Decoding of the early earth's evolution

2018 Fiscal Year Annual Research Report

• Project/Area Number: 26220713
• Research Institution: The University of Tokyo
• Principal Investigator: 小宮 剛 東京大学, 大学院総合文化研究科, 教授 (30361786)
• Co-Investigator(Kenkyū-buntansha): 横山 哲也 東京工業大学, 理学院, 教授 (00467028) ; 片山 郁夫 広島大学, 理学研究科, 教授 (10448235) ; 飯塚 毅 東京大学, 大学院理学系研究科(理学部), 准教授 (70614569)
• Project Period (FY): 2014-05-30 – 2019-03-31
• Keywords: 初期地球 / 冥王代 / 初期太古代 / 消滅核種同位体進化解読 / 初期地球表層環境進化 / 生命必須元素 / 最古の岩石 / 最古の生命の痕跡

Outline of Annual Research Achievements

本年度は、カナダ北東部ハドソン湾東岸のヌブアギツック表成岩の地質調査を行った。この地域は2017年に当時最古とされる生命化石が報告された地域で、初期地球の生命・地球環境を解読する上で今最も注目されている地質体の一つである。私たちは2016年にも本地域の地質調査を行ったが、今年度は前回の地質調査結果を踏まえて、この地域の地質図を完成させる目的で調査を行った。本地域は高度の変成作用を被っているため、これまでの研究では珪質堆積岩と珪質火成岩岩脈を明瞭に分けることができなかったが、ドローンを用いた詳細な地質調査の結果両者を明確に分けることに成功した。今後、この珪質堆積岩中の炭質物を詳細に調べることによって、初期地球の生命活動に新しい知見が得られることが期待される。
隕石のMo同位体異常に関する研究を行い、その結果を日本地球化学会2018年年会で発表した（国際セッション・英語口頭発表）。近年、炭素質コンドライト（CC）とそれ以外の隕石（NC）とがCr, Ti, Sr, Moなどの元素に関し全く異なる同位体組成を有するという「同位体二分性」の存在が明らかとなってきた。本研究ではTIMSを用いて隕石の超高精度Mo同位体組成を測定し、同位体二分性の原因を解明すると同時に、地球のbuilding blockがどのような物質で構成されているか、議論を行った。測定の結果、CCとNCは95Moミュー値を横軸、94Moミュー値を縦軸にとった図上において傾きが等しくy-切片が異なる2つの平行線（CC-およびNC-line）を形成することが分かった。CC-およびNC-lineのy-切片はそれぞれ正と負の値を持つことから、地球の形成にはCC的およびNC的物質の双方が必要であることが明らかとなった。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] The Australian National University/The University of Queensland(オーストラリア)
  • Country Name: AUSTRALIA
  • Counterpart Institution: The Australian National University/The University of Queensland
• [Int'l Joint Research] University of Colorado at Boulder/University of Maryland, College Park/The Arizona State University(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: University of Colorado at Boulder/University of Maryland, College Park/The Arizona State University
  • # of Other Institutions: 1
• [Int'l Joint Research] University of Alberta(カナダ)
  • Country Name: CANADA
  • Counterpart Institution: University of Alberta
• [Int'l Joint Research] University of Leicester/The University of Manchester(英国)
  • Country Name: UNITED KINGDOM
  • Counterpart Institution: University of Leicester/The University of Manchester
• [Int'l Joint Research] Chinese Academy of Geological Science/Northwest University/Chang’an University(中国)
  • Country Name: CHINA
  • Counterpart Institution: Chinese Academy of Geological Science/Northwest University/Chang’an University
• [Int'l Joint Research]
  • # of Other Countries: 4
• [Journal Article] Micro-FTIR spectroscopic characterization of Neoproterozoic organic microfossils from the Fifteenmile Group in Yukon, Canada (2019)
  • Author(s): Igisu, N., Komiya, T., Awramik, S. M., Ikemoto, Y., Gen, Y., Uehara, H., Takai, K.
  • Journal Title: Island Arc Volume: 印刷中 Pages: 印刷中
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Refinement of the micro-distillation technique for isotopic analysis with pg-level Os in geologic samples (2019)
  • Author(s): Nakanishi, N., Yokoyama, T., Ishikawa, A.
  • Journal Title: Geostandards and Geoanalytical Research Volume: 印刷中 Pages: 印刷中
  • Peer Reviewed
• [Journal Article] Nucleosynthetic Sr-Nd isotope correlation in chondrites: Evidence for nebular thermal processing and dust transportation in the early Solar System (2019)
  • Author(s): Fukai, R., Yokoyama, T.
  • Journal Title: The Astrophysical Journal Volume: 印刷中 Pages: 印刷中
  • Peer Reviewed
• [Journal Article] Fractionation of highly siderophile elements in metal grains from unequilibrated ordinary chondrites: Implications for the origin of chondritic metals (2019)
  • Author(s): Okabayashi Satoki、Yokoyama Tetsuya、Nakanishi Nao、Iwamori Hikaru
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 244 Pages: 197～215
  • DOI: 10.1016/j.gca.2018.10.003
  • Peer Reviewed
• [Journal Article] Detrital zircon evidence for Archean crustal development and plate tectonics from the Murmac Bay group in the Rae Craton (2019)
  • Author(s): Sawada H., Iizuka T., Tsutsumi Y. & Isozaki Y.
  • Journal Title: Geochemical Journal Volume: 印刷中 Pages: 印刷中
  • Peer Reviewed
• [Journal Article] Palaeogeographic and tectonic setting of the Lower Jurassic (Pliensbachian-Toarcian) Nishinakayama Formation, Toyora Group, SW Japan (2019)
  • Author(s): Izumi Kentaro、Suzuki Kazue、Kemp David B.、Iizuka Tsuyoshi
  • Journal Title: Geological Journal Volume: 印刷中 Pages: 印刷中
  • DOI: 10.1002/gj.3466
  • Peer Reviewed / Int'l Joint Research
• [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 Pages: 952-973
  • DOI: https://doi.org/10.1029/2018GC007903
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Stochastic modeling of 3-D compositional distribution in the crust with Bayesian inference and application to geoneutrino observation in Japan (2019)
  • Author(s): Takeuchi N.、Ueki K.、Iizuka T.、Nagao J.、Tanaka A.、Enomoto S.、Shirahata Y.、Watanabe H.、Yamano M.、Tanaka H.K.M.
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 288 Pages: 37～57
  • DOI: 10.1016/j.pepi.2019.01.002
  • Peer Reviewed
• [Journal Article] U-Pb, Rb-Sr and Ar-Ar systematics of the ungrouped achondrites Northwest Africa 6704 and Northwest Africa 6693 (2019)
  • Author(s): Amelin Yuri、Koefoed Piers、Iizuka Tsuyoshi、Fernandes Vera Assis、Huyskens Magdalena H.、Yin Qing-Zhu、Irving Anthony J.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 245 Pages: 628～642
  • DOI: https://doi.org/10.1016/j.gca.2018.09.021
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The origin of the unique achondrite Northwest Africa 6704: Constraints from petrology, chemistry and Re?Os, O and Ti isotope systematics (2019)
  • Author(s): Hibiya Yuki、Archer Gregory J.、Tanaka Ryoji、Sanborn Matthew E.、Sato Yuya、Iizuka Tsuyoshi、Ozawa Kazuhito、Walker Richard J.、Yamaguchi Akira、Yin Qing-Zhu、Nakamura Tomoki、Irving Anthony J.
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 245 Pages: 597～627
  • DOI: https://doi.org/10.1016/j.gca.2018.04.031
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] An inhomogeneous across-slab conduit controlled by intraslab stress heterogeneity in the Nankai subduction zone (2019)
  • Author(s): Otsubo Makoto、Miyakawa Ayumu、Katayama Ikuo、Okazaki Keishi
  • Journal Title: Scientific Reports Volume: 9 Pages: 994
  • DOI: https://doi.org/10.1038/s41598-018-38142-w
  • Peer Reviewed
• [Journal Article] Influence of contamination on banded iron formations in the Isua supracrustal belt, West Greenland: Reevaluation of the Eoarchean seawater compositions (2018)
  • Author(s): Aoki, S., Morinaga, C., Kato, Y., Hirata, T., & Komiya, T.
  • Journal Title: Geoscience Frontiers Volume: 9 Pages: 1049-1072
  • DOI: 10.1016/j.gsf.2016.11.016
  • Peer Reviewed
• [Journal Article] Constraints on the P-T conditions of high-pressure metamorphic rocks from the Inyoni shear zone in the mid-Archean Barberton Greenstone Belt, South Africa (2018)
  • Author(s): Kato, D., Aoki, K., Komiya, T., Yamamoto, S., Sawaki, Y., Asanuma, H., Sato, T., Tsuchiya, Y., Shozugawa, K., Matsuo, M., & Windley, B. F.
  • Journal Title: Precambrian Research Volume: 315 Pages: 1-18
  • DOI: 10.1016/j.precamres.2018.06.018
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ar-Ar dating for hydrothermal quartz from the 2.4 Ga Ongeluk Formation, South Africa: implications for seafloor hydrothermal circulation (2018)
  • Author(s): Saito, T., Qiu, H.-N., Shibuya, T., Li, Y.-B., Kitajima, K., Yamamoto, S., Ueda, H., Komiya, T. & Maruyama, S.
  • Journal Title: Royal Society Open Science 5, 180260 Volume: 5 Pages: 180260
  • DOI: 180210.181098/rsos.180260
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Supra-subduction igneous formations of the Char ophiolite belt, East Kazakhstan (2018)
  • Author(s): Safonova, I., Komiya, T., Romer, R.L., Simonov, V., Seltmann, R., Rudnev, S., Yamamoto, S. & Sun, M.
  • Journal Title: Gondwana Research Volume: 59 Pages: 159-179
  • DOI: 10.1016/j.gr.2018.04.001
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Olivooides-like tube aperture in early Cambrian carinachitids (Medusozoa, Cnidaria) (2018)
  • Author(s): Han Jian、Li Guoxiang、Wang Xing、Yang Xiaoguang、Guo Junfeng、Sasaki Osamu、Komiya Tsuyoshi
  • Journal Title: Journal of Paleontology Volume: 92 Pages: 3～13
  • DOI: 10.1017/jpa.2017.10
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Redox history of the Three Gorges region during the Ediacaran and Early Cambrian as indicated by the Fe isotope (2018)
  • Author(s): Sawaki Yusuke、Tahata Miyuki、Komiya Tsuyoshi、Hirata Takafumi、Han Jian、Shu Degan
  • Journal Title: Geoscience Frontiers Volume: 9 Pages: 155～172
  • DOI: 10.1016/j.gsf.2017.02.005
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Sequential Chemical Separation of Cr and Ti from a Single Digest for High‐Precision Isotope Measurements of Planetary Materials (2018)
  • Author(s): Hibiya Yuki、Iizuka Tsuyoshi、Yamashita Katsuyuki、Yoneda Shigekazu、Yamakawa Akane
  • Journal Title: Geostandards and Geoanalytical Research Volume: 43 Pages: 133～145
  • DOI: https://doi.org/10.1111/ggr.12249
  • Peer Reviewed
• [Journal Article] Fossilized Melts in Mantle Wedge Peridotites (2018)
  • Author(s): Naemura Kosuke、Hirajima Takao、Svojtka Martin、Shimizu Ichiko、Iizuka Tsuyosi
  • Journal Title: Scientific Reports Volume: 8 Pages: 101169
  • DOI: https://doi.org/10.1038/s41598-018-28264-6
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] REE-Th-U and Nd isotope systematics of monazites in magnetite- and ilmenite-series granitic rocks of the Japan arc: Implications for its use as a tracer of magma evolution and detrital provenance (2018)
  • Author(s): Itano Keita、Iizuka Tsuyoshi、Hoshino Mihoko
  • Journal Title: Chemical Geology Volume: 484 Pages: 69～80
  • DOI: https://doi.org/10.1016/j.chemgeo.2017.11.033
  • Peer Reviewed
• [Journal Article] Evolution of Elastic Wave Velocities and Amplitudes During Triaxial Deformation of Aji Granite Under Dry and Water-Saturated Conditions (2018)
  • Author(s): Zaima Kanta、Katayama Ikuo
  • Journal Title: Journal of Geophysical Research: Solid Earth Volume: 123 Pages: 9601～9614
  • DOI: doi:10.1029/2018JB016377
  • Peer Reviewed
• [Journal Article] What is the origin of macroscopic friction? (2018)
  • Author(s): Sakuma H.、Kawai K.、Katayama I.、Suehara S.
  • Journal Title: Science Advances Volume: 4 Pages: 2268
  • DOI: doi:10.1126/sciadv.aav2268
  • Peer Reviewed
• [Journal Article] Evolution of permeability and fluid pathways in the uppermost oceanic crust inferred from experimental measurements on basalt cores (2018)
  • Author(s): KAWAGUCHI Kenta、KATAYAMA Ikuo
  • Journal Title: Journal of Mineralogical and Petrological Sciences Volume: 113 Pages: 268～272
  • DOI: https://doi.org/10.2465/jmps.180411
  • Peer Reviewed
• [Journal Article] Fluid-Induced Fracturing of Initially Damaged Granite Triggered by Pore Pressure Buildup (2018)
  • Author(s): Katayama I., Nicolas, A.、Schubel, A.
  • Journal Title: Geophysical Research Letters Volume: 45 Pages: 7488～7495
  • DOI: doi.org/10.1029/2018GL077815
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Molybdenum isotopic evidence for nebular thermal processing and material transportation in the inner solar system (2019)
  • Author(s): Yokoyama, T., Fukai, R., Tsujimoto, T.
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Nucleosynthetic strontium-neodymium isotope correlation in chondrites: Evidence for nebular thermal processing and dust transportation in the early solar system (2019)
  • Author(s): Fukai, R., Yokoyama, T.
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Thermal histories of metal phases in CH/CBb chondrite Isheyevo: Implications from siderophile elements (2019)
  • Author(s): Nakanishi, N., Yokoyama, T., Okabayashi, S., Iwamori, H.
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Noble gas isotopic compositions of four Stannern-group euncirtes (2019)
  • Author(s): Kagami, S., Haba, M.K., Nagao, K., Yokoyama, T., Yamaguchi, A.
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Hf-W dating of main-group pallasites (2019)
  • Author(s): Y. Homma, T. Iizuka and A. Ishikawa
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] The initial abundance of niobium-92 in the outer solar system (2019)
  • Author(s): Y. Hibiya, T. Iizuka and H. Enomoto
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Unique differentiated meteorite Northwest Africa 7312 (2019)
  • Author(s): M. Yasutake, A. Yamaguchi, R. C. Greenwood, Y. Hibiya, T. Iizuka and I. Franchi
  • Organizer: 50th Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Zr isotope constraints on early Earth differentiation. JSPS-DST Japan-India Forum for Advanced Study (2019)
  • Author(s): T. Iizuka, K. Itano and S. Yamamoto
  • Organizer: JSPS-DST Japan-India Forum for Advanced Study
  • Int'l Joint Research / Invited
• [Presentation] First-Principles Investigation for Frictional Characteristics of Brucite and its Application for Macroscopic Frictional Characteristics of Sheet-Structure Minerals (2019)
  • Author(s): H. Okuda, K. Kawai, H. Sakuma, I. Katayama
  • Organizer: International symposium of Crustal Dynamics
  • Int'l Joint Research
• [Presentation] The Origin of Macroscopic Friction between Single Crystal Mica Surfaces (2019)
  • Author(s): H. Sakuma, K. Kawai, I. Katayama, S. Suehara
  • Organizer: International symposium of Crustal Dynamics
  • Int'l Joint Research
• [Presentation] Evidence from Archean granitoids for microbial sulfate reduction before 4.0 Ga (2018)
  • Author(s): S. Aoyama, Y. Ueno, T. Komiya, T. Iizuka, A. Kamei and M. Satish-Kumar
  • Organizer: Goldschmidt Conference 2018
  • Int'l Joint Research
• [Presentation] Rise of Ocean Sulfate Caused by Oxidative Weathering in the Ediacaran (2018)
  • Author(s): Matsu'ura F, Sawaki Y, Saitoh M, Komiya T, Maruyama S & Ueno Y
  • Organizer: Goldschmidt Conference 2018
  • Int'l Joint Research
• [Presentation] Copper chemostratigraphy of the Ediacaran and Early Cambrian in the Three Gorges area, South China (2018)
  • Author(s): Yechuan Geng, Takeshi Ohno, Yusuke Sawaki, Shogo Aoki, Fumihiro Matsuura, Tsuyoshi Komiya
  • Organizer: International Conference on Ediacaran and Cambrian Sciences
  • Int'l Joint Research
• [Presentation] Nitrogen isotope chemostratigraphies of the shallow- and deep-sea strata from the Ediacaran to early Cambrian in South China: Evolution of marine nutrient system and animal evolution (2018)
  • Author(s): 小宮剛, 西澤学
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] 三つの初期大古代表成岩体の地質学的比較：イスア表成岩帯、ヌリアック表成岩類とヌブアギツック表成岩帯 (2018)
  • Author(s): 小宮剛, 山本伸次, 青木翔吾, 上原啓幹, 吉田聡
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] イスア表成岩帯の地質の再検討 (2018)
  • Author(s): 小宮剛, 山本伸次, 青木翔吾, 上原啓幹, 吉田聡
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] 太古代縞状鉄鉱層と炭酸塩岩の独立成分分析:鉄水酸化物、炭酸塩鉱物と砕屑性物質成分の化学組成の推定 (2018)
  • Author(s): 小宮剛
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] カナダ北東部・ヌブアギツック表成岩帯の地質:緑色岩の地球 化学的多様性や142Ndアイソクロンに基づく冥王代年代の原因 としての多くの珪長質貫入岩体の存在 (2018)
  • Author(s): 小宮剛
  • Organizer: 日本地質学会第 125 年学術大会(2018 札幌大会)
• [Presentation] 初期太古代の炭酸塩岩の地質学的産状と化学組成から推定する初期太古代の海洋化学組成 (2018)
  • Author(s): 吉田聡, 石川晃, 小宮剛
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] The internal anatomy and the cell movement of Lower Cambrian gastrulas (2018)
  • Author(s): 姚肖永, 韓健, 小宮剛
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Copper chemostratigraphy of the Ediacaran and Early Cambrian in the Three Gorges area, South China: Concentrations of copper in different phases of sedimentary rocks (2018)
  • Author(s): 耿野川, 大野剛, 澤木佑介, 青木翔吾, 松浦史宏, 小宮剛
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] アカスタ片麻岩体の初期太古代岩石の地質とジルコンU-Pb年代 (2018)
  • Author(s): 上原啓幹, 小宮剛, 石川晃, 山本伸次, 青木翔吾, 昆慶明, 坂田周平
  • Organizer: 日本地質学会第 125 年学術大会(2018 札幌大会)
• [Presentation] 南アフリカ、バーバートン地域Inyoni Shear Zoneに記録された 太古代の変成作用とテクトニクス (2018)
  • Author(s): 加藤大地, 青木一勝, 土屋裕太, 小宮剛
  • Organizer: 日本地質学会第 125 年学術大会(2018 札幌大会)
• [Presentation] 初期太古代の炭酸塩岩の地質学的産状と化学組成から推定する 初期太古代海洋の微量遷移元素濃度 (2018)
  • Author(s): 吉田聡, 石川晃, 小宮剛
  • Organizer: 日本地質学会第 125 年学術大会(2018 札幌大会)
• [Presentation] オーストラリア・ジャックヒルズ堆積岩に含まれる砕屑性クロムスピネル (2018)
  • Author(s): 山本伸次, 小宮剛
  • Organizer: 日本地質学会第 125 年学術大会(2018 札幌大会)
• [Presentation] 深部マントル内の沈み込んだ大陸地殻物質:北海道幌満カンラ ン岩から分離したダイヤモンド、ジルコン及びルチル (2018)
  • Author(s): 李毅兵, Yang, J., 新井田清信, 山本伸次, Lin, Y., Li, Q., Tian, M., 昆慶明, 小宮剛, 丸山茂徳
  • Organizer: 日本地質学会第 125 年学術大会(2018 札幌大会)
• [Presentation] The evaluation for the age bias with the grain size of detrital zircons from the Jack Hills (2018)
  • Author(s): 田中大貴, 山本伸次, 小宮剛, 青木翔吾, 坂田周平, 大野剛
  • Organizer: 日本地質学会第 125 年学術大会(2018 札幌大会)
• [Presentation] 76Lu-176Hf, 147Sm-143Nd同位体系から探るアカスタ片麻岩体苦鉄質岩の形成年代 (2018)
  • Author(s): 越田渓子, 石川晃, 横山哲也, 鏡味沙耶, 深井稜汰, 鈴木勝彦, 木村純一, 常青, 宮崎隆, Bogdan, S.V., 小宮剛
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] 古原生代Hotazel Formationの縞状鉄鉱層およびMn堆積物の遷移金属元素分布 (2018)
  • Author(s): 青木翔吾, 大野剛, 中田亮一, 柏原輝彦, 高橋嘉夫, Tsikos, H., 小宮剛
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Meteoritical perspective on the origin of r-process nuclides in the Solar System (2018)
  • Author(s): Yokoyama, T., Fukai, R., Tsujimoto, T.
  • Organizer: 3rd Korea-Japan Joint Workshop on Isotope-Ratio Mass Spectrometry
  • Int'l Joint Research / Invited
• [Presentation] Nucleosynthetic Sr-Nd correlation in bulk chondrites: Evidence for nebular thermal processing and transportation of refractory dusts in the early Solar System (2018)
  • Author(s): Fukai, R., Yokoyama, T.
  • Organizer: Goldschmidt Conference 2018
  • Int'l Joint Research
• [Presentation] Petrogenesis of a unique shergottite Zagami: Implications from REE signature of pyroxene (2018)
  • Author(s): Tobita, M., Makino, Y., Okabayashi, S., Usui, T., Niihara, T., Misawa, K., Hirata, T., Yokoyama, T. Moriwaki, R.
  • Organizer: Goldschmidt Conference 2018
  • Int'l Joint Research
• [Presentation] Molybdenum isotopic evidence for late accretion of outer Solar System materials (2018)
  • Author(s): Yokoyama, T., Nagai, Y., Hirata, T.
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] Evidence for burial metamorphism on Vesta from Pb-Ar chronology of the Agoult eucrite (2018)
  • Author(s): T. Iizuka, F. Jourdan, A. Yamaguchi, P. Koefoed, Y. Hibiya and Y. Amelin
  • Organizer: The 9th Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Role of monazite in tracing crustal evolution (2018)
  • Author(s): T. Iizuka and K. Itano
  • Organizer: The 7th Asia-Pacific Workshop on Laser-Ablation and Micro-Analysis
  • Int'l Joint Research / Invited
• [Presentation] Tracing Magma Homogenization in Granite Genesis by Sr and Nd Isotope Microanalyses: A Case from the Busetsu Granite, Japan (2018)
  • Author(s): K. Itano and T. Iizuka.
  • Organizer: Goldschmidt Conference 2018
  • Int'l Joint Research
• [Presentation] パラサイト隕石のHf-W年代学 (2018)
  • Author(s): 本馬佳賢、飯塚毅
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] 初期太陽系における短寿命核種92Nbの不均質 (2018)
  • Author(s): 日比谷由紀、飯塚毅、榎本葉月
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] ユークライト隕石の鉛－アルゴン年代が示すベスタの熱史 (2018)
  • Author(s): 飯塚毅、ジョーダン・フレッド、山口亮、コエフォエド・ピアース、日比谷由紀、伊藤健吾、アメリン・ユーリー
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] 斜長石Sr同位体局所分析による花崗岩質マグマ進化の解明 (2018)
  • Author(s): 板野敬太、飯塚毅、星野美保子
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] 酸洗浄を適用したイスア変成玄武岩の微量元素組成とタングステン同位体 (2018)
  • Author(s): 榎本葉月、飯塚毅、本馬佳賢
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] 地球岩石の高精度182W/184W同位体組成 (2018)
  • Author(s): 賞雅雅子、深海雄介、飯塚毅、鈴木勝彦
  • Organizer: 2018年度日本地球化学会年会
• [Presentation] Chemical evolution of magma at Fuji volcano constrained from geochemistry of the 1707 Hoei eruption (2018)
  • Author(s): 原田智代、飯塚毅、浜田盛久、安田敦、吉本充宏
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] 同位体地球化学から制約する大陸地殻成長モデル (2018)
  • Author(s): 飯塚毅
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] 酸洗浄を適用した太古代変成玄武岩のタングステン同位体及び微量元素組成 (2018)
  • Author(s): 榎本葉月、飯塚毅、本馬佳賢
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Isotopic change and its homogenization for petrogenesis of the Busetsu granites in Japan: evidence from multiple isotope micro-analyses (2018)
  • Author(s): 板野敬太、飯塚毅、星野美保子
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Hf-W chronology of the Brenham pallasite (2018)
  • Author(s): 本馬佳賢、飯塚毅
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Geochemical evolution of Late Archean volcanism in the Western Dharwar Craton, Southern India (2018)
  • Author(s): 塩谷 佳大、Satish-Kumar Madhusoodhan、高橋俊郎、飯塚毅、下田玄、後藤孝介、三島郁、上野雄一郎、豊島剛志
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] 地球ニュートリノフラックスの精度向上に向けた単一岩体での高密度サンプリングによる組成変化の評価 (2018)
  • Author(s): 南一輝、上木賢太、飯塚毅、榎本三四郎、田中宏幸
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Transition from arc accretionary-type to collision-type orogenic events during the assembly of the Gondwana supercontinent from the integrated detrital zircon and monazite age spectra (2018)
  • Author(s): 板野敬太、飯塚毅
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Ordovician mantle dynamics in NE-Japan constraints from layered structures of Cumulate Member in the Hayachine-Miyamori Ophiolite (2018)
  • Author(s): 木村皐史、小澤一仁、飯塚毅
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Generation condition of primary magmas in the Hidaka metamorphic belt constrained by the Nikanbetsu gabbro complex (2018)
  • Author(s): 田上創、小澤一仁、飯塚毅、栗谷豪、中川光弘
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Evaluation of acid leaching methods for high precision meteorite Pb-Pb chronology (2018)
  • Author(s): 伊藤健吾、飯塚毅
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] 惑星物質の高精度Cr-Ti 安定同位体分析手法の開発 (2018)
  • Author(s): 日比谷由紀、飯塚毅、山下勝行、米田成一、山川茜
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] Rheological evidences of water-rich stratification in Mars (2018)
  • Author(s): I. Katayama, Y. Matsuoka, S. Azuma
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] The Oman Drilling Project Phase II Science Party, Influence of hydrothermal alteration on elastic wave velocity of mafic rocks from the Oeyama and Semail ophiolites (2018)
  • Author(s): K. Kimura, I. Katayama, K. Hataeyama, Y. Akamatsu, N. Abe, K. Okazaki
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] Experimental study on relationship between permeability and transport pore radius of sandstone (2018)
  • Author(s): K. Sueyoshi, T. Yokoyama, I. Katayama, Y.
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] The Oman Drilling Project Phase II Science Party, Quantification of the downhole degree of serpentinization estimated by X-ray CT core imaging (2018)
  • Author(s): K. Michibayashi, I. Katayama, P. Kelemen, K. Okazaki, M. Godard, E. Takazawa, D. Teagle
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] The Oman Drilling Project Phase II Science Party, Compressional and shear wave velocities of mafic rocks collected from Oman Drilling Project (2018)
  • Author(s): K. Hatakeyama, I. Katayama, P. N. Abe, Okazaki, B. Ildefonse, Y. Akamatsu
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] Initial report of physical property measurments, ChikyuOman 2018: crust-mantle boundary and the mantle section from ICDP Oman Drilling Project Phase II (2018)
  • Author(s): N. Abe, K. Okazaki, I. Katayama, et al.
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] Influence of clay minerals on the slope angles and its implication for subsurface water in Mars (2018)
  • Author(s): Y. Matsuoka, I. Katayama
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] Contrasting dilatant behaviors between mafic and utramafic rocks based on triaxial deformation experiments (2018)
  • Author(s): Y. Akamatsu, K. Hatakeyama, I. Katayama
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] One-station time-lapse seismic imaging: concept and preliminary applications (2018)
  • Author(s): N. Fuji, S. Lai, I. Katayama
  • Organizer: American Geophysical Union, Fall Meeting
  • Int'l Joint Research
• [Presentation] 岩石のミクロな破壊から地震のマクロな破壊まで (2018)
  • Author(s): 片山郁夫
  • Organizer: 高圧討論会
  • Invited
• [Presentation] Migration of acoustic emission controlled by hydraulic diffusivity and implication for tremor migration along a subducting plate interface (2018)
  • Author(s): Katayama I., Nicolas, A., Schubnel, A.
  • Organizer: Joint Workshop on Slow Earthquake
  • Int'l Joint Research
• [Presentation] Effect of pore pressure on attenuation of seismic waves in thermally cracked granite (2018)
  • Author(s): amada, K., Sawayama, K., Katayama I.
  • Organizer: Joint Workshop on Slow Earthquake
  • Int'l Joint Research
• [Presentation] レオロジー構造に基づく火星内部での水の存在の検証 (2018)
  • Author(s): 松岡友希、片山郁夫
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] アウターライズ領域での蛇紋岩化の定量的な評価に向けた蛇紋岩の弾性波速度の測定 (2018)
  • Author(s): 畠山航平、片山郁夫
  • Organizer: 日本地球惑星連合2018年大会
  • Invited
• [Presentation] 弾性的厚さから推察される火星内部での水の変遷 (2018)
  • Author(s): 片山郁夫，松岡友希、東真太郎
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] 三軸圧縮試験による超苦鉄質岩と苦鉄質岩のダイラタンシーの評価 (2018)
  • Author(s): 赤松祐哉、畠山航平，片山郁夫
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] オマーンオフィオライト陸上掘削から採取された苦鉄質岩コア試料の弾性波速度とその圧力依存性 (2018)
  • Author(s): 畠山航平、阿部なつ江、岡崎啓史、Ildefonse Benoit，片山郁夫
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] モンモリロナイトの摩擦強度：配向度と吸着水の影響 (2018)
  • Author(s): 佐久間博、河合研志，片山郁夫
  • Organizer: 日本地球惑星連合2018年大会
• [Presentation] bruciteナノ粒子のvelocity-weakeningへの寄与 (2018)
  • Author(s): 奥田花也、片山郁夫、佐久間博、河合研志
  • Organizer: 日本地球惑星連合2018年大会
• [Book] A Comprehensive Reference Source on the Chemistry of the Earth (Encyclopedia of Earth Sciences Series) (2018)
  • Author(s): Komiya, T. (Book section), Editor William M. White
  • Total Pages: 1557
  • Publisher: Springer International Publishing
  • ISBN: 978-3-319-39311-7
• [Remarks] 小宮研究室地球生命環境進化史
  • URL: http://www43.tok2.com/home/isua/
• [Remarks] Yokohama Laboratory
  • URL: http://www.geo.titech.ac.jp/lab/yokoyama/
• [Remarks] 東京大学大学院理学系研究科 地球惑星科学専攻 飯塚研究室
  • URL: http://www-solid.eps.s.u-tokyo.ac.jp/~iizuka/index.html
• [Remarks] 広島大学地球惑星システム学地球内部物質循環グループ
  • URL: https://home.hiroshima-u.ac.jp/geoenvi/link/katayamaG.html