Ice sheet fluctuations in the past and global climate changes

2016 Fiscal Year Annual Research Report

• Project/Area Number: 26247085
• Research Institution: The University of Tokyo
• Principal Investigator: 横山 祐典 東京大学, 大気海洋研究所, 教授 (10359648)
• Co-Investigator(Kenkyū-buntansha): 大河内 直彦 国立研究開発法人海洋研究開発機構, 生物地球化学研究分野, 分野長 (00281832) ; 池原 実 高知大学, 教育研究部自然科学系理学部門, 教授 (90335919)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 南極 / 古気候

Outline of Annual Research Achievements

地球の気候システムを構成する重要なコンポーネントであるにもかかわらず、その挙動の復元が難しかった棚氷について、新しく２つの方法を提案し、世界最大のロス棚氷がこれまで考えられていたよりも１万年もわかいタイミングで大崩壊をしていたことを新しく発見した。棚氷の平面的な位置を復元するために、大気中で生成される宇宙船生成核種を用い、年代を決定するために特定有機化合物の放射性炭素年代測定をを行った。前者はベリリウム-10を用い、棚氷が当該地域から後退した後にはエアロゾルなどに吸着されて降下してくる量が圧倒的に増えることを発見し、応用した。一方そのタイミングについては、特定有機化合物の抽出法の開発と、ごく微量での加速器質量分析法の開発を行うことで達成できた。内容はPNAS（アメリカ科学アカデミー紀要）に発表し、アメリカ地球物理学会では招待講演として講演を行った。コミュニティの反応は良く、早速アメリカやイギリス、オーストラリアなどのグループが同じような方法を適用するべく、研究を開始した旨連絡が入ってきている。また、氷期に存在した氷床量の復元を行うため、オーストラリア北西部ボナパート湾の堆積物と地球物理学的モデルを使った研究や、固体地球の変形モデルを使って求めたJ2-dotを用いた研究を実施したが、下部マントルの粘性率はこれまで広く使われていた値よりも大きく、また直近の氷期の最大氷床量は、海水準に換算して１２０－１３０mほどであったことを明らかにした。このことは、ミッシングアイス問題の解決法として、トータルの氷床量が１００mを切るのではという一つの仮説の可能性を否定し、個別の氷床量の見積もりを高精度に行う必要を示唆したという点で極めて重要な結果である。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] Rice University/University of California Irvine/University of California Santa Barbara(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: Rice University/University of California Irvine/University of California Santa Barbara
  • # of Other Institutions: 5
• [Int'l Joint Research] The Australian National University/University of Sydney/University of Adelaide(Australia)
  • Country Name: Australia
  • Counterpart Institution: The Australian National University/University of Sydney/University of Adelaide
  • # of Other Institutions: 3
• [Int'l Joint Research] Ghent University/Geological Survey of Belgium/University of Liege(Belgium)
  • Country Name: Belgium
  • Counterpart Institution: Ghent University/Geological Survey of Belgium/University of Liege
  • # of Other Institutions: 1
• [Int'l Joint Research] University of Cologne/University of Bremen(Germany)
  • Country Name: Germany
  • Counterpart Institution: University of Cologne/University of Bremen
• [Int'l Joint Research] Durham University/Newcastle University(英国)
  • Country Name: UNITED KINGDOM
  • Counterpart Institution: Durham University/Newcastle University
• [Int'l Joint Research]
  • # of Other Countries: 8
• [Journal Article] Widespread collapse of the Ross Sea Ice Shelf during the late Holocene (2016)
  • Author(s): Yokoyama, Y., Anderson, J.B., Yamane, M., Simkins, L.M., Miyairi, Y., Yamazaki, T., Koizumi, M., Suga, H., Kusahara, K., Protiro, L., Hasumi, H., Southon, J.R., and Ohkouchi, N.
  • Journal Title: PNAS (Proceedings of the National Academy of Science, USA) Volume: 113 Pages: 2354-2359
  • DOI: 10.1073/pnas.1516908113
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Total meltwater volume since the Last Glacial Maximum and viscosity structure of Earth's mantle inferred from relative sea level changes at Barbados and Bonaparte Gulf and GIA induced J2-dot (2016)
  • Author(s): Nakada, M., Okuno, J., and Yokoyama, Y.
  • Journal Title: Geophysical Journal International Volume: 204 Pages: 1237-1253
  • DOI: 10.1093/gji/ggv520
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Holocene Antarctic melting and lithospheric uplift history of the southern Okinawa trough inferred from mid- to late-Holocene sea level in Iriomote Island, Ryukyu, Japan. (2016)
  • Author(s): Yokoyama, Y., Maeda, Y., Okuno, J., Miyairi, Y., and Kosuge, T.
  • Journal Title: Quaternary International Volume: 397 Pages: 342-348
  • DOI: 10.1016/j.quaint.2015.03.030
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Relationship between early summer precipitation in Japan and the El Nino-Southern and Pacific Decadal Oscillations over the past 400 years. (2016)
  • Author(s): Sakashita, W., Yokoyama, Y., Miyahara, H., Yamaguchi, Y.T., Aze, T., Obrochta, S.P., and Nakatsuka, T.
  • Journal Title: Quaternary International Volume: 397 Pages: 300-306
  • DOI: 10.1016/j.quaint.2015.05.054
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Surface nitrate utilization in the Bering Sea since 180 ka BP: Insight from sedimentary nitrogen isotopes. (2016)
  • Author(s): Riethdorf, J.-R., Thibodeau, B., Ikehara, M. Nurnberg, D., Max, L., Tiedemann, R., and Yokoyama, Y.
  • Journal Title: Deep Sea Research part II Volume: 125-126 Pages: 300-306
  • DOI: 10.1016/j.dsr2.2015.03.007
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Weak monsoon event at 4.2 ka recorded in sediment from Lake Rara, the Himalayas (2016)
  • Author(s): Nakamura, A., Yokoyama, Y., Maemoku, H., Yagi, H., Okamura, M., Matsuoka, H., Miyake, N., Osada, T., Adhikari, D.P., Dangol, V., Ikehara, M., Miyairi, Y., and Matsuzaki, H.
  • Journal Title: Quaternary International Volume: 397 Pages: 349-359
  • DOI: 10.1016/j.quaint.2015.05.053
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Holocene geohazard events on the southern Izu Peninsula, central Japan (2016)
  • Author(s): Kitamura, A., Ohashi, Y., Ishibashi, H., Miyairi, Y., Yokoyama, Y., Ikuta, R., Ito, Y., Ikeda, M., and Shimano, T.
  • Journal Title: Quaternary International Volume: 397 Pages: 541-554
  • DOI: 10.1016/j.quaint.2015.04.021
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Reappraisal of sea-level lowstand during the Last Glacial Maximum observed in the Bonaparte Gulf sediments, northwestern Austrlia (2016)
  • Author(s): Ishiwa, T., Yokoyama, Y., Miyairi, Y., Obrochta, S., Sasaki, T., Kitamura, A., Suzuki, A., Ikehara, M., Ikehara, K., Kimono, K., Bourget, J., and Matsuzaki, H.
  • Journal Title: Quaternary International Volume: 397 Pages: 373-379
  • DOI: 10.1016/j.quaint.2015.03.032
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Fossil otoliths from the Gulf of Kutch, Western India, as a paleo-archive for the mid- to late-Holocene environment. (2016)
  • Author(s): Amekawa, S., Kubota, K., Miyairi, Y., Seki, A., Kawakubo, Y., Sakai, S., Ajithprasad, P., Maemoku, H., Osa.da, T., and Yokoyama, Y
  • Journal Title: Quaternary International Volume: 397 Pages: 281-288
  • DOI: 10.1016/j.quaint.2015.07.006
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] A diatom-inferred record of lake variability during the last 900 years in Luzow-Holm Bay, East Antarctica (2016)
  • Author(s): Rudd, R.C., Tyler, J.J., Tibby, J., Yokoyama, Y., Tavernier, I., Verheyen E., Fukui, M., and Takano, Y.
  • Journal Title: Journal of Quaternary Research Volume: 31 Pages: 114-125
  • DOI: 10.1002/jqs.2845
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Two-step rise of atmospheric oxygen linked to the growth of continents (2016)
  • Author(s): Lee, C.-T., Yeung, L.Y., McKenzie, N.R., Yokoyama, Y., Ozaki, K., and Lenardic, A.
  • Journal Title: Nature Geoscience Volume: 9 Pages: 417-424
  • DOI: 10.1038/ngeo2707
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A systematic review of geological evidence for Holocene earthquakes and tsunamis along the Nankai-Suruga Trough, Japan. (2016)
  • Author(s): Garrett, E., Fujiwara, O., Garrett, P., Hayvaert, V.M.A., Shishikura, M., Yokoyama, Y., Hubert-Ferrari, A., Bruckner, H., Nakamura, A., De Batist, M., and QuakeRecNankai team
  • Journal Title: Earth Science Reviews Volume: 159 Pages: 337-357
  • DOI: 10.1016/j.earscirev.2016.06.011
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Linking the distribution of microbial deposits from the Great Salt Lake (Utah, USA) to tectonic and climatic processes (2016)
  • Author(s): Bouton, A., Vennin, E., Boulle, J., Pace, A., Bourillot, R., Thomazo, C., Bayard, A., Dsaubliaux, G., Goslar, T., Yokoyama, Y., Dupraz, C., and Visscher, P.T.
  • Journal Title: Biogeosciences Volume: 13 Pages: 5511-5526
  • DOI: 10.5194/bg-13-5511-2016
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Deep Sea corals feel the flow (2016)
  • Author(s): Yokoyama, Y., and Esat, T.M.
  • Journal Title: Science Volume: 354 Pages: 550-551
  • DOI: 10.1126/science.aak9817
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Sedimentary environmental changes from late Quaternary sea-level change in the Bonaparte Gulf, northwestern Australia (2016)
  • Author(s): Ishiwa, T., Yokoyama, Y., Miyairi, Y., Ikehara, M., and Obrochta, S.
  • Journal Title: Geoscience Letters Volume: 3 Pages: 33
  • DOI: 10.1186/s40562-016-0065-0
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Highstand shelf fans: The role of buoyancy reversal in the deposition of a new type of shelf sand body (2016)
  • Author(s): Steel, E., Simms, A.R., Warrick, J., and Yokoyama, Y.
  • Journal Title: Geological Society of America Bulletin Volume: 128 Pages: 1717-1724
  • DOI: 10.1130/B31438.1
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The Pliocene-Pleistocene transition had dual effects on North American migratory bird speciation (2016)
  • Author(s): Hirase, S., Yokoyama, Y., Lee, C.-T., and Iwasaki, W.
  • Journal Title: Palaeogeography Palaeoclimatology Palaeoecology Volume: 462 Pages: 85-91
  • DOI: 10.1016/j.palaeo.2016.09.006
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] Development and Application of Sr/Ca-δ18O-Sea Surface Temperature calibrations for Last Glacial Maximum-Aged Isopora corals in the Great Barrier Reef (2016)
  • Author(s): Brenner, L.D., Linsley, B.K., Potts, D.C., Felis, T., McGregor, H.V., Gagan, M.K., Inoue, M., Tudhope, A.W., Esat, T.M., Thompson, W.G., Tiwari, M., Fallon, S., Humlet, M., Yokoyama, Y., and Webster, J.W.
  • Organizer: American Geophysical Union Fall Meeting 2016
  • Place of Presentation: Moscone Convention Center, SanFrancisco, USA
  • Year and Date: 2016-12-16 – 2016-12-16
  • Int'l Joint Research
• [Presentation] Post-LGM Retreat History in Ross Sea Reflects Changing Controls on Marine Ice Sheet Behavior (2016)
  • Author(s): Halberstadt, A.R., Simkins, L.M., Anderson, J.B., Pronthro, L.O., Demet, B.P., Greenwood, S.L., and Yokyoyama, Y.
  • Organizer: American Geophysical Union Fall Meeting 2016
  • Place of Presentation: Moscone Convention Center, SanFrancisco, USA
  • Year and Date: 2016-12-16 – 2016-12-16
  • Int'l Joint Research
• [Presentation] Oceanographic Influences on Ice Shelves and Drainage in the Amundsen Sea (2016)
  • Author(s): Minzoni, R.T., Anderson, J.B., Majewski, W., Yokoyama, Y., Fernandez, R., and Jakobsson, M.
  • Organizer: American Geophysical Union Fall Meeting 2016
  • Place of Presentation: Moscone Convention Center, SanFrancisco, USA
  • Year and Date: 2016-12-16 – 2016-12-16
  • Int'l Joint Research
• [Presentation] Millennial-scale variations of an East Antarctic outlet glacier during the Last Glaciation (2016)
  • Author(s): Shevenell, A., Guitard, M., Rosenheim, B.E., Luvender, A., and Yokoyama, Y.
  • Organizer: American Geophysical Union Fall Meeting 2016
  • Place of Presentation: Moscone Convention Center, SanFrancisco, USA
  • Year and Date: 2016-12-12 – 2016-12-12
  • Int'l Joint Research
• [Presentation] Lake deposits record evidence of large post-1505 AD earthquakes in western Nepal (2016)
  • Author(s): Ghazoui, Z., Betrand, S., Vanneste K., Yokoyama, Y., van der Beek, P., Nomade, J., and Gajurel, A.
  • Organizer: American Geophysical Union Fall Meeting 2016
  • Place of Presentation: Moscone Convention Center, SanFrancisco, USA
  • Year and Date: 2016-12-12 – 2016-12-12
  • Int'l Joint Research
• [Presentation] Widespread collapse of the Ross Ice Shelf during the late Holocene reconstructed from compound specific C-14 and meteoric Be-10 (2016)
  • Author(s): Yokoyama, Y., Anderson, J.B., Yamane, M., Simkins, L.M., Miyairi, Y., Yamazaki, T., Koizumi, M., Kusahara, K., Suga, H., Protiro, L.O., Hasumi, H., Southon, J.R., Ohkouchi, N.
  • Organizer: American Geophysical Union Fall Meeting 2016
  • Place of Presentation: Moscone Convention Center, SanFrancisco, USA
  • Year and Date: 2016-12-12 – 2016-12-12
  • Int'l Joint Research / Invited
• [Presentation] 白亜紀ー古第三紀の温室期の気候と陸弧島弧分布変遷 (2016)
  • Author(s): 横山祐典、Lee, C.-T.
  • Organizer: 第2回 地球環境史学会年会
  • Place of Presentation: 早稲田大学、東京都新宿区
  • Year and Date: 2016-11-27 – 2016-11-27
• [Presentation] 宇宙線生成核種と地球化学分析を組み合わせた氷床変動と気候変動研究 (2016)
  • Author(s): 横山祐典
  • Organizer: 日本第四紀学会2016年大会
  • Place of Presentation: 千葉大学、千葉県千葉市
  • Year and Date: 2016-09-17 – 2016-09-17
  • Invited
• [Presentation] 特定有機化合物C-14と大気生成Be-10により明らかになった過去の世界最大のロス海棚氷崩壊イ ベント (2016)
  • Author(s): 横山祐典、Anderson, J.B., 宮入陽介、山根雅子、菅寿美、Simkins, L., 大河内直彦
  • Organizer: 2016年度日本地球化学会 第63回年会
  • Place of Presentation: 大阪市立大学、大阪府大阪市
  • Year and Date: 2016-09-14 – 2016-09-14
• [Presentation] 海 洋酸性化がサンゴ石灰化に与える影響～父島・喜界島から得られたハマサンゴのホウ素同位体分析 (2016)
  • Author(s): 窪田 薫, 横山 祐典, 石川 剛志, 鈴木 淳, 石井 雅男
  • Organizer: 2016年度日本地球化学会 第63回年会
  • Place of Presentation: 大阪市立大学、大阪府大阪市
  • Year and Date: 2016-09-14 – 2016-09-14
  • Invited
• [Presentation] Understanding the palaeoenvironmental setting of Mid- to Late Holocene coastal archaeological sites: an example from Japan (2016)
  • Author(s): Yokoyama, Y.
  • Organizer: Landscape Archaeology Conference 2016
  • Place of Presentation: Uppsala, Sweden
  • Year and Date: 2016-08-23 – 2016-08-23
  • Int'l Joint Research / Invited
• [Presentation] Geochemical Analyses of Fossil Shells of Gafrarium Tumidum Collected from Tongatapu Island and its Application for Paleoceanography and Archaeology during the Holocene (2016)
  • Author(s): Fukuyo, N., Kubota, K., Clark, G., Miyairihi, Y., Tsuzuki, K., Shirai, K., Higuchi, T., and Yokoyama, Y.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-30 – 2016-06-30
  • Int'l Joint Research
• [Presentation] Incorporation in Culture High Mg-Calcite Benthic Foraminifera Under Controlled pCO2: A Multi-Elemental Perspective (2016)
  • Author(s): Not, C., Thibodeau, B., and Yokoyama, Y.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横山、神奈川県横浜市
  • Year and Date: 2016-06-30 – 2016-06-30
  • Int'l Joint Research
• [Presentation] Trace Element Analysis of Individual Detrital Carbonate (Henrich) Grains (2016)
  • Author(s): Obrochta, S., Hodell, D., Seki, A., Yokoyama, Y., Aze, T., and Tsuzuki, K.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-30 – 2016-06-30
  • Int'l Joint Research
• [Presentation] Carbonate Cement as an Indicator of Sea Level during the Last Glacial Period: IODP Exp. 325, Great Barrier Reef Environmental Changes (2016)
  • Author(s): Kan, H., Fujita, K., Yokoyama, Y., Suzuki, A., Miyairi, Y., and Webster, J.M.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横山、神奈川県横浜市
  • Year and Date: 2016-06-30 – 2016-06-30
  • Int'l Joint Research
• [Presentation] Δ14C Variability of the Kuroshio Region Reconstructed from Corals (2016)
  • Author(s): Hirabayashi, S., Yokoyama, Y., Suzuki, A., Miyairi, Y., and Aze, T.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-30 – 2016-06-30
  • Int'l Joint Research
• [Presentation] Rapid Decline in pH of Coral Calcification Fluid due to Incorporation of Anthropogenic CO2 (2016)
  • Author(s): Kubota, K., Yokoyama, Y., Ishikawa, T., Suzuki, A., and Ishii, M.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-30 – 2016-06-30
  • Int'l Joint Research
• [Presentation] Preliminary Results of Radiocarbon Dating of Amino Acids: A Novel Tool for Biogeochemistry and Chronology (2016)
  • Author(s): Yamane, M., Yokoyama, Y., Miyairi, Y., Suga, H., Matsuzaki, H., Dunbar, R., and Ohkouchi, N.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-29 – 2016-06-29
  • Int'l Joint Research
• [Presentation] Regional Radiocarbon Marine Reservoir Ages in Hokkaido, Japan Reconstructed from Pre-Bomb Kelp Specimens (2016)
  • Author(s): Miyairi, Y., Yokoyama, Y., Abe, T., and Matsuzaki, H.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-29 – 2016-06-29
  • Int'l Joint Research
• [Presentation] Isolation and Purification of Individual Amino Acids by HPLC for Precise Small-Scale Radiocarbon Dating of Archaeological Bones (2016)
  • Author(s): Itahashi, Y., Takano, Y., Chikaraishi, Y., Ogawa, N., Ohkouchi, N., Yamane, M., Yokoyama, Y., Nagata, T., and Yoneda, M.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-29 – 2016-06-29
  • Int'l Joint Research
• [Presentation] Paleoenvironmental Reconstructions for the Bonaparte Gulf, Australia Using 14C Age Differences between Molluscs and Organic Matter (2016)
  • Author(s): Ishiwa, T., Yokoyama, Y., Miyairi, Y., Ikehara, M., Obrochta, S., Sasaki, T., and Kitamura, A.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-29 – 2016-06-29
  • Int'l Joint Research
• [Presentation] Meteoric 10Be and Compound Specifc 14C Revealed Timing of Colossal Antarctic Ice-Shelf Collapse (2016)
  • Author(s): Yokoyama, Y., Anderson, J.B., Yamane, M., Simkins, L., Miyairi, Y., Yamazaki, T., Koizuki, M., Suga, H., Kusahara, K., Protiro, L., Hasumi, H., Southon, J.R., and Ohkouchi, N.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-29 – 2016-06-29
  • Int'l Joint Research
• [Presentation] Tracing the Iodine Source of Marine Biota Using Iodine 129 Isotopic Ratio (2016)
  • Author(s): Kusuno, H., Matsuzaki, H., Nagata, T., Miyairi, Y., Yokoyama, Y., Ohkouchi, N., Tanaka, E., Kawamoto, M., and Tokuyama, H.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-29 – 2016-06-29
  • Int'l Joint Research
• [Presentation] Assessing the Roles of Coral-Algal Symbiosis in Coral Calcification Based on Culture Experiments Using Symbiont and Aposymbiont Primary Polyps (2016)
  • Author(s): Inoue, M., Gussone, N., Nakamura, T., Yokoyama, Y., Suzuki, A., Sakai, K., and Kawabata, H.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: パシフィコ横浜、神奈川県横浜市
  • Year and Date: 2016-06-28 – 2016-06-28
  • Int'l Joint Research
• [Presentation] 浜名湖と富士五湖堆積物を用いた津波および古地震研究の展望 (2016)
  • Author(s): 中村 淳路, Boes Evelien, Bruckner Helmut, De Batist Marc, 藤原 治, Garrett Edmund, Heyvaert Vanessa, Hubert-Ferrari Aurelia, Lamair Laura, 宮入 陽介, オブラクタ スティーブン, 宍倉 正展, 山本 真也, 横山 祐典, The QuakeRecNankai team
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-26 – 2016-05-26
• [Presentation] 偽礫を用いた津波堆積物の年代制約 (2016)
  • Author(s): 石澤 尭史, 後藤 和久, 横山 祐典, 宮入 陽介, 沢田 近子, 高田 圭太
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-26 – 2016-05-26
• [Presentation] 炭素窒素安定同位体,放射性炭素同位体から明らかにした熱水噴出域のメイオファウナの食性と熱水域での分布パターンとの関連 (2016)
  • Author(s): 野牧 秀隆, 上島 優貴, 小川 奈々子, ,山根 雅子, 渡部 裕美, 瀬之口 れいな, 北橋 倫, 横 山 祐典, 大河内 直彦, 嶋永 元裕
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-26 – 2016-05-26
• [Presentation] 北海道北部頓別平野周辺の沿岸部における完新世の砂丘および沖積層のルミネッセンス年代 (2016)
  • Author(s): 近藤 玲介, 重野 聖之, 横田 彰宏, 塚本 すみ子, 乾 茂年, 宮入 陽介, 横山 祐典, 冨士田 裕子, 竹村 貴人, 竹下 千栄子, 坂本 竜彦, 右代 啓視
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-26 – 2016-05-26
• [Presentation] 海洋酸素同位体ステージ3の海水準低下によるBonaparte湾の堆積環境変化 (2016)
  • Author(s): 石輪 健樹, 横山 祐典, 宮入 陽介, オブラクタ スティーブン, 池原 実, 佐々木 猛智, 上原 克人, 北村 晃寿
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-24 – 2016-05-24
• [Presentation] 珪藻遺骸を用いた東シナ海における最終氷期以降の表層水復元 (2016)
  • Author(s): 代田 景子, 岡崎 裕典, 今野 進, 久保田 好美, 横山 祐典, 小田 啓邦
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-24 – 2016-05-24
• [Presentation] 西部赤道太平洋の海底堆積物における堆積残留磁化獲得深度の検討 (2016)
  • Author(s): 櫻本 晋洋, 山崎 俊嗣, 木元 克典, 宮入 陽介, 横山 祐典
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-24 – 2016-05-24
• [Presentation] 全有機炭素の放射性炭素年代連続測定による海底イベント堆積物認定の試み (2016)
  • Author(s): 大村 亜希子, 宮入 陽介, 平林 頌子, 横山 祐典, 芦 寿一郎
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-23 – 2016-05-23
• [Presentation] A humid climate of the last stage of the Little Ice Age in central Japan reconstructed using oxygen isotopes from tree-ring (2016)
  • Author(s): 坂下 渉, 宮原 ひろ子, 横山 祐典, 中塚 武, 阿瀬 貴博, 星野 安治, 大山 幹成, 米延 仁志, 竹村 恵二
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-23 – 2016-05-23
• [Presentation] 宇宙線生成放射性核種によるチベット高原北東縁共和盆地の埋積過程の解明 (2016)
  • Author(s): 白濱 吉起, 中村 淳路, 宮入 陽介, 何 宏林, 狩野 謙一, 岡田 真介, 横山 祐典, 池田 安隆
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-23 – 2016-05-23
• [Presentation] Biogeochemistry and subglacial meltwater limnology in East Antarctica: insight from microbial response with subglacial silica input in a perennially ice-covered lake at Rundvagshetta (2016)
  • Author(s): 高野 淑識, 横山 祐典, 福井 学
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-22 – 2016-05-22
• [Presentation] ルミネッセンス年代測定と放射性炭素年代の比較－広域テフラ年代を例として－ (2016)
  • Author(s): 宮入 陽介, 横山 祐典,塚本 すみ子
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-22 – 2016-05-22
• [Presentation] A novel approach in utilising marine methane seep derived bivalve shells for developing local ΔR corrections in deep sea environments (2016)
  • Author(s): Kazuhiro Yagasaki, Juichiro Ashi, Yusuke Yokoyama, Yosuke Miyairi, Shin'ichi Kuramoto
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-22 – 2016-05-22
• [Presentation] 高時間分解能高精度加速器分析による西太平洋表層Δ14C変動復元 (2016)
  • Author(s): 平 林 頌子, 横山 祐典, 鈴木淳, 宮入 陽介, 阿瀬 貴博
  • Organizer: 2016年度地球惑星科学連合大会
  • Place of Presentation: 幕張メッセ、千葉県千葉市
  • Year and Date: 2016-05-22 – 2016-05-22
• [Presentation] Radiocarbon measurements for marine fish to understand their ecology (2016)
  • Author(s): Miyairi, Y., Yokoyama, Y., Ohkouchi, N., Ogawa, N., Matsuzaki, H., Kusuno, H., and Nagata, T.
  • Organizer: IsoEcol 2016
  • Place of Presentation: 伊藤謝恩ホール、東京都文京区
  • Year and Date: 2016-04-05 – 2016-04-05
  • Int'l Joint Research
• [Presentation] Growth and calicification effects of ocean acidification on cultured bivalve, Scaphra broughtonii, revealed from radiocarbon and stable carbon isotopes (2016)
  • Author(s): Yokoyama, Y., Chew, Y.C., Nishida, K., Suzuki, A., Miyairi, Y., Hirabayashi, S., Sato, M., and Nojiri, Y.
  • Organizer: IsoEcol 2016
  • Place of Presentation: 伊藤謝恩ホール、東京都文京区
  • Year and Date: 2016-04-04 – 2016-04-04
  • Int'l Joint Research
• [Presentation] Amino acid and radiocarbon insights from captive whale sharks (2016)
  • Author(s): Wyatt, A.S., Matsumoto,R., Chikaraishi, Y., Miyairi, Y., Yokoyama, Y., Tsuzuki, K., Shirai, K., Higuchi, T.
  • Organizer: IsoEcol 2016
  • Place of Presentation: 伊藤謝恩ホール、東京都文京区
  • Year and Date: 2016-04-04 – 2016-04-04
  • Int'l Joint Research
• [Presentation] Blade-order-dependent radiocarbon variability in brown seaweed Undaria pinnatifida: A new tool for assessing the change in current regime during the growth period of kelps (2016)
  • Author(s): Sato, N., Fukuda, H., Miyairi, Y., Yokoyama, Y., Nagata, T.
  • Organizer: IsoEcol 2016
  • Place of Presentation: 伊藤謝恩ホール、東京都文京区
  • Year and Date: 2016-04-04 – 2016-04-04
  • Int'l Joint Research
• [Presentation] Geochemical analyses of fossil shells of Gafrarium tumidum collected from Tongatapu Island and its application in paleoceanography and archaeology during the Holocene (2016)
  • Author(s): Fukuyo, N., Kubota, K., Yokoyama, Y., Clark, G., Miyairi, Y., Tsuzuki, K., Shirai, K., and Higuchi, T.
  • Organizer: IsoEcol 2016
  • Place of Presentation: 伊藤謝恩ホール、東京都文京区
  • Year and Date: 2016-04-04 – 2016-04-04
  • Int'l Joint Research
• [Presentation] Life history of Indian catfish reconstructed from otolith geochemistry (2016)
  • Author(s): Kubota, K., Yokoyama, Y., Amekawa, S., Seki, A., Kawakubo, Y., Miyairi, Y., Sakai, S., Ajithprasad, P., Maemoku, H., Osada, T., and Bhattacharya, S.K.
  • Organizer: IsoEcol 2016
  • Place of Presentation: 伊藤謝恩ホール、東京都文京区
  • Year and Date: 2016-04-04 – 2016-04-04
  • Int'l Joint Research
• [Presentation] Nutrition sources of deep-sea meiofauna at hydrothermal vent and adjacement non-vent areas revealed by stable carbon and nitrogen isotope ratios and natural radiocarbon abundances (2016)
  • Author(s): Nomaki, H., Uejima, Y., Ogawa, N.O., Yamane, M., Watanabe, H.K., Senokuchi, R., Kitahashi, T., Yokoyama, Y., Ohkouchi, N., and Shimanaga, M.
  • Organizer: IsoEcol 2016
  • Place of Presentation: 伊藤謝恩ホール、東京都文京区
  • Year and Date: 2016-04-04 – 2016-04-04
  • Int'l Joint Research
• [Remarks] Yusuke Yokoyama Lab's website
  • URL: http://aces.aori.u-tokyo.ac.jp/yokoyama/index.html