential groundwater contamination risk from underground CO2 storage"
  Takaya, Y., Nakamura, K. and Kato, Y.
  Resource Geology 68, 1, 93-100 (2018).

  • DOI: 10.1111/rge.12147
• "Distribution of slab-derived fluids around the edge of the Philippine Sea Plate from Central to Northeast Japan"
  Nakamura, H., Iwamori, H., Ishizuka, O. and Nishizawa, T.
  Tectonophysics 723, 297-308 (2018).

  • DOI: 10.1016/j.tecto.2017.12.004

2017年

学術論文

• "Metasomatic PGE mobilization by carbonatitic melt in the mantle: Evidence from sub-μm-scale sulfide?carbonaceous glass inclusion in Tahitian harzburgite xenolith"
  Akizawa, N., Miyake, A., Ishikawa, A., Tamura, A., Terada, Y., Uesugi, K., Takeuchi, A., Arai S., Tanaka, C., Igami, Y., Suzuki, K. and Kogiso, T.
  Chemical Geology 475, 87-104 (2017).

  • DOI: 10.1016/j.chemgeo.2017.10.037
• "Paleoceanographic conditions on the S?o Paulo Ridge, SW Atlantic Ocean, for the past 30 million years inferred from Os and Pb isotopes of a hydrogenous ferromanganese crust"
  Goto, K. T., Nozaki, T., Toyofuku, T., Augustin, A. H., Shimoda, G., Chang, Q., Kimura, J.-I., Kameo, K., Kitazato, H. and Suzuki, K.
  Deep Sea Research Part II: Topical Studies in Oceanography 146, 82-92 (2017).

  • DOI: 10.1016/j.dsr2.2016.10.010
• "Collision-induced post-plateau volcanism: Evidence from a seamount on Ontong Java Plateau"
  Hanyu, T., Tejada, M.L.G., Shimizu, K., Ishizuka, O., Fujii, T., Kimura, J.-I., Chang, Q., Senda, R., Miyazaki, T., Hirahara, Y., Vagalov, B.S., Goto, K.T. and Ishikawa, A.
  Lithos 294-295, 87-96 (2017).

  • DOI: 10.1016/j.lithos.2017.09.029
• "Depth profiles of resistivity and spectral IP for active modern submarine hydrothermal deposits: a case study from the Iheya North Knoll and the Iheya Minor Ridge in Okinawa Trough, Japan"
  Komori, S., Masaki, Y., Tanikawa, W., Torimoto, J., Ohta, Y., Makio, M., Maeda, L., Ishibashi, J.-I., Nozaki, T., Tadai, O. and Kumagai, H.
  Earth, Planets and Space 69, 1, 114 (2017).

  • DOI: 10.1186/s40623-017-0691-6
• "Rhenium-osmium isotopes and highly siderophile elements in ultramafic rocks from the Eoarchean Saglek Block, northern Labrador, Canada: implications for Archean mantle evolution"
  Ishikawa, A., Suzuki, K., Collerson, K.D., Liu, J., Pearson, D.G. and Komiya, T.
  Geochimica et Cosmochimica Acta 216, 286-311 (2017).

  • DOI: 10.1016/j.gca.2017.07.023
• "Depositional age of a fossil whale bone from Sao Paulo Ridge, South Atlantic Ocean, based on Os isotope stratigraphy of a ferromanganese crust"
  Nozaki, T., Takaya, Y., Toyofuku, T., Tokumaru, A., Goto, K. T., Chang, Q., Kimura, J.-I., Kato, Y., Suzuki, K., Augustin, A. H. and Kitazato, H.
  Resource Geology 67, 4, 442-450 (2017).

  • DOI: 10.1111/rge.12138
• "Earth system feedback statistically extracted from the Indian Ocean deep-sea sediments recording Eocene hyperthermals"
  Yasukawa, K., Nakamura, K., Fujinaga, K., Ikehara, M. and Kato, Y.
  Scientific Reports 7, 11304 (2017).

  • DOI: 10.1038/s41598-017-11470-z
• "Genesis of ultra-high-Ni olivine in high-Mg andesite lava triggered by seamount subduction"
  Nishizawa, T., Nakamura, H., Churikova, T., Gordeychik, B., Ishizuka, O., Haraguchi, S., Miyazaki, T., Vaglarov, B.S., Chang, Q., Hamada, M., Kimura, J.-I., Ueki, K., Toyama, C., Nakao, A. and Iwamori, H.
  Scientific Reports 7, 11515 (2017).

  • DOI: 10.1038/s41598-017-10276-3
• "Origin of felsic volcanism in the Izu arc intra-arc rift"
  Haraguchi, S., Kimura, J.-I., Senda, R., Fujinaga, K., Nakamura, K., Takaya, Y. and Ishii, T.
  Contributions to Mineralogy and Petrology 172, 5, 25 (2017).

  • DOI: 10.1007/s00410-017-1345-1
• "A prolonged granitoid formation in Saglek Block, Labrador: Zonal growth and crustal reworking of continental crust in the Eoarchean"
  Komiya, T., Yamamoto, S., Aoki, S., Koshida, K., Shimojo, M., Sawaki, Y., Aoki, K., Sakata, S., Yokoyama, TD., Maki, K., Ishikawa, A., Hirata, T. and Collerson, K.D.
  Geoscience Frontiers 8, 2, 355-385 (2017).

  • DOI: 10.1016/j.gsf.2016.06.013
• "Classification of geochemical data based on multivariate statistical analyses: Complementary roles of cluster, principal component, and independent component analyses"
  Iwamori, H., Yoshida, K., Nakamura, H., Kuwatani, T., Hamada, M., Haraguchi, S. and Ueki, K.
  Geochemistry, Geophysics, Geosystems 18, 3, 994-1012 (2017).

  • DOI: 10.1002/2016GC006663
• "Petit-spot as definitive evidence for partial melting in the asthenosphere caused by CO2"
  Machida, S., Kogiso, T. and Hirano, N.
  Nature Communications 8, 14302 (2017).

  • DOI: 10.1038/ncomms14302

2016年

学術論文

• "Major and trace element compositions and resource potential of ferromanganese crust at Takuyo Daigo Seamount, northwestern Pacific Ocean"
  Nozaki, T., Tokumaru, A., Takaya, Y., Kato, Y., Suzuki, K. and Urabe, T.
  Geochemical Journal 50, 6, 527-537 (2016).

  • DOI: 10.2343/geochemj.2.0430
• "Geology and geochemistry of ferromanganese nodules in the Japanese Exclusive Economic Zone around Minamitorishima Island"
  Machida, S., Fujinaga, K., Ishii, T., Nakamura, K., Hirano, N. and Kato, Y.
  Geochemical Journal 50, 6, 539-555 (2016).

  • DOI: 10.2343/geochemj.2.0419
• "Discovery of extremely REY-rich mud in the western North Pacific Ocean"
  Iijima, K., Yasukawa, K., Fujinaga, K., Nakamura, K., Machida, S., Takaya, Y., Ohta, J., Haraguchi, S., Nishio, Y., Usui, Y., Nozaki, T., Yamazaki, T., Ichiyama, Y., Ijiri, A., Inagaki, F., Machiyama, H., Suzuki, K., Kato, Y. and KR13-02 Cruise Members
  Geochemical Journal 50, 6, 557-573 (2016).

  • DOI: 10.2343/geochemj.2.0431
• "Geochemistry of REY-rich mud in the Japanese Exclusive Economic Zone around Minamitorishima Island"
  Fujinaga, K., Yasukawa, K., Nakamura, K., Machida, S., Takaya, Y., Ohta, J., Araki, S., Liu, H., Usami, R., Maki, R., Haraguchi, S., Nishio, Y., Usui, Y., Nozaki, T., Yamazaki, T., Ichiyama, Y., Ijiri, A., Inagaki, F., Machiyama, H., Iijima, K., Suzuki, K., Kato, Y., KR13-02, MR13-E02 Leg 2 and KR14-02 Cruise Members
  Geochemical Journal 50, 6, 575-590 (2016).

  • DOI: 10.2343/geochemj.2.0432
• "Geological factors responsible for REY-rich mud in the western North Pacific Ocean: Implications from mineralogy and grain size distributions"
  Ohta, J., Yasukawa, K., Machida, S., Fujinaga, K., Nakamura, K., Takaya, Y., Iijima, K., Suzuki, K. and Kato, Y.
  Geochemical Journal 50, 6, 591-603 (2016).

  • DOI: 10.2343/geochemj.2.0435
• "Acoustic characterization of pelagic sediments using sub-bottm profiler data: Implications for the distribution of REY-rich mud in the Minamitorishima EEZ, western Pacific"
  Nakamura, K., Machida, S., Okino, K., Masaki, Y., Iijima, K., Suzuki, K. and Kato, Y.
  Geochemical Journal 50, 6, 605-619 (2016).

  • DOI: 10.2343/geochemj.2.0433
• "Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa"
  Onoue, T., Sato, H., Yamashita, D., Ikehara, M., Yasukawa, K., Fujinaga, K., Kato, Y. and Matsuoka, A.
  Scientific Reports 6, 29609 (2016).

  • DOI: 10.1038/srep29609
• "Tracking the spatiotemporal variations of statistically independent components involving enrichment of rare-earth elements in deep-sea sediments"
  Yasukawa, K., Nakamura, K., Fujinaga, K., Iwamori, H. and Kato, Y.
  Scientific Reports 6, 29603 (2016).

  • DOI: 10.1038/srep29603
• "Rapid growth of mineral deposits at artificial seafloor hydrothermal vents"
  Nozaki, T., Ishibashi, J. Shimada, K., Takaya, Y., Nagase, T., Kato, Y., Kawagucci, T., Watsuji, T., Shibuya, T., Yamada, R., Saruhashi, T., Kyo, M. and Takai, K.
  Scientific Reports 6, 22163 (2016).

  • DOI: 10.1038/srep22163