Detection of the unknown ocean impact event using REY-rich deep-sea mud with low sedimentation rate

• Project/Area Number: 16K13895
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Geology
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: NOZAKI Tatsuo 国立研究開発法人海洋研究開発機構, 海底資源研究開発センター, グループリーダー代理 (10553068)
• Co-Investigator(Kenkyū-buntansha): 石川 晃 東京大学, 大学院総合文化研究科, 助教 (20524507) ; 佐藤 峰南 千葉工業大学, 次世代海洋資源研究センター, 上席研究員 (20773394)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: レニウム-オスミウム同位体 / 白金族元素組成 / レアアース泥 / 隕石衝突 / 北西太平洋 / 南鳥島 / 地球化学 / 全岩化学組成 / レニウム－オスミウム同位体 / オスミウム同位体 / 白金族元素層序

Outline of Final Research Achievements

We conducted the Re-Os isotope analysis by MC-ICP-MS, whole-rock major, trace and PGE analyses by ICP-QMS on piston core samples collected from the Minami-Torishima Island. Based on these geochemical data, an anomalous layer showing the negative Os-isotope excursion as well as enrichment in PGEs was found. Then, we conducted the petrographic observation using a stereoscopic microscope and SEM, leading the discovery of many spherule grains. These spherules include dendritic spinel grains by microscopic observation of the polished section under the reflected light. Although some parts of petrographical study by using an EPMA was not completed, a sedimentary age of this anomalous layer has the age that no large craters have been reported on land. Consequently, we successfully found the unknown ocean impact event from the Northwestern Pacific Ocean.

Research Products

• [Journal Article] Subsurface deposition of Cu-rich massive sulphide underneath a Palaeoproterozoic seafloor hydrothermal system?the Red Bore prospect, Western Australia (2018)
  • Author(s): Agangi Andrea、Reddy S. M.、Plavsa D.、Vieru C.、Selvaraja V.、LaFlamme C.、Jeon H.、Martin L.、Nozaki T.、Takaya Y.、Suzuki K.
  • Journal Title: Mineralium Deposita Volume: 53 Issue: 8 Pages: 1061-1078
  • DOI: 10.1007/s00126-017-0790-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The tremendous potential of deep-sea mud as a source of rare-earth elements (2018)
  • Author(s): 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.
  • Journal Title: Scientific Reports Volume: in press
  • Peer Reviewed / Open Access
• [Journal Article] Rapid recovery of life at ground zero of the end Cretaceous mass extinction (2018)
  • Author(s): Lowery, C. M. et al. (Sato, H.: 38人中30番目)
  • Journal Title: Nature Volume: in press
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Depth profiles of resistivity and spectral IP at active modern submarine hydrothermal deposits: A case study from the Iheya North Knoll and the Iheya Minor Ridge in Okinawa Trough, Japan (2017)
  • Author(s): Komori, S., Masaki, Y., Tanikawa, W., Torimoto, J., Ohta, Y., Makio, M., Maeda, L., Ishibashi, J.-I., Nozaki, T., Tadai, O. and Kumagai, H.
  • Journal Title: Earth, Planets and Space Volume: 69 Issue: 1 Pages: 114-114
  • DOI: 10.1186/s40623-017-0691-6
  • Peer Reviewed / Open Access
• [Journal Article] Depositional Age of a Fossil Whale Bone from S?o Paulo Ridge, South Atlantic Ocean, Based on Os Isotope Stratigraphy of a Ferromanganese Crust (2017)
  • Author(s): Nozaki Tatsuo、Takaya Yutaro、Toyofuku Takashi、Tokumaru Ayaka、Goto Kosuke T.、Chang Qing、Kimura Jun-ichi、Kato Yasuhiro、Suzuki Katsuhiko、Augustin Adolpho Herbert、Kitazato Hiroshi
  • Journal Title: Resource Geology Volume: 67 Issue: 4 Pages: 442-450
  • DOI: 10.1111/rge.12138
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Paleoceanographic conditions on the Sao Paulo Ridge, SW Atlantic Ocean, for the past 30 million years inferred from Os and Pb isotopes of a hydrogenous ferromanganese crust (2017)
  • Author(s): K.T. Goto, T. Nozaki, T. Toyofuku, A.H. Augustin, G. Shimoda, Q. Chang, J. Kimura, K. Kameo, H. Kitazato, and K. Suzuki
  • Journal Title: Deep Sea Research Part II: Topical Studies in Oceanography Volume: 印刷中 Pages: 82-92
  • DOI: 10.1016/j.dsr2.2016.10.010
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Rhenium-osmium isotopes and highly siderophile elements in ultramafic rocks from the Eoarchean Saglek Block, northern Labrador, Canada: implications for Archean mantle evolution (2017)
  • Author(s): Ishikawa Akira、Suzuki Katsuhiko、Collerson Kenneth D.、Liu Jingao、Pearson D. Graham、Komiya Tsuyoshi
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 216 Pages: 286-311
  • DOI: 10.1016/j.gca.2017.07.023
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A prolonged granitoid formation in Saglek Block, Labrador: Zonal growth and crustal reworking of continental crust in the Eoarchean (2017)
  • Author(s): Komiya Tsuyoshi、Yamamoto Shinji、Aoki Shogo、Koshida Keiko、Shimojo Masanori、Sawaki Yusuke、Aoki Kazumasa、Sakata Shuhei、Yokoyama Takaomi D.、Maki Kenshi、Ishikawa Akira、Hirata Takafumi、Collerson Kenneth D.
  • Journal Title: Geoscience Frontiers Volume: 8 Issue: 2 Pages: 355-385
  • DOI: 10.1016/j.gsf.2016.06.013
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Collision-induced post-plateau volcanism: evidence from a seamount on Ontong Java Plateau (2017)
  • Author(s): Hanyu, T., M. L. G. Tejada, K. Shimizu, O. Ishizuka, T. Fujii, J. -I. Kimura, Q. Chang, R. Senda, T. Miyazaki, Y. Hirahara, B. S., Vagalov, K. T., Goto, A. Ishikawa
  • Journal Title: Lithos Volume: 294-295 Pages: 87-96
  • DOI: 10.1016/j.lithos.2017.09.029
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Metasomatic PGE mobilization by carbonatitic melt in the mantle: Evidence from sub-μm-scale sulfide-carbonaceous glass inclusion in Tahitian harzburgite xenolith (2017)
  • Author(s): Akizawa Norikatsu、Miyake Akira、Ishikawa Akira、Tamura Akihiro、Terada Yasuko、Uesugi Kentaro、Takeuchi Akihisa、Arai Shoji、Tanaka Chima、Igami Yohei、Suzuki Katsuhiko、Kogiso Tetsu
  • Journal Title: Chemical Geology Volume: 475 Pages: 87-104
  • DOI: 10.1016/j.chemgeo.2017.10.037
  • Peer Reviewed / Open Access
• [Journal Article] Quantifying the Release of Climate-Active Gases by Large Meteorite Impacts With a Case Study of Chicxulub (2017)
  • Author(s): Artemieva, N., Morgan, J., Gulick, S. P. S., Chenot, E., Christeson, G. L., Claeys, P., Cockell, C. S., Coolen, M. J. L., Ferriere, L, Gebhardt, C., Goto, K., Green, S., Jones, H., Kring, D. A., Lofi, J., Lowery, C. M., Ocampo-Torres, R., Perez-Cruz, L., Pickersgil, A. E., Poelchau, Sato, H. et al.
  • Journal Title: Geophysical Research Letters Volume: 44 Issue: 20 Pages: 10180-10188
  • DOI: 10.1002/2017gl074879
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] コバルトリッチクラストの年代決定 (2) オスミウム同位体層序に基づく形成年代の決定 (2017)
  • Author(s): 後藤孝介・野崎達生・鈴木勝彦
  • Journal Title: コバルトリッチクラストの成り立ち－調査手法の確立に向けて－次世代海洋資源調査技術研究開発成果資料集 Volume: 2 Pages: 46-47
• [Journal Article] Major and trace element compositions and resource potential of ferromanganese crust at Takuyo Daigo Seamount, northwestern Pacific Ocean (2016)
  • Author(s): T. Nozaki, A. Tokumaru, Y. Takaya, Y. Kato, K. Suzuki, and T. Urabe
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 50 Issue: 6 Pages: 527-537
  • DOI: 10.2343/geochemj.2.0430
  • NAID: 130005435142
  • ISSN: 0016-7002, 1880-5973
  • Year and Date: 2016-11-30
  • Peer Reviewed / Open Access
• [Journal Article] Geochemistry of REY-rich mud in the Japanese Exclusive Economic Zone around Minamitorishima Island (2016)
  • Author(s): 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, KR14-02 Cruise Members
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 50 Issue: 6 Pages: 575-590
  • DOI: 10.2343/geochemj.2.0432
  • NAID: 130005435148
  • ISSN: 0016-7002, 1880-5973
  • Year and Date: 2016-11-30
  • Peer Reviewed / Open Access
• [Journal Article] Discovery of extremely REY-rich mud in the western North Pacific Ocean (2016)
  • Author(s): 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., KR13-02 Cruise members
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 50 Issue: 6 Pages: 557-573
  • DOI: 10.2343/geochemj.2.0431
  • NAID: 130005435147
  • ISSN: 0016-7002, 1880-5973
  • Year and Date: 2016-11-30
  • Peer Reviewed / Open Access
• [Journal Article] Stratigraphy and radiolarian ages of stratiform manganese deposits from the Chichibu Belt in the Saiki area, eastern Oita Prefecture, Japan (2016)
  • Author(s): 冨松由希・尾上哲治・野崎達生
  • Journal Title: The Journal of the Geological Society of Japan Volume: 122 Issue: 6 Pages: 267-273
  • DOI: 10.5575/geosoc.2016.0015
  • NAID: 130005253517
  • ISSN: 0016-7630, 1349-9963
  • Year and Date: 2016-06-15
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Preface: Front edge of submarine mineral resources research in Japan (Part 2) (2016)
  • Author(s): K. Suzuki, J. Ishibashi, Y. Kato, and T. Nozaki
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 50 Issue: 6 Pages: 449-452
  • DOI: 10.2343/geochemj.2.0451
  • NAID: 130005435165
  • ISSN: 0016-7002, 1880-5973
  • Peer Reviewed / Open Access
• [Journal Article] 第4の海底鉱物資源『レアアース泥』 (2016)
  • Author(s): 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
  • Journal Title: 日本海水学会誌 Volume: 70 Pages: 90-96
  • NAID: 130006101492
• [Journal Article] 沖縄トラフ海底熱水鉱床の地球化学的研究－黒鉱養殖プロジェクトの本格的開始と進展－ (2016)
  • Author(s): 野崎達生
  • Journal Title: 平成28年度日本鉱業振興会助成研究成果報告書 Volume: － Pages: 25-30
• [Journal Article] 「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━ (2016)
  • Author(s): 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
  • Journal Title: 深田地質研究所年報 Volume: 17 Pages: 1-28
  • NAID: 40021062370
• [Journal Article] 海底下地層構造を把握し鉱床形成メカニズムを解明する：掘削コア試料の記載・地球化学的分析/解析 (2016)
  • Author(s): 野崎達生
  • Journal Title: 海底熱水鉱床の成り立ち－調査手法の確立に向けて－次世代海洋資源調査技術研究開発成果資料集 Volume: － Pages: 51-52
• [Journal Article] Petrology and geochemistry of mafic rocks in the acasta gneiss complex: Implications for the oldest mafic rocks and their origin (2016)
  • Author(s): Koshida, K., Ishikawa, A., Iwamori, H., and Komiya, T.
  • Journal Title: Precambrian Res. Volume: 283 Pages: 190-207
  • DOI: 10.1016/j.precamres.2016.07.004
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Widespread tungsten isotope anomalies and W mobility in crustal and mantle rocks of the Eoarchean Saglek Block, northern Labrador, Canada: implications for early Earth processes and W recycling (2016)
  • Author(s): Liu, J.G., Touboul, M., Ishikawa, A., Walker, R.J., Pearson, D.G.
  • Journal Title: Earth and Planetary Science Letters Volume: 448 Pages: 13-23
  • DOI: 10.1016/j.epsl.2016.05.001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] In situ oxygen-isotope, major-, and trace-element constraints on the metasomatic modification and crustal origin of a diamondiferous eclogite from Roberts Victor, Kaapvaal Craton (2016)
  • Author(s): Riches, A.J.V., Ickert, R.B., Pearson, D.G., Stern, R.A., Jackson, S.E., Ishikawa, A., Kjarsgaard, B.A., Gurney, J.J.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 174 Pages: 345-359
  • DOI: 10.1016/j.gca.2015.11.028
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Occurrence and geochronology of the Eoarchean, ~3.9 Ga, Iqaluk Gneiss in the Saglek Block, northern Labrador, Canada: Evidence for the oldest supracrustal rocks in the world (2016)
  • Author(s): Shimojo, M., Yamamoto, S., Sakata, S., Maki, K., Sawaki, Y., Ishikawa, A., Aoki, K., Okada, Y., Aoki, S., Koshida, K., Hirata, T., Collerson, K. D., Komiya, T.
  • Journal Title: Precambrian Research Volume: 278 Pages: 218-243
  • DOI: 10.1016/j.precamres.2016.03.018
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The formation of peak rings in large impact craters (2016)
  • Author(s): Joanna V. Morgan, Sean P. S. Gulick, Timothy Bralower, Elise Chenot, Gail Christeson, Philippe Claeys, Charles Cockell, Gareth S. Collins, Marco J. L. Coolen, Ludovic Ferriere, Catalina Gebhardt, Kazuhisa Goto, Heather Jones, David A. Kring, Erwan Le Ber, Johanna Lofi, Xiao Long, Honami Sato, et al.
  • Journal Title: Science Volume: 354 Issue: 6314 Pages: 878-882
  • DOI: 10.1126/science.aah6561
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa. (2016)
  • Author(s): Onoue, T., Sato, H., Yamashita, D., Ikehara, M., Yasukawa, K., Fujinaga, K., Kato, Y., Matsuoka, A.
  • Journal Title: Scientific Reports Volume: 6 Issue: 1 Pages: 29609-29609
  • DOI: 10.1038/srep29609
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] ちきゅう船上で実施した熱水鉱床開発に伴う海洋環境への影響調査―熱水性鉱石の重金属溶出ポテンシャルと溶出金属元素の基礎生産者への影響－ (2018)
  • Author(s): 淵田茂司・山岸隆博・越川海・河地正伸・福原達雄・島田和彦・石橋純一郎・熊谷英憲・野崎達生・前田玲奈・CK16-05乗船者一同
  • Organizer: ブルーアースサイエンス・テク2018
• [Presentation] レーザー誘起破壊分光法による深海リアルタイム岩石化学分析センサの開発 (2018)
  • Author(s): 髙橋朋子・ソーントン ブレア・佐藤匠・吉野聡一・高谷雄太郎・野崎達生・大木孝一・大木俊彦・作花哲夫
  • Organizer: レーザー学会学術講演会第38回年次大会
  • Invited
• [Presentation] 伊豆・小笠原弧海底熱水域における鉱石のESR及び放射非平衡年代決定 (2017)
  • Author(s): 藤原泰誠・豊田新・内田乃・石橋純一郎・野崎達生
  • Organizer: ブルーアース2017
  • Place of Presentation: 日本大学 (東京都千代田区)
  • Year and Date: 2017-03-02
• [Presentation] 沖縄トラフ伊平屋北海丘熱水域における流体包有物均質化温度と変質鉱物に関する研究 (2017)
  • Author(s): 向江信寛・米津幸太郎・Thomas Tindell・石橋純一郎・野崎達生・高井研・渡邊公一郎
  • Organizer: ブルーアース2017
  • Place of Presentation: 日本大学 (東京都千代田区)
  • Year and Date: 2017-03-02
• [Presentation] Late Neogene marine osmium isotopic records of the Mediterranean and Atlantic sediments (2017)
  • Author(s): Kuroda, J., Jimenez-Espejo, F. J., Nozaki, T., Gennari, R., Lugli, S., Manzi, V., Roveri, M., Flecker, R., Suzuki, K., Yoshimura, T., Sierro, F. J. and Ohkouchi, N.
  • Organizer: European Geosciences Union General Assembly 2017
  • Int'l Joint Research
• [Presentation] Experimental hydrothermal alteration of andesite at 325 °C, 300 bar: Comparison with the hydrothermal fluids in the Hatoma Knoll, southern Okinawa Trough (2017)
  • Author(s): Saitoh, M., Shibuya, T., Nozaki, T., Torimoto, J., Ueda, H., Sato, T. and Suzuki, K.
  • Organizer: European Geosciences Union General Assembly 2017
  • Int'l Joint Research
• [Presentation] Sulfide core sample from the deep-sea artificial hydrothermal vent at the Iheya-North Knoll, Okinawa Trough: Natural analogue of sub-seafloor mineralization on a seafloor (2017)
  • Author(s): Nozaki, T., Nagase, T., Torimoto, J., Takaya. Y., Ishibashi, J.-I., Shimada, K., Watanabe, M., Masaki, Y., Saruhashi, T. and Kyo, M.
  • Organizer: 2017 Geological Society of America Cordilleran Section Meeting
  • Int'l Joint Research
• [Presentation] Long-term sensor monitoring equipped with the Kuroko cultivation apparatus on the deep-sea artificial hydrothermal vent at the middle Okinawa Trough (2017)
  • Author(s): Masaki, Y., Nozaki, T., Saruhashi, T., Kyo, M., Sakurai, N., Yokoyama, T., Akiyama, K., Maeda, L. and Kumagai, H.
  • Organizer: 2017 Geological Society of America Cordilleran Section Meeting
  • Int'l Joint Research
• [Presentation] Characterization of seafloor hydrothermal deposits by gamma ray logging in the Izena Hole, the mid-Okinawa Trough (2017)
  • Author(s): Kitada, K., Yamada, Y., Sanada, Y., Nozaki, T., Kumagai, H., Ishibashi, J.-I. and Maeda, L.
  • Organizer: 2017 Geological Society of America Cordilleran Section Meeting
  • Int'l Joint Research
• [Presentation] Impact event and conodont faunal turnover across the middle-upper Norian transition in the Upper Triassic of Japan (2017)
  • Author(s): Onoue, T., Sato, H. and Yamashita, D.
  • Organizer: The 4th International Conodont Symposium
  • Int'l Joint Research
• [Presentation] Quantitative elemental analysis of water-submerged solids using PLS with temperature segmented database for LIBS (2017)
  • Author(s): Takahashi, T., Thornton, B., Takaya, Y., Nozaki, T., Sato, T., Ohki, T., Ohki, K. and Sakka, T.
  • Organizer: 9th Euro-Mediterranean Symposium on LIBS
  • Int'l Joint Research
• [Presentation] Long-term observations of pressure, temperature and flow rate for deep-sea hydrothermal fluid at the middle Okinawa Trough (2017)
  • Author(s): Masaki, Y., Nozaki, T., Saruhashi, T., Kyo, M., Sakurai, N., Yokoyama, T., Akiyama, K., Maeda, L. and Kumagai, H.
  • Organizer: Joint Scientific Assembly of the International Association of Geodesy and International Association of Seismology and Physics of the Earth’s Interior 2017
  • Int'l Joint Research
• [Presentation] Mineralization of Ag-rich sulfide minerals in chimney samples at Bayonnaise Knoll, Izu-bonin Arc, west Pacific Ocean (2017)
  • Author(s): Kawaguchi, S., Yonezu, K., Tindell, T., Watanabe, K., Ishibashi, J.-I., Shimada, K and Nozaki, T.
  • Organizer: Asia Oceania Geosciences Society 14th Annual Meeting
  • Int'l Joint Research
• [Presentation] Osmium isotope and PGE signatures in the deep-sea deposits from Japan: Implications for the Late Triassic impact event (2017)
  • Author(s): Sato, H., Nozaki, T., Ishikawa, A., Onoue, T., Kimura, J.-I., Chang, Q. and Suzuki, K.
  • Organizer: 27th V.M. Goldschmidt conference
  • Int'l Joint Research
• [Presentation] Re-Os and highly siderophile element systematics of peridotite xenoliths from Hawaii (2017)
  • Author(s): Ishikawa, A., Akizawa, N., Kogiso, T. and Suzuki, K.
  • Organizer: 27th V.M. Goldschmidt conference
  • Int'l Joint Research
• [Presentation] Determination of highly siderophile element concentrations and 187Os/188Os ratio for ferromanganese nodule reference materials (2017)
  • Author(s): Tokeshi, S., Ishikawa, A. and Suzuki, K.
  • Organizer: 27th V.M. Goldschmidt conference
  • Int'l Joint Research
• [Presentation] Application of PLS to quantitative elemental analysis of rocks submerged in seawater for LIBS (2017)
  • Author(s): Takahashi, T., Thornton, B., Takaya, Y., Nozaki, T., Ohki, T., Ohki, K. and Sakka, T.
  • Organizer: 2nd Asian Symposium on Laser Induced Breakdown Spectroscopy
  • Int'l Joint Research / Invited
• [Presentation] A case study on resistivity and spectral IP properties of active modern seafloor hydrothermal deposits in Japan (2017)
  • Author(s): Komori, S., Masaki, Y., Tanikawa, W., Torimoto, J., Ohta, Y., Makio, M., Maeda, L., Ishibashi, J., Nozaki, T., Tadai, O., Kumagai, H. and CK16-01 on board member
  • Organizer: 23rd European Meeting of Environmental and Engineering Geophysics
  • Int'l Joint Research
• [Presentation] In-situ quantitative analysis of submerged rocks using laser-induced breakdown spectroscopy (2017)
  • Author(s): Takahashi, T., Thornton, B., Takaya, Y., Nozaki, T., Sato, T., Ohki, T., Ohki, K. and Sakka, T.
  • Organizer: Oceans 2017
  • Int'l Joint Research
• [Presentation] Geochemical approach to understand ore genesis of mineral deposits with the Earth’s history (2017)
  • Author(s): Nozaki, T.
  • Organizer: Japanese-American-German Frontiers of Science Symposium
  • Int'l Joint Research
• [Presentation] Impact event and radiolarian faunal turnover in the Upper Triassic bedded chert succession, Mino Belt, Japan (2017)
  • Author(s): Onoue, T., Sato, H. and Yamashita, D.
  • Organizer: Proceedings of InterRad XV
  • Int'l Joint Research
• [Presentation] Natural gamma ray logging at sea-floor hydrothermal deposit in Izena Hole off-shore Okinawa (2017)
  • Author(s): Sanada, Y., Yamada, Y., Kitada, K., Nozaki, T., Kumagai, H., Ishibashi, J.-i., Maeda, L. and CK16-05 Cruise member
  • Organizer: The 23rd Formation Evaluation Symposium of Japan
  • Int'l Joint Research
• [Presentation] Long-term monitoring of hydrothermal fluid and in-situ mineral precipitation experiment using a deep-sea artificial hydrothermal vent (2017)
  • Author(s): Tatsuo Nozaki
  • Organizer: 3rd Annual Asia-Pacific Deep Sea Mining
  • Int'l Joint Research
• [Presentation] Distribution of hydrothermal fluid around the ore body in the subseafloor of the Izena hydrothermal field (2017)
  • Author(s): Toki, T., Otake, T., Ishibashi, J.-I., Matsui, Y., Kawagucci, S., Kato, H., Fuchida, S., Miyahara, R., Tsutsumi, A., Kawakita, R., Uza, H., Uehara, R., Shinjo, R., Nozaki, T., Kumagai, H., Maeda, L. and CK16-05 on-board member
  • Organizer: American Geophysical Union Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Discovery of fracture networks in the basal part of modern hydrothermal system in Okinawa Tough, SW Japan (2017)
  • Author(s): Saito, S., Sanada, Y., Kido, Y., Hamada, Y., Shiraishi, K., Hsiung, K., Yoshimoto, K., Eng, C., Tsuji, T., Meada, L., Kumagai, H., Nozaki, T., Ishibashi, J.-I. and CK16-01 Cruise member
  • Organizer: American Geophysical Union Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Long-term hydrothermal temperature and pressure monitoring equipped with a Kuroko cultivation apparatus on the deep-sea artificial hydrothermal vent at the middle Okinawa trough (2017)
  • Author(s): Masaki, Y., Nozaki, T., Saruhashi, T., Kyo, M., Sakurai, N., Yokoyama, T., Akiyama, K., Kumagai, H., Maeda, L. and Kinoshita, M.
  • Organizer: American Geophysical Union Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Highly siderophile elements and Os isotope signatures in the K-Pg transition of the Chicxulub peak-ring rocks (2017)
  • Author(s): Sato, H., Ishikawa, A., Ferriere, L., Morgan, J.V., Gulick, S.P.S. and IODP-ICDP Expedition 364 Scientists
  • Organizer: American Geophysical Union Fall Meeting 2017
  • Int'l Joint Research
• [Presentation] Darreh-Rasoul iron-lead mineralization in lower cretaceous Clastic- Carbonate sequence in southeast of Malayer and its relation with Sedimentary-Exhalative resources (2017)
  • Author(s): Aghamollaie, K., Rastad, E. and Nozaki, T.
  • Organizer: The 36th National and the 3rd International Geosciences Congress
  • Int'l Joint Research
• [Presentation] Meteorite impact event recorded in the Upper Triassic deep-sea deposits from Japan (2017)
  • Author(s): Sato, H., Onoue, T., Shirai, N., Nozaki, T., Ishikawa, A. and Suzuki, K.
  • Organizer: Planetary Exploration Research Center International symposium on Dust & Parent Bodies
  • Int'l Joint Research
• [Presentation] Preliminary results of the CK16-05 Cruise: Scientific drilling in Okinawa Trough of coring, logging using geothermal tool and refit of Long-term monitoring apparatus (2017)
  • Author(s): Kumagai, H., Ishibashi, J.-I., Nozaki, T., Maeda, L., Yamada, Y., Saruhashi, T., Kyo, M. and CK16-05 On-board Member
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Discussion on gamma ray and temperature downhole logging data at sea-floor hydrothermal deposit in Izena Hole off-shore Okinawa (2017)
  • Author(s): Sanada, Y., Yamada, Y., Kitada, K., Nozaki, T., Kumagai, H., Ishibashi, J.-I., Maeda, L. and CK16-05 on-board member
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Electrical features of the submarine hydrothermal system around the north Iheya Knoll area, Okinawa, Japan, inferred from resistivity and IP properties of drilling samples form the Chikyu CK16-01 cruise (2017)
  • Author(s): Komori, S., Masaki, Y., Tanikawa, W., Torimoto, J., Ota, Y., Makio, M., Maeda, L., Ishibashi, J.-I., Nozaki, T., Kumagai, H., Tadai, O., CK16-01 Cruise member
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Estimation of subseafloor mineralization condition at active hydrothermal fields in the Okinawa Trough based on mineralogical and geochemical analysis (2017)
  • Author(s): Totsuka, S., Ishibashi, J.-I., Nozaki, T., Shimada, K. and Kimura, J.-I.
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Evaluation of metal dissolution from fresh hydrothermal core samples collected at Izena Hole during CK16-05 and rapid detection of their toxicity on marine phytoplankton community; Environmental impact assessment for seafloor metal-mining (2017)
  • Author(s): Fuchida, S., Yamagishi, T., Koshikawa, H., Kawachi, M., Fukuhara, T., Kumagai, H., Nozaki, T., Ishibashi, J.-I., Maeda, L. and CK16-05 shipboard scientists
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Lateral distribution of extremely REY-rich mud layer in the southern part of the Minamitorishima EEZ (2017)
  • Author(s): Fujinaga, K., Yasukawa, K., Nozaki, T., Machida, S., Iijima, K., Tateno, H., Kawasaki, T., Takahashi, A., Amakawa, H., Torimoto, J., Fukami, Y., Suzuki, K., Nakamura, K., Kato, Y. and MR15-02 cruise members
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Results of physical property measurements obtained during the CHIKYU cruise CK16-05 of hydrothermal fields at the middle Okinawa Trough (2017)
  • Author(s): Masaki, Y., Komori, S., Saitoh, M., Kret, K., Minamide, K., Ohno, M., Yamamoto, H., McIntosh, I., Tanikawa, W., Nozaki, T., Kumagai, H., Ishibashi, J.-I., Maeda, L. and CK16-05 on board member
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] The latest research on REY-rich mud in the Pacific Ocean (2017)
  • Author(s): Kato,Y., Nakamura, K., Fujinaga, K.,Yasukawa, K., Takaya, Y., Ohta, J., Tanaka, E., Mimura, K., Iijima, K., Machida, S., Nozaki, T., Kimura, J.-I. and Iwamori, H.
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Lithological and geochemical features of the Permian-Triassic boundary at the Gujo-Hachiman section in the Mino-Tanba belt, central Japan (2017)
  • Author(s): Yano, M., Fujinaga, K., Yasukawa, K., Nozaki, T., Kuroda, J., Kuwahara, K. and Kato, Y.
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Chemical and isotopic compositions of interstitial water from the Izena hydrothermal field (2017)
  • Author(s): Toki, T., Otake, T., Ishibashi, J.-I., Matsui, Y., Kato, H., Fuchida, S., Miyahara, R., Tsutsumi, A., Nakamura, S., Kawakida, R., Uza, H., Uehara, R., Shinjo, R., Nozaki, T., Kumagai, H., Maeda, L. and CK16-05 Onboard Scientists
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Mineralization of Ag-rich sulfide minerals in chimney samples at Bayonnaise Knoll, Izu-bonin Arc (2017)
  • Author(s): Kawaguchi, S., Yonezu, K., Tindell, T., Ishibashi, J.-I., Shimada, K. and Nozaki, T.
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Challenge to monitor the nearby hydrological response to the drilling into hydrothermal venting area: A case for mid-Okinawa Trough Noho hydrothermal site (2017)
  • Author(s): Kinoshita, M., Masaki, Y., Tanikawa, W.., Hamada, Y., Nozaki, T., Kumagai, H., Maeda, L. and Yamamoto, H.
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] 世界最古 (>3.92Ga) の堆積岩の地質学的産状と化学組成から推定する初期太古代の海洋組成 (2017)
  • Author(s): 吉田聡・越田渓子・石川晃・小宮剛
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Geochemistry and Re-Os and 146Sm-142Nd isotope systematics of mafic rocks in the Acasta Gneiss Complex: discovery of the oldest terrestrial rock and implications for the Earth-forming materials (2017)
  • Author(s): 小宮剛・越田渓子・石川晃・鈴木勝彦
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Hydrothermal silicification of mafic and ultramafic rocks in the Barberton Greenstrone Belt, South Africa: relationship between bioessential element influxes into the seawater and secular variation of atmospheric CO2 (2017)
  • Author(s): 小宮剛・梅田早織・石川晃
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Metasomatic PGE mobility in the suboceanic mantle: an implication from sub-μm-sized sulfides from Tahitian peridotite xenolith (2017)
  • Author(s): 秋澤紀克・小木曽哲・三宅亮・石川晃
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] Highly siderophile elements in Hawaiian xenoliths: implications for the origin of low187Os/188Os signatures in oceanic mantle (2017)
  • Author(s): 石川晃・鈴木勝彦・小木曽哲・秋澤紀克
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] The Chicxulub crater cores recovered by IODP-ICDP Expedition 364: Status Report (2017)
  • Author(s): Tomioka, N., Yamaguchi, K., E., Goto, K., Sato, H. and Expedition 364 Scientists
  • Organizer: 日本地球惑星科学連合2017年大会
• [Presentation] 沖縄トラフ海底熱水鉱床における検層調査 (2017)
  • Author(s): 真田佳典・斎藤実篤・濱田洋平・木戸ゆかり・山田泰広・北田数也・野崎達生・熊谷英憲・石橋純一郎・前田玲奈・CK14-04，CK16-01，CK16-05乗船者一同
  • Organizer: 物理探査学会第136回学術講演会
• [Presentation] 科学掘削により明らかになった沖縄トラフ熱水域の海底下地質構造 (2017)
  • Author(s): 石橋純一郎・熊谷英憲・野崎達生・前田玲奈
  • Organizer: 物理探査学会第136回学術講演会
  • Invited
• [Presentation] CK16-05航海の掘削コア試料から視る沖縄トラフ伊是名海穴の海底下鉱化作用 (2017)
  • Author(s): 野崎達生・熊谷英憲・石橋純一郎・高谷雄太郎・前田玲奈・CK16-05航海乗船者一同
  • Organizer: 資源地質学会第67回年会講演会
• [Presentation] 沖縄トラフ第三久米海丘の硫化物チムニーの記載学的特徴 (2017)
  • Author(s): 鳥本淳司・山本啓之・川口慎介・熊谷英憲・野崎達生・戸塚修平
  • Organizer: 資源地質学会第67回年会講演会
• [Presentation] 科学掘削試料解析に基づく沖縄トラフ熱水域海底下の鉱物形成環境の解明 (2017)
  • Author(s): 戸塚修平・石橋純一郎・野崎達生・島田和彦・木村純一・常青
  • Organizer: 資源地質学会第67回年会講演会
• [Presentation] 沖縄トラフ伊平屋北海丘熱水域の流体包有物マイクロサーモメトリーと鉱化作用 (2017)
  • Author(s): 向江信寛・米津幸太郎・Thomas Tindell・石橋純一郎・野崎達生・高井研・CK14-04及びCK16-01乗船者一同
  • Organizer: 資源地質学会第67回年会講演会
• [Presentation] 茨城県日立鉱山産tetradymite様未知鉱物の結晶構造 (2017)
  • Author(s): 栗林貴弘・長瀬敏郎・野崎達生・石橋純一郎・島田和彦・門馬綱一
  • Organizer: 日本鉱物科学会2017年年会
• [Presentation] 海底熱水域掘削試料に含まれる方鉛鉱のLA-MC-ICP-MS鉛同位体比測定 (2017)
  • Author(s): 戸塚修平・石橋純一郎・野崎達生・島田和彦・木村純一・常青
  • Organizer: 日本地球化学会第64回年会
• [Presentation] 伊是名海穴における海底下鉱体周辺の熱水性成分の分布 (2017)
  • Author(s): 土岐知弘・大竹翼・石橋純一郎・松井洋平・川口慎介・加藤大和・淵田茂司・宮原玲奈・堤映日・中村峻介・川喜田竜平・宇座大貴・上原力・新城竜一・野崎達生・熊谷英憲・前田玲奈・CK16-05乗船者一同
  • Organizer: 日本地球化学会第64回年会
• [Presentation] 強親鉄性元素に枯渇した太古代マントルとその意義 (2017)
  • Author(s): 石川晃・小宮剛・鈴木勝彦・Kenneth D. Collerson・Jingao Liu・D. Graham Pearson
  • Organizer: 日本地球化学会第64回年会
• [Presentation] タヒチ／モーレア島産マントル捕獲岩から探る海洋マントルの地球化学的多様性 (2017)
  • Author(s): 秋澤紀克・石川晃・小木曽哲
  • Organizer: 日本地球化学会第64回年会
• [Presentation] 天体衝突による大気の酸化仮説：後期太古代の地質記録による検証 (2017)
  • Author(s): 斎藤誠史・黒澤耕介・臼井洋一・奥村知世・尾上哲治・佐藤峰南・石田湧也・渋谷岳造・西澤学・松井洋平・澤木佑介・佐藤友彦・上野雄一郎
  • Organizer: 日本地球化学会第64回年会
• [Presentation] KR16-17航海で回収した黒鉱養殖装置のセンサーデータおよび沈殿物：人工熱水孔の長期モニタリングと析出実験 (2017)
  • Author(s): 野崎達生・正木裕香・長瀬敏郎・鳥本淳司・斎藤誠史・髙谷雄太郎・石橋純一郎・島田和彦・渡邊正之・横山貴大・秋山敬太・櫻井紀旭・猿橋具和・許正憲・熊谷英憲・前田玲奈・高井研
  • Organizer: 日本地質学会第124年学術大会
• [Presentation] レアアース泥研究の最新成果と南鳥島EEZにおける開発の実現に向けた取り組み (2017)
  • Author(s): 加藤泰浩・中村謙太郎・藤永公一郎・安川和孝・高谷雄太郎・大田隼一郎・田中えりか・見邨和英・飯島耕一・町田嗣樹・野崎達生・木村純一・岩森光
  • Organizer: 日本地質学会第124年学術大会
• [Presentation] 世界最古の炭酸塩岩の地質学的産状と化学組成から推定する初期太古代の海洋中の生命必須金属元素濃度 (2017)
  • Author(s): 吉田聡・石川晃・小宮剛
  • Organizer: 日本地質学会第124年学術大会
• [Presentation] 天体衝突による大気の酸化仮説：後期太古代の地質記録による検証 (2017)
  • Author(s): 斎藤誠史・黒澤耕介・臼井洋一・奥村知世・尾上哲治・佐藤峰南・石田湧也・渋谷岳造・西澤学・松井洋平・澤木佑介・佐藤友彦・上野雄一郎
  • Organizer: 日本地質学会第124年学術大会
• [Presentation] 伊是名海穴の科学掘削が語る海底下鉱化作用 (2017)
  • Author(s): 野崎達生・熊谷英憲・石橋純一郎・高谷雄太郎・前田玲奈・CK16-05航海乗船者一同
  • Organizer: InterRidge-Japan研究集会
• [Presentation] 鉛同位体比から見た中部沖縄トラフの熱水鉱化作用 (2017)
  • Author(s): 戸塚修平・石橋純一郎・野崎達生・島田和彦・木村純一・常青
  • Organizer: InterRidge-Japan研究集会
• [Presentation] 地球化学的解析に基づく中部沖縄トラフの熱水変質作用 (2017)
  • Author(s): 堤映日・石橋純一郎・土岐知弘・高谷雄太郎・野崎達生・CK16-05乗船者一同
  • Organizer: InterRidge-Japan研究集会
• [Presentation] Results of physical property measurements obtained during the Chikyu cruise CK16-01 to hydrothermal fields of the central Okinawa Trough (2016)
  • Author(s): Masaki, Y., Tanikawa, W., Komori, S., Torimoto, J., Makio, M., Ohta, Y., Nozaki, T., Ishibashi, J.-I., Kumagai, H., Maeda, L. and Hamada, Y.
  • Organizer: 2016 AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Drilling constraints on bimodal volcanism and subsequent formation of contrasted uppermost crustal compositions at the middle Okinawa Trough (2016)
  • Author(s): Yamasaki, T., Takaya, Y., Mukae, N., Nagase, T., Tindell, T., Totsuka, S., Uno, Y., Yonezu, K., Nozaki, T., Ishibashi, J.-I., Kumagai, H., Maeda, L. and CK16-01 (Exp. 908) Shipboard Scientist
  • Organizer: 2016 AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] First results from the in-situ temperature measurements by the newly developed downhole tool during the drilling cruise in the hydrothermal fields of the mid-Okinawa Trough (2016)
  • Author(s): Kitada, K., Wu, H. Y., Miyazaki, J., Akiyama, K., Nozaki, T., Ishibashi, J.-I., Kumagai, H., Maeda, L. and the CK16-01 shipboard scientific party
  • Organizer: 2016 AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Molybdenum isotopes in modern marine hydrothermal Fe/Mn deposits: implications for Archean and Paleoproterozoic Mo cycles (2016)
  • Author(s): Goto, K. T., Hein, J. R., Shimoda, G., Aoki, S., Ishikawa, A., Suzuki, K., Gordon, G. W. and Anbar, A. D.
  • Organizer: 2016 AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] IODP/ICDP Expedition 364-Drilling the Cretaceous-Paleogene Chicxulub impact crater: Insights into large craters formation and their effect on life (2016)
  • Author(s): Gulick, S. P. S., Morgan, J. V., Urrutia-Fucugauchi, J., Bralower, T., Chenot, E., Christeson, G., Claeys, P., Cockell, C., Collins, G. S., Coolen, M. J. L., Gebhardt, C., Goto, K., Kring, D. A., Long, X., Lowery, C., Mellett, C., Ocampo-Torres, R., Osinski, G. R., Perez-Cruz, L., Pickersgill, A.,,, Sato, H.,,, et al.
  • Organizer: 2016 AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] 沖縄県沖海底熱水域における掘削試料の比抵抗・IP特性（ちきゅうCK16-01航海） (2016)
  • Author(s): 小森省吾・大田優介・正木裕香・谷川亘・鳥本淳司・槙尾雅人・前田玲奈・石橋純一郎・野崎達生・熊谷英憲・CK16-01乗船者一同
  • Organizer: 物理探査学会第135回学術講演会
  • Place of Presentation: 室蘭工業大学 (北海道室蘭市)
  • Year and Date: 2016-10-26
• [Presentation] 深海底での微生物現場培養実験から紐解く鉄を基盤とした海底下微生物圏：放射光源X線分析法を駆使した微生物による地殻内エネルギー獲得戦略の解明 (2016)
  • Author(s): 大橋優莉・光延聖・坂田昌弘・鈴木優美・牧田寛子・野崎達生・川口慎介
  • Organizer: 日本微生物生態学会第31回大会
  • Place of Presentation: 横須賀市文化会館 (神奈川県横須賀市)
  • Year and Date: 2016-10-23
• [Presentation] Osmium isotope stratigraphy and chemical speciation of elements of ferro-manganese crusts in the Western Pacific seamounts (2016)
  • Author(s): Suzuki, K., Goto, K. T., Nozaki, T., Kashiwabara, T., Iijima, K. and Usui, A.
  • Organizer: 45th Underwater Mining Conference
  • Place of Presentation: Incheon, South Korea
  • Year and Date: 2016-10-09
  • Int'l Joint Research
• [Presentation] Potential of Logging-while-Drilling (LWD) for deciphering subseafloor mineralization processes (2016)
  • Author(s): Kumagai, H., Saito, S., Nozaki, T., Ishibashi, J.-I., Maeda, L. and CK16-01 on-board member
  • Organizer: 45th Underwater Mining Conference
  • Place of Presentation: Incheon, South Korea
  • Year and Date: 2016-10-09
  • Int'l Joint Research
• [Presentation] Development of the cultivation system for seafloor hydrothermal deposit (2016)
  • Author(s): Akiyama, K., Kyo, M., Saruhashi, T., Sakurai, N., Yokoyama, T., Nozaki, T., Watanabe, M. and Masaki, Y.
  • Organizer: Techno-Ocean 2016
  • Place of Presentation: 神戸コンベンションセンター (兵庫県神戸市)
  • Year and Date: 2016-10-06
  • Int'l Joint Research
• [Presentation] Exploration on deep water hydrothermal sediments with logging while drilling at Okinawa Trough (SIP-II) (2016)
  • Author(s): Sanada, Y., Saito, S., Hamada, Y., Kido, Y., Kumagai, H., Nozaki, T., Ishibashi, J., Maeda, L. and CK16-01 Cruise member
  • Organizer: The 22nd Formation Evaluation Symposium of Japan
  • Place of Presentation: JOGMEC TRC (千葉県千葉市)
  • Year and Date: 2016-09-29
  • Int'l Joint Research
• [Presentation] ウルツ鉱の組織と形成過程 (2016)
  • Author(s): 長瀬敏郎・野崎達生・石橋純一郎・山田亮一・高井研・川口慎介・栗林貴弘
  • Organizer: 日本鉱物科学会2016年年会
  • Place of Presentation: 金沢大学 (石川県金沢市)
  • Year and Date: 2016-09-23
• [Presentation] 伊豆・小笠原弧から採取された熱水性鉱石に含まれる重晶石の年代測定 (2016)
  • Author(s): 藤原泰誠・豊田新・内田乃・石橋純一郎・野崎達生
  • Organizer: 日本地球化学会第63回年会
  • Place of Presentation: 大阪市立大学 (大阪府大阪市)
  • Year and Date: 2016-09-14
• [Presentation] 熱水性鉄・マンガン酸化物のMo同位体比：太古代・原生代前期Mo循環への示唆 (2016)
  • Author(s): 後藤孝介・James R. Hein・下田玄・青木翔吾・石川晃・鈴木勝彦
  • Organizer: 日本地球化学会第63回年会
  • Place of Presentation: 大阪市立大学 (大阪府大阪市)
  • Year and Date: 2016-09-14
• [Presentation] Pitcairn玄武岩中の白金族元素の存在度とOs同位体比 (2016)
  • Author(s): 仙田量子・羽生毅・石川晃・川畑博・高橋俊郎・鈴木勝彦
  • Organizer: 日本地球化学会第63回年会
  • Place of Presentation: 大阪市立大学 (大阪府大阪市)
  • Year and Date: 2016-09-14
• [Presentation] 海洋下マントルのメタソマティズム：タヒチ産マントル捕獲岩を用いた岩石学的考察 (2016)
  • Author(s): 秋澤紀克・小木曽哲・石川晃・荒井章司
  • Organizer: 日本地球化学会第63回年会
  • Place of Presentation: 大阪市立大学 (大阪府大阪市)
  • Year and Date: 2016-09-14
• [Presentation] アカスタ片麻岩体苦鉄質岩の142Nd同位体から制約する冥王代マントル進化 (2016)
  • Author(s): 越田渓子・石川晃・横山哲也・鏡味沙耶・深井稜汰・小宮剛
  • Organizer: 日本地球化学会第63回年会
  • Place of Presentation: 大阪市立大学 (大阪府大阪市)
  • Year and Date: 2016-09-14
• [Presentation] 海洋島マントル捕獲岩の強親鉄性元素組成から探る核-マントル相互作用 (2016)
  • Author(s): 石川晃・鈴木勝彦・小木曽哲・秋澤紀克
  • Organizer: 日本地球化学会第63回年会
  • Place of Presentation: 大阪市立大学 (大阪府大阪市)
  • Year and Date: 2016-09-14
• [Presentation] 南鳥島沖水深約5,700m の海底面下から採取したレアアース泥の基本的物性 (2016)
  • Author(s): 森澤友博・藤永公一郎・安川和孝・川崎健寛・加藤泰浩・野崎達生・飯島耕一・北誥昌樹・御手洗義夫・桑原拓馬
  • Organizer: 第51回地盤工学研究発表会
  • Place of Presentation: 岡山大学 (岡山県岡山市)
  • Year and Date: 2016-09-13
• [Presentation] Development of methods for quantitative analysis of metal compositions of deep-sea rocks (2016)
  • Author(s): Takahashi, T., Thornton, B., Takaya, Y., Nozaki, T., Sato, T., Ohki, T., Ohki, K. and Sakka, T.
  • Organizer: 9th International Conference on Laser-Induced Breakdown Spectroscopy (LIBS)
  • Place of Presentation: Chamonix-Mont-Blanc, France
  • Year and Date: 2016-09-12
  • Int'l Joint Research
• [Presentation] 沖縄トラフ伊平屋北海丘の人工熱水孔から採取された硫化物コア試料：海底下鉱化作用の再現 (2016)
  • Author(s): 野崎達生・長瀬敏郎・鳥本淳司・髙谷雄太郎・石橋純一郎・島田和彦・渡邊正之・正木裕香・横山貴大・秋山敬太・櫻井紀旭・猿橋具和・許正憲・熊谷英憲・前田玲奈・高井研
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学 (東京都世田谷区)
  • Year and Date: 2016-09-10
• [Presentation] 三畳紀後期ノーリアンの遠洋性堆積岩を用いたオスミウム同位体変動からみる地球外物質付加の検討 (2016)
  • Author(s): 佐藤峰南・野崎達生・石川晃・尾上哲治・木村純一・常青・鈴木勝彦
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学 (東京都世田谷区)
  • Year and Date: 2016-09-10
• [Presentation] 南鳥島EEZ南東部全域に分布するマンガンノジュール～YK16-01航海速報～ (2016)
  • Author(s): 町田嗣樹・飯島耕一・下村遼・安川和孝・藤永公一郎・野崎達生・金子純二・大田隼一郎・山本浩文・高谷雄太郎・石井輝秋・佐藤太一・中村謙太郎・加藤泰浩
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学 (東京都世田谷区)
  • Year and Date: 2016-09-10
• [Presentation] 海の鉱物資源の全容解明へ向けた新しい試み (2016)
  • Author(s): 加藤泰浩・岩森光・中村謙太郎・尾上哲治・野崎達生・藤永公一郎・町田嗣樹・高谷雄太郎・安川和孝・大田隼一郎
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学 (東京都世田谷区)
  • Year and Date: 2016-09-10
• [Presentation] 南鳥島EEZ南部における超高濃度レアアース泥の地球化学的特徴および分布状況 (2016)
  • Author(s): 藤永公一郎・安川和孝・中村謙太郎・髙谷雄太郎・大田隼一郎・大矢和孝・町田嗣樹・野崎達生・飯島耕一・加藤泰浩
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学 (東京都世田谷区)
  • Year and Date: 2016-09-10
• [Presentation] ちきゅう (CK16-01) 航海における沖縄海底熱水域掘削試料の船上物性測定 (2016)
  • Author(s): 正木裕香・谷川亘・小森省吾・鳥本淳司・槙尾雅人・大田雄介・濱田洋平・野崎達生・石橋純一郎・熊谷英憲・CK16-01 Leg 2 乗船者一同
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学 (東京都世田谷区)
  • Year and Date: 2016-09-10
• [Presentation] カナダ・ラブラドル，サグレック岩体の堆積岩から推定する初期海洋の化学組成と生命の痕跡 (2016)
  • Author(s): 吉田聡・田代貴志・石川晃・小宮剛
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学 (東京都世田谷区)
  • Year and Date: 2016-09-10
• [Presentation] 南アフリカ・バーバートン緑色岩帯にみられる初期太古代の海底熱水活動による珪化変質作用 (2016)
  • Author(s): 梅田早織・石川晃・小宮剛
  • Organizer: 日本地質学会第123年学術大会
  • Place of Presentation: 日本大学 (東京都世田谷区)
  • Year and Date: 2016-09-10
• [Presentation] Application of LWD with time-base temperature and pressure data to deep water hydrothermal deposits at Okinawa Trough (2016)
  • Author(s): Sanada, S., Saito, S., Hamada, Y., Tsuji, T., Shiraishi, K., Hsiung, K.-H., Eng, C., Yoshimoto, K., Kido, Y., Kumagai, H., Nozaki, T., Ishibashi, J.-I., Maeda, L. and CK16-01 Shipboard Party
  • Organizer: SPWLA Asia & Australia -Regional Conference 2016
  • Place of Presentation: Bangkok, Thailand
  • Year and Date: 2016-08-29
  • Int'l Joint Research
• [Presentation] Rapid growth of mineral deposits at artificial seafloor hydrothermal vents (2016)
  • Author(s): Nozaki, T., Ishibashi, J.-I., Shimada, K., Nagase, T., Takaya, Y., Kato, Y., Kawagucci, S., Watsuji, T., Shibuya, T., Yamada, R., Saruhashi, T., Kyo, M. and Takai, K.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Experimental hydrothermal alteration of andesite at 325oC, 300 bars: Comparison with hydrothermal fluids in the Hatoma Knoll, southern Okinawa Trough (2016)
  • Author(s): Torimoto, J., Saitoh, M., Shibuya, T., Nozaki, T., Ueda, H. and Suzuki, K.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Miocene to Pleistocene osmium isotopic records of the Mediterranean and Atlantic sediments (2016)
  • Author(s): Kuroda, J., Jimenez-Espejo, F. J., Nozaki, T., Gennari, R., Lugli, S., Manzi, V., Roveri, M., Flecker, R., Suzuki, K., Yoshimura, T., Sierro, F. J. and Ohkouchi, N.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Marine osmium isotope record in the Upper Triassic deep-sea deposits from Japan: the Middle to Upper Norian transition (2016)
  • Author(s): Sato, H., Nozaki, T., Onoue, T., Kimura, J.-I., Chang, Q., Takaya, Y., Kato, Y. and Suzuki, K.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] REY-rich mud: A perspective on science and engineering of the new REY resource (2016)
  • Author(s): Kato, Y., Fujinaga, K., Yasukawa, K., Ohta, J., Takaya, Y., Nozaki, T., Machida, S., Nakamura, K. and Iwamori, H.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Geochemical features and distribution of the extremely REY-rich mud in the Minamitorishima EEZ (2016)
  • Author(s): Fujinaga, K., Yasukawa, K., Ohta, J., Nakamura, K., Takaya, Y., Nozaki, T., Machida, S., Iijima, K. and Kato, Y.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Mineralogical and geochemical study of hydrothermal ores collected from the Hatoma Knoll in the southern Okinawa Trough (2016)
  • Author(s): Totsuka, S., Ishibashi, J.-I., Fujiwara, T., Uchida, A., Toyoda, S. and Nozaki, T.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Remelting of Ontong Java Plateau lithosphere (2016)
  • Author(s): Hanyu T., Tejada, M., Shimizu, K., Ishikawa, A., Kimura, J.-I., Chang, Q., Senda, R., Miyazaki, T., Goto, K. and Ishizuka, O.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] PGE signature of an EM-1 mantle source, evidence from Pitcairn basalts (2016)
  • Author(s): Senda, R., Ishikawa, A., Hanyu, T., Kawabata, H., Takahashi, T. and Suzuki, K.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Re-Os constraints on the formation age of Acasta mafic rocks (2016)
  • Author(s): Koshida, K., Ishikawa, A., Suzuki, K. and Komiya, T.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] The Nulliak supracrustal rocks, Labrador, Canada: their occurrence, age, and the oldest evidence for life (2016)
  • Author(s): Komiya, T., Aoki, S., Koshida, K., Tashiro, T., Yamamoto, T., Ishikawa, A., Ishida, A., Hori, M., Igisu, M. and Sano, Y.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Re-Os isotope and highly siderophile element constraints on the origin of ancient depleted domains in the modern convecting mantle (2016)
  • Author(s): Ishikawa, A., Senda, R., Suzuki, K., Tani, K. and Ishii, T.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] Oceanic anoxic event at the Carnian/Norian boundary interval in the Black Bear Ridge section, British Columbia (2016)
  • Author(s): Onoue, T., Zonneveld, J.-P., Orchard, M. J., Yamashita, K., Sato, H. and Kusaka, S.
  • Organizer: 26th V. M. Goldschmidt conference
  • Place of Presentation: パシフィコ横浜 (神奈川県横浜市)
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] 伊平屋小海嶺野甫サイトの掘削コアを含む熱水性鉱石試料の鉱物学的特徴 (2016)
  • Author(s): 戸塚修平・石橋純一郎・島田和彦・野崎達生・池端慶
  • Organizer: 資源地質学会第66回年会学術講演会
  • Place of Presentation: 東京大学 (東京都文京区)
  • Year and Date: 2016-06-22
• [Presentation] Characteristics of hydrothermal deposits from the Aki- and Natsu-sites, Iheya North Knoll, Okinawa Trough (2016)
  • Author(s): 鳥本淳司・野崎達生・高井研・ 鈴木勝彦
  • Organizer: 資源地質学会第66回年会学術講演会
  • Place of Presentation: 東京大学 (東京都文京区)
  • Year and Date: 2016-06-22
• [Presentation] 沖縄トラフ海底熱水域における熱水性カオリン鉱物の産状と形成過程 (2016)
  • Author(s): 石橋純一郎・堤彩紀・島田和彦・三好陽子・高谷雄太郎・野崎達生・高井研・熊谷英憲
  • Organizer: 資源地質学会第66回年会学術講演会
  • Place of Presentation: 東京大学 (東京都文京区)
  • Year and Date: 2016-06-22
• [Presentation] CK16-01航海における掘削同時検層と採取コア概報 (2016)
  • Author(s): 熊谷英憲・野崎達生・石橋純一郎・斎藤実篤・山崎徹・前田玲奈・CK16-01乗船者一同
  • Organizer: 資源地質学会第66回年会学術講演会
  • Place of Presentation: 東京大学 (東京都文京区)
  • Year and Date: 2016-06-22
• [Presentation] 黒鉱鉱石組織のEBSD解析 (2016)
  • Author(s): 長瀬敏郎・山田亮一・野崎逹生・石橋純一郎・栗林貴弘
  • Organizer: 資源地質学会第66回年会学術講演会
  • Place of Presentation: 東京大学 (東京都文京区)
  • Year and Date: 2016-06-22
• [Presentation] 沖縄トラフ伊平屋北海丘熱水域における流体包有物研究と鉱物組合せ (2016)
  • Author(s): 向江信寛・米津幸太郎・Thomas Tindell・石橋純一郎・野崎達生・高井研・渡邊公一郎
  • Organizer: 資源地質学会第66回年会学術講演会
  • Place of Presentation: 東京大学 (東京都文京区)
  • Year and Date: 2016-06-22
• [Presentation] 熱水鉱床成因モニタリングシステムの開発 (2016)
  • Author(s): 横山貴大・猿橋具和・許正憲・櫻井紀旭・秋山敬太・野崎達生
  • Organizer: 石油技術協会平成28年度春季講演会
  • Place of Presentation: 秋田ビューホテル (秋田県秋田市)
  • Year and Date: 2016-06-08
• [Presentation] Preliminary results of the CK16-01 Cruise: Scientific drilling operations of coring, in-situ thermometer and geothermal logging tool (2016)
  • Author(s): Nozaki, T., Ishibashi, J.-I., Kumagai, H., Maeda, L. and CK16-01 Cruise members
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] Preliminary results of the CK16-01 Cruise: Scientific drilling in Okinawa Trough using Logging While Drilling tools and installation of long-term monitoring apparatus (2016)
  • Author(s): Kumagai, H., Nozaki, T., Ishibashi, J.-I., Maeda, L. and CK16-01 Cruise Member
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] Deployment of logging while drilling at hydrothermal fields in Okinawa Trough: Preliminary results of CK16-01 Cruise (2016)
  • Author(s): Saito, S., Hamada, Y., Tsuji, T., Shiraishi, K., Hsiung, K. H., Eng, C., Yoshimoto, K., Kido, Y., Sanada, Y., Kumagai, H., Nozaki, T., Ishibashi, J.-I., Maeda, L. and CK16-01 Shipboard Party
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] Occurrence and formation process of kaolin minerals in seafloor hydrothermal fields in the Okinawa Trough (2016)
  • Author(s): Tsutsumi, S., Ishibashi, J.-I., Nozaki, T. and Takaya, Y.
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] Distribution of extremely REY-rich mud in the southern part of the Minamitorishima EEZ (2016)
  • Author(s): Fujinaga, K., Yasukawa, K., Machida, S., Nozaki, T., Takaya, Y., Ohta, J., Oya, K., Niikuma, D., Nishio, Y., Masaki, Y., Usui, Y., Haraguchi, S., Amakawa, H., Iijima, K., Nakamura, K., Suzuki, K., Kato, Y. and MR15-E01 Leg. 2 cruise members
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] The progress of research on REY-rich mud within the Minamitorishima EEZ (2016)
  • Author(s): Kato, Y., Fujinaga, K., Nakamura, K., Yasukawa, K., Ohta, J., Takaya, Y., Iijima, K., Machida, S., Nozaki, T., Kimura, J.-I., Suzuki, K. and Iwamori, H.
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] Spatio-temporal scale of seafloor hydrothermal systems: Constraints from borehole and seafloor observations in the Mid-Okinawa Trough (2016)
  • Author(s): Kinoshita, M., Masaki, Y., Hamada, Y., Tanikawa, W., Kumagai, H. and Nozaki, T.
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] Marine osmium isotope record across the Middle-Upper Norian transition in the Upper Triassic deep-sea deposits from Mino belt, Japan (2016)
  • Author(s): Sato, H., Nozaki, T., Onoue, T., Kimura, J.-I., Chang, Q., Takaya, Y., Kato, Y. and Suzuki, K.
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
  • Invited
• [Presentation] Mineralogical and Geochemical Study of Hydrothermal Deposits from the Noho Site in the mid-Okinawa Trough (2016)
  • Author(s): Totsuka, S., Ishibashi, J.-I., Nozaki, T. and Simada, K.
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] 南アフリカ・バーバートン緑色岩帯の珪化変質地域にみられる玄武岩、コマチアイトとチャートの産状および地球化学的研究 (2016)
  • Author(s): 梅田早織・石川晃・小宮剛
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] 陽・陰イオン交換樹脂とMC-ICP-MSに基づくMo同位体分析 (2016)
  • Author(s): 後藤孝介・下田玄・青木翔吾・石川晃
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] エストニアの中部オルドビス系：Velise-F97コアの岩相および化学層序 (2016)
  • Author(s): 島塚桃子・磯崎行雄・石川晃・Bauert Heikki・Poldvere Anne・鈴木淳・石村豊穂
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] アカスタ片麻岩体における最古岩石の分布 (2016)
  • Author(s): 越田渓子・石川晃・山本伸次・青木翔吾・上原啓幹・小宮剛
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] Os同位体比と白金族元素から見たEM-1成分の由来 (2016)
  • Author(s): 仙田量子・石川晃・羽生毅・川畑博・高橋俊郎・鈴木勝彦
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] オントンジャワ海台玄武岩の強親鉄性元素多様性 (2016)
  • Author(s): 石川晃・宇都宮敦・越田渓子・Maria Luisa Tejada・小宮剛・鈴木勝彦・佐野貴司
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
• [Presentation] A seamount on top of Ontong Java Plateau was created by remelting of plateau lithosphere by plate flexure (2016)
  • Author(s): 羽生毅・Maria Luisa Tejada・清水健二・石塚治・木村純一・常青・仙田量子・宮崎隆・後藤孝介・石川晃
  • Organizer: 日本地球惑星科学連合連合大会2016年大会
  • Place of Presentation: 幕張メッセ (千葉県千葉市)
  • Year and Date: 2016-05-20
  • Invited
• [Remarks] 東京大学大学院工学系研究科 エネルギー・資源フロンティアセンター/システム創成学専攻
  • URL: http://egeo1.geosys.t.u-tokyo.ac.jp/kato/nozaki.html
• [Remarks] JAMSTEC | 海洋研究開発機構
  • URL: http://www.jamstec.go.jp/j/
• [Remarks] 海底資源研究開発センター
  • URL: http://www.jamstec.go.jp/shigen/j/