ITOH Shoichi

J-GLOBAL         Last updated: Oct 14, 2019 at 19:17
ITOH Shoichi
Kyoto University
Graduate School of Science
Doctor of Science(Tokyo Institute of Technology)

Research Areas


Academic & Professional Experience

Assistant Professor, Hokkaido University Faculty of Science, Department of Natural History Sciences, Earth and Planetary System Science


Department of Earth and Planetary Sciences, Graduate School, Division of Natural Science, Tokyo Institute of Technology
Department of Earth and Planetary Sciences, Faculty of Science, Tokyo Institute of Technology

Published Papers

Bollard Jean, Kawasaki Noriyuki, Sakamoto Naoya, Olsen Mia, Itoh Shoichi, Larsen Kirsten, Wielandt Daniel, Schiller Martin, Connelly James N., Yurimoto Hisayoshi, Bizzarro Martin
GEOCHIMICA ET COSMOCHIMICA ACTA   260 62-83   Sep 2019   [Refereed]
H. Kuwahara, S. Itoh, R. Nakada, and T. Irifune
Geophysical Research Letters   46(16) 9422-9429   Aug 2019   [Refereed]
Yoshizaki Takashi, Nakashima Daisuke, Nakamura Tomoki, Park Changkun, Sakamoto Naoya, Ishida Hatsumi, Itoh Shoichi
GEOCHIMICA ET COSMOCHIMICA ACTA   252 39-60   May 2019   [Refereed]
Eiji Ohmichi, Toshihiro Miki, Hidekazu Horie, Tsubasa Okamoto, Hideyuki Takahashi, Yoshinori Higashi, Shoichi Itoh, Hitoshi Ohta
Journal of Magnetic Resonance   287 41-46   Feb 2018
© 2017 Elsevier Inc. We developed piezoresistive microcantilevers for mechanically detected electron spin resonance (ESR) in the millimeter-wave region. In this article, fabrication process and device characterization of our self-sensing microcant...
Hikaru Yabuta, Takaaki Noguchi, Shoichi Itoh, Tomoki Nakamura, Akira Miyake, Shinichi Tsujimoto, Noriaki Ohashi, Naoya Sakamoto, Minako Hashiguchi, Ken ichi Abe, Aya Okubo, A. L.David Kilcoyne, Shogo Tachibana, Ryuji Okazaki, Kentaro Terada, Mitsuru Ebihara, Hiroko Nagahara
Geochimica et Cosmochimica Acta   214 172-190   Oct 2017
© 2017 Elsevier Ltd A comprehensive study of the organic chemistry and mineralogy of an ultracarbonaceous micrometeorite (UCAMM D05IB80) collected from near the Dome Fuji Station, Antarctica, was carried out to understand the genetic relationship ...
Ryuji Okazaki, Hirotaka Sawada, Shinji Yamanouchi, Shogo Tachibana, Yayoi N. Miura, Kanako Sakamoto, Yoshinori Takano, Masanao Abe, Masanao Abe, Shoichi Itoh, Keita Yamada, Hikaru Yabuta, Chisato Okamoto, Hajime Yano, Takaaki Noguchi, Tomoki Nakamura, Keisuke Nagao
Space Science Reviews   208 107-124   Jul 2017
© 2016, Springer Science+Business Media Dordrecht. The spacecraft Hayabusa2 was launched on December 3, 2014, to collect and return samples from a C-type asteroid, 162173 Ryugu (provisional designation, 1999 JU3). It is expected that the samples c...
T. Noguchi, H. Yabuta, S. Itoh, N. Sakamoto, T. Mitsunari, A. Okubo, R. Okazaki, T. Nakamura, S. Tachibana, K. Terada, M. Ebihara, N. Imae, M. Kimura, H. Nagahara
Geochimica et Cosmochimica Acta   208 119-144   Jul 2017
© 2017 Elsevier Ltd Micrometeorites (MMs) recovered from surface snow near the Dome Fuji Station, Antarctica are almost free from terrestrial weathering and contain very primitive materials, and are suitable for investigation of the evolution and ...
Michael E. Zolensky, Robert J. Bodnar, Hisayoshi Yurimoto, Hisayoshi Yurimoto, Shoichi Itoh, Marc Fries, Andrew Steele, Queenie H.S. Chan, Akira Tsuchiyama, Yoko Kebukawa, Motoo Ito
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences   375    May 2017
© 2017 The Author(s) Published by the Royal Society. All rights reserved. We describe the current state of the search for direct, surviving samples of early, inner Solar System fluids-fluid inclusions in meteorites. Meteoritic aqueous fluid inclus...
Noriyuki Kawasaki, Shoichi Itoh, Naoya Sakamoto, Hisayoshi Yurimoto, Hisayoshi Yurimoto
Geochimica et Cosmochimica Acta   201 83-102   Mar 2017
© 2016 Elsevier Ltd Fluffy Type A Ca–Al-rich inclusions (CAIs) containing reversely zoned melilite crystals are suggested to be aggregates of direct condensates from solar nebular gas. We conducted an investigation of26Al−26Mg systematics of a flu...
James P. Greenwood, Naoya Sakamoto, Shoichi Itoh, Shoichi Itoh, Paul H. Warren, Jack A. Singer, Kaori Yanai, Hisayoshi Yurimoto
Geochemical Journal   51 105-114   Jan 2017
© Copyright 2017 by The Geochemical Society of Japan.The last liquids of the lunar magma ocean, known as urKREEP, should be highly enriched in volatiles, such as water, fluorine, and chlorine. We find chlorine-rich glasses in two pristine KREEP ba...
Jack A. Singer, James P. Greenwood, Shoichi Itoh, Shoichi Itoh, Naoya Sakamoto, Hisayoshi Yurimoto
Geochemical Journal   51 95-104   Jan 2017
© Copyright 2017 by The Geochemical Society of Japan.While it is now recognized that the Moon has indigenous water and volatiles, their total abundances are unclear, with current literature estimates ranging from nearly absent to Earth-like levels...
Shoichi Itoh, James P. Greenwood, Sara Russell
Geochemical Journal   51 1-2   Jan 2017
Kenji Shimizu, Takayuki Ushikubo, Morihisa Hamada, Shoichi Itoh, Yoshinori Higashi, Eiichi Takahashi, Motoo Ito
Geochemical Journal   51 299-313   Jan 2017
© 2017 by The Geochemical Society of Japan. Secondary ion mass spectrometry (SIMS) is a powerful technique for measuring low-concentration volatile elements such as H, C, F, Cl, and S in micrometer-sized samples. The number of studies on volatiles...
Yoshinori Higashi, Shoichi Itoh, Minako Hashiguchi, Shuhei Sakata, Takafumi Hirata, Ken Watanabe, Isao Sakaguchi
Geochemical Journal   51 115-122   Jan 2017
© Copyright 2017 by The Geochemical Society of Japan.Many studies in the past decade have sought to explore the origin and evolution of water in planetary bodies based on the hydrogen isotopic compositions of apatite. However, no investigation has...
Ai Cheng Zhang, Ai Cheng Zhang, Shoichi Itoh, Shoichi Itoh, Hisayoshi Yurimoto, Wei Biao Hsu, Ru Cheng Wang, Lawrence A. Taylor
Meteoritics and Planetary Science   51 56-69   Jan 2016
© 2016 The Meteoritical Society. CM chondrites are a group of primitive meteorites that have recorded the alteration history of the early solar system. We report the occurrence, chemistry, and oxygen isotopic compositions of P-O-rich sulfide phase...
Ryuji Okazaki, Takaaki Noguchi, Shin Ichi Tsujimoto, Yu Tobimatsu, Tomoki Nakamura, Mitsuru Ebihara, Shoichi Itoh, Hiroko Nagahara, Shogo Tachibana, Kentaro Terada, Hikaru Yabuta
Earth, Planets and Space   67    Dec 2015
© 2015 Okazaki et al. We have investigated seven micrometeorites (MMs) from Antarctic snow collected in 2003 and 2010 by means of electron microscopy, X-ray diffraction, micro-Raman spectroscopy, transmission electron microscopy (TEM) observation,...
Noriyuki Kawasaki, Chizu Kato, Chizu Kato, Shoichi Itoh, Shoichi Itoh, Shigeyuki Wakaki, Motoo Ito, Hisayoshi Yurimoto
Geochimica et Cosmochimica Acta   169 99-114   Nov 2015
© 2015 Elsevier Ltd. Disequilibrium oxygen isotopic distributions of Ca-Al-rich inclusions (CAIs) correspond to multiple melting events in the solar nebula. 26Al-26Mg systematics may be applicable for age differences among su...
Ai Cheng Zhang, Ai Cheng Zhang, Shoichi Itoh, Shoichi Itoh, Naoya Sakamoto, Ru Cheng Wang, Hisayoshi Yurimoto, Hisayoshi Yurimoto
Geochimica et Cosmochimica Acta   130 78-92   Apr 2014
Aluminum-rich chondrules are one of the most interesting components of primitive chondrites, because they have characteristics that are similar to both Ca, Al-rich inclusions (CAIs) and ferromagnesian chondrules. However, their precursor and forma...
Jen Chieh Shiao, Shoichi Itoh, Hisayoshi Yurimoto, Yoshiyuki Iizuka, Yun Chih Liao
Deep-Sea Research Part I: Oceanographic Research Papers   84 50-58   Feb 2014
This study using tuna otoliths as working standards established a high lateral resolution and precision analysis to measure δ18Ootolith by secondary ion mass spectrometry. This analytical approach of the ion probe was applied to deep-sea fishes to...
Lin Li, Takaya Nagai, Tomoki Ishido, Satoko Motai, Kiyoshi Fujino, Shoichi Itoh
Physics and Chemistry of Minerals   41 431-437   Jan 2014
Experiments using laser-heated diamond anvil cells combined with synchrotron X-ray diffraction and SEM-EDS chemical analyses have confirmed the existence of a complete solid solution in the MgSiO3-MnSiO3perovskite system at high pressure and high ...
Hisayoshi Yurimoto, Hisayoshi Yurimoto, Shoichi Itoh, Shoichi Itoh, Michael Zolensky, Minoru Kusakabe, Akiya Karen, Robert Bodnar
Geochemical Journal   48 549-560   Jan 2014
Copyright © 2014 by The Geochemical Society of Japan. Determination of isotopic composition of extraterrestrial liquid water provides important information regarding the origin of water on Earth and the terrestrial planets. Fluid inclusions in hal...
J. M. Paque, S. R. Sutton, S. B. Simon, J. R. Beckett, D. S. Burnett, L. Grossman, L. Grossman, H. Yurimoto, S. Itoh, H. C. Connolly, H. C. Connolly, H. C. Connolly, H. C. Connolly
Meteoritics and Planetary Science   48 2015-2043   Oct 2013
Ti valence measurements in MgAl2O4 spinel from calcium-aluminum-rich inclusions (CAIs) by X-ray absorption near-edge structure (XANES) spectroscopy show that many spinels have predominantly tetravalent Ti, regardless of host phases. The average sp...
Hironori Negishi, Shoji Arai, Hisayoshi Yurimoto, Shoichi Ito, Satoko Ishimaru, Akihiro Tamura, Norikatsu Akizawa
Lithos   164-167 22-35   Apr 2013
Peculiar dunites, in part wehrlitic, that contain up to 3vol.% sulfides from a thick (~1000m) Moho transition zone (MTZ) are found along Wadi Thuqbah in the northern Oman ophiolite. We discuss their relevance to the formation of Cyprus-type massiv...
Juri Katayama, Shoichi Itoh, Hisayoshi Yurimoto
Meteoritics and Planetary Science   47 2094-2106   Dec 2012
The oxygen isotopic microdistributions within melilite measured using in situ secondary ion mass spectrometry correspond to the chemical zoning profiles in single melilite crystals of a fluffy type A Ca-Al-rich inclusions (CAIs) of reduced CV3 Vig...
エルキンス=タントン リンダ, 伊藤 正一
パリティ   27(5) 42-44   May 2012
Madhusoodhan Satish-Kumar, Hisayoshi Yurimoto, Shoichi Itoh, Bernardo Cesare
Contributions to Mineralogy and Petrology   162 821-834   Oct 2011
High-spatial resolution carbon isotope analyses of natural graphite using secondary ion mass spectrometry (SIMS), together with conventional mass spectrometry techniques, demonstrate isotopic heterogeneity within single graphite crystals precipita...
Hisayoshi Yurimoto, Ken Ichi Abe, Masanao Abe, Mitsuru Ebihara, Akio Fujimura, Minako Hashiguchi, Ko Hashizume, Trevor R. Ireland, Shoichi Itoh, Juri Katayama, Chizu Kato, Junichiro Kawaguchi, Noriyuki Kawasaki, Fumio Kitajima, Sachio Kobayashi, Tatsuji Meike, Toshifumi Mukai, Keisuke Nagao, Tomoki Nakamura, Hiroshi Naraoka, Takaaki Noguchi, Ryuji Okazaki, Changkun Park, Naoya Sakamoto, Yusuke Seto, Masashi Takei, Akira Tsuchiyama, Masayuki Uesugi, Shigeyuki Wakaki, Toru Yada, Kosuke Yamamoto, Makoto Yoshikawa, Michael E. Zolensky
Science   333 1116-1119   Aug 2011
Meteorite studies suggest that each solar system object has a unique oxygen isotopic composition. Chondrites, the most primitive of meteorites, have been believed to be derived from asteroids, but oxygen isotopic compositions of asteroids themselv...
James P. Greenwood, Shoichi Itoh, Naoya Sakamoto, Paul Warren, Lawrence Taylor, Hisayoshi Yurimoto
Nature Geoscience   4 79-82   Feb 2011
Water plays a critical role in the evolution of planetary bodies 1, and determination of the amount and sources of lunar water has profound implications for our understanding of the history of the Earth-Moon system. During the Apollo programme, th...
Naoya Sakamoto, Shoichi Itoh, Hisayoshi Yurimoto
Applied Surface Science   255 1458-1460   Dec 2008
We report a discovery of a chemically and isotopically unique material distributed ubiquitously in fine-grained matrix of a primitive carbonaceous chondrite Acfer 094. The observations were made in situ using a novel high precision imaging techniq...
Shoichi Itoh, Kentaro Makide, Hisayoshi Yurimoto
Applied Surface Science   255 1476-1478   Dec 2008
High precision Mg isotope measurements have been performed to determine radiogenic 26Mg of CAI minerals by secondary ion mass spectrometry using Faraday cup multi-collection system. Terrestrial samples of spinel and augite, and synthetic glasses o...
James P. Greenwood, Shoichi Itoh, Naoya Sakamoto, Edward P. Vicenzi, Hisayoshi Yurimoto, Hisayoshi Yurimoto
Geophysical Research Letters   35    Mar 2008
The high D/H of the Martian atmosphere (∼5-6 × terrestrial) is considered strong evidence for the loss of a Martian water to space. The timing and magnitude of the losss of water from Mars can be constrained by measurements of D/H in Martian meteo...
S. Itoh, H. Yurimoto
AIP Conference Proceedings   1016 394-399   Jan 2008
© 2008 American Institute of Physics. High precision Mg isotope measurements have been performed to determine radiogenic 26Mg of coarse-grained Ca-Al-rich inclusions (CAIs) in two carbonaceous chondrites by secondary ion mass spectrometry using fa...
Naoya Sakamoto, Yusuke Seto, Shoichi Itoh, Kiyoshi Kuramoto, Kiyoshi Fujino, Kazuhide Nagashima, Alexander N. Krot, Hisayoshi Yurimoto, Hisayoshi Yurimoto
Science   317 231-233   Jul 2007
Oxygen isotopic composition of our solar system is believed to have resulted from mixing of two isotopically distinct nebular reservoirs, 16O-rich and 17,18O-rich relative to Earth. The nature and composition of the 17,18O-rich reservoir are poorl...
Shoichi Itoh, Shoichi Itoh, Sara S. Russell, Hisayoshi Yurimoto
Meteoritics and Planetary Science   42 1241-1247   Jul 2007
Amoeboid olivine aggregates (AOAs) in the LL3.0 Semarkona chondrite have been studied by secondary ion mass spectrometry. The AOAs mainly consist of aggregates of olivine grains with interstitial Al-Ti-rich diopside and anorthite. Oxygen-isotopic ...
The genetic relationship between refractory inclusions and Chondrules.
Russell S. S., Krot A. N., Huss G. R., Keil K., Itoh S., Yurimoto H. and MacPherson G. J.
In Chondrites and the Protoplanetary Disk, ASP Conference Series, The Astronomical Society of the Pacific      2005   [Refereed]
Alexander N. Krot, Michail I. Petaev, Sara S. Russell, Shoichi Itoh, Shoichi Itoh, Timothy J. Fagan, Timothy J. Fagan, Hisayoshi Yurimoto, Lysa Chizmadia, Michael K. Weisberg, Michael K. Weisberg, Matsumi Komatsu, Alexander A. Ulyanov, Klaus Keil
Chemie der Erde - Geochemistry   64 185-239   Sep 2004
Amoeboid olivine aggregates (AOAs) are the most common type of refractory inclusions in CM, CR, CH, CV, CO, and ungrouped carbonaceous chondrites Acfer 094 and Adelaide; only one AOA was found in the CB<inf>b</inf> chondrite Hammadah al Hamra 237 ...
Shoichi Itoh, Hideyasu Kojima, Hisayoshi Yurimoto
Geochimica et Cosmochimica Acta   68 183-194   Jan 2004
Fine-grained Ca-Al-rich inclusions (FGIs) in Yamato-81020 (CO3.0) and Kainsaz (CO3.1-CO3.2) chondrites have been studied by secondary ion mass spectrometry. The FGIs from Yamato-81020 consist of aggregates of hibonite, spinel, melilite, anorthite,...
Shoichi Itoh, Hisayoshi Yurimoto
Nature   423 728-731   Jun 2003
Chondrules and calcium-aluminium-rich inclusions (CAIs) are preserved materials from the early history of the Solar System, where they resulted from thermal processing of pre-existing solids during various flash heating episodes which lasted for s...

Conference Activities & Talks

Hydrogen isotopes of water in the moon: evidence for the giant impact model from melt inclusions and apatite in apollo rock samples.
Greenwood, J. P., Itoh, S., Sakamoto, N., Yanai, K., Singer, J. A. and Yurimoto, H
45th Lunar and Planetary Science Conference   Mar 2014   
Itoh Shoichi, Yanai Kaori, Russell Sara, Greenwood James, Hisayoshi Yurimoto
Abstracts of Annual Meeting of the Geochemical Society of Japan   2013   
隕石母天体内での流体(H2O)のふるまいは,これまで全く不明瞭であった.これら流体のふるまいに制約を与えるため,近年,リン酸塩鉱物の岩石学的,同位体的研究が盛んに行われてきた(e.g., Jones et al., 2011; Yanai et al., 2012). 本講演では,系統的に,熱変成度の異なるLL4-6のリン酸塩鉱物に含まれる微量結晶水の定量及び水素同位体組成を報告する予定である.
Wakaki Shigeyuki, Itoh Shoichi, Tanaka Tsuyoshi, Yurimoto Hsayoshi
Abstracts of Annual Meeting of the Geochemical Society of Japan   2012   
Aicheng Zhang, Shoichi Itoh, Naoya Sakamoto, Hisayoshi Yurimoto, Rucheng Wang
Abstracts of Annual Meeting of the Geochemical Society of Japan   2012   
We report mineralogy, oxygen isotopic and rare-earth-element compositions of a sapphirine-bearing Al-rich chondrule (SARC) from the Dar al Gani (DaG) 978 ungrouped carbonaceous chondrite. Our results indicate that the precursor of SARC included Gr...

Association Memberships


Research Grants & Projects

Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(特別推進研究)
Project Year: 2008 - 2012    Investigator(s): Hisayoshi YURIMOTO
All types of primitive chondrites were analyzed isotopically insub-micrometer scale by isotope microscopy. Materials formed in pre-solar and early solar system agesare distinguished isotopically. The spatial distribution between the materials corr...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2008 - 2009    Investigator(s): Shoichi ITOH
In this study, the chronological study combined with petrology and isotopology were applied to the first solid material (refractory inclusions and chondrules) from primitive chodrite in the solar system which formed at first several million years ...
Isotope cosmochemistry of material evolution in the early solar system by isotope microscope
Grant-in-Aid for Scientific Research
Project Year: 2002