PUBLICATIONS

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.

Tanaka, E., Yasukawa, K., Ohta, J. and Kato, Y. Enhanced continental chemical weathering during the multiple early Eocene hyperthermals: New constraints from the southern Indian Ocean. Geochimica et Cosmochimica Acta, 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

Kuwahara, Y., Yasukawa, K., Fujinaga, K., Nozaki, T., Ohta, J., Sato, H., Kimura, J. -I., Nakamura, K., Yokoyama, Y. and Kato, Y. Rapid coupling between solid earth and ice volume during the Quaternary. Scientific Reports 11, 5695 (2021). https://doi.org/10.1038/s41598-021-84448-7

Yasukawa, K., Kino, S., Ohta, J., Azami, K., Tanaka, E., Mimura, K., Fujinaga, K., Nakamura, K. and Kato, Y. Stratigraphic Variations of Fe-Mn Micronodules and Implications for the Formation of Extremely REY-Rich Mud in the Western North Pacific Ocean. Minerals 11, 270 (2020) https://doi.org/10.3390/min11030270

Yasukawa, K., Kino, S., Azami, K., Tanaka, E., Mimura, K., Ohta, J., Fujinaga, K., Nakamura, K. and Kato, Y. 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. Ore Geology Reviews. 127, 103805 (2020). https://doi.org/10.1016/j.oregeorev.2020.103805

Ohta, J., Yasukawa, K., Nozaki, T., Takaya, Y., Mimura, K., Fujinaga, K., Nakamura, K., Usui, Y., Kimura, J. -I., Chang, Q. and Kato, Y. Fish proliferation and rare-earth deposition by topographically induced upwelling at the late Eocene cooling event. Scientific Reports 10, 9896 (2020). https://doi.org/10.1038/s41598-020-66835-8

Tanaka, T., Nakamura, K., Yasukawa, K., Mimura, K., Fujinaga, K., Ohta, J., Iijima, K., Nozaki, T., Machida, S. and Kato, Y. 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. Minerals 10, 575 (2020). https://doi.org/10.3390/min10060575

Mimura, K., Nakamura, K., Yasukawa, K., Machida, S., Ohta, J., Fujinaga, K. and Kato, Y. 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. Journal of Asian Earth Sciences 186, 104059 (2019). https://doi.org/10.1016/j.jseaes.2019.104059

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. A Miocene impact ejecta layer in the pelagic Pacific Ocean. Scientific Reports 9, 16111 (2019). https://doi.org/10.1038/s41598-019-52709-1

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. 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. Geochemistry, Geophysics, Geosystems 20, 3402–3430 (2019). https://doi.org/10.1029/2019GC008214

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. New and prospective resource for scandium: Evidence from the geochemistry of deep-sea sediment in the western North Pacific Ocean. Ore Geology Reviews 102, 260–267 (2018). https://doi.org/10.1016/j.oregeorev.2018.09.001

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. The tremendous potential of deep-sea mud as a source of rare-earth elements. Scientific Reports 8, 5763 (2018). https://doi.org/10.1038/s41598-018-23948-5

Ijiri, A., Okamura, K., Ohta, J., Nishio, Y., Hamada, Y., Iijima, K. and Inagaki, F. Uptake of porewater phosphate by REY-rich mud in the western North Pacific Ocean. Geochemical Journal 52, 373–378 (2018). https://doi.org/10.2343/geochemj.2.0522

Ohta, J., Yasukawa, K., Machida, S., Fujinaga, K., Nakamura, K., Takaya, Y., Iijima, K., Suzuki, K. and Kato, Y. Geological factors responsible for REY-rich mud in the western North Pacific Ocean: Implications from mineralogy and grain size distributions. Geochemical Journal 50, 591–603 (2016). https://doi.org/10.2343/geochemj.2.0435

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. Discovery of extremely REY-rich mud in the western North Pacific Ocean. Geochemical Journal 50, 557–573 (2016). https://doi.org/10.2343/geochemj.2.0431

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. and KR13-02, MR13-E02 Leg 2 and KR14-02 Cruise members. Geochemistry of REY-rich mud in the Japanese Exclusive Economic Zone around Minamitorishima Island. Geochemical Journal 50, 575–590 (2016). https://doi.org/10.2343/geochemj.2.0432

Yasukawa, K., Nakamura K., Fujinaga, K. Machida, S., Ohta, J., Takaya, Y. and Kato Y. Rare-earth, major, and trace element geochemistry of deep-sea sediments in the Indian Ocean: Implications for the potential distribution of REY-rich mud in the Indian Ocean. Geochemical Journal 49, 621–635 (2015). https://doi.org/10.2343/geochemj.2.0361

Kato, Y., Fujinaga, K., Nakamura, K., Takaya, Y., Kitamura, K., Ohta, J., Toda, R., Nakashima, T. and Iwamori, H. Deep-sea mud in the Pacific Ocean as a potential resource for rare-earth elements. Nature Geoscience 4, 535–539 (2011). https://doi.org/10.1038/ngeo1185

大田隼一郎, 藤永公一郎, 高谷雄太郎, 加藤泰浩. ハワイ南東方沖におけるレアアース泥の資源ポテンシャル評価. 資源地質 62, 197-209 (2012)．https://doi.org/10.11456/shigenchishitsu.62.197

野崎達生，飯島耕一，藤永公一郎，中村謙太郎，髙谷雄太郎，安川和孝，大田隼一郎，加藤泰浩．第4の海底鉱物資源『レアアース泥』．日本海水学会誌 70，90-96，2016．

石井輝秋，町田嗣樹，飯島耕一，山本浩文，野崎達生，金子純二，大田隼一郎，藤永公一郎，安川和孝，下村遼，高谷雄太郎，南澤智美，藤島恵介，黒崎智雄，梅原淑行．「よこすか」「しんかい6500」YK16-01研究航海の概要 : 南鳥島海域EEZ内マンガンノジュール広域調査の潜航研究速報．公益財団法人深田地質研究所年報 17，1-28，2016．

Nakamura, K., Fujinaga, K., Yasukawa, K., Takaya, Y., Ohta, J., Machida, S., Haraguchi, S. and Kato, Y. REY-Rich Mud: A Deep-Sea Mineral Resource for Rare Earths and Yttrium. Handbook on the Physics and Chemistry of Rare Earths, Elsevier, 46, 79–127 (2015). https://doi.org/10.1016/B978-0-444-63260-9.00268-6

大田隼一郎，町田嗣樹，藤永公一郎，中村謙太郎，髙谷雄太郎，安川和孝，飯島耕一，加藤泰浩．南鳥島レアアース泥の鉱物学的特徴と資源開発に向けた示唆．希土類 66，52-53，2015．

藤永公一郎，安川和孝，髙谷雄太郎，大田隼一郎，中村謙太郎，加藤泰浩．新たな深海底鉱物資源“レアアース泥”の探査と開発に向けた取り組み，Journal of MMIJ 131，648-655，2015．

安川和孝，中村謙太郎，藤永公一郎，町田嗣樹，大田隼一郎，髙谷雄太郎，飯島耕一，岩森光，加藤泰浩．独立成分分析による南鳥島レアアース泥の地球化学データ解析．希土類 66，52-53，2015．

藤永公一郎，中村謙太郎，町田嗣樹，高谷雄太郎，安川和孝，大田隼一郎，飯島耕一，鈴木勝彦，加藤泰浩．南鳥島EEZに分布する超高濃度レアアース泥の地球化学的特徴．希土類 66，46-47，2015．

藤永公一郎，安川和孝，髙谷雄太郎，大田隼一郎，中村謙太郎，加藤泰浩．新たな深海底鉱物資源”レアアース泥”の探査と開発に向けた取り組み．日本鑛業會誌 131，648-655，2015．

石井輝秋，川村喜一郎，小林励司，濱本栄起，山下浩之，安川和孝，大田隼一郎，名取孝人，吉田尊智，原口悟，中村謙太郎，仲の幸彦．学術研究船淡青丸KT-12-35研究航海の概要　―相模トラフ沿い沈み込み帯の構造と地震発生帯の関係の解明―．深田地質研究所年報 14，29-56，2013．

Ohta, J., Yasukawa, K., Nozaki, T., Takaya, Y., Mimura, K., Fujinaga, K., Nakamura, K., Usui, Y., Kimura, J. -I., Chang, Q. and Kato, Y. Fish debris and rare-earth deposition caused by topographically induced upwelling in the latest Eocene. JpGU-AGU Joint Meeting 2020, BCG06-02, 2020, invited.

Ohta, J., Yasukawa, K., Nozaki, T., Takaya, Y., Mimura, K., Fujinaga, K., Nakamura, K., Usui, Y., Kimura, J. -I., Chang, Q. and Kato, Y. Fish Debris and Rare-Earth Deposition Event in the Latest Eocene Revealed by Osmium Isotope Stratigraphy. Goldschmidt Abstracts, 2020. DOI: 10.46427/gold2020.1981

Ohta, J., Nozaki, T., Takaya, Y., Yasukawa, K., Fujinaga, K., Nakamura, K., Kimura, J, -I., Chang, Q. and Kato, Y. Fluctuation of Osmium Isotope Composition Recorded in Cenozoic Pelagic Brown Clay from the Western North Pacific Ocean. Goldschmidt Abstracts, 2500, 2019.

Ohta, J., Nozaki, T., Takaya, Y., Yasukawa, K., Fujinaga, K., Nakamura, K., Kimura, J. -I., Chang, Q. and Kato, Y. Improvement of chronology for Cenozoic pelagic brown clay by osmium isotope stratigraphy. STRATI 2019 Abstract book, 41, 2019.

Ohta, J., Nakamura, K., Yasukawa, K., Fujinaga, K., Iijima, K., Iwamori, H. and Kato, Y. A distribution of Cretaceous to Paleogene deep-water agglutinated foraminifers in the western North Pacific Ocean. Goldschmidt Conference Abstracts, 2355, 2016.

Ohta, J., Yasukawa, K., Machida, S., Fujinaga, K., Nakamura, K., Takaya, Y., Iijima, K. and Kato, Y. Grain size distributions of extremely REY-enriched pelagic sediments in the western North Pacific Ocean. Goldschmidt Abstracts, 2325, 2015.

Ohta, J., Tokunaga, T. Modeling fluid migration in deep crust with modeled permeability based on wettability and energy consideration. In Goldschmidt 2013 Conference Abstract, Mineralogical Magazine 77, 1884, 2013.

Ohta, J., Tokunaga, T. Modeling migrations of slab-derived fluid in deep crust based on the considerations of solid phase deformation and wettability of solid-liquid system. AGU Fall Meeting, T21C-2577, San Francisco, USA, December 2012.

Ohta, J., Tokunaga, T. Modeling permeability in the deep crust based on the solid-liquid dihedral angle and energy consideration. Joint Symposium of Misasa-2012 and Geofluid-2 “Dynamics and Evolution of the Earth’s Interior: special emphasis on the role of fluids, P20-04, Tottori, Japan, March 2012.

大田隼一郎，佐藤峰南，野崎達生，芦田果奈，加藤泰浩．気化法とCDDを用いた高確度・高精度・迅速オスミウム同位体比分析手法の開発，2019年度地球化学会年会，1P12，東京，2019年5月．

大田隼一郎，中村謙太郎，安川和孝，藤永公一郎，飯島耕一，加藤泰浩．北西太平洋の白亜紀最後期遠洋性粘土中におけるdeep-water agglutinated foraminiferaの産状．日本地質学会第125年学術大会，R23-O-8，北海道，2018年9月．

大田隼一郎，中村謙太郎，安川和孝，藤永公一郎，飯島耕一，岩森光，加藤泰浩．北西太平洋の遠洋性堆積物中の白亜紀／古第三紀境界層付近における deep-water agglutinated foraminifers．日本地球惑星科学連合2016年大会，BPT05-22，千葉，2016年5月．

大田隼一郎，町田嗣樹，藤永公一郎，中村謙太郎，安川和孝，高谷雄太郎，飯島耕一，鈴木勝彦，岩森光，加藤泰浩．南鳥島周辺の排他的経済水域内におけるレアアース泥の鉱物学的特徴および粒度分布．日本地質学会第122年学術大会，O24-0-8，長野，2015年9月．

大田隼一郎，町田嗣樹，藤永公一郎，中村謙太郎，高谷雄太郎，安川和孝，飯島耕一，加藤泰浩．南鳥島レアアース泥の鉱物学的特徴と資源開発に向けた示唆．第32回希土類討論会，1B-04，鹿児島，2015年5月．

大田隼一郎，町田嗣樹，藤永公一郎，中村謙太郎，安川和孝，高谷雄太郎，飯島耕一，鈴木勝彦，加藤泰浩．南鳥島周辺の排他的経済水域内におけるレアアース泥の粒度分布．日本地球惑星科学連合2015年大会，BPT23-24，千葉，2015年5月．

大田隼一郎，高谷雄太郎，藤永公一郎，中村謙太郎，安川和孝，町田嗣樹，飯島耕一，鈴木勝彦，岩森光，加藤泰浩．南鳥島EEZ内におけるレアアース泥の鉱物学的特徴．日本地質学会第 121 年学術大会，R25-O-6，鹿児島，2014年9月．

大田隼一郎，高谷雄太郎，藤永公一郎，安川和孝，中村謙太郎，町田嗣樹，原口悟，加藤泰浩．南鳥島EEZ内におけるレアアース泥の構成鉱物の特徴およびその成因への示唆．日本地球惑星科学連合2015年大会，SGC56-12，神奈川，2014年4月．

大田隼一郎，徳永朋祥．粒界界面エネルギーおよび濡れ性を考慮したスラブ起源流体流動モデリング．資源地質学会第 63 回年会学術講演会．P-30，東京，2013年6月．

大田隼一郎，徳永朋祥「固液2面角と海面エネルギーを考慮した深部地殻におけるスラブ起源流体の移動過程」『日本地下水学会2012年春季講演会』14，千葉，2012年5月．

大田隼一郎，藤永公一郎，高谷雄太郎，加藤泰浩．ハワイ南東方沖の深海底岩金属堆積物の地球化学的特徴．資源地質学会第60回年会学術講演会，P-29，東京，2010年6月．