Investigation of the plume source regions using mantle xenoliths

• Project/Area Number: 19H01998
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 17040:Solid earth sciences-related
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Ishikawa Akira 東京工業大学, 理学院, 准教授 (20524507)
• Co-Investigator(Kenkyū-buntansha): 横山 哲也 東京工業大学, 理学院, 教授 (00467028) ; 角野 浩史 東京大学, 大学院総合文化研究科, 准教授 (90332593) ; 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) ; 渡慶次 聡 国立研究開発法人海洋研究開発機構, その他, その他 (30516654)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000); Fiscal Year 2021: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2019: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
• Keywords: マントル / かんらん岩 / 強親鉄性元素 / オスミウム同位体 / ヘリウム同位体 / 捕獲岩 / ハワイ諸島 / 希ガス同位体 / マントルプルーム / プルーム

Outline of Research at the Start

本研究では、海洋島に産するかんらん岩捕獲岩とプレート境界に露出するかんらん岩の間に、地球深部と浅部における化学組成や同位体組成の違いが反映されている可能性を探る。そのため、両者の主要・微量元素濃度、強親鉄性元素濃度、オスミウム同位体比、希ガス同位体比の系統的データを比較することにより、地球深部に由来するマントルプルームの化学的特徴を検討し、プルーム上昇源の形成進化モデルを構築することを目指す。

Outline of Final Research Achievements

This study focuses on the possibility that some mantle xenoliths in oceanic regions are derived from mantle plumes, and aim to understand the heterogeneity of the Earth's deep mantle and mantle dynamics throughout the Earth's history. Mantle peridotites from the Hawaiian Islands and French Polynesia are dominated by harzburgites with unradiogenic Os isotopic ratios, suggesting that mantle material melted at the Earth's surface in the past and transported to the Earth's deep interior may have been a major component of the ascending plume. On the other hand, the correlation with He isotope ratios in isolated olivine is inconsistent with predictions based on U/He partitioning experiments, and it is concluded that the "ancient depleted mantle" is not a suitable reservoir for 3He in the Earth's deep interior.

Academic Significance and Societal Importance of the Research Achievements

マントルプルームの実態を解明することは、全地球ダイナミクスの理解の進展に欠かせない重要課題である。地震学的手法により見出される核-マントル境界直上の低速度領域はマントルプルームの上昇源と考えられているが、どのような物質から構成されているのかは未だ定かではない。本研究ではハワイ諸島やフレンチポリネシアのホットスポットマグマが地球表層にもたらしたマントル捕獲岩の一部はマントルプルームの主要構成要素であるとともに、過去の地球表層で形成された物質であったことを明らかにした。したがって、本研究は全地球ダイナミクスの従来描像に新たな知見を与えたものといえる。

Research Products

• [Int'l Joint Research] Department of Earth Sciences/Univeristy of Hawai‘i at Manoa(米国)
• [Int'l Joint Research] ハワイ大学(米国)
• [Journal Article] Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites (2023)
  • Author(s): Yokoyama Tetsuya、Nagashima Kazuhide、Nakai Izumi、Young Edward D.、Abe Yoshinari、Aleon Jerome、Alexander Conel M. O’D.、Amari Sachiko、Amelin Yuri、Bajo Ken-ichi ... Yabuta Hikaru ... et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 7850-7850
  • DOI: 10.1126/science.abn7850
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Contribution of Ryugu-like material to Earth’s volatile inventory by Cu and Zn isotopic analysis (2023)
  • Author(s): Paquet M. et al., including Iizuka T.
  • Journal Title: Nature Astronomy Volume: 7 Issue: 5 Pages: 182-189
  • DOI: 10.1038/s41550-023-01938-6
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• [Journal Article] Rock and sediment dataset of petit-spots in the northwestern Pacific (2022)
  • Author(s): Akizawa Norikatsu、Hirano Naoto、Machida Shiki、Ishikawa Akira、Niwa Yuka、Shimoda Gen、Yasukawa Kazutaka、Matsuzaki Kenji M.、Tamura Chiori、Kaneko Junji
  • Journal Title: Data in Brief Volume: 45 Pages: 108764-108764
  • DOI: 10.1016/j.dib.2022.108764
  • Peer Reviewed / Open Access
• [Journal Article] Sulfur in Archean komatiite implies early subduction of oceanic lithosphere (2022)
  • Author(s): Yusuke Kubota, Fumihiro Matsuura, Kenji Shimizu, Akira Ishikawa, Yuichiro Ueno
  • Journal Title: Earth and Plenetary Science Letters Volume: 598 Pages: 117826-117826
  • DOI: 10.1016/j.epsl.2022.117826
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Geochemical records of the end-Triassic Crisis preserved in a deep marine section of the Budva Basin, Dinarides, Montenegro. (2022)
  • Author(s): de Graaff Sietze J.、Percival Lawrence M.E.、Kaskes Pim、Dehais Thomas、de Winter Niels J.、Jansen Max N.、Smit Jan、Sinnesael Matthias、Vellekoop Johan、Sato Honami、Ishikawa Akira、Spassov Simo、Claeys Philippe、Goderis Steven
  • Journal Title: Palaeogeography, Palaeoclimatology, Palaeoecology Volume: 606 Pages: 111250-111250
  • DOI: 10.1016/j.palaeo.2022.111250
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Chemical and Isotopic Evaluation of a Microsampling Method using Laser Ablation and Membrane Filter (2022)
  • Author(s): Masuda Yuki、Yokoyama Tetsuya、Okabayashi Satoki、Ishikawa Akira、Iwamori Hikaru
  • Journal Title: Geostandards and Geoanalytical Research Volume: in press Issue: 2 Pages: 205-222
  • DOI: 10.1111/ggr.12426
  • Peer Reviewed
• [Journal Article] The Solar System calcium isotopic composition inferred from Ryugu samples (2022)
  • Author(s): Moynier F.、Dai W.、Yokoyama T.、Hu Y.、Paquet M.、Abe Y.、Aleon J.、Alexander C.M.O'D、Amari S.、Amelin Y. ... Yabuta H. ... et al.
  • Journal Title: Geochemical Perspectives Letters Volume: 24 Pages: 1-6
  • DOI: 10.7185/geochemlet.2238
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ryugu’s nucleosynthetic heritage from the outskirts of the Solar System (2022)
  • Author(s): Hopp Timo、Dauphas Nicolas、Abe Yoshinari、Aleon Jerome、O’D. Alexander Conel M.、Amari Sachiko、Amelin Yuri、Bajo Ken-ichi、Bizzarro Martin、Bouvier Audrey ... Yabuta Hikaru ... et al.
  • Journal Title: Science Advances Volume: 8 Issue: 46 Pages: 1-10
  • DOI: 10.1126/sciadv.add8141
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Presolar Stardust in Asteroid Ryugu (2022)
  • Author(s): Barosch Jens、Nittler Larry R.、Wang Jianhua、O’D. Alexander Conel M.、De Gregorio Bradley T.、Engrand Cecile、Kebukawa Yoko、Nagashima Kazuhide、Stroud Rhonda M.、Yabuta Hikaru et al.
  • Journal Title: The Astrophysical Journal Letters Volume: 935 Issue: 1 Pages: 1-12
  • DOI: 10.3847/2041-8213/ac83bd
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2 (2022)
  • Author(s): Kawasaki Noriyuki、Nagashima Kazuhide、Sakamoto Naoya、Matsumoto Toru、Bajo Ken-ichi、Wada Sohei、Igami Yohei、Miyake Akira、Noguchi Takaaki、Yamamoto Daiki ... Yabuta Hikaru ... et al.
  • Journal Title: Science Advances Volume: 8 Issue: 50 Pages: 1-10
  • DOI: 10.1126/sciadv.ade2067
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Testing the Ontong Java Nui Hypothesis: The Largest Supervolcano Ever on Earth (2021)
  • Author(s): SANO Takashi、TEJADA Maria Luisa G.、NAKANISHI Masao、HANYU Takeshi、MIURA Seiichi、SUETSUGU Daisuke、TONEGAWA Takashi、ISHIKAWA Akira、SHIMIZU Kenji、SHIMIZU Shoka
  • Journal Title: Journal of Geography (Chigaku Zasshi) Volume: 130 Issue: 4 Pages: 559-584
  • DOI: 10.5026/jgeography.130.559
  • NAID: 130008091273
  • ISSN: 0022-135X, 1884-0884
  • Year and Date: 2021-08-25
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Sedimentary record of Upper Triassic impact in the Lagonegro Basin, southern Italy: Insights from highly siderophile elements and Re-Os isotope stratigraphy across the Norian/Rhaetian boundary (2021)
  • Author(s): Sato Honami、Ishikawa Akira、Onoue Tetsuji、Tomimatsu Yuki、Rigo Manuel
  • Journal Title: Chemical Geology Volume: 586 Pages: 120506-120506
  • DOI: 10.1016/j.chemgeo.2021.120506
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Halogen heterogeneity in the subcontinental lithospheric mantle revealed by I/Br ratios in kimberlites and their mantle xenoliths from South Africa, Greenland, China, Siberia, Canada, and Brazil (2021)
  • Author(s): Toyama, N., Ishikawa, A., Yamamoto, J., Kaneoka, I., Muramatsu, Y.
  • Journal Title: American Mineralogist Volume: 106 Issue: 12 Pages: 1890-1899
  • DOI: 10.2138/am-2021-7332
  • Peer Reviewed
• [Journal Article] Highly refractory dunite formation at Gibbs Island and Bruce Bank, and its role in the evolution of the circum-Antarctic continent. (2021)
  • Author(s): Akizawa, K., Ishikawa, A., Fujita, R., Choi., S.H.
  • Journal Title: The Canadian Mineralogist Volume: 59 Issue: 6 Pages: 1731-1753
  • DOI: 10.3749/canmin.2100030
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Seismic evidence for a thermochemical mantle plume underplating the lithosphere of the Ontong Java Plateau (2021)
  • Author(s): Isse Takehi、Suetsugu Daisuke、Ishikawa Akira、Shiobara Hajime、Sugioka Hiroko、Ito Aki、Kawano Yuki、Yoshizawa Kazunori、Ishihara Yasushi、Tanaka Satoru、Obayashi Masayuki、Tonegawa Takashi、Yoshimitsu Junko
  • Journal Title: Communications Earth & Environment Volume: 2 Issue: 1 Pages: 98-98
  • DOI: 10.1038/s43247-021-00169-9
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• [Journal Article] New geochronological constraints on the middle Archean Shurugwi greenstone belt toward an understanding of the crustal evolution of the Zimbabwe Craton (2021)
  • Author(s): Sawada Hikaru、Sawaki Yusuke、Sakata Shuhei、Ishikawa Akira、Muteta Brian、Isozaki Yukio、Maruyama Shigenori
  • Journal Title: Journal of African Earth Sciences Volume: 173 Pages: 104021-104021
  • DOI: 10.1016/j.jafrearsci.2020.104021
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Globally distributed iridium layer preserved within the Chicxulub impact structure (2021)
  • Author(s): Goderis, S., Sato, H., Ferrire, L., Schmitz, B., Burney, D., Kaskes, P., Vellekoop, J., Wittmann, A., Schulz, T., Chernonozhkin, S.M., Claeys, P., de Graaff, S. J., Dehais, T., de Winter, N.J., Elfman, M.F., Ishikawa, A., et al.
  • Journal Title: Science Advances Volume: 7 Issue: 9 Pages: 3647-3647
  • DOI: 10.1126/sciadv.abe3647
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Compositional heterogeneity of Archean mantle estimated from Sr and Nd isotopic systematics of basaltic rocks from North Pole, Australia, and the Isua supracrustal belt, Greenland (2020)
  • Author(s): Nakamura Hitomi、Sano Ayane、Kagami Saya、Yokoyama Tetsuya、Ishikawa Akira、Komiya Tsuyoshi、Iwamori Hikaru
  • Journal Title: Precambrian Research Volume: 347 Pages: 105803-105803
  • DOI: 10.1016/j.precamres.2020.105803
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A simple determination of whole-rock major- and trace-element composition for peridotite by micro-XRF spectrometer and ICP-MS using fused-glass bead (2020)
  • Author(s): Akizawa Norikatsu、Ishikawa Akira、Kogiso Tetsu
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 54 Issue: 2 Pages: 81-90
  • DOI: 10.2343/geochemj.2.0587
  • NAID: 130007831716
  • ISSN: 0016-7002, 1880-5973
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A framework for understanding Mo isotope records of Archean and Paleoproterozoic Fe- and Mn-rich sedimentary rocks: Insights from modern marine hydrothermal Fe-Mn oxides (2020)
  • Author(s): Goto Kosuke T.、Sekine Yasuhito、Shimoda Gen、Hein James R.、Aoki Shogo、Ishikawa Akira、Suzuki Katsuhiko、Gordon Gwyneth W.、Anbar Ariel D.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 280 Pages: 221-236
  • DOI: 10.1016/j.gca.2020.04.017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Occurrence and chemical composition of the Eoarchean carbonate rocks of the Nulliak supracrustal rocks in the Saglek Block of northeastern Labrador, Canada (2020)
  • Author(s): Yoshida Satoshi、Ishikawa Akira、Aoki Shogo、Komiya Tsuyoshi
  • Journal Title: Island Arc Volume: 30 Issue: 1 Pages: 12381-12381
  • DOI: 10.1111/iar.12381
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magma plumbing system for the Millennium Eruption at Changbaishan volcano, China: Constraints from whole-rock U?Th disequilibrium (2020)
  • Author(s): Kuritani Takeshi、Nakagawa Mitsuhiro、Nishimoto Jumpei、Yokoyama Tetsuya、Miyamoto Tsuyoshi
  • Journal Title: Lithos Volume: 366-367 Pages: 105564-105564
  • DOI: 10.1016/j.lithos.2020.105564
  • Peer Reviewed
• [Journal Article] Origin of hydrocarbon and noble gases, carbon dioxide and molecular nitrogen in the Miocene strata of the eastern part of the Polish Carpathian Foredeep: Isotopic and geological approach (2020)
  • Author(s): Kotarba Maciej J.、Sumino Hirochika、Nagao Keisuke
  • Journal Title: Applied Geochemistry Volume: 122 Pages: 104732-104732
  • DOI: 10.1016/j.apgeochem.2020.104732
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Geomorphology, morphometry, spatial distribution and ages of mafic monogenetic volcanoes of the Peinado and Incahuasi fields, southernmost Central Volcanic Zone of the Andes (2020)
  • Author(s): Grosse Pablo、Ochi Ramacciotti Maria Luisa、Escalante Fochi Florencia、Guzman Silvina、Orihashi Yuji、Sumino Hirochika
  • Journal Title: Journal of Volcanology and Geothermal Research Volume: 401 Pages: 106966-106966
  • DOI: 10.1016/j.jvolgeores.2020.106966
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] δD and δ18O variations of the magmatic system beneath Deception Island volcano (Antarctica): Implications for magma ascent and eruption forecasting (2020)
  • Author(s): Alvarez-Valero A.M.、Gisbert G.、Aulinas M.、Geyer A.、Kereszturi G.、Polo-Sanchez A.、Nunez-Guerrero E.、Sumino H.、Borrajo J.
  • Journal Title: Chemical Geology Volume: 542 Pages: 119595-119595
  • DOI: 10.1016/j.chemgeo.2020.119595
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Fluid overpressure in subduction plate boundary caused by mantle-derived fluids (2020)
  • Author(s): Nishiyama Naoki、Sumino Hirochika、Ujiie Kohtaro
  • Journal Title: Earth and Planetary Science Letters Volume: 538 Pages: 116199-116199
  • DOI: 10.1016/j.epsl.2020.116199
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Archean to Paleoproterozoic seawater halogen ratios recorded by fluid inclusions in chert and hydrothermal quartz (2020)
  • Author(s): Burgess R. , Goldsmith S.L. , Sumino H. , Gilmour J.D. , Marty B. , Pujol M. , Konhauser K.O.
  • Journal Title: American Mineralogist Volume: － Issue: 9 Pages: 1317-1325
  • DOI: 10.2138/am-2020-7238
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Alkali basalt from the Seifu Seamount in the Sea of Japan: post-spreading magmatism in a back-arc setting (2020)
  • Author(s): Morishita Tomoaki、Hirano Naoto、Sumino Hirochika、Sato Hiroshi、Shibata Tomoyuki、Yoshikawa Masako、Arai Shoji、Nauchi Rie、Tamura Akihiro
  • Journal Title: Solid Earth Volume: 11 Issue: 1 Pages: 23-36
  • DOI: 10.5194/se-11-23-2020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hydrothermal Chromitites from the Oman Ophiolite: The Role of Water in Chromitite Genesis (2020)
  • Author(s): Arai Shoji、Miura Makoto、Tamura Akihiro、Akizawa Norikatsu、Ishikawa Akira
  • Journal Title: Minerals Volume: 10 Issue: 3 Pages: 217-217
  • DOI: 10.3390/min10030217
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Separation of Heavy Lanthanoids by Flash Column Chromatography for Precise Determination of Er and Yb Isotope Compositions in Rock Samples (2020)
  • Author(s): Yokoyama Tetsuya、Fukai Ryota、Nakahara Masaki
  • Journal Title: Geostandards and Geoanalytical Research Volume: in press Issue: 2 Pages: 265-285
  • DOI: 10.1111/ggr.12317
  • Peer Reviewed
• [Journal Article] Geochemically heterogeneous Martian mantle inferred from Pb isotope systematics of depleted shergottites (2020)
  • Author(s): Moriwaki Ryota、Usui Tomohiro、Tobita Minato、Yokoyama Tetsuya
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 274 Pages: 157-171
  • DOI: 10.1016/j.gca.2020.01.014
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Iron isotopic composition of very low-titanium basalt deduced from the iron isotopic signature in Luna 16, 20, and 24 soils (2020)
  • Author(s): Okabayashi Satoki、Yokoyama Tetsuya、Hirata Takafumi、Terakado Kazuo、Galimov Erik M.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 269 Pages: 1-14
  • DOI: 10.1016/j.gca.2019.10.020
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• [Journal Article] Major/trace elements and Sr?Nd?Pb isotope systematics of lavas from lakes Barombi Mbo and Barombi Koto in the Kumba graben, Cameroon volcanic line: Constraints on petrogenesis (2020)
  • Author(s): Asaah A.N.E.、Yokoyama T.、Aka F.T.、Iwamori H.、Kuritani T.、Usui T.、Gountie Dedzo M.、Tamen J.、Hasegawa T.、Fozing E.M.、Wirmvem M.J.、Nche A.L.
  • Journal Title: Journal of African Earth Sciences Volume: 161 Pages: 103675-103675
  • DOI: 10.1016/j.jafrearsci.2019.103675
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Geochemistry, geochronology and petrogenesis of Maya Block granitoids and dykes from the Chicxulub Impact Crater, Gulf of Mexico: implications for the assembly of Pangea (2020)
  • Author(s): Zhao, J., Xiao, L., Gulick, S.P.S., Morgan, J.V., Kring, D., Fukugauchi, J.U., Schmieder, M., Graaff, S.J., Wittmann, A., Ross, C.H., Claeys, P., Pickersgill, A., Kaskes, P., Goderis, S., Rasmussen, C., Vajda, V., Ferriere, L., Feignon, J.G., Chenot, E., Perez-Cruz, L., Sato, H., Yamaguchi, K.
  • Journal Title: Gondwana Research Volume: 82 Pages: 128-150
  • DOI: 10.1016/j.gr.2019.12.003
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Precambrian basement, provenance implication, and tectonic evolution of the Gargan block of the Tuva-Mongolia Zone, Central Asian Orogenic Belt (2019)
  • Author(s): Bold, U., Y. Isozaki, S. Aoki, S. Sakata, A. Ishikawa, Y. Sawaki, H. Sawada
  • Journal Title: Gondwana Research Volume: 75 Pages: 172-183
  • DOI: 10.1016/j.gr.2019.05.003
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Characterization of Crustal and Uppermost‐Mantle Seismic Discontinuities in the Ontong Java Plateau (2019)
  • Author(s): Tonegawa T.、Miura S.、Ishikawa A.、Sano T.、Suetsugu D.、Isse T.、Shiobara H.、Sugioka H.、Ito A.、Ishihara Y.、Tanaka S.、Obayashi M.、Yoshimitsu J.、Kobayashi T.
  • Journal Title: Journal of Geophysical Research: Solid Earth Volume: 124 Issue: 7 Pages: 7155-7170
  • DOI: 10.1029/2018jb016970
  • Peer Reviewed
• [Journal Article] A Miocene impact ejecta layer in the pelagic Pacific Ocean (2019)
  • Author(s): Nozaki Tatsuo、Ohta Junichiro、Noguchi Takaaki、Sato Honami、Ishikawa Akira、Takaya Yutaro、Kimura Jun-Ichi、Chang Qing、Shimada Kazuhiko、Ishibashi Jun-ichiro、Yasukawa Kazutaka、Kimoto Katsunori、Iijima Koichi、Kato Yasuhiro
  • Journal Title: Scientific Reports Volume: 9 Issue: 1 Pages: 16111-16111
  • DOI: 10.1038/s41598-019-52709-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Origin and Evolution of Distinct Molybdenum Isotopic Variabilities within Carbonaceous and Noncarbonaceous Reservoirs (2019)
  • Author(s): Yokoyama Tetsuya、Nagai Yuichiro、Fukai Ryota、Hirata Takafumi
  • Journal Title: The Astrophysical Journal Volume: 883 Issue: 1 Pages: 62-62
  • DOI: 10.3847/1538-4357/ab39e7
  • Peer Reviewed / Open Access
• [Journal Article] Geochemistry and Sm-Nd chronology of a Stannern-group eucrite, Northwest Africa 7188 (2019)
  • Author(s): Kagami, S., Haba, M. K., Yokoyama, T., Usui, T., Greenwood, R. C.
  • Journal Title: Meteoritics & Planetary Science Volume: 54 Issue: 11 Pages: 2710-2728
  • DOI: 10.1111/maps.13382
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Assessment of the secondary instrumental fractionation in TIMS: Implication for high-precision Nd isotope analysis of geological samples (2019)
  • Author(s): Fukai Ryota、Yokoyama Tetsuya
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 53 Issue: 5 Pages: 333-337
  • DOI: 10.2343/geochemj.2.0569
  • NAID: 130007724543
  • ISSN: 0016-7002, 1880-5973
  • Peer Reviewed
• [Journal Article] Halogen Heterogeneity in the Lithosphere and Evolution of Mantle Halogen Abundances Inferred From Intraplate Mantle Xenoliths (2019)
  • Author(s): Kobayashi Masahiro、Sumino Hirochika、Burgess Ray、Nakai Shun'ichi、Iizuka Tsuyoshi、Nagao Jun、Kagi Hiroyuki、Nakamura Michihiko、Takahashi Eiichi、Kogiso Tetsu、Ballentine Chris J.
  • Journal Title: Geochemistry, Geophysics, Geosystems Volume: 20 Issue: 2 Pages: 952-973
  • DOI: 10.1029/2018gc007903
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Recycled Components in Mantle Plumes Deduced From Variations in Halogens (Cl, Br, and I), Trace Elements, and 3He/4He Along the Hawaiian-Emperor Seamount Chain (2019)
  • Author(s): Broadley Michael W.、Sumino Hirochika、Graham David W.、Burgess Ray、Ballentine Chris J.
  • Journal Title: Geochemistry, Geophysics, Geosystems Volume: 20 Issue: 1 Pages: 277-294
  • DOI: 10.1029/2018gc007959
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] The thermal and chemical litho-stratigraphy beneath the Hawaiian Islands (2023)
  • Author(s): Ryo Fujita, Akira Ishikawa, Tetsuya Yokoyama, Michael O. Garcia
  • Organizer: Goldschmidt2023
• [Presentation] 海洋リソスフェアの温度構造：マントル捕獲岩研究からの視点 (2022)
  • Author(s): 石川 晃, 藤田 遼, 丹羽 佑果, 秋澤 紀克
  • Organizer: 日本地球化学会第69回年会
• [Presentation] 前弧域の枯渇したマントルカンラン岩が記録する古溶融イベント (2022)
  • Author(s): 秋澤 紀克, 石川 晃, 石井 輝秋
  • Organizer: 日本地球化学会第69回年会
• [Presentation] クック諸島産マントル捕獲岩から推定する太平洋プレートの熱化学構構造 (2022)
  • Author(s): 秋澤 紀克, 大嶋 ちひろ, 石川 晃, 角野 浩史, 小澤 一仁, 佐藤 侑人, 浜田 盛久
  • Organizer: 日本地球化学会第69回年会
• [Presentation] 神津島の流紋岩及び玄武岩質捕獲岩のMo安定同位体組成 (2022)
  • Author(s): 田村 達也, 横山 哲也, 石川 晃
  • Organizer: 日本地球化学会第69回年会
• [Presentation] Thermal structure of oceanic lithosphere constrained from the petit-spot mantle xenoliths (2022)
  • Author(s): Yuka Niwa, Akira Ishikawa, Norikatsu Akizawa
  • Organizer: Goldschmidt2022
  • Int'l Joint Research
• [Presentation] Simple and accurate determination of chalcophile and highly siderophile elements in carbonaceous chondrites using triple quadrupole ICP-MS (2022)
  • Author(s): Akira Ishikawa, Shun Nakano, Ryo Fujita, Tetsuya Yokoyama
  • Organizer: Goldschmidt2022
  • Int'l Joint Research
• [Presentation] Can the slightly depleted mantle be a high 3He/4He reservoir? (2022)
  • Author(s): Ryo Fujita, Akira Ishikawa, Hirochika Sumino, Michael O. Garcia
  • Organizer: Goldschmidt2022
  • Int'l Joint Research
• [Presentation] Evidence for suboceanic small-scale convection from a “garnet”-bearing lherzolite xenolith, Aitutaki Island, Cook Islands (2022)
  • Author(s): Norikatsu Akizawa, Kazuhito Ozawa, Tetsu Kogiso, Akira Ishikawa, Simon Richard Wallis, Tatsuhiko Kawamoto, Akihiro Tamura, Tomoaki Morishita
  • Organizer: Japan Geoscience Union Meeting 2022
• [Presentation] Molybdenum isotopic compositions in volcanic rocks from the Izu islands (2022)
  • Author(s): Tatsuya Tamura, Tetsuya Yokoyama, Akira Ishikawa, Takeshi Kuritani, Ikshu Gautam
  • Organizer: Japan Geoscience Union Meeting 2022
• [Presentation] The possibility of the depleted mantle being a high 3He/4He reservoir (2022)
  • Author(s): Ryo Fujita, Akira Ishikawa, Hirochika Sumino, Michael O Garcia
  • Organizer: Japan Geoscience Union Meeting 2022
• [Presentation] A thermal structure of oceanic lithosphere constrained from mantle xenoliths from the petit-spot volcano (2022)
  • Author(s): Yuka Niwa, Akira Ishikawa, Norikatsu Akizawa
  • Organizer: Japan Geoscience Union Meeting 2022
• [Presentation] Sampling source heterogeneities that bind the Ontong Java Nui puzzle together (2021)
  • Author(s): Maria Luisa Garcia Tejada, Takashi Sano, Takeshi Hanyu, Anthony Koppers, Masao Nakanishi, Akira Ishikawa, Takashi Miyazaki, Kenichiro Tani, Shoka Shimizu, Qing Chang, Bogdan Vaglarov
  • Organizer: Goldschmidt2021
  • Int'l Joint Research
• [Presentation] Highly siderophile element mobility during serpentinization of mantle wedge peridotite (2021)
  • Author(s): Akira Ishikawa, Natsuki Nakamura, Tetsuya Yokoyama
  • Organizer: Goldschmidt2021
  • Int'l Joint Research
• [Presentation] In situ Hydrogen Isotope Analysis of Pyroxenes in Precambrian Gabbro (2020)
  • Author(s): Yagi H, Itoh S, Ishikawa A, Shibuya T, Ueno Y
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] No Impact Signatures in Earth's Oldest Rocks from Acasta Gneiss Complex, Canada (2020)
  • Author(s): Akira Ishikawa, Keiko Koshida, Katsuhiko Suzuki, Tetsuya Yokoyama, Tsuyoshi Komiya
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] Ancient Origin of Hawaiian Xenoliths: Fragments of Mantle Plume? (2020)
  • Author(s): Ryo Fujita, Akira Ishikawa, Tetsuya Yokoyama, Michael O. Garcia
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] A Peridotite Xenolith from Garnet-Stability Field beneath Aitutaki: An Implication for Small-Scale Convection (2020)
  • Author(s): Norikatsu Akizawa, Kazuhito Ozawa, Simon Wallis, Akihiro Tamura, Akira Ishikawa, Tetsu Kogiso
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] Development of Laser Ablation with Filter (LAF) Sampling Method for Micro-Scale Isotopic Analysis of Geologic Materials (2020)
  • Author(s): Yuki Masuda, Tetsuya Yokoyama, Satoki Okabayashi, Akira Ishikawa
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] Stable Sr Isotopes of the Middle-Late Permian Carbonate: Its Implication for Driving Ocean Sr Budget Change (2020)
  • Author(s): Tomomi Kani, Yukio Isozaki, Keiji Misawa, Akira Ishikawa, Shigekazu Yoneda
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] Origin and evolution of distinct isotopic variabilities for Sr, Mo, and Nd within CC and NC reservoirs (2020)
  • Author(s): Yokoyama, T., Fukai, R., Nagai, Y., Hirata, T.
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research / Invited
• [Presentation] Assessment of the effect of mass-dependent fractionation on 142Nd compositions in Archean rocks (2020)
  • Author(s): Fukai, R., Asanuma, H., Komiya, T., Yokoyama, T., Hirata, T.
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] Lead Isotope Analysis for Picogram Size Samples by TE-DS-TIMS using Amplifier equipped with 10^13 Ohm Resistor (2020)
  • Author(s): Fukami, Y., Tobita, M., Yokoyama, T., Suzuki, K.
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] コマチアイトの強親鉄性元素地球化学：マントル進化史の解明に向けて (2020)
  • Author(s): 中野 隼, 石川 晃, 上野 雄一郎, 横山 哲也
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] Re-Os systematic of volcanic rock from East Cone, Kamchatka Peninsula (2020)
  • Author(s): MITSUDE Yuri, NISHIZAWA Tatsuji, NAKAMURA Hitomi, CHURIKOVA Tatiana, GORDEYCHIK Boris , ISHIKAWA Akira, FUJITA Ryo, IWAMORI Hikaru, SAKATA Shuhei
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] Highly siderophile element mobility during serpentinization of forearc mantle peridotite (2020)
  • Author(s): Natuski Nakamura, Akira Ishikawa, Tetsuya Yokoyama
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] 神津島流紋岩及び玄武岩質捕獲岩の地球化学的研究 (2020)
  • Author(s): 田村 達也, 横山 哲也, 石川 晃
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] ハワイ諸島産マントル捕獲岩の全岩オスミウム同位体と強親鉄性元素組成 (2020)
  • Author(s): 藤田 遼, 石川 晃, 横山 哲也, Michael Garcia
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] ペルム紀パンサラッサ海Sr収支変化 (2020)
  • Author(s): 可児 智美, 磯崎 行雄, 三澤 啓司, 石川 晃, 米田 成一
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] 太平洋赤色泥における白亜紀―古第三紀境界付近の古地磁気記録 (2020)
  • Author(s): 臼井 洋一, 山崎 俊嗣, 大田 隼一郎, 佐藤 峰南, 石川 晃
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] Exploring the World's Largest LIP: Testing the Ontong Java Nui hypothesis (2020)
  • Author(s): Sano Takashi, Tejada Maria Luisa, Neal Clive, Coffin Millard, Nakanishi Masao, Michael Peter, Geldmacher Jorg, Hanyu Takeshi, Miura Seiichi, Timm Christian, Koppers Anthony, Suetsugu Daisuke, Tonegawa Takashi, Ishikawa Akira, Shimizu Kenji, Castillo Paterno
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] 10^13Ω抵抗付増幅器を使用したTE-DS-TIMSによる極微量鉛同位体分析における時定数補正について (2020)
  • Author(s): 深海雄介、飛田南斗、横山哲也、鈴木勝彦
  • Organizer: 日本地球化学会年会
• [Presentation] 隕石の重元素同位体異常にまつわる最近の話題 (2020)
  • Author(s): 横山哲也
  • Organizer: 研究会「星の錬金術から銀河考古学へ」
  • Invited
• [Presentation] Recent progress in the application of nucleosynthetic isotope anomalies in meteorites (2020)
  • Author(s): Yokoyama, T.
  • Organizer: ISAS Colloquium
  • Invited
• [Presentation] マントル捕獲岩中の鉱物一粒ごとのハロゲン分析から見出された、大陸下マントルにおけるハロゲン組成の不均質 (2020)
  • Author(s): 角野浩史, 仁木創太, Burgess R., 小林真大, 鍵裕之
  • Organizer: 日本地球化学会年会
• [Presentation] 霧島火山群における火山ガスのヘリウム同位体比の時空間変動 (2020)
  • Author(s): 角野浩史, 外山浩太郎, 小長谷智哉, 滝口孝寛, 大場武, 谷口無我
  • Organizer: 日本火山学会
• [Presentation] Multiple halogen components in subcontinental lithospheric mantle revealed by single-grain analysis of mantle-derived xenoliths (2020)
  • Author(s): Sumino H., Niki S., Burgess R., Kobayashi M. and Kagi H
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] 霧島火山群における火山ガスのヘリウム同位体比の時空間変動 (2020)
  • Author(s): 角野浩史, 外山浩太郎, 大場武, 谷口無我
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] 草津白根火山の火山ガスのヘリウム同位体比 (2020)
  • Author(s): 角野浩史, 外山浩太郎, 大場武, 谷口無我, 寺田 暁彦
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] Determination of noble gas partition coefficients between metal and silicate melts under high-pressure and high-temperature conditions (2020)
  • Author(s): Sumino H., Tanaka T., Kuwahara H., Kishi S., Mibe K., Nomura R. and Kagi H.
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] 3H-3He地下水年代測定手法の開発と福島県沿岸部地下水への応用 (2020)
  • Author(s): 角野浩史, 野俣直樹, 桜庭真依子
  • Organizer: JpGU-AGU Joint Meeting
• [Presentation] Multiple halogen components in subcontinental lithospheric mantle (2020)
  • Author(s): Sumino H., Niki S., Kobayashi M., Kagi H. and Burgess R.
  • Organizer: Goldschmidt Conference
  • Int'l Joint Research
• [Presentation] Sulfur species in ALH 84001 carbonates constrain conditions of liquid water on ancient Mars. (2020)
  • Author(s): Kajitani, I., Nakada, R., Koike, M., Tanabe, G., Usui, T., Matsu'ura, F., Fukushi, K., Yokoyama, T.
  • Organizer: Lunar and Planetary Science Conference, The Woodlands, USA.
  • Int'l Joint Research
• [Presentation] オスミウム同位体と強親鉄性元素組成からみたハワイ諸島、カウラ島産マントル捕獲岩の起源 (2019)
  • Author(s): 藤田遼、石川晃、横山哲也、Michael Garcia
  • Organizer: 日本地球惑星科学連合2019年大会、幕張
• [Presentation] 27億年前のベリングウェーコマチアイトの質量非依存硫黄同位体分別：太古代における地殻物質のリサイクル (2019)
  • Author(s): 久保田勇祐、上野雄一郎、清水健二、松浦史宏、石川晃
  • Organizer: 日本地球惑星科学連合2019年大会、幕張
• [Presentation] δ88Sr and 87Sr/86Sr records of the Middle-Late Permian seawater: mass extinction-relevant change in ocean Sr budget (2019)
  • Author(s): 可児智美、磯崎行雄、三澤啓司、石川晃、米田成一
  • Organizer: 日本地球惑星科学連合2019年大会、幕張
• [Presentation] ペルム紀／三畳紀境界に置ける地球外3Heフラックスの増加イベント (2019)
  • Author(s): 尾上哲治、高畑直人、佐藤穂南、石川晃、曽田勝仁、佐野有司、磯崎行雄
  • Organizer: 日本地球惑星科学連合2019年大会、幕張
• [Presentation] Ancient, highly depleted mantle constrained by Re-Os isotope and highly siderophile element compositions of French Polynesian xenoliths (2019)
  • Author(s): Akizawa, N., Ishikawa, A., Suzuki, K., Kogiso, T.
  • Organizer: JpGU 2019, Makuhari, Japan
• [Presentation] Evaluation of digestion methods for molybdenum concentration analysis for geological materials (2019)
  • Author(s): 六鹿悠、石川晃、横山哲也
  • Organizer: 日本地球惑星科学連合2019年大会、幕張
• [Presentation] Hf-W Dating of Main-Group Pallasites (2019)
  • Author(s): Homma, Y., Iizuka, T., Ishikawa, A.
  • Organizer: Goldschmidt Conference, Barcelona, Spain
  • Int'l Joint Research
• [Presentation] Enhanced flux of extraterrestrial 3He across the Permian-Triassic boundary in pelagic deep-sea chert (2019)
  • Author(s): Onoue, T., Takahata, N., Sato, H., Ishikawa, A. ,Soda, K., Sano, Y., Isozaki, Y.
  • Organizer: Large Meteorite Impacts and Planetary Evolution VI, Brasilia, Brazil
  • Int'l Joint Research
• [Presentation] Extraterrestrial impact recorded in the Upper Triassic deep-sea deposits from Japan (2019)
  • Author(s): Sato, H., Nozaki, T., Ishikawa, A., Onoue, T., Kimura, J.-I., Chang, Q.
  • Organizer: Large Meteorite Impacts and Planetary Evolution VII, Brasilia, Brazil
  • Int'l Joint Research
• [Presentation] チチュルブクレーター内のK-Pg境界掘削試料を用いた白金族元素およびオスミウム同位体組成 (2019)
  • Author(s): 佐藤峰南、石川晃、Ferriere Ludovic、Morgan Joanna、Gulick Sean、IODP-ICDP Expedition 364 Scientists
  • Organizer: 日本地質学会第126年学術大会、山口
• [Presentation] Aitutaki・Rarotonga島(クック諸島)産マントル捕獲岩の地球化学的特徴 (2019)
  • Author(s): 大嶋ちひろ、秋澤紀克、石川晃、石井輝秋、小木曽哲
  • Organizer: 日本地球化学学会第66回年会、東京
• [Presentation] 二次イオン質量分析法を用いた斑レイ岩中の輝石の水素同位体比：マントルの水素同位体進化の解明に向けて (2019)
  • Author(s): 八木晃、上野雄一郎、伊藤正一、石川晃、渋谷岳造、吉田尚弘
  • Organizer: 日本地球化学学会第66回年会、東京
• [Presentation] Shear wave upper mantle structure beneath the Ontong Java Plateau (2019)
  • Author(s): Isse, T., Suetsugu, D., Ishikawa, A., Shiobara, H., Sugioka, H., Ito, A., Kawano, Y., Yoshizawa, K., Ishihara, Y., Tanaka, S., Obayashi, M., Tonegawa, T., Yoshimitsu, J., Kobayashi, T.
  • Organizer: AGU fall meeting, San Francisco, USA
  • Int'l Joint Research
• [Presentation] Sulfur isotope anomaly of igneous sulfides in the Belingwe komatiites implication for the onset of subduction (2019)
  • Author(s): Kubota, Y., Ueno, Y., Shimizu, K., Ishikawa, A., Matsu'ura, F.
  • Organizer: AGU fall meeting, San Francisco, USA
  • Int'l Joint Research
• [Presentation] New genesis of felsic magma: the unmixing of slab-derived supercritical liquid. (2019)
  • Author(s): Taniuchi, H., Kuritani, T., Yokoyama, T., Nakamura, E.
  • Organizer: AGU fall meeting,
  • Int'l Joint Research
• [Presentation] Chemically defining the building blocks of the Earth. (2019)
  • Author(s): Yoshizaki, T., Ash, R., Yokoyama, T., Lipella, M., McDonough, W.F.
  • Organizer: Goldschmidt Conference, Barcelona, Spain
  • Int'l Joint Research
• [Presentation] Nucleosynthetic Sr and Nd isotopic anomalies of bulk differentiated meteorites (2019)
  • Author(s): Fukai, R., Sugimoto, K., Yokoyama, T.
  • Organizer: Goldschmidt Conference, Barcelona, Spain
  • Int'l Joint Research
• [Presentation] Separation of heavy lanthanoids by flash column chromatography for precise determination of Er and Yb isotope compositions in rock samples. (2019)
  • Author(s): Yokoyama, T.
  • Organizer: 4th China-Japan Joint Forum on Geochemistry and Cosmochemistry, Hangzhou, China
  • Int'l Joint Research / Invited
• [Presentation] Origin of mantle xenoliths from Kaula Island, Hawaii:Constrains from Os isotope and highly siderophile element compositions (2019)
  • Author(s): Fujita, R., Ishikawa, A., Yokoyama, T., Garcia, M. O.
  • Organizer: JpGU 2019, Makuhari, Japan
• [Presentation] Evaluation of digestion methods for Molybdenum concentration analysis for geological materials (2019)
  • Author(s): Mutsushika, Y., Ishikawa, A., Yokoyama, T.
  • Organizer: JpGU 2019, Makuhari, Japan
• [Presentation] Hydrous felsic magma generated by unmixing of slab-derived supercritical liquid: evidence from Rishiri Volcano, Kuril Arc (2019)
  • Author(s): Taniuchi, H., Kuritani, T., Yokoyama, T., Nakamura, E., Nakagawa, M.
  • Organizer: JpGU 2019, Makuhari, Japan
• [Presentation] Finding of oxidized sulfur species in carbonates from a Martian meteorite Allan Hills 84001 using μ-XANES (2019)
  • Author(s): Kajitani, I., Tanage, G., Nakada, Usui, T., R., Koike, M., Matsu'ura, F., Yokoyama, T.
  • Organizer: JpGU 2019, Makuhari, Japan
• [Presentation] Preliminary analysis of nucleosynthetic Sr isotope anomalies in amoeboid olivine aggregates from the Allende meteorite (2019)
  • Author(s): Masuda, Y., Yokoyama, T., Myojo, K., Okabayashi, S.
  • Organizer: JpGU 2019, Makuhari, Japan
• [Presentation] Iron isotopic compositions of Luna 16, 20, 24 soils (2019)
  • Author(s): Okabayashi, S., Yokoyama, T., Hirata, T., Terakado, K., Galimov, E.
  • Organizer: JpGU 2019, Makuhari, Japan
  • Invited
• [Presentation] Geochemistry and chronology of five howardites, Y-7308, Y-003125, Y-000428, NWA 1929, and NWA 6920 (2019)
  • Author(s): Okada, M., Haba, M.K., Nagao, K., Yokoyama, T.
  • Organizer: JpGU 2019, Makuhari, Japan
• [Presentation] Nucleosynthetic Sr and Nd isotopic anomalies of bulk differentiated meteorites (2019)
  • Author(s): Fukai, R., Sugimoto, K., Yokoyama, T.
  • Organizer: JpGU 2019, Makuhari, Japan
• [Presentation] Allende隕石中の難揮発性包有物にみられる核合成起源のSr同位体異常 (2019)
  • Author(s): 増田雄樹、横山哲也、明星邦弘
  • Organizer: 日本地球化学学会第66回年会、東京
• [Presentation] 10＾13Ω抵抗付増幅器を使用したTE-DS-TIMSによる極微量鉛同位体分析手法の開発 (2019)
  • Author(s): 深海雄介、飛田南斗、横山哲也、鈴木勝彦
  • Organizer: 日本地球化学学会第66回年会、東京
• [Presentation] 南西太平洋ラウ海盆の遠洋性堆積物から復元された第四紀海水のOs同位体比とその全球的気候変動に対する示唆 (2019)
  • Author(s): 桑原佑典，安川和孝，藤永公一郎，野崎達生，大田隼一郎，佐藤峰南，木村純一，中村謙太郎，加藤泰浩
  • Organizer: 日本地球惑星科学連合2019年大会、幕張
• [Presentation] Re-Os isotope and PGE signatures of the deep-sea deposits from Japanese accretionary complex: Implications for the Late Triassic impact event (2019)
  • Author(s): Sato, H., Nozaki, T., Ishikawa, A., Onoue, T., Kimura, J.-I., Chang, Q., Suzuki, K.
  • Organizer: 3rd International Congress on Stratigraphy strati 2019, Milano, Italy
  • Int'l Joint Research
• [Presentation] 氷期-間氷期サイクルにおける固体地球のフィードバック応答：海洋Os同位体マスバランスに基づく制約 (2019)
  • Author(s): 桑原佑典、安川和孝、藤永公一郎、野崎達生、大田隼一郎、佐藤峰南、木村純一、中村謙太郎、加藤泰浩
  • Organizer: 日本地質学会第126年学術大会、山口
• [Presentation] 気化法とCDDを用いた高確度・高精度・迅速オスミウム同位体比分析手法の開発 (2019)
  • Author(s): 大田隼一郎、佐藤峰南、野崎達生、芦田果奈
  • Organizer: 日本地球化学学会第66回年会、東京
• [Presentation] かんらん石一粒ごとの希ガス・ハロゲン分析 (2019)
  • Author(s): 角野浩史、仁木創太、鍵裕之、平田岳史、小林真大、Burgess R.、Ballentine C.J.
  • Organizer: 日本質量分析学会同位体比部会、登別
• [Presentation] Noble gases in olivine melt inclusions reveal degassing state of magmas in Deception Island (Antarctica) (2019)
  • Author(s): Sumino H., Alvarez-valero A.M., Okumura S., Nunez-guerrero E., Geyer A.
  • Organizer: Goldschmidt Conference, Barcelona, Spain
  • Int'l Joint Research
• [Presentation] オスミウム同位体組成と強親鉄性元素組成からみたハワイ諸島産マントル捕獲岩の起源 (2019)
  • Author(s): 藤田遼、石川晃、横山哲也、Michael Garcia
  • Organizer: 日本質量分析学会同位体比部会、登別