Physical properties of uppermost mantle structure and the Mohorovicic seismic discontinuity

2019 Fiscal Year Annual Research Report

• Project/Area Number: 16H06347
• Research Institution: Nagoya University
• Principal Investigator: 道林 克禎 名古屋大学, 環境学研究科, 教授 (20270978)
• Co-Investigator(Kenkyū-buntansha): 小原 泰彦 国立研究開発法人海洋研究開発機構, 深海・地殻内生物圏研究分野, 招聘主任研究員 (10470121) ; 平内 健一 静岡大学, 理学部, 講師 (10633290) ; 田村 芳彦 国立研究開発法人海洋研究開発機構, 海洋掘削科学研究開発センター, グループリーダー (40293336) ; 岡本 敦 東北大学, 環境科学研究科, 准教授 (40422092) ; 高澤 栄一 新潟大学, 自然科学系, 教授 (80222082)
• Project Period (FY): 2016-05-31 – 2021-03-31
• Keywords: マントル / 海洋地殻 / マントル－地殻境界 / モホ面 / オマーンオフィオライト / 掘削科学

Outline of Annual Research Achievements

本研究課題は最上部マントルの構造と地殻―マントル境界であるモホロビチッチ不連続面（モホ面）の形成過程を解明するために，小笠原・マリアナ海溝の海溝かんらん岩とアラビア半島オマーンオフィオライトかんらん岩について岩石構造組織の発達過程，弾性・電気伝導度・透水率等の物性測定，岩石水反応実験などの多角的アプローチから研究する．海と陸のかんらん岩の構造岩石学的特徴を比較検討して地球深部最上部マントルの発達過程とそれを支配する要因を考察するため，本研究課題では，海班，陸班，分析班の３班体制で研究を進めている．
海班は４月に四国海盆の拡大軸周辺の海底調査を実施した．研究支援船「よこすか」によるYK19-04S航海として実施された潜水調査船しんかい６５００による６回の潜航調査によって四国海盆の拡大軸周辺の岩石採取を実施した．この２回の研究航海によってマドメガムリオンと名付けられた海底地形の概要が昨年の調査を合わせてさらに明らかとなった他，マドメガムリオンから断層岩の採取に成功した．これらの結果について，速報として１２月に開催されたアメリカ地球物理学連合秋季大会において発表した．
陸班と分析班は国際オマーン掘削プロジェクトで得たオフィオライト岩石試料の分析をそれぞれの研究室で進めた．これまでに地殻－マントル境界物質としてマフィック岩よりも超マフィック岩の方が水の影響を受けやすい性質をもつことが明らかになり物性研究から岩石－水反応研究など，幅広いアプローチでデータが集まりつつある．これらの結果について，速報として９月に開催された日本地質学会とアメリカ地球物理学連合秋季大会において発表した他，2020年１月にオマーン王国で開催された国際オフィオライト学会において成果報告を行った．現在，Journal of Geophysical Researchの特集号に向けて論文準備中である．

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

本研究課題の柱として陸班と分析班が中心となって推進してきた国際オマーン掘削プロジェクトは，第１段階の掘削と掘削試料の一次記載が昨年度で完了し，今年度から第２段階として詳細な分析をすすめている．これまでに蛇紋岩化したカンラン岩の物性や鉱物反応，さらに含水機構などについて新しい知見が得られつつある．陸班と分析班の研究進捗状況は当初計画以上に進んでいる．実際，2020年1月にオマーン王国で開催された国際オフィオライト学会において本研究チームから多くの発表を行い，国際的にも日本チームの活躍をアピールできた．特に研究代表者の道林と分担研究者の高澤は国際オマーン掘削プロジェクトへの貢献度を高く評価され，基調講演したばかりでなく開催地であったサルタンカブース大学から特別講演賞が授与されたことも明記させていただく．海班については海洋研究開発機構の研究支援船による海底調査が当初計画通りに実施できていない状況であるが，数少ないしんかい６５００による潜行調査で得られた四国海盆マドメガムリオンの岩石試料に多様な断層岩が確認されており，今後の研究成果が期待できる見通しである．以上の進捗状況から，海班・陸班・分析班それぞれの研究成果は確実であり，総合的にみておおむね順調に進展していると評価したい．

Strategy for Future Research Activity

研究全体としてはほぼ当初計画通りに実施できている．本研究課題はあと残すところ1年であり，この４年間の集大成として当初研究目的である最上部マントルの物理化学的性質とモホ面を横切る岩石物性について研究の成果をまとめていく．さらに本研究課題の成果を基にした新たな研究テーマを構築することも並行していく．海班は，海洋研究開発機構の研究支援船を計画通りに利用することが困難になっている現況をふまえてすでに研究計画の大幅な見直しを行っている．状況が許されれば海底調査を実施するが調査不可能な場合には研究室に確保した海底岩石試料の分析を進める．陸班と分析班はすでに国際オマーン掘削プロジェクトの第２段階としてそれぞれの研究室における詳細な岩石試料の分析をすすめているので，この研究活動を維持しながら国際学術誌に企画されている特集号に投稿して成果報告に注力する．そのため可能であれば夏合宿等で集合，またはネット会議を通じて互いに議論する機会を増やしていく予定である．本年度の後半で状況が許せば研究組織メンバー一同でまとめの会を開催することも予定している．

Research Products

• [Int'l Joint Research] コロンビア大学/アイオア大学/ハワイ大学(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: コロンビア大学/アイオア大学/ハワイ大学
  • # of Other Institutions: 1
• [Int'l Joint Research] サウサンプトン大学(英国)
  • Country Name: UNITED KINGDOM
  • Counterpart Institution: サウサンプトン大学
• [Int'l Joint Research] モンペリエ大学(フランス)
  • Country Name: FRANCE
  • Counterpart Institution: モンペリエ大学
• [Int'l Joint Research] ケルン大学(ドイツ)
  • Country Name: GERMANY
  • Counterpart Institution: ケルン大学
• [Journal Article] Contrasting dilatant behaviors of mafic and ultramafic rocks based on triaxial deformation experiments (2019)
  • Author(s): Akamatsu Y., Hatakeyama K. and Katayama
  • Journal Title: Journal of Mineralogical and Petrological Science Volume: 114 Pages: 79-86
  • DOI: https://doi.org/10.2465/jmps.181120
  • Peer Reviewed / Open Access
• [Journal Article] Silica nanoparticles produced by explosive flash vaporization during earthquakes (2019)
  • Author(s): Amagai, T., Okamoto, A., Niibe, T., Hirano, N., Motomiya, K., Tsuchiya, N.
  • Journal Title: Scientific Reports Volume: 9 Pages: 9738
  • DOI: https://doi.org/10.1038/s41598-019-46320-7
  • Peer Reviewed / Open Access
• [Journal Article] Formation of secondary olivine after orthopyroxene during hydration of mantle wedge: Evidence from the Khantaishir Ophiolite, western Mongolia (2019)
  • Author(s): Dandar, O., Okamoto, A., Uno M., Oyanagi, R., Nagaya, T., Brenjargal, U., Miyamoto, T., Tsuchiya, N.
  • Journal Title: Contributions to Mineralogy and Petrology Volume: 174 Pages: 86
  • DOI: https://doi.org/10.1007/s00410-019-1623-1
  • Peer Reviewed
• [Journal Article] Melt-fluid infiltration along detachment shear zones in oceanic complexes: insights from amphiboles in gabbro mylonites from the Godzilla Megamullion, Parece Vela Basin, the Philippine Sea (2019)
  • Author(s): Harigane, Y., Okamoto, A., Morishita, T., Snow, J. E., Tamura, A., Yamashita, H., Michibayashi, K., Ohara, Y., Arai, S.
  • Journal Title: Lithos Volume: 344-345 Pages: 217-231
  • DOI: https://doi.org/10.1007/s00410-019-1623-1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Feedback of mantle metasomatism on olivine micro?fabric and seismic properties of the deep lithosphere (2019)
  • Author(s): Kourim, F., Beinlich, A., Wang, K.-L., Michibayashi, K., O'Reilly, S. Y., and Pearson, N. J.
  • Journal Title: Lithos Volume: 328-329 Pages: 43-57
  • DOI: https://doi.org/10.1016/j.lithos.2019.01.016
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Post-magmatic tectonic evolution of the outer Izu-Bonin forearc revealed by sediment basin structure and vein microstructure analysis: implicataions for a 15 Ma hiatus between Pacific Plate subduction initiation and forearc extension (2019)
  • Author(s): Kurz, W., Micheuz, P., Christeson, G. L., Reagan, M., Shervais, J. W., Kutterolf, S., Robertzon, A., Krenn, K., Michibayashi, K., Quandt, D.
  • Journal Title: Geochemistry, Geophysics, Geosystems, Volume: 20 Pages: 5867-5895
  • DOI: https://doi.org/10.1029/2019GC008329
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Recovering the past history of natural recording media by Bayesian inversion (2019)
  • Author(s): Kuwatani, T., Nagao, H., Ito, S-I, Okamoto, A., Yoshida, K., Okudaira, T.
  • Journal Title: Physical Review Volume: E98 Pages: 043311
  • DOI: https://doi.org/10.1103/PhysRevE.98.043311
  • Peer Reviewed
• [Journal Article] What line beneath: The formation and evolution of oceanic lithosphere (2019)
  • Author(s): Michibayashi, K., M. Tominaga, B. Ildefonse, and D. A. H. Teagle
  • Journal Title: Oceanography Volume: 32 Pages: 138?149
  • DOI: doi.org/10.5670/oceanog.2019.136.
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Workshop report on hard-rock drilling into mid-Cretaceous Pacific oceanic crust on the Hawaiian North Arch (2019)
  • Author(s): Morishita, T., Umino, S., Kimura, J., Yamashita, M., Ono, S., Michibayashi, K., Tominaga, M., Klein, F., Garcia, M. O.
  • Journal Title: Scientific Drilling Volume: 26 Pages: 47-58
  • DOI: https://doi.org/10.5194/sd-26-47-2019
  • Peer Reviewed
• [Journal Article] Geological and engineering features of developing ultra-high-temperature geothermal systems in the world (2019)
  • Author(s): Okamoto, K., Asanuma, H., Ishibashia, T., Yamaya, Y., Saishua, H., Yanagisawa, N., Mogi, T., Tsuchiya, N., Okamoto, A., Naganawa, S., Ogawa, Y., Ishitsuka, K., Fujimitsu, Y., Kitamura, K., Kajiwara, T., Horimoto, S., Shimadai, K.
  • Journal Title: Geothermics Volume: 82 Pages: 267-281
  • DOI: https://doi.org/10.1016/j.geothermics.2019.07.002
  • Peer Reviewed
• [Journal Article] An inhomogeneous across-slab conduit controlled by intraslab stress heterogeneity in the Nankai subduction zone. (2019)
  • Author(s): Otsubo, M., Miyakawa A., Katayama, I., and Okazaki, K.
  • Journal Title: Scientific Reports Volume: 9 Pages: 994
  • DOI: doi.org/10.1038/s41598-018-38142-w.
  • Peer Reviewed
• [Journal Article] Two types of plagiogranite from Mesozoic Asin Ophiolite (Central Iran): A mark of tectonic setting change from Jurassic to Cretaceous (2019)
  • Author(s): Torabi, G., Morishita, T., Arai, S
  • Journal Title: Geotectonics Volume: 53 Pages: 110-124
  • DOI: DOI:10.1134/S0016852119010084
  • Peer Reviewed
• [Journal Article] Acceleration of hydrogen production during water-olivine-CO2 reactions via high-temperature-facilitated Fe(II) release (2019)
  • Author(s): Wang J, Watanabe N., Okamoto, A., Nakamura, K., Komai, T.
  • Journal Title: International Journal of Hydrogen Energy Volume: 44 Pages: 11514-11524
  • DOI: https://doi.org/10.1016/j.ijhydene.2019.03.119
  • Peer Reviewed
• [Journal Article] Enhanced hydrogen production with carbon storage by olivine alteration in CO2-rich hydrothermal environments (2019)
  • Author(s): Wang J, Watanabe N., Okamoto, A., Nakamura, K., Komai, T.
  • Journal Title: Journal of CO2 Utilization Volume: 30 Pages: 205-213
  • DOI: https://doi.org/10.1016/j.jcou.2019.02.008
  • Peer Reviewed
• [Journal Article] Pyroxene control of H2 production and carbon storage during water-peridotite-CO2 hydrothermal reactions (2019)
  • Author(s): Wang J., Watanabe N., Okamoto, A., Nakamura, K., Komai, T.
  • Journal Title: International Journal of Hydrogen Energy Volume: 44 Pages: 26835
  • DOI: doi.org/10.1016/j.ijhydene.2019.08.161
  • Peer Reviewed
• [Journal Article] Elastic wave velocity and electrical conductivity in a brine-saturated rock and microstructure of pores (2019)
  • Author(s): Watanabe, T., Makimura, M., Kaiwa, Y., Desbois, G., Yoshida, K., Michibayashi, K.
  • Journal Title: Earth, Planets and Space Volume: 71 Pages: 129
  • DOI: https://doi.org/10.1186/s40623-019-1112-9
  • Peer Reviewed
• [Journal Article] 深海掘削計画とマントルの直接観察 (2019)
  • Author(s): 道林克禎
  • Journal Title: 圧力技術 Volume: 57 Pages: 148-154
  • DOI: https://doi.org/10.11181/hpi.57.148
• [Presentation] Petrological and geochemical diversity of mantle section between the northern and southern parts of the Oman ophiolite (2020)
  • Author(s): Takazawa, E., Ishii, K., Someya, K, Nomoto, Y., Suetake, A., Murakami, R., Kanke, N., Tamura, Y.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research / Invited
• [Presentation] Development of olivine fabrics in the uppermost oceanic lithosphere within the Oman ophiolite. International Conference on Ophiolites and Oceanic Lithosphere (2020)
  • Author(s): Michibayashi, K.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research / Invited
• [Presentation] Relationship between the physical properties and hydration of the oceanic lower crust/Moho TZ: results from onboard measurements of ICDP Oman Drilling Project (2020)
  • Author(s): Abe, N., Okazaki, K., Katayama, I., Hatakeyama, K., Ildefonse, B., Ulven, O., Hong, G., Zhu, W., Cordonnier, B., Akamatsu, Y., Michibayashi, K., Takazawa, E., Harris, M., Teagle, D., Kelemen, P., Godard, M., Matter, J., Coggon, J., the Oman Drilling Project Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Initial studies of the petrophysics in the sheeted dikes and upper gabbro from Oman Drilling Project Hole GT3A (2020)
  • Author(s): Abe, N., Hatakeyama, K., Okazaki, K., Leong, J. A., Ildefonse, B., Tateishi, Y., Marris, M., Michibayashi, K., de Obeso, J. C., Teagle, D., Takazawa, E., Kelemen, P., Coggon, J. A., Matter, J. M., Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Overview of Hole GT3A: The sheeted dike/gabbro transition (2020)
  • Author(s): Abe, N., Harris, M., Michibayashi, K., de Obeso, J. C., Kelemen, P. B., Takazawa, E., Teagle, D. A. H., Coggon, J. A., Matter, J. M., the Oman Drilling Project Phase I Sciene Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Influence of hydration on brittle behavior of olivine gabbro collected from the Oman Ophiolite (2020)
  • Author(s): Akamatsu, Y., Katayama, I.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Water content in nominally anhydrous mineral of crust/mantle boundary recovered by International Oman Drilling Project: Analytical strategy and methods (2020)
  • Author(s): Asyraf, M., Morishita, T., Shimizu, K., Ushikubo, T., Itano, K., Guotana, J. M., Oman Drilling Project Phase II Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Early faulting and cataclasis in the Samail peridotites (2020)
  • Author(s): Aupart, C., Dunkel, K., Morales, L., Godard, M., Jamtveit, B.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Multi-stage melt-rock interactions as revealed by microstructures in Oman harzburgites (OmanDP, Hole CM1A - CM2B, Samil Massif) (2020)
  • Author(s): Basch, V., Crispini, L., Raveni, M., Rampone, E., Oman Drilling Project Phase 2 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Accretion and origin of lower crustal gabbros at Oman ophiolite: Insight from Oman Drilling Project Phase 1 & 2 (2020)
  • Author(s): Chatterjee, S., Takazawa, E., Michibayashi, K., Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Overview of the Oman Drilling Project. (2020)
  • Author(s): Coggon, J., Matter, J., Kelemen, B., Teagle, D., the Oman Drilling Project Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Structural observations from ODP boreholes. (2020)
  • Author(s): Cordonnier, B., Ulven, O. I., Aupart, C., Jamtveit, B., the OmanDP Sciene Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Fracturing and hydrothermal circulation in the lower oceanic crust of Samil ophiolite (Oman): a structural overview from GT1A and GT2A OmanDP cores (2020)
  • Author(s): Crispini, L., Harris, M., Deans, J., Cheadle, M., Mariani, E., Teagle, D., OmanDP Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Fault zones and fracturing in the harzburgite of Wadi Tayin Massif (OmanDP, Hole BA): pathways for infiltration of hydrothermal fluids into the upper mantle (2020)
  • Author(s): Crispini, L., Mariani, E., Teagle, D., Jamtveit, B., Aupart, C., Aslin, J., Menzel, M., OmanDP Phase 2 Sciene Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Orientation and distribution of magmatic fabrics in the lower oceanic crust: Implications for crustal accretion, Oman Drilling Project Holes GT1 and GT2 (2020)
  • Author(s): Deans, J. R., Guillot, J., Cheadle, M. J., ODP Phase 1 Sciene Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Peridotite carbonation in the shallow mantle wedge of a fossil subduction zone: d13C, 87Sr/86Sr and d26Mg profiles of OmanDP Hole BT1B (2020)
  • Author(s): de Obeso, J. C., Kelemen, P., Ramos, D. S., Higgins, J., Cai, Y., Oman Drilling Project Sciene Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Iron mineralogy and redox state in a serpentinized harzburgite core from the Oman ophiolite: Implications for low-T H2 production (2020)
  • Author(s): Ellison, E. T., Templeton, A. S., Zeigler, S. K. D., Mayhew, L. E., the Oman Drilling Project Phase II Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] ICDP Oman Drilling Project: Varitextured gabbros from the dike-gabbro transition within drill core GT3 (2020)
  • Author(s): Engelhardt, A., Koepke, J., Garbe-Schoenberg, D., Jesus, A., the Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] FE-SEM study of opaque mineral assemblages from the Oman Drilling Project Hole BA4A (2020)
  • Author(s): Eslami, A., Evans, K., Malvoisin, B., Kelemen, P., OmanDP Science Party Phase II
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Geochemical and mineralogical profiles across the listvenite-metamorphic transition in the Basal mega thrust of the Oman Ophiolite: Results from Drilling at OmanDP Hole BT1B (2020)
  • Author(s): Godard, M., Lafay, R., Carter, E., Kourim, F., Bennett, E., Decrausaz, T., Kelemen, P., Michibayashi, K., Harris, M., the Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Micro-imaging spectroscopy of the Oman Drilling Project cores. (2020)
  • Author(s): Greenberger, R. N., Ehlmann, B. L., Kelemen, P. B., Harris, M., Manning, C. E., Teagle, D. A. H., Amador, E. S., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Towards a complete profile of hydrothermal alteration in the lower oceanic crust and uppermost mantle (2020)
  • Author(s): Harris, M., Teagle, D., Fruh-Green, G. L., Grabowska, M., Greenberger, R., Ehlmann, the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Hydrothermal alteration in the lower oceanic crust: Insights from OmanDP Holes GT1A and GT2A (2020)
  • Author(s): Harris, M., Teagle, D., Grabowska, M., Deans, J., Greenberger, R., the Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] The record of hydrothermal alteration in the lower oceanic crust sampled by OmanDP Holes GT1A and GT2A. (2020)
  • Author(s): Harris, M., Teagle, D., Zihlmann, B., Mock, D., Akitou, T., Kondo, K., Deans, J., Crispini, L., Takazawa, E., Coggon, J., Kelemen, P., OmanDP Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Seismic velocity profile across the crust-mantle boundary determined from high-pressure experiments of core samples collected from the Oman Drilling Project (2020)
  • Author(s): Hatakeyama, K., Katayama, I., Abe, N., Okazaki, K., the Oman Drilling Project Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Correlation between rock magnetic properties and mineral microstructure of Oman Drilling Project Cores BA1B, BA3A, BA4A and its implications for iron oxide alteration within oceanic lithosphere (2020)
  • Author(s): Hong, G., Till, J. L., Greve, A., Lee, S.-M., the Oman Drilling Project Phase 2 Science Pary,
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Textural analyses of peridotites drilled by Oman Drilling Project for reconstruction of mantle flow (2020)
  • Author(s): Kakihata, Y., Michibayashi, K., Crispini, L., the Oman Drilling Project Phase 2 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Crack density and aspect ratio of serpentinized dunites and harzburgites in the Hole BA1B, 3A, and 4A inferred from onboard ultrasonic velocity data (2020)
  • Author(s): Katayama, I., Abe, N., Okazaki, K., Hatakeyama, K., Akamatsu, Y., Michibayashi, K., Godard, M., Kelemen, P., the Oman Drilling Project Phase 2 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Low-salinity aqueous fluid inclusions in dolomite veins of a listvenite of Oman Drilling Project Phase 1 (2020)
  • Author(s): Kawamoto, T., Sato, H., Takahashi, T., Guotana, J. M., Morishita, T., Kelemen, P. E., Coggon, J. A., Harris, M., Matter, J. M., Michibayashi, K., Takazawa, E., Teagle, D. A. H., the Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Alteration of peridotite in the Samail Ophiolite: Results from the Oman Drilling Project (2020)
  • Author(s): Kelemen, P. E., , Michibayashi, K. et al., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research / Invited
• [Presentation] Ductile deformation of listvenite, OmanDP Site BT1, Samail Ophiolite (2020)
  • Author(s): Kelemen, P. E., Bach, W., Beinlich, A., de Obeso, J. C., Hirth, G., Manning, C., Michibayashi, K., Okazaki, K., Urai, Zhu, W., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research / Invited
• [Presentation] Geology of the multi-borehole observatory: Holes BA1A, B, C, BA2A, BA3A and BA4A in altered mantle peridotite (2020)
  • Author(s): Kelemen, P. E., Choe, S., Coggon, J., Godard, M., Michibayashi, K., Matter, J., Teagle, D., Templeton, A.,the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research / Invited
• [Presentation] ICDP_Exp. 807: First texture and microstructure characterization of Oman crust-mantle transition: Holes CM1A and CM2B (2020)
  • Author(s): Kourim, F., Michibayashi, K., Wang, K., Koepke, J., Kaczmarek, M., Kelemen, P., Kakihata, Y., Godard, M., the Oman Drilling Project Phase 2 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] First geochemical and mineralogical results, of Oman crust-mantle transition: Holes CM1A and CM2B characterization aboard DV-Chikyu, Oman Drilling Projec, Phase 2 Leg3 (2020)
  • Author(s): Kourim, F., Rospab?, M., Giampouras, M., Chatterjee, S., Ishii, K., Tamura, A., Dygert, N., Oyanagi, R., Wang, K., Godard, M., Benoit, M., Teagle, D. A., Takazawa, E., Kelemen, P., Coggon, J., the Oman Drilling Project Phase 2 Sciene Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Listvenization processes in the mantle atop the Samil ophiolite metamorphic sole: Mineralogical and thermodynamic constraints (2020)
  • Author(s): Lafay, R., Godard, M., Menzel, M., Beinlich, A., Kourim, F., Decrausaz, T., the Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Groundwater flow characterization of the Drilling Project Batin test site (Sultanate of Oman) using cross-borehole and multiple-level hydraulic tests (2020)
  • Author(s): Lods, G., Roubinet, D., Matter, J., Leprovost, R., Gouze, P., the Oman Drilling Project Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Transformation of serpentinite to listvenite in the Samail ophiolite as recorded in the Oman Drilling Project Hole BT1B (2020)
  • Author(s): Manning, C. E., Kelemen, P. B., Liu, S., de Obeso, J. C., Greenberger, R. N., Urai, J. L., Jesus, A. P. M., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research / Invited
• [Presentation] Anhydrite microstructures as testimony of a paleo hydrothermal vent along an active normal fault in the oceanic crust (2020)
  • Author(s): Mariani, E., Crispini, L., Teagle, D., Oman Drilling Project Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Groundwater flow and fluid-rock interactions in mantle peridotites of the Samail Ophiolite: Results from downhole hydrogephysical logging and borehole testing from the Oman Drilling Project (2020)
  • Author(s): Matter, J. M., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Microstructural evolution during peridotite hydration and carbonation in an oceanic subduction zone: a case study of listvenite in the Wadi Tayin Massif (Oman Ophiolite) (2020)
  • Author(s): Menzel, M. D., Urai, J. K., Kettermann, M., Manning, C. E., Kelemen, P. B., Jesus, A. P. M., the Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] X-ray CT core imaging of the Oman Drilling Project on D/V CHIKYU (2020)
  • Author(s): Michibayashi, K., Choe, S., Coggon, J., Godard, M., Harris, M., Kelemen, P., Matter, J., de Obeso, J. C., Okazaki, K., Takazawa, E., Teagle, E., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Drillcore of GT1 of the ICDP Oman Drilling Project: Implications from the layered gabbros on the accretion of lower oceanic crust (2020)
  • Author(s): Mock, D., Ildefonse, B., Garbe-Sch?nberg, D., M?ller, S., Neave, D. A., Koepke, J., the Oman Drillling Peoject Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Water content in nominally anhydrous minerals of the crust/mantle boudary recovered by International Oman Drilling Project: Scientific strategy and preliminary results (2020)
  • Author(s): Morishita, T., Asyraf, M., Shimizu, K., Ushikubo, T., Itano, K., Guotana, J. M., Senda, R., Yoshikawa, M., Oman Drilling Project Phase II Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Drilling into llistvenite to the underlying metamorphic sole of the Semail Ophiolite: Hole BT1B, Oman Drilling Project (2020)
  • Author(s): Morishita, T., Kelemen, P. B., Coggon, J. A., Harris, M., Matter, J. M., Michibayashi, K., Takazawa, E., Teagle, D. A. H., the Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Prosity of mafic and ultramafic core samples from the Oman Drilling Projects measured by the penetration and implication methods (2020)
  • Author(s): Nagase, K., Katayama, I., Yokoyama, T., Hatakeya, K., Akamatsu, Y., Okazaki, K., Abe, N., Michibayashi, K.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Aqueous geochemical and microbial variation across discrete depth intervals in a peridotite aquifer assessed using a packer system in the Samail ophiolite, Oman (2020)
  • Author(s): Nothaft, D. B., Templeton, A. S., Boyd, E. S., Matter, J. M., Stute, M., Vankeuren, A. N. P., Ellison, E. T., Rempfert, K. R., Oman Drilling Project Sciene Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Super-resolution of X-ray CT images of rock core samples by sparse representation: methodology and applications to serpentinized peridotite from CM1A (2020)
  • Author(s): Okamoto, A., Omori, T., Kimura, M., Michibayashi, K., Oman Drilling Project Phase 2 Science Party, 2020
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Mineral assemblages of listvenite from ICDP Oman Drilling Project Hole BT1B inferred from X-say CT core images (2020)
  • Author(s): Okazaki, K., Michibayashi, K., Hatakeyama, K., Abe, N., Johnson, K. T. M., Kelemen, P. B., Oman Drilling Project Phase I Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] On the origin of layered mafic-ultramafic sequences: an example from the Palawan Ophiolite, Philippines (2020)
  • Author(s): Payot, B., Theophilus, G., Valera, V., Tamura, A., Morishita, T., Arai, S.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Structure and alteration of the oceanic crust and mantle from downhole logging through the Semail Ophiolite, Oman (2020)
  • Author(s): Pezard, P. A., Matter, J., C?l?rier, B., Lods, G., Godard, M., Goldberg, D., Gu?rin, G., Henry, G., Brun, L., Paris, J., Benchikh, A., Yamada, Y., Kyaw, M., Al Shukaili, M., Al-Amri, S., Al Qassabi, A., Al Shukaili, A., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] An oceanic core complex in the Shikoku backarc basin: structure and composition of the lower crust of the Mado Megamullion (2020)
  • Author(s): Sanfilippo, S. C., Ohara, Y., Snow, J., Harigane, Y., Yamashita, H.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Geochemistry of the Samil opholite mantle section drilled at Oman Drilling Project Phase 2, Holes BA1B, BA3A and BA4A ~ preliminary results on board (2020)
  • Author(s): Senda, R., Carter, E., Zaloumis, J., Zhang, C., Sousa, A., Klaessens, D., Godard, M., Kelemen, P., Michibayashi, K., Teagle, D., Takazawa, E., Coggon, J., Choe, S.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] The PGE and Os isotope variations in the mantel transition zone from the Samail Ophiolite from the cores of the Oman Drilling Project (2020)
  • Author(s): Senda, R., Suzuki, K., Morishita, T., Takazawa, E., the Oman Drilling Project Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Reaction-driven cracking in serpentinizing peridotite (2020)
  • Author(s): Sohn, R. A., Matter, J., Kelemen, P., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Mineralogy of Oman listvenite and related serpentinite from the Hole BT1B of the Oman Drilling Project. (2020)
  • Author(s): Takahashi, T., Morishita, T., Harigane, Y., Kawamoto, T., Oman Drilling Project Phase I Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Drilling of crust-mantle boundary at CM1 and 2 sites of Wadi Tayin massif of Oman ophiolite: the ICDP Oman Drilling Project (2020)
  • Author(s): Takazawa, E., Teagle, D., Michibayashi, K., Tamura, Y., Coggon, J., Matter, J., Kelemen, P., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Overview of Hole GT2A, ICDP Oman Drilling Project: Drilling middle gabbro in Wadi Tayin massif, Oman ophiolite (2020)
  • Author(s): Takazawa, E., Koepke, J., Kelemen, P., Teagles, D., Coggon, J., Harris, M., Michibayashi, K., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Lower crustal section of the Oman ophiolite drilled in Hole GT1A, ICDP Oman Drilling Project (2020)
  • Author(s): Umino, S., Kelemen, P., Matter, J. M., Coggon, J. A., Takazawa, E., Michibayashi, K., Teagle, D. A., the Oman Drilling Project Phase 1 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Understanding of the style of extension and the architecture of oceanic crust ? Drilling through the upper oceanic crust off-Hawaii (2020)
  • Author(s): Umino, S., Morishita, T., Kimura, J., Yamashita, M., Garcia, M., Klein, F., Seama, N., Ono, S., Abe, N., Michibayashi, K., Tominaga, M.
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] A new view on the melt inclusions in Oman podiform chromitite: High resolution X-ray computed tomography and scanning electron microscopy studies (2020)
  • Author(s): Yao, Y., Takazawa, E., Sayantani, C., Richard, A., Morlot, C., Cr?on, L., Al-Busaidi, S., Michibayashi, K., Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Formation of fracture network and permeability enhancement during olivine hydration within oceanic lower crust (2020)
  • Author(s): Yoshida, K., Okamoto, A., Oyanagi, R., Shimizu, H., Tsuchiya, N., Oman Drilling Project Phase 2 Science Party
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Mineral carbonation in the Oman Ophiolite; observations from hole BT1 of the Oman Drill Project (2020)
  • Author(s): Zeko, D., Dipple, G. M., the Oman Drilling Project Science Team
  • Organizer: International Conference on Ophiolites and Oceanic Lithosphere
  • Int'l Joint Research
• [Presentation] Towards, a complete profile of hydrothermal alteration in the lower oceanic crust and uppermost mantle; Insights from the Oman Drilling Project and ChikyuOman 2017 and 2018 (2019)
  • Author(s): Teagle, D. A. H., Harris, M., Fr?h-Green, G., Takazawa, E., Michibayashi, K., Kelemen, P. B., Oman Drilling Project Team
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Peridotite alteration in OmanDP cores (2019)
  • Author(s): Kelemen, P. B., de Obeso, J. C., Manning, C., Godard, M., Bach, W., Cai, M. Y., Choe, S., Coggon, J., Ellison, E., Eslami, A., Evans, K., Harris, M., Kahl, W.-A., Matter, J., Michibayashi, K., Okazaki, K., P?zard, P., Teagle, D. A. H., Templeton, A., OmanDP Oman Drilling Project Science Team
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Hydration and development of fracture network within oceanic lower crust: an evidence from CM1A of Oman Drilling (2019)
  • Author(s): Okamoto, A., Yoshida, K., Oyanagi, R., Oman Drilling Project Phase 2 Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Physical Properties of the MohoTZ: Implications from recent drilling projects (2019)
  • Author(s): Abe, N., Okazaki, K., Katayama, I., Hatakeyama, K., Akamatsu, Y., Michibayashi, K., Takazawa, E., Kelemen, P. B., Teagle, D. A. H., Matter, J. M., Coggon, J. A., the Oman Drilling Project Science Party
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Overview of the physical property measurements, ChikyuOman 2017 and 2018: Crust and Mantle sections from ICDP Oman Drilling Project Phase I and II (2019)
  • Author(s): Abe, N., Okazaki, K., Katayama, I., Hatakeyama, K., Akamatsu, Y., Ildefonse, B., Ulven, O. L., Hong, G., Zhu, W., Cordonnier, B., Michibayashi, K., Takazawa, E., Harris, M., Teagle, D., Kelemen, P., Goddard, M., Matter, J., Coggon, J., The Oman Drilling Project Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Physical properties of the Moho TZ: Implications from ICDP Oman Drilling Project Phase I&II on-board measurements (2019)
  • Author(s): Abe, N., Okazaki, K., Katayama, I., Hatakeyama, K., Akamatsu, Y., Ildefonse, B., Ole, U. I., Hong, G., Zhu, W., Cordonnier, B., Michibayashi, K., Takazawa, E., Harris, M., Teagle, D., Kelemen, P., Godard, M., Matter, J., Coggon, J., Oman Drilling Project Scientific Parrty
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Melt transport and compositional heterogeneity of the mantle: a case study of peridotite, dunite, and wehrlite from Atlantis Massif (2019)
  • Author(s): Akizawa, N., Fr?h-Green, G. L., Tamura, A., Tamura, C., Morishita, T.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Structural petrology of peridotites from the Kalaymyo ophiolite (2019)
  • Author(s): Asano, K., Michibayashi, K., Park, J.-W.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Lower crustal accretion processes revealed from the study of gabbroic cores in Holes GT1A and GT2A, the ICDP Oman Drilling Project (2019)
  • Author(s): Chatterjee, S., Takazawa, E., Michibayashi, K., Kelemen, P. B., Teagle, D. A. H., Oman Drilling Project Phase I Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Seismic anisotropy under high pressure conditions of harzburgite collected from Oman Drilling Project Phase II (2019)
  • Author(s): Hatakeyama, K., Katayama, I., Abe, N., The Oman Drilling Project Phase II Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Evidence for semi-brittle flow in mantle-wedge serpentinites linked to high pore fluid pressure (2019)
  • Author(s): Hirauchi, K., Oyanagi, R., Okamoto, A., Nagata, Y., Michibayashi, K.
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Petrological observation of core samples drilled from a mantle section of the Oman ophiolite: A preliminary report of the Oman Drilling Project Phase 2 (2019)
  • Author(s): Ichiyama, Y. and Oman Drilling Project Phase 2 Scientific Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Melt/fluid-rock reaction inferred from the Wadi Tayin mantle section in the southern Oman ophiolite (2019)
  • Author(s): Ishii, K., Takazawa, E., Kuriyama, A., Someya, K., Tamura, Y.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Textural analyses of peridotites drilled by Oman Drilling Project for reconstruction of the orientation of mantle flow (2019)
  • Author(s): Kakihata, Y., Michibayashi, K.
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Petrophysical characteristics of serpentinized peridotites of Hole BA1B, BA3A and BA4A (2019)
  • Author(s): Kakihata, Y., Michibayashi, K., Crispini, L., Jamtvelt, B., Barbier, S., Aslin, J., Menzel, M., Godard, M.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Evidence for semi-brittle flow in mantle-wedge serpentinites using high pore fluid pressure and their implications for deep low frequency earthquakes. (2019)
  • Author(s): Kataoka, K., Nagata, Y., Hirauchi, K., Oyanagi, R., Okamoto, A., Michibayashi, K
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Permeability profile in the Oman Drilling Project inferred from resistivity measurements (2019)
  • Author(s): Katayama, I., Okazaki, K., Abe, N., Ulven, O. L., Hong, G., Zhu, W., Cordonnier, B., Hatakeyama, K., Akamatsu, Y., Michibayashi, K., Godard, M., Kelemen, P., Sience Party The Oman Drilling Project Phase 2
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Low-salinity aqueous fluid inclusions in dolomite veins of a listvenite of Oman Drilling Project Phase 1 (2019)
  • Author(s): Kawamoto, T., Sato, H., Takahashi, T., Guotana, J. M., Morishita, T., Kelemen, P., Coggon, J., Harris, M., Matter, J., Michibayashi, K., Takazawa, E., Teagle, D., The Oman Drilling Project Phase 1 Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Relationship between alteration intensity and elastic wave velocity of gabbroic rocks from ICDP Hole CM1A, Oman Drilling Project Phase II (2019)
  • Author(s): Kimura, K., Katayama, I., Hatakeyama, K., Akamatsu, Y., Abe, N., Okazaki, K., The Oman Drilling Project Phase II
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Reevalution of the origin of mafic layers in the Upper Zone of the Horoman Peridotite (2019)
  • Author(s): Kogure, Y., Takazawa
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Izu-Bonin forearc tectonics subsequent to Pacific Plate subduction initiation: resolving a 15 Ma hiatus enigma (2019)
  • Author(s): Kurz, W., Micheuz, P., Christeson, G. L., Reagan, M. K., Shervais, J. W., Kutterolf, S., Robertson, A., Krenn, K., Michibayashi, K., Quandt, D.
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Structural analyses of ultramafic rocks used by X-ray CT core imaging (Oman Drilling Project Phase 2, D/V CHIKYU) (2019)
  • Author(s): Michibayashi, K., Kakihata, Y., Katayama, I., Okamoto, A., Okazaki, K., Kelemen, P. B., Takazawa, E., Teagle, D. A. H., Oman Drilling Project Phase 2 Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] X-ray CT images of oceanic lithologies obtained on Oman Drilling Project drillcores during ChikyuOman 2017 and 2018 (2019)
  • Author(s): Michibayashi, K., Kelemen, P. B., Godard, M., Takazawa, E., Teagle, D. A. H., The Oman Drilling Project Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Petrochemistry and age determination of the newly discovered eclogite in the western Mongolia (2019)
  • Author(s): Naemura, K., Choindonjamts, E., Kato, T., Javkhlan, O., Michibayashi, K.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Introducing an oceanic core complex in the Shikoku Basin: Mado Megamullion (2019)
  • Author(s): Ohara, Y., Okino, K., Akizawa, N., Fujii, M., Harigane, Y., Hirano, N., Hirauchi, K., Ishizuka, O., Machida, S., Michibayashi, K., Sanfillippo, A., Snow, J. E., Yamashita, H.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Physical property of the fossilized crust-mantle transition zone from ICDP Oman Drilling Project Hole CM1A and CM2B measured onboard D/V Chikyu (2019)
  • Author(s): Okazaki, K., Abe, N., Hatakeyama, K., Akamatsu, Y., Katayama, I., Takazawa, E., Teagle, D. A. H., Kelemen, P. B., Coggon, J., The Oman Drilling Project Phase 2 Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] High-pressure deformation experiments on peridotite gouges under hydrothermal conditions, using a deformation-DIA apparatus (2019)
  • Author(s): Semba, M., Hirauchi, K., Ohuchi, T., Michibayashi, K.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] PGE and Os isotope variation in the gabbros and peridotites from the Oman DP drilling cores in the Samail ophiolite, Oman (2019)
  • Author(s): Senda, R., Suzuki, K., Morishita, T., Takazawa, E., Michibayashi, K., Kelemen, P. B., Teagle, D. A. H., Coggon, J. A., Godard, M., The Oman DP Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] A structural and petrological study of "Shibukawa ultramafic body" in the Sanbagawa belt, western Shizuoka, Japan (2019)
  • Author(s): Shioya, H., Michibayashi, K., Hirauchi, K.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Olivine fabric and mineral compositions in the Maqsad area of the Samil massif, the southern Oman ophiolite. (2019)
  • Author(s): Takahashi, K., Takazawa, E., Michibayashi, K., Kakihata, Y., Senda, R
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Petrology of Oman listvenite: Implications for carbon cycle in the subduction zone (2019)
  • Author(s): Takahashi, T., Morishita, T., Sato, H., Guotana, J. M., Kawamoto, T., Kelemen, P. B., Coggon, J. A., Harris, M., Matter, J. M., Michibayashi, K., Takazawa, E., Teagle, D. A. H., The Oman Drilling Project Phase 1 Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Overview of drilling of crust-mantle boundary of Oman ophiolite: the ICDP Oman Drilling Project (2019)
  • Author(s): Takazawa, E., Teagle, D. A. H., Michibayashi, K., Tamura, Y., Coggon, J. A., Matter, J., Kelemen, P. B., Oman Drilling Project Phase 2 Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Overview of drilling of crust-mantle boundary at CM1&2 sites of Wadi Tayin massif of Oman ophiolite: the ICDP Oman Drilling Project. (2019)
  • Author(s): Takazawa, E., Teagle, D. A. H., Michibayashi, K., Tamura, Y., Coggon, J. A., Matter, J., Kelemen, P. B., Oman Drilling Project Phase 2 Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Different Moho reflections adjacent to Minami-Tori Shima and their petrologic origins (2019)
  • Author(s): Tamura, Y., Kaneda, K., Fujie, G., Ohira, A., Takazawa, E., Ceuleneer, G., Michibayashi, K., Sato, T., Kodaira, S., Miura, S.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Understanding of the mode of seafloor spreading and the architecture of upper oceanic crust by oceanfloor drilling at off-Hawaii MoHole candidate site (2019)
  • Author(s): Umino, S., Morishita, T., Yamashita, M., Ishizuka, O.
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Vein Analysis of Serpentinized Peridotite Basement of Hole BA1B of the Wadi Lawayni Drill Site of the Samail Ophiolite (2019)
  • Author(s): Warren, N. E., Farough, A., Kelemen, P. B., Matter, J. M., Godard, M., Michibayashi, K., Oman Drilling Project Phase 2 Scientific Party,
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] Strong Anisotropy in Magnetic Susceptibility and Distribution of Magnetite Grains in Serpentinite Mylonites (2019)
  • Author(s): Watanabe, T., Kawasaki, K., Michibayashi, K.
  • Organizer: AGU Fall Meeting 2019
  • Int'l Joint Research
• [Presentation] The evolution of melt inclusions in podiform chromitite in Oman. (2019)
  • Author(s): Yao, Y., Takazawa, E., Oman Drilling Project Phase 2 Science Party
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] Numerical simulations for reaction-induced fracture formation of layered gabbro during hydration process. (2019)
  • Author(s): Yoshida, K., Shimizu, H., Tsuchiya, N., Okamoto, A., Phase 2 Science Party Oman Drilling Project
  • Organizer: JpGU Meeting 2019
  • Int'l Joint Research
• [Presentation] モホ面での地震波速度の不連続に対するクラックの効果 (2019)
  • Author(s): 片山郁夫
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] 物質科学と地震学をつなげるかんらん石の結晶方位解析 (2019)
  • Author(s): 道林克禎
  • Organizer: 日本金属学会第３回金属・無機・有機材料の結晶方位解析と応用技術研究会
  • Invited
• [Presentation] チャレンジャー海淵，なぜ世界最深の海なのか？ (2019)
  • Author(s): 道林克禎
  • Organizer: 豊橋市自然史博物館第34回特別企画展「深海の玉手箱」特別企画展記念講演会
  • Invited
• [Presentation] 地球深部マントルの直接研究～しんかい６５００による海底探査～ (2019)
  • Author(s): 道林克禎
  • Organizer: 名古屋大学大学院教育発達科学研究科附属高大接続研究センター「一日総合大学」
• [Presentation] マントル掘削への道 (2019)
  • Author(s): 道林克禎
  • Organizer: 海洋底地球ニュートリノ観測のための海洋工学・地球科学・ニュートリノ物理学 合同ワークショップ
  • Invited
• [Presentation] 本ワークショップの趣旨説明とオマーン掘削プロジェクトの紹介 (2019)
  • Author(s): 道林克禎
  • Organizer: 名古屋大学第２回岩鉱ワークショップ
• [Presentation] 海洋リソスフェアの流体移動ー加水反応ー破壊のフィードバック (2019)
  • Author(s): 岡本敦
  • Organizer: 名古屋大学第２回岩鉱ワークショップ
  • Invited
• [Presentation] オマーンオフィオライトWadi Tayin岩体の地殻－マントル境界の陸上掘削 (2019)
  • Author(s): 高澤栄一・道林克禎・OmanDP Science Team
  • Organizer: InterRidge Japan研究集会
  • Invited
• [Presentation] オマーンオフィオライトの形成場についてーマントルセクションからみた北部岩体と南部岩体の相違ー (2019)
  • Author(s): 高澤栄一
  • Organizer: 名古屋大学第２回岩鉱ワークショップ
• [Presentation] オマーン掘削プロジェクトのＸ線ＣＴデータ解析 (2019)
  • Author(s): 道林克禎
  • Organizer: 名古屋大学第２回岩鉱ワークショップ
• [Presentation] 科研費・基盤研究S 研究課題の概要とこれまでの成果について (2019)
  • Author(s): 道林克禎
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] 地震探査で見るモホ面の不均質性 (2019)
  • Author(s): 藤江剛
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] モホ面での地震波速度の不連続性はクラックによる？ (2019)
  • Author(s): 片山郁夫
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] 海洋リソスフェアでの深部熱水変質作用が沈み込み開始に及ぼす影響 (2019)
  • Author(s): 平内健一
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] 海洋プレート下部地殻の面白さ：南西インド洋海嶺掘削成果なども含めて (2019)
  • Author(s): 森下知晃
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] フィリピン海のテクトニクス ゴジラメガムリオンからマドメガムリオン (2019)
  • Author(s): 小原泰彦
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] ゴジラメガムリオンにおける地殻ー流体反応の痕跡 (2019)
  • Author(s): 針金由美子
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] 伊豆小笠原マリアナ弧での沈み込み開始にいたるテクトニクス (2019)
  • Author(s): 石塚治
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] 海洋リソスフェアの蛇紋岩化作用と物質移動：反応実験とモデリング (2019)
  • Author(s): 岡本敦
  • Organizer: 名古屋大学第１回岩鉱ワークショップ
• [Presentation] オマーン掘削、海域掘削から見えてきた海洋モホの顔相構造と物性構造 (2019)
  • Author(s): 阿部なつ江・岡崎啓史・片山郁夫・畠山航平・赤松祐哉・ICDPオマーン掘削研究パーティ
  • Organizer: InterRidge Japan研究集会
• [Presentation] ICDPオマーン・オフィオライト掘削コア試料「ちきゅう」船上計測の岩石物性測定結果：特にPhase IIにおける古モホ面掘削について (2019)
  • Author(s): 阿部なつ江・岡崎啓史・片山郁夫・畠山航平・赤松祐哉
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] 海洋下部地殻～モホ遷移帯における加水作用と岩石物性変化について：ICDPオマーン掘削コア試料の「ちきゅう」船上計測結果 (2019)
  • Author(s): 阿部なつ江・岡崎啓史・片山郁夫・畠山航平・赤松祐哉・オマーン掘削プロジェクトサイエンスパーティー
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] 海洋モホ面の多様性に対するクラックの影響 (2019)
  • Author(s): 赤松祐哉・片山郁夫・利根川貴志
  • Organizer: InterRidge Japan研究集会
• [Presentation] クラックの発生頻度の違いによる海洋モホ面での地震波不連続性 (2019)
  • Author(s): 赤松祐哉・片山郁夫・利根川貴志
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] Mado Megamullionに分布する岩石の岩石学的・地球物理学的解釈 (2019)
  • Author(s): 秋澤紀克・沖野郷子・石塚治・山下浩之・町田嗣樹・小原泰彦
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] Kalaymyoオフィオライト（ミャンマー）カンラン岩のカンラン石結晶方位ファブリックとメルトー岩石反応 (2019)
  • Author(s): 浅野航平・道林克禎・Jung-Woo Park
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] Kalaymyoオフィオライトカンラン岩の構造岩石学的研究 (2019)
  • Author(s): 浅野航平・道林克禎・Jung-Woo Park
  • Organizer: 日本地質学会中部支部2019年支部年会
• [Presentation] Water content in nominally anhydrous mineral of crust/mantle boudary recovered by International Oman Drilling Project: Analytical strategy and methods (2019)
  • Author(s): Asyraf, M., Morishita, T., Shimizu, K., Ushikubo, T., Itano, K., Guotana, J. M., Oman Drilling Project Phase II Science Party
  • Organizer: InterRidge Japan研究集会
• [Presentation] 四国中央部三波川変成帯白髪山地域のアンチゴライトに記録された変成履歴の検証 (2019)
  • Author(s): 安藤宏太・纐纈佑衣・道林克禎
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] アンチゴライトのラマンスペクトルに関する研究：三波川変成帯，四国中央部白髪山地域の例 (2019)
  • Author(s): 安藤宏太・纐纈佑衣・道林克禎
  • Organizer: 日本地質学会中部支部2019年支部年会
• [Presentation] Antigorite Raman spectrum: a case study in Shiraga region of the central Shikoku, Sanbagawa metamorphic belt, SW Japan (2019)
  • Author(s): 安藤宏太・纐纈佑衣・道林克禎
  • Organizer: 日本地球惑星科学連合大会
• [Presentation] アンチゴライトのラマンスペクトルに関する研究：三波川変成帯白髪山地域の例 (2019)
  • Author(s): 安藤宏太・纐纈佑衣・道林克禎
  • Organizer: 変成岩などシンポジウム2019
• [Presentation] Accretion and origin of lower gabbros: Evidence from Oman ophiolite (Oman Drilling Project) (2019)
  • Author(s): Chatterjee, S., Takazawa, E., Michibayashi, K., Teagle, D.A.H., Kelement, P.B.,
  • Organizer: InterRidge Japan研究集会
• [Presentation] Sr isotope study for mantle peridotites from the Oman ophiolite (2019)
  • Author(s): Eom, J., Wakaki, S., Akizawa, N., Ishikawa, T., Yamaoka, K., Takazawa, E., Kawahata, H.
  • Organizer: InterRidge Japan研究集会
• [Presentation] オマーンオフィオライト陸上掘削試料における弾性波速度の圧力依存性 (2019)
  • Author(s): 畠山航平・片山郁夫・阿部なつ江・岡崎啓史
  • Organizer: InterRidge Japan研究集会
• [Presentation] オマーンオフィオライト掘削試料の弾性波速度測定に基づくオフィオライト層序の速度構造の推定. (2019)
  • Author(s): 畠山航平・片山郁夫・阿部なつ江・岡崎啓史・The Oman Drilling Project Science Party
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] 透過菊池回折によるウルトラマイロナイト中のオリビン結晶方位解析：ＥＢＳＤの微小部への拡張 (2019)
  • Author(s): 伊神洋平・道林克禎・柿畑優季・纐纈佑衣
  • Organizer: 日本地球惑星科学連合大会
• [Presentation] Oman Drilling Projectにより掘削されたかんらん岩の構造岩石学的特徴 (2019)
  • Author(s): 柿畑優季・道林克禎・Oman Drilling Project Phase 2 Science Party
  • Organizer: InterRidge Japan研究集会
• [Presentation] Oman Drilling Projectにより掘削されたかんらん岩の構造解析. (2019)
  • Author(s): 柿畑優季・道林克禎・Oman Drilling Project Phase 2 Science Party
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] 南西インド洋海嶺Marion transform断層で採取された変形かんらん岩の構造岩石学的特徴 (2019)
  • Author(s): 柿畑優季・道林克禎・Henry Dick
  • Organizer: 変成岩などシンポジウム2019
• [Presentation] 南西インド洋海嶺Marion transform断層で採取された変形かんらん岩の構造岩石学的特徴 (2019)
  • Author(s): 柿畑優季・道林克禎・Henry Dick
  • Organizer: 日本地球惑星科学連合大会
• [Presentation] ちきゅう船上での比抵抗測定に基づくオマーン掘削プロジェクトでの浸透率プロファイル (2019)
  • Author(s): 片山郁夫・阿部なつ江・畠山航平・赤松祐哉・岡崎啓史・Ulven Ole Ivar・Hong Gilbert・Zhu Wenlu・Cordonnier Benoit・道林克禎・Godard Marguerite・Kelemen Peter・The Oman Drilling Project Phase 2 Science Party
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] シート状鉱物の研磨によるダメージの検証 (2019)
  • Author(s): 纐纈佑衣・安藤宏太・道林克禎,
  • Organizer: 日本地球惑星科学連合大会
• [Presentation] Core-Log integrated geochemical analysis of Oman ophiolites: Verifying new technology for future ultradeep scientific drilling (2019)
  • Author(s): Kyaw, M., Kimura, J., Yamada, Y., Matter, J., Pezard, P., Michibayashi, K., Takazawa, E.
  • Organizer: InterRidge Japan研究集会
• [Presentation] 岩石ー水相互作用によるマルチスケール構造の理解のためのコア試料のＸ線ＣＴ画像の超解像 (2019)
  • Author(s): 大森敏明・岡本敦・道林克禎
  • Organizer: 日本地球惑星科学連合大会
• [Presentation] オマーンオフィオライトかんらん岩の構造敏感性と地震波特性 (2019)
  • Author(s): 道林克禎
  • Organizer: InterRidge Japan研究集会
• [Presentation] 房総半島嶺岡帯かんらん岩の構造岩石学的特徴とその形成場の推定 (2019)
  • Author(s): 道林克禎・片貝寿幸
  • Organizer: 日本地質学会中部支部2019年支部年会
• [Presentation] ウルトラマイロナイトのTKD分析の試み (2019)
  • Author(s): 道林克禎・伊神洋平・柿畑優季・纐纈佑衣
  • Organizer: 変成岩などシンポジウム2019
• [Presentation] ハードロック掘削における空隙率測定法の改良：オマーンオフィオライト陸上掘削試料の例 (2019)
  • Author(s): 長瀬董平・片山郁夫・横山正・畠山航平・赤松祐弥・岡崎啓史・阿部なつ江・道林克禎
  • Organizer: InterRidge Japan研究集会
• [Presentation] 四国中央部三波川帯に分布するブロック状蛇紋岩の構造岩石学的解析 (2019)
  • Author(s): 永田有理奈・片岡賢悟・平内健一
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] 沈み込み帯マントルウェッジにおける分布不均一なブルース石のアンチゴライトとの脱水分解過程における空隙ネットワークの発生と発達 (2019)
  • Author(s): 永冶方敬・岡本敦・木戸正紀・武藤潤・ウォリスサイモン
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] 超臨界流通式水熱実験による玄武岩ー海水系の元素の選択的溶説に伴う変質過程 (2019)
  • Author(s): 根津勇介・岡本敦・平野伸夫・宇野正起・土屋範芳
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] 蛇紋岩体中のドロマイトー滑石脈の形成と泥質片岩境界との反応帯：三波川帯関東山地長瀞の例 (2019)
  • Author(s): 岡本敦・大柳良介・吉田一貴・サティッシュクマール・宇野正紀
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] シリカ粒子と流体圧振動 (2019)
  • Author(s): 岡本敦
  • Organizer: 変成岩などシンポジウム2019
• [Presentation] ICDPオマーン掘削計画BT1Bサイトにおいて採取されたリストべナイトのX線CTコア画像から推定される好物モード比 (2019)
  • Author(s): 岡崎啓史・道林克禎・畠山航平・阿部なつ江・Kevin T.M. Johnson・Peter Kelemen・Oman Drilling Project Phase 1 Science Party
  • Organizer: InterRidge Japan研究集会
• [Presentation] . 四国海盆海洋コアコンプレックスの形成 (2019)
  • Author(s): 沖野郷子・小原泰彦・藤井昌和・羽入朋子
  • Organizer: InterRidge Japan研究集会
• [Presentation] Attenuated Total Reflection infrared (ATR-IR) spectroscopy of serpentine minerals (2019)
  • Author(s): Sakaguchi, I., Kouketsu, Y., Michibayashi, K., Wallis, S.
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] Attenuated total reflection infrared spectroscopy (ATR-IR) of antigorite, chrysotile and lizardite (2019)
  • Author(s): Illona Sakaguchi・纐纈佑衣・道林克禎・Simon Wallis
  • Organizer: 変成岩などシンポジウム2019
• [Presentation] 静岡県西部三波川帯「渋川超苦鉄質岩」の構造岩石学的研究とその起源 (2019)
  • Author(s): 塩谷 輝・道林克禎・纐纈佑衣・平内健一・苗村康輔
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] 静岡県西部三波川帯”渋川超苦鉄質岩”の構造岩石学的研究 (2019)
  • Author(s): 塩谷輝・道林克禎・纐纈佑衣・平内健一・苗村康輔
  • Organizer: 日本地質学会中部支部2019年支部年会
• [Presentation] 四国海盆における海洋コアコンプレックスから採取されたかんらん岩の構造岩石学的研究 (2019)
  • Author(s): 瀬川いづみ・平内健一・小原泰彦
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] Mineralogy of listvenite (2019)
  • Author(s): Takahashi, T., Morishita, T., Harigane, Y., Kawamoto, Y., OmanDP Phase 1 Science Party
  • Organizer: InterRidge Japan研究集会
• [Presentation] オマーンオフィオライトWadi Tayin岩体における地殻ーマントル境界にみられるマントルーメルト相互作用 (2019)
  • Author(s): 高澤栄一・小暮優芽斗・石井慶佑・Chatterjee Sayantani・小柳夏希・道林克禎・田村芳彦・The Oman Drilling Project Science Party
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] 海洋地殻構造を規定するプレート拡大モードの要因について－ハワイ沖上部地殻貫通計画による解明 (2019)
  • Author(s): 海野進・森下知晃・木村純一・小野重明・阿部なつ江・山下幹也・Michael Garcia・Frieder Klein・冨永雅子・島伸和・道林克禎
  • Organizer: InterRidge Japan研究集会
• [Presentation] ハワイ沖上部地殻貫通計画ー海洋地殻構造を規定するプレート拡大モードの支配要因の解明 (2019)
  • Author(s): 海野進・森下知晃・木村純一・小野重明・阿部なつ江・山下幹也・ガルシア マイケル・クライン フリーダー・冨永雅子・島伸和・道林克禎
  • Organizer: 日本地質学会第１２6年学術大会
• [Presentation] 海洋地殻構造が示すプレート拡大モードの解明ーハワイ沖モホール候補地における上部海洋地殻貫通計画 (2019)
  • Author(s): 海野進・森下知晃・木村純一・山下幹也・ガルシア マイケル・クライン フリーダー・島伸和・小野重明・阿部なつ江・道林克禎・冨永雅子
  • Organizer: 日本鉱物科学会2019年年会
• [Presentation] A new view on the melt inclusions in Oman podiform chromitite: High resolution X-ray computed tomography and scanning electron microscopy studies (2019)
  • Author(s): Yao, Y., Takazawa, E., Sayantani, C., Richard, A., Morlot, C., Creon, L., Al-Busaidi, S., Michibayashi, K., Oman Drilling Project Science Team
  • Organizer: InterRidge Japan研究集会
• [Presentation] オマーンオフィオライトの層状斑れい岩の加水反応とき裂形成のシミュレーション (2019)
  • Author(s): 吉田一貴・清水浩之・岡本敦・土屋範芳
  • Organizer: InterRidge Japan研究集会
• [Presentation] 海洋リソスフェアの蛇紋岩化作用に伴うき裂ネットワーク：数値モデリングと特徴量抽出 (2019)
  • Author(s): 吉田一貴・清水浩之・岡本敦・土屋範芳
  • Organizer: 日本地質学会第１２6年学術大会
• [Remarks] 道林・基盤研究(S) H28-R3
  • URL: http://www.eps.nagoya-u.ac.jp/~ganko/16H06347/home.html
• [Remarks] Oman Drilling Project
  • URL: http://www.omandrilling.ac.uk/
• [Funded Workshop] 国際オマーンオフィオライト会議 (2020)