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- Alexey Kotov; Noriyoshi Tsuchiya; Satoshi Okumura; Masao Ban; Masaoki Uno; Isoji Miyagi; Kenji Shimizu; Takayuki Ushikubo; Geri Agroli; Shumpei Yoshimura; Manzshir Bayarbold
Magmatic evolution and timescales of the Naruko caldera system (NE Honshu): Insight from orthopyroxene and quartz mineral zoning
Journal of Volcanology and Geothermal Research, 2025年11月
467, 108415, 108415
[査読有り] - Yulina V. Hane; Ryoshiro Wakiya; Takayuki Ushikubo; Yuki Nozoe; Shingo Kimura
Reconstructing water temperatures and depths experienced during the newly hatched larval stage of the tropical eel Anguilla marmorata using otolith oxygen isotope analysis
Fisheries Science, 2025年02月22日
[査読有り] - Fumihiro Matsu'ura; Yusuke Sawaki; Tsuyoshi Komiya; Jian Han; Shigenori Maruyama; Takayuki Ushikubo; Kenji Shimizu; Yuichiro Ueno
Oceanic and Sedimentary Microbial Sulfur Cycling Controlled by Local Organic Matter Flux During the Ediacaran Shuram Excursion in the Three Gorges Area, South China
Geobiology, 2024年09月19日
22, 5
[査読有り] - Takaaki Noguchi; Daisuke Nakashima; Takayuki Ushikubo; Wataru Fujiya; Noriaki Ohashi; John P. Bradley; Tomoki Nakamura; Noriko T. Kita; Peter Hoppe; Hidemi Ishibashi; Makoto Kimura; Naoya Imae
Chondrule-like objects and a Ca-Al-rich inclusion from comets or comet-like icy bodies
Geochimica et Cosmochimica Acta, 2024年09月
381, 131, 155
[査読有り] - Yves Moussallam; William Henry Towbin; Terry Plank; Hélène Bureau; Hicham Khodja; Yunbin Guan; Chi Ma; Michael B. Baker; Edward M. Stolper; Fabian U. Naab; Brian D. Monteleone; Glenn A. Gaetani; Kenji Shimizu; Takayuki Ushikubo; Hyun Joo Lee; Shuo Ding; Sarah Shi; Estelle F. Rose‐Koga
ND70 Series Basaltic Glass Reference Materials for Volatile Element (H2O ,CO2 , S, Cl, F) Measurement and the C Ionisation Efficiency Suppression Effect of Water in Silicate Glasses inSIMS
Geostandards and Geoanalytical Research, 2024年07月25日
48, 3, 637, 660
[査読有り] - Yuka Inagaki; Yoshiyuki Ishitani; Akihiro Tame; Katsuyuki Uematsu; Naotaka Tomioka; Takayuki Ushikubo; Yurika Ujiié
Foraminiferal detoxification breakdown induced by fatal levels of TiO2 nanoparticles
Frontiers in Marine Science, 2024年07月01日
11, 1381247
[査読有り] - Daisuke Nakashima; Takaaki Noguchi; Takayuki Ushikubo; Makoto Kimura; Noriko Kita
Oxygen isotope study of the Asuka-881020 CH chondrite II: Porphyritic chondrules
Geochimica et Cosmochimica Acta, 2024年05月
373, 292, 307
[査読有り] - Nozaki, T.; Nagase, T.; Ushikubo, T.; Shimizu, K.; Komuro, K.
In situ sulfur isotope analysis of pyrite from the Ezuri Kuroko-type volcanogenic massive sulfide deposit, northeastern Japan: Contribution of microbial sulfate reduction to initial sulfide mineralization
Resource Geology, 2024年01月
74, 1, e12328
[査読有り] - Sota Arakawa; Daiki Yamamoto; Takayuki Ushikubo; Hiroaki Kaneko; Hidekazu Tanaka; Shigenobu Hirose; Taishi Nakamoto
Oxygen isotope exchange between molten silicate spherules and ambient water vapor with nonzero relative velocity: Implication for chondrule formation environment
Icarus, 2023年11月
405, 115690, 115690
[査読有り] - Mingming Zhang; Kohei Fukuda; Michael J. Spicuzza; Guillaume Siron; Adriana Heimann; Alex J. Hammerstrom; Noriko T. Kita; Takayuki Ushikubo; John W. Valley
SIMS matrix effects in oxygen isotope analysis of olivine and pyroxene: Application to Acfer 094 chondrite chondrules and reconsideration of the primitive chondrule minerals (PCM) line
Chemical Geology, 2022年10月05日
608
[査読有り] - Maximilien Bôle; Takayuki Ushikubo; Rie S. Hori; Peter O. Baumgartner; Yuki Nakai; Masayuki Ikeda
Si isotope ratio of radiolaria across Triassic–Jurassic transition in a pelagic deep-sea bedded chert (Inuyama, Japan)
Global and Planetary Change, 2022年08月
215
[査読有り] - Masataka Kawaguchi; Kenneth T Koga; Estelle Rose-Koga; Kenji Shimizu; Takayuki Ushikubo; Akira Yoshiasa
Sulfur isotope and trace element systematics in arc magmas: seeing through the degassing via a melt inclusion study of Kyushu Island volcanoes, Japan
Journal of Petrology, 2022年07月01日
[査読有り] - Jia Liu; Chunhui Tao; Jianping Zhou; Kenji Shimizu; Wei Li; Jin Liang; Shili Liao; Takeshi Kuritani; Etienne Deloule; Takayuki Ushikubo; Mitsuhiro Nakagawa; Weifang Yang; Guoyin Zhang; Yunlong Liu; Chuanwei Zhu; Hao Sun; Jingjun Zhou
Water enrichment in the mid-ocean ridge by recycling of mantle wedge residue
Earth and Planetary Science Letters, 2022年04月
584, 117455, 117455
[査読有り] - Fukuda, K.; Tenner, T.J.; Kimura, M.; Tomioka, N.; Siron, G.; Ushikubo, T.; Chaumard, N.; Hertwig, A.T.; Kita, N.T.
A temporal shift of chondrule generation from the inner to outer Solar System inferred from oxygen isotopes and Al-Mg chronology of chondrules from primitive CM and CO chondrites
Geochimica et Cosmochimica Acta, 2022年04月
322, 194, 226
[査読有り] - MacPherson, G.J.; Krot, A.N.; Kita, N.T.; Bullock, E.S.; Nagashima, K.; Ushikubo, T.; Ivanova, M.A.
The formation of Type B CAIs: Evolution from Type A CAIs
Geochimica et Cosmochimica Acta, 2022年03月
321, 343, 374
[査読有り] - Kenji Shimizu; Takayuki Ushikubo; Takeshi Kuritani; Naoto Hirano; Shigeru Yamashita
Modification for the matrix effect in SIMS-derived water contents of silicate glasses
GEOCHEMICAL JOURNAL, 2022年
56, 6, 223, 230
[査読有り] - Yulina Hane; Takayuki Ushikubo; Yusuke Yokoyama; Yosuke Miyairi; Shingo Kimura
Natal origin of Pacific bluefin tuna Thunnus orientalis determined by SIMS oxygen isotope analysis of otoliths
PloS one, 2022年
17, 8, e0272850
[査読有り] - Takeshi Kuritani; Kenji Shimizu; Takayuki Ushikubo; Qun Ke Xia; Jia Liu; Mitsuhiro Nakagawa; Hajime Taniuchi; Eiichi Sato; Nobuo Doi
Tracing the subducting Pacific slab to the mantle transition zone with hydrogen isotopes
Scientific Reports, 2021年12月
11, 1
[査読有り] - Takeshi Kuritani; Eiichi Sato; Keiji Wada; Akiko Matsumoto; Mitsuhiro Nakagawa; Dapeng Zhao; Kenji Shimizu; Takayuki Ushikubo
Conditions of magma generation at the Me-akan volcano, northern Japan
Journal of Volcanology and Geothermal Research, 2021年09月
417
[査読有り] - Tatsuo Nozaki; Toshiro Nagase; Takayuki Ushikubo; Kenji Shimizu; Jun-ichiro Ishibashi
Microbial sulfate reduction plays an important role at the initial stage of subseafloor sulfide mineralization
Geology, 2021年02月01日
49, 2, 222, 227
[査読有り] - Masataka Kawaguchi; Toshiaki Hasenaka; Kenneth T. Koga; Estelle F. Rose-Koga; Atsushi Yasuda; Natsumi Hokanishi; Yasushi Mori; Kenji Shimizu; Takayuki Ushikubo
Persistent gas emission originating from a deep basaltic magma reservoir of an active volcano: the case of Aso volcano, Japan
Contributions to Mineralogy and Petrology, 2021年01月
176, 1
[査読有り] - Ushikubo, T.; Kimura, M.
Oxygen-isotope systematics of chondrules and olivine fragments from Tagish Lake C2 chondrite: Implications of chondrule-forming regions in protoplanetary disk
Geochimica et Cosmochimica Acta, 2021年
293, 328, 343
[査読有り]
筆頭著者, 責任著者 - Hane, Y.; Kimura, S.; Yokoyama, Y.; Miyairi, Y.; Ushikubo, T.; Ishimura, T.; Ogawa, N.; Aono, T.; Nishida, K.
Reconstruction of temperature experienced by Pacific bluefin tuna Thunnus orientalis larvae using SIMS and microvolume CF-IRMS otolith oxygen isotope analyses
Marine Ecology Progress Series, 2020年
649, 175, 188
[査読有り] - Hamada, M.; Iwamori, H.; Brandl, P.A.; Ushikubo, T.; Shimizu, K.; Ito, M.; Li, H.; Savov, I.P.
Temporal Evolution of Proto-Izu-Bonin-Mariana Arc Volcanism over 10 Myr: Constraints from Statistical Analysis of Melt Inclusion Compositions
Journal of Petrology, 2020年
61, 1
[査読有り] - Nakashima, D.; Kimura, M.; Yamada, K.; Noguchi, T.; Ushikubo, T.; Kita, N.
Oxygen isotope study of the Asuka-881020 CH chondrite I: Non-porphyritic chondrules
Geochimica et Cosmochimica Acta, 2020年
290, 180, 200
[査読有り] - Hanyu, T.; Yamamoto, J.; Kimoto, K.; Shimizu, K.; Ushikubo, T.
Determination of total CO2 in melt inclusions with shrinkage bubbles
Chemical Geology, 2020年
557
[査読有り] - Fujiya, W.; Aoki, Y.; Ushikubo, T.; Hashizume, K.; Yamaguchi, A.
Carbon isotopic evolution of aqueous fluids in CM chondrites: Clues from in-situ isotope analyses within calcite grains in Yamato-791198
Geochimica et Cosmochimica Acta, 2020年
274, 246, 260
[査読有り] - Shimizu, K.; Ushikubo, T.; Murai, T.; Matsu'Ura, F.; Ueno, Y.
In situ analyses of hydrogen and sulfur isotope ratios in basaltic glass using SIMS
Geochemical Journal, 2019年
53, 3, 195, 207
[査読有り] - Zeb Page F; Cameron E.M; Flood C.M; Dobbins J.W; Spicuzza M.J; Kitajima K; Strickland A; Ushikubo T; Mattinson C.G; Valley J.W
Extreme oxygen isotope zoning in garnet and zircon from a metachert block in mélange reveals metasomatism at the peak of subduction metamorphism
Geology, 2019年
47, 7, 655, 658
[査読有り] - Fujiya, W.; Hoppe, P.; Ushikubo, T.; Fukuda, K.; Lindgren, P.; Lee, M.R.; Koike, M.; Shirai, K.; Sano, Y.
Migration of D-type asteroids from the outer Solar System inferred from carbonate in meteorites
Nature Astronomy, 2019年
3, 10, 910, 915
[査読有り] - Tenner, T.J.; Nakashima, D.; Ushikubo, T.; Tomioka, N.; Kimura, M.; Weisberg, M.K.; Kita, N.T.
Extended chondrule formation intervals in distinct physicochemical environments: Evidence from Al-Mg isotope systematics of CR chondrite chondrules with unaltered plagioclase
Geochimica et Cosmochimica Acta, 2019年
260, 133, 160
[査読有り] - Kuritani, T.; Xia, Q.-K.; Kimura, J.-I.; Liu, J.; Shimizu, K.; Ushikubo, T.; Zhao, D.; Nakagawa, M.; Yoshimura, S.
Buoyant hydrous mantle plume from the mantle transition zone
Scientific Reports, 2019年
9, 1
[査読有り] - Hertwig, A.T.; Kimura, M.; Ushikubo, T.; Defouilloy, C.; Kita, N.T.
The 26 Al- 26 Mg systematics of FeO-rich chondrules from Acfer 094: Two chondrule generations distinct in age and oxygen isotope ratios
Geochimica et Cosmochimica Acta, 2019年
253, 111, 126
[査読有り] - Hanyu T; Shimizu K; Ushikubo T; Kimura J.-I; Chang Q; Hamada M; Ito M; Iwamori H; Ishikawa T
Tiny droplets of ocean island basalts unveil Earth’s deep chlorine cycle
Nature Communications, 2019年
10, 1, 60, 60
[査読有り] - Lepot K; Williford K.H; Philippot P; Thomazo C; Ushikubo T; Kitajima K; Mostefaoui S; Valley J.W
Extreme 13C-depletions and organic sulfur content argue for S-fueled anaerobic methane oxidation in 2.72 Ga old stromatolites
Geochimica et Cosmochimica Acta, 2019年
244, 522, 547
[査読有り] - Helser, T.; Kastelle, C.; Crowell, A.; Ushikubo, T.; Orland, I.J.; Kozdon, R.; Valley, J.W.
A 200-year archaeozoological record of Pacific cod (Gadus macrocephalus) life history as revealed through ion microprobe oxygen isotope ratios in otoliths
Journal of Archaeological Science: Reports, 2018年
21, 1236, 1246
[査読有り] - Shirai, K.; Otake, T.; Amano, Y.; Kuroki, M.; Ushikubo, T.; Kita, N.T.; Murayama, M.; Tsukamoto, K.; Valley, J.W.
Temperature and depth distribution of Japanese eel eggs estimated using otolith oxygen stable isotopes
Geochimica et Cosmochimica Acta, 2018年
236, 373, 383
[査読有り] - Hamada, M.; Kimura, J.-I.; Chang, Q.; Hanyu, T.; Ushikubo, T.; Shimizu, K.; Ito, M.; Ozawa, T.; Iwamori, H.
High-precision in situ analysis of Pb isotopes in melt inclusions by LA-ICP-MS and application of independent component analysis
Geochemical Journal, 2018年
52, 1, 69, 74
[査読有り] - Williams C.D; Ushikubo T; Bullock E.S; Janney P.E; Hines R.R; Kita N.T; Hervig R.L; MacPherson G.J; Mendybaev R.A; Richter F.M; Wadhwa M
Thermal and chemical evolution in the early solar system as recorded by FUN CAIs: Part I – Petrology, mineral chemistry, and isotopic composition of Allende FUN CAI CMS-1
Geochimica et Cosmochimica Acta, 2017年
201, 25, 48
[査読有り] - Shimizu, K.; Ushikubo, T.; Hamada, M.; Itoh, S.; Higashi, Y.; Takahashi, E.; Ito, M.
H2 O, CO2 , F, S, Cl, and P2 O5 analyses of silicate glasses using SIMS: Report of volatile standard glasses
Geochemical Journal, 2017年
51, 4, 299, 313
[査読有り] - Ushikubo, T.; Tenner, T.J.; Hiyagon, H.; Kita, N.T.
A long duration of the 16O-rich reservoir in the solar nebula, as recorded in fine-grained refractory inclusions from the least metamorphosed carbonaceous chondrites
Geochimica et Cosmochimica Acta, 2017年
201, 103, 122
[査読有り]
筆頭著者, 責任著者 - Williford, K.H.; Ushikubo, T.; Lepot, K.; Kitajima, K.; Hallmann, C.; Spicuzza, M.J.; Kozdon, R.; Eigenbrode, J.L.; Summons, R.E.; Valley, J.W.
Carbon and sulfur isotopic signatures of ancient life and environment at the microbial scale: Neoarchean shales and carbonates
Geobiology, 2016年
14, 2, 105, 128
[査読有り] - Valley, J.W.; Reinhard, D.A.; Cavosie, A.J.; Ushikubo, T.; Lawrence, D.F.; Larson, D.J.; Kelly, T.F.; Snoeyenbos, D.R.; Strickland, A.
Presidential Address. Nano-and micro-geochronology in Hadean and Archean zircons by atom-probe tomography and SIMS: New tools for old minerals
American Mineralogist, 2015年
100, 7, 1355, 1377
[査読有り] - Tenner, T.J.; Nakashima, D.; Ushikubo, T.; Kita, N.T.; Weisberg, M.K.
Oxygen isotope ratios of FeO-poor chondrules in CR3 chondrites: Influence of dust enrichment and H2 O during chondrule formation
Geochimica et Cosmochimica Acta, 2015年
148, 228, 250
[査読有り] - Nakashima, D.; Ushikubo, T.; Kita, N.T.; Weisberg, M.K.; Zolensky, M.E.; Ebel, D.S.
Late formation of a comet Wild 2 crystalline silicate particle, Pyxie, inferred from Al-Mg chronology of plagioclase
Earth and Planetary Science Letters, 2015年
410, 54, 61
[査読有り] - Joswiak, D.J.; Nakashima, D.; Brownlee, D.E.; Matrajt, G.; Ushikubo, T.; Kita, N.T.; Messenger, S.; Ito, M.
Terminal particle from Stardust track 130: Probable Al-rich chondrule fragment from comet Wild 2
Geochimica et Cosmochimica Acta, 2014年
144, 277, 298
[査読有り] - Bonamici, C.E.; Kozdon, R.; Ushikubo, T.; Valley, J.W.
Intragrain oxygen isotope zoning in titanite by SIMS: Cooling rates and fluid infiltration along the Carthage-Colton Mylonite Zone, Adirondack Mountains, NY, USA
Journal of Metamorphic Geology, 2014年
32, 1, 71, 92
[査読有り] - Valley, J.W.; Cavosie, A.J.; Ushikubo, T.; Reinhard, D.A.; Lawrence, D.F.; Larson, D.J.; Clifton, P.H.; Kelly, T.F.; Wilde, S.A.; Moser, D.E.; Spicuzza, M.J.
Hadean age for a post-magma-ocean zircon confirmed by atom-probe tomography
Nature Geoscience, 2014年
7, 3, 219, 223
[査読有り] - Xing, G.-F.; Wang, X.-L.; Wan, Y.; Chen, Z.-H.; Jiang, Y.; Kitajima, K.; Ushikubo, T.; Gopon, P.
Diversity in early crustal evolution: 4100 Ma zircons in the Cathaysia Block of southern China
Scientific Reports, 2014年
4
[査読有り] - Ushikubo, T.; Williford, K.H.; Farquhar, J.; Johnston, D.T.; Van Kranendonk, M.J.; Valley, J.W.
Development of in situ sulfur four-isotope analysis with multiple Faraday cup detectors by SIMS and application to pyrite grains in a Paleoproterozoic glaciogenic sandstone
Chemical Geology, 2014年
383, 86, 99
[査読有り] - Valley J.W; Spicuzza M.J; Ushikubo T
Correlated δ18O and [Ti] in lunar zircons: A terrestrial perspective for magma temperatures and water content on the Moon
Contributions to Mineralogy and Petrology, 2014年
167, 1, 1, 15
[査読有り] - Lepot, K.; Williford, K.H.; Ushikubo, T.; Sugitani, K.; Mimura, K.; Spicuzza, M.J.; Valley, J.W.
Texture-specific isotopic compositions in 3.4Gyr old organic matter support selective preservation in cell-like structures
Geochimica et Cosmochimica Acta, 2013年
112, 66, 86
[査読有り] - Harwood, J.; Aplin, A.C.; Fialips, C.I.; Iliffe, J.E.; Kozdon, R.; Ushikubo, T.; Valley, J.W.
Quartz cementation history of sandstones revealed by high-resolution sims oxygen isotope analysis
Journal of Sedimentary Research, 2013年
83, 7, 522, 530
[査読有り] - Strickland, B.A.; Wooden, J.L.; Mattinson, C.G.; Ushikubo, T.; Miller, D.M.; Valley, J.W.
Proterozoic evolution of the Mojave crustal province as preserved in the Ivanpah Mountains, southeastern California
Precambrian Research, 2013年
224, 222, 241
[査読有り] - Williford, K.H.; Ushikubo, T.; Schopf, J.W.; Lepot, K.; Kitajima, K.; Valley, J.W.
Preservation and detection of microstructural and taxonomic correlations in the carbon isotopic compositions of individual Precambrian microfossils
Geochimica et Cosmochimica Acta, 2013年
104, 165, 182
[査読有り] - Grimes, C.B.; Ushikubo, T.; Kozdon, R.; Valley, J.W.
Perspectives on the origin of plagiogranite in ophiolites from oxygen isotopes in zircon
Lithos, 2013年
179, 48, 66
[査読有り] - Nakashima, D.; Kita, N.T.; Ushikubo, T.; Noguchi, T.; Nakamura, T.; Valley, J.W.
Oxygen three-isotope ratios of silicate particles returned from asteroid Itokawa by the Hayabusa spacecraft: A strong link with equilibrated LL chondrites
Earth and Planetary Science Letters, 2013年
379, 127, 136
[査読有り] - Tenner, T.J.; Ushikubo, T.; Kurahashi, E.; Kita, N.T.; Nagahara, H.
Oxygen isotope systematics of chondrule phenocrysts from the CO3.0 chondrite Yamato 81020: Evidence for two distinct oxygen isotope reservoirs
Geochimica et Cosmochimica Acta, 2013年
102, 226, 245
[査読有り] - Matta, M.E.; Orland, I.J.; Ushikubo, T.; Helser, T.E.; Black, B.A.; Valley, J.W.
Otolith oxygen isotopes measured by high-precision secondary ion mass spectrometry reflect life history of a yellowfin sole (Limanda aspera)
Rapid Communications in Mass Spectrometry, 2013年
27, 6, 691, 699
[査読有り] - Bullock, E.S.; Knight, K.B.; Richter, F.M.; Kita, N.T.; Ushikubo, T.; MacPherson, G.J.; Davis, A.M.; Mendybaev, R.A.
Mg and Si isotopic fractionation patterns in types B1 and B2 CAIs: Implications for formation under different nebular conditions
Meteoritics and Planetary Science, 2013年
48, 8, 1440, 1458
[査読有り] - Kita, N.T.; Welten, K.C.; Valley, J.W.; Spicuzza, M.J.; Nakashima, D.; Tenner, T.J.; Ushikubo, T.; MacPherson, G.J.; Welzenbach, L.; Heck, P.R.; Davis, A.M.; Meier, M.M.M.; Wieler, R.; Caffee, M.W.; Laubenstein, M.; Nishiizumi, K.
Fall, classification, and exposure history of the Mifflin L5 chondrite
Meteoritics and Planetary Science, 2013年
48, 4, 641, 655
[査読有り] - Ushikubo, T.; Nakashima, D.; Kimura, M.; Tenner, T.J.; Kita, N.T.
Contemporaneous formation of chondrules in distinct oxygen isotope reservoirs
Geochimica et Cosmochimica Acta, 2013年
109, 280, 295
[査読有り] - Kita, N.T.; Yin, Q.-Z.; Macpherson, G.J.; Ushikubo, T.; Jacobsen, B.; Nagashima, K.; Kurahashi, E.; Krot, A.N.; Jacobsen, S.B.
26Al-26Mg isotope systematics of the first solids in the early solar system
Meteoritics and Planetary Science, 2013年
48, 8, 1383, 1400
[査読有り] - MacPherson, G.J.; Kita, N.T.; Ushikubo, T.; Bullock, E.S.; Davis, A.M.
Well-resolved variations in the formation ages for Ca-Al-rich inclusions in the early Solar System
Earth and Planetary Science Letters, 2012年
331-332, 43, 54
[査読有り] - Orland, I.J.; Bar-Matthews, M.; Ayalon, A.; Matthews, A.; Kozdon, R.; Ushikubo, T.; Valley, J.W.
Seasonal resolution of Eastern Mediterranean climate change since 34ka from a Soreq Cave speleothem
Geochimica et Cosmochimica Acta, 2012年
89, 240, 255
[査読有り] - Kitajima, K.; Ushikubo, T.; Kita, N.T.; Maruyama, S.; Valley, J.W.
Relative retention of trace element and oxygen isotope ratios in zircon from Archean rhyolite, Panorama Formation, North Pole Dome, Pilbara Craton, Western Australia
Chemical Geology, 2012年
332-333, 102, 115
[査読有り] - Ushikubo, T.; Kimura, M.; Kita, N.T.; Valley, J.W.
Primordial oxygen isotope reservoirs of the solar nebula recorded in chondrules in Acfer 094 carbonaceous chondrite
Geochimica et Cosmochimica Acta, 2012年
90, 242, 264
[査読有り] - Nakashima, D.; Ushikubo, T.; Joswiak, D.J.; Brownlee, D.E.; Matrajt, G.; Weisberg, M.K.; Zolensky, M.E.; Kita, N.T.
Oxygen isotopes in crystalline silicates of comet Wild 2: A comparison of oxygen isotope systematics between wild 2 particles and chondritic materials
Earth and Planetary Science Letters, 2012年
357-358, 355, 365
[査読有り] - Bouvier, A.-S.; Ushikubo, T.; Kita, N.T.; Cavosie, A.J.; Kozdon, R.; Valley, J.W.
Li isotopes and trace elements as a petrogenetic tracer in zircon: Insights from Archean TTGs and sanukitoids
Contributions to Mineralogy and Petrology, 2012年
163, 5, 745, 768
[査読有り] - Kita, N.T.; Ushikubo, T.; Knight, K.B.; Mendybaev, R.A.; Davis, A.M.; Richter, F.M.; Fournelle, J.H.
Internal 26Al- 26Mg isotope systematics of a Type B CAI: Remelting of refractory precursor solids
Geochimica et Cosmochimica Acta, 2012年
86, 37, 51
[査読有り] - Nakashima, D.; Ushikubo, T.; Zolensky, M.E.; Kita, N.T.
High precision oxygen three-isotope analyses of anhydrous chondritic interplanetary dust particles
Meteoritics and Planetary Science, 2012年
47, 2, 197, 208
[査読有り] - Kita, N.T.; Ushikubo, T.
Evolution of protoplanetary disk inferred from 26Al chronology of individual chondrules
Meteoritics and Planetary Science, 2012年
47, 7, 1108, 1119
[査読有り] - Grimes C.B; Ushikubo T; John B.E; Valley J.W
Uniformly mantle-like δ18O in zircons from oceanic plagiogranites and gabbros
Contributions to Mineralogy and Petrology, 2011年
161, 1, 13, 33
[査読有り] - Cavosie A.J; Valley J.W; Kita N.T; Spicuzza M.J; Ushikubo T; Wilde S.A
The origin of high δ18O zircons: Marbles, megacrysts, and metamorphism
Contributions to Mineralogy and Petrology, 2011年
162, 5, 961, 974
[査読有り] - Heck, P.R.; Huberty, J.M.; Kita, N.T.; Ushikubo, T.; Kozdon, R.; Valley, J.W.
SIMS analyses of silicon and oxygen isotope ratios for quartz from Archean and Paleoproterozoic banded iron formations
Geochimica et Cosmochimica Acta, 2011年
75, 20, 5879, 5891
[査読有り] - Weisberg, M.K.; Ebel, D.S.; Connolly, H.C.; Kita, N.T.; Ushikubo, T.
Petrology and oxygen isotope compositions of chondrules in E3 chondrites
Geochimica et Cosmochimica Acta, 2011年
75, 21, 6556, 6569
[査読有り] - Rudraswami, N.G.; Ushikubo, T.; Nakashima, D.; Kita, N.T.
Oxygen isotope systematics of chondrules in the Allende CV3 chondrite: High precision ion microprobe studies
Geochimica et Cosmochimica Acta, 2011年
75, 23, 7596, 7611
[査読有り] - Nakashima, D.; Ushikubo, T.; Gowda, R.N.; Kita, N.T.; Valley, J.W.; Nagao, K.
Ion microprobe analyses of oxygen three-isotope ratios of chondrules from the Sayh al Uhaymir 290 CH chondrite using a multiple-hole disk
Meteoritics and Planetary Science, 2011年
46, 6, 857, 874
[査読有り] - Bonamici C.E; Kozdon R; Ushikubo T; Valley J.W
High-resolution P-T-t paths from δ18O zoning in titanite: A snapshot of late-orogenic collapse in the Grenville of New York
Geology, 2011年
39, 10, 959, 962
[査読有り] - Hiyagon, H.; Yamakawa, A.; Ushikubo, T.; Lin, Y.; Kimura, M.
Fractionation of rare earth elements in refractory inclusions from the Ningqiang meteorite: Origin of positive anomalies in Ce, Eu, and Yb
Geochimica et Cosmochimica Acta, 2011年
75, 12, 3358, 3384
[査読有り] - Ferry, J.M.; Ushikubo, T.; Valley, A.W.
Formation of forsterite by silicification of dolomite during contact metamorphism
Journal of Petrology, 2011年
52, 9, 1619, 1640
[査読有り] - Schmitz, B.; Heck, P.R.; Alwmark, C.; Kita, N.T.; Meier, M.M.M.; Peucker-Ehrenbrink, B.; Ushikubo, T.; Valley, J.W.
Determining the impactor of the Ordovician Lockne crater: Oxygen and neon isotopes in chromite versus sedimentary PGE signatures
Earth and Planetary Science Letters, 2011年
306, 3-4, 149, 155
[査読有り] - Williford, K.H.; Van Kranendonk, M.J.; Ushikubo, T.; Kozdon, R.; Valley, J.W.
Constraining atmospheric oxygen and seawater sulfate concentrations during Paleoproterozoic glaciation: In situ sulfur three-isotope microanalysis of pyrite from the Turee Creek Group, Western Australia
Geochimica et Cosmochimica Acta, 2011年
75, 19, 5686, 5705
[査読有り] - Noguchi, T.; Nakamura, T.; Ushikubo, T.; Kita, N.T.; Valley, J.W.; Yamanaka, R.; Kimoto, Y.; Kitazawa, Y.
A chondrule-like object captured by space-exposed aerogel on the international space station
Earth and Planetary Science Letters, 2011年
309, 3-4, 198, 206
[査読有り] - MacPherson, G.J.; Bullock, E.S.; Janney, P.E.; Kita, N.T.; Ushikubo, T.; Davis, A.M.; Wadhwa, M.; Krot, A.N.
Early solar nebula condensates with canonical, not supracanonical, initial 26Al/27Al ratios
Astrophysical Journal Letters, 2010年
711, 2 PART 2
[査読有り] - Ferry, J.M.; Ushikubo, T.; Kita, N.T.; Valley, J.W.
Assessment of grain-scale homogeneity and equilibration of carbon and oxygen isotope compositions of minerals in carbonate-bearing metamorphic rocks by ion microprobe
Geochimica et Cosmochimica Acta, 2010年
74, 22, 6517, 6540
[査読有り] - Heck, P.R.; Ushikubo, T.; Schmitz, B.; Kita, N.T.; Spicuzza, M.J.; Valley, J.W.
A single asteroidal source for extraterrestrial Ordovician chromite grains from Sweden and China: High-precision oxygen three-isotope SIMS analysis
Geochimica et Cosmochimica Acta, 2010年
74, 2, 497, 509
[査読有り] - Liu, Y.; Taylor, L.A.; Sarbadhikari, A.B.; Valley, J.W.; Ushikubo, T.; Spicuzza, M.J.; Kita, N.; Ketcham, R.A.; Carlson, W.; Shatsky, V.; Sobolev, N.V.
Metasomatic origin of diamonds in the world's largest diamondiferous eclogite
Lithos, 2009年
112, 1014, 1024
[査読有り] - Kozdon, R.; Ushikubo, T.; Kita, N.T.; Spicuzza, M.; Valley, J.W.
Intratest oxygen isotope variability in the planktonic foraminifer N. pachyderma: Real vs. apparent vital effects by ion microprobe
Chemical Geology, 2009年
258, 3-4, 327, 337
[査読有り] - Kita, N.T.; Ushikubo, T.; Fu, B.; Valley, J.W.
High precision SIMS oxygen isotope analysis and the effect of sample topography
Chemical Geology, 2009年
264, 1-4, 43, 57
[査読有り] - Hsu, W.; Zhang, A.; Bartoschewitz, R.; Guan, Y.; Ushikubo, T.; Krähenbühl, U.; Niedergesaess, R.; Pepelnik, R.; Reus, U.; Kurtz, T.; Kurtz, P.
Petrography, mineralogy, and geochemistry of lunar meteorite Sayh al Uhaymir 300
Meteoritics and Planetary Science, 2008年
43, 8, 1363, 1381
[査読有り] - Ushikubo, T.; Kita, N.T.; Cavosie, A.J.; Wilde, S.A.; Rudnick, R.L.; Valley, J.W.
Lithium in Jack Hills zircons: Evidence for extensive weathering of Earth's earliest crust
Earth and Planetary Science Letters, 2008年
272, 3-4, 666, 676
[査読有り] - Weidel B.C; Ushikubo T; Carpenter S.R; Kita N.T; Cole J.J; Kitchell J.F; Pace M.L; Valley J.W
Diary of a bluegill (Lepomis macrochirus): Daily δ13C and δ18O records in otoliths by ion microprobe
Canadian Journal of Fisheries and Aquatic Sciences, 2008年
29, 12, 1641, 1645
[査読有り] - Nakamura, T.; Noguchi, T.; Tsuchiyama, A.; Ushikubo, T.; Kita, N.T.; Valley, J.W.; Zolensky, M.E.; Kakazu, Y.; Sakamoto, K.; Mashio, E.; Uesugi, K.; Nakano, T.
Chondrulelike objects in short-period comet 81P/wild 2
Science, 2008年
321, 5896, 1664, 1667
[査読有り] - Page F.Z; Ushikubo T; Kita N.T; Riciputi L.R; Valley J.W
High-precision oxygen isotope analysis of picogram samples reveals 2 μm gradients and slow diffusion in zircon
American Mineralogist, 2007年
92, 10, 1772, 1775
[査読有り] - Ushikubo, T.; Hiyagon, H.; Sugiura, N.
A FUN-like hibonite inclusion with a large 26Mg-excess
Earth and Planetary Science Letters, 2007年
254, 1-2, 115, 126
[査読有り] - Ushikubo, T.; Guan, Y.; Hiyagon, H.; Sugiura, N.; Leshin, L.A.
36Cl, 26Al, and O isotopes in an Allende type B2 CAI: Implications for multiple secondary alteration events in the early solar system
Meteoritics and Planetary Science, 2007年
42, 7-8, 1267, 1279
[査読有り] - Hsu, W.; Guan, Y.; Leshin, L.A.; Ushikubo, T.; Wasserburg, G.J.
A late episode of irradiation in the early solar system: Evidence from extinct36Cl and 26Al in meteorites
Astrophysical Journal, 2006年
640, 1 I, 525, 529
[査読有り] - Yada, T.; Nakamura, T.; Noguchi, T.; Matsumoto, N.; Kusakabe, M.; Hiyagon, H.; Ushikubo, T.; Sugiura, N.; Kojima, H.; Takaoka, N.
Oxygen isotopic and chemical compositions of cosmic spherules collected from the Antarctic ice sheet: Implications for their precursor materials
Geochimica et Cosmochimica Acta, 2005年
69, 24, 5789, 5804
[査読有り] - Sugiura, N.; Mizuno, T.; Ushikubo, T.; Hiyagon, H.
Si and Mg isotope fractionations in melilite in coarse-grained CAIs measured by SIMS
Geochemical Journal, 2004年
38, 5, 405, 415
[査読有り]
MISC
- 牛久保孝行; 羽根由里奈; 木村伸吾
耳石の局所酸素同位体比分析で探るクロマグロ産卵海域の動態
Isotope News(日本アイソトープ協会広報誌), 2024年08月
2024, 8, 20, 24
[招待有り]
筆頭著者, 責任著者 - 牛久保 孝行
Lithium in Zirconの顛末
Journal of the Mass Spectrometry Society of Japan, 2022年04月
70, 2, 135, 136
[招待有り] - 牛久保 孝行
入門講座 精密同位体分析 二次イオン質量分析計を用いた高精度局所同位体比分析手法の開発と応用
ぶんせき(日本分析化学会誌), 2016年10月
2016, 10, 390, 396
[査読有り], [招待有り] - 牛久保 孝行
高精度・微小領域酸素同位体局所分析の取り組み
遊星人(日本惑星科学会誌), 2010年12月
19, 4, 287, 294
[査読有り] - 中村 智樹; 野口 高明; 土'山 明; 牛久保 孝行; 木多 紀子; バレー ジョン; ゾレンスキー マイケル; 嘉数 勇基; 坂本 佳奈子; 増尾 悦子; 上杉 健太朗; 中野 司
スターダスト探査機により回収された短周期彗星81P/ビルド2のコンドリュール
地球化学, 2009年
43, 4, 143, 153
書籍等出版物
講演・口頭発表等
- 牛久保 孝行
酸素同位体比から推定されるコンドルール形成環境
神戸大学惑星科学研究センター CPSセミナー, 2025年10月06日, [招待有り] - 牛久保 孝行; 福田 航平; 中嶋 大輔; 木多 紀子
コンドルールの同位体比データから導かれる原始太陽系円盤の進化過程への制約
JpGU 2025, 2025年05月26日 - Ushikubo T.; Shimizu K.
Systematic analyses of Volatile abundances, Hydrogen and Sulfur isotope ratios of melt inclusions
Goldschmidt Conference 2024, 2024年08月20日 - Ushikubo T.; Tomioka N.; Yamaguchi A.
Isotopic and mineralogical study of carbonates in Aguas Zarcas
Annual Meeting of the Meteoritical Society, 2024年08月01日 - 牛久保 孝行
無水鉱物の同位体比情報から氷や流体の特徴を読み解く
JpGU 2024, 2024年05月26日, [招待有り] - 牛久保 孝行
On-siteと帰還試料の酸素同位体比分析の重要性
Comet Interceptor + 次世代小天体SR合同サイエンス会合, 2023年09月13日 - Ushikubo T; Tani K
Oxygen and silicon isotope systematics of zircons from Izu-Bonin-Mariana arc and the Izu collision zone, a modern analogue of the early evolved crust formation
6th International Archean Symposium, 2023年07月25日 - 牛久保 孝行; 山口 亮; Michael K. Weisberg; Denton S. Ebel; 木村 眞
CM, CRコンドライトとTagish Lake隕石の炭酸塩の炭素、酸素同位体比組成
JpGU 2023, 2023年05月26日 - Ushikubo T; Yamaguchi A; Weisberg M. K; Kimura M; Ebel D. S
Evidence for high d13C and D17O fluid in small bodies accreted in a cold and distant region from the Sun
Lunar and Planetary Science Conference 2023, 2023年03月15日 - 牛久保 孝行
無水鉱物に記録された隕石母天体集積領域の氷の酸素同位体比情報を読み解く
新学術領域「星・惑星形成」2022年度大研究会, 2023年02月20日 - 牛久保 孝行; 清水 健二; 野崎 達生; 鳥本 淳司; 長瀬 敏郎; 久保田 勇祐; 中川 麻悠子; 上野 雄一郎
SIMSを用いた硫化鉱物の局所硫黄2~4同位体比分析高精度化への取り組み
2022年度日本地球化学会, 2022年09月07日 - 牛久保 孝行
太陽系始原ダストの物質科学
始原天体ワークショップ, 2022年03月15日, [招待有り] - Ushikubo T; Yamaguchi A; Weisberg M. K; Kimura M; Ebel D. S
Consistently high d13C carbonates in CR chondrites: Implication for accreted ice in a cold and distant region from the Sun
Lunar and Planetary Science Conference 2022, 2022年03月07日 - 牛久保 孝行
CR vs. CM: 炭素質コンドライトの炭酸塩とコンドルールの同位体組成の比較
水惑星全体会議, 2022年03月02日 - 牛久保 孝行; 木村 眞
タギッシュレイク隕石コンドルールの酸素同位体比組成から見えてくる原始惑星系円盤の揮発性物質分布
JpGU 2021, 2021年06月05日 - USHIKUBO T; KIMURA M
Oxygen isotope systematics of chondrules and olivine fragments from Tagish Lake C2 chondrite
The 11th Symposium on Polar Science, 2020年12月03日 - 牛久保 孝行
コンドルールから原始惑星系円盤での固体粒子の移動を探る
新学術領域 星惑星形成 大研究会, 2020年10月01日 - 牛久保 孝行; 清水 健二; 野崎 達生; 長瀬 敏郎
高知コア研における硫黄2同位体及び4同位体比局所分析の取り組み
JpGU 2020, 2020年07月14日 - 牛久保 孝行
無水鉱物の酸素同位体比から水の存在を探る
水惑星学全体会議, 2019年11月12日 - USHIKUBO T; SHIMIZU K
Development for in-situ volatile element abundances, and hydrogen and sulfur 2-isotope analyses of silicate glasses by SIMS
82nd Annual Meeting for the Meteoritical Society, 2019年07月09日 - 牛久保 孝行; 木村 眞
タギッシュレイク隕石のコンドルールとアイソレートオリビン粒子の酸素同位体比分布
JpGU 2019, 2019年05月27日 - USHIKUBO T; KIMURA M
Oxygen isotope systematics of chondrules and isolated olivine grains from the Tagish Lake C2 chondrite
Lunar and Planetary Science Conference L, 2019年03月20日 - USHIKUBO T; FUJIYA W
In situ oxygen three-isotope analysis of carbonates with 15um and 3um beam: Preliminary results
Hayabusa 2018, 2018年12月06日 - 牛久保 孝行
コンドルールは飛んで行かない ~珪酸塩球粒の酸素同位体比から原始太陽系星雲での固体粒子の移動を探る~
CPSセミナー, 2018年06月28日, [招待有り] - 牛久保 孝行; 谷 健一郎; Georg R. B
伊豆・小笠原・マリアナ(IBM)島弧と伊豆衝突帯(ICZ)の珪質岩ジルコンの酸素と珪素同位体比の特徴
JpGU2018, 2018年05月21日 - Ushikubo T; Tani K; Georg R. B
Oxygen and silicon isotope ratios of zircons of silicic rocks from the Izu-Bonin-Mariana (IBM) intra-oceanic arc and arc collision zone
GSA 2017, 2017年10月23日 - 牛久保 孝行; 清水 健二; 飯塚 毅; 上原 啓幹; 小宮 剛; 谷 健一郎; 上野 雄一郎
局所同位体比分析で地球地殻形成史を探る
日本地質学会, 2017年09月18日, [招待有り] - 牛久保 孝行; 清水 健二
地球内部・表層環境における硫黄同位体比変動の研究に向けた局所硫黄2同位体比分析手法開発
JpGU2017, 2017年05月24日, [招待有り] - Ushikubo T
Development of in situ Oxygen, Silicon, and Sulfur isotope analysis techniques by SIMS at Kochi Institute, JAMSTEC.
4th International Geoscience Symposium “Precambrian World 2017, 2017年03月03日 - Ushikubo T; Tenner T. J; Hiyagon H; Kita N. T
Evidence for a long duration of the 16O-rich reservoir in the Solar Nebula.
79th Annual Meteoritical Society Meeting, 2016年08月 - Ushikubo T; Shimizu K; Ueno Y
Hydrogen isotope analyses of forearc volcanic glasses from IODP Exp. 352 using IMS 1280-HR
Goldschmidt 2016, 2016年06月28日 - Ushikubo T; Nakashima D; Tenner T. J; Defouilloy C; Kita N. T
Redox and oxygen isotopic change in the solar nebula recorded in chondrules
Workshop on Experimental Cosmochemistry 2016, 2016年06月26日 - 牛久保 孝行; 飯塚 毅; Spicuzza M. J; Valley J. W
アカスタ片麻岩体のジルコンに記録された原始生代における重い酸素同位体比を持つマグマ形成の証拠
JpGU 2016, 2016年05月25日 - Ushikubo T; Iizuka T; Spicuzza M. J; Valley J. W
Consistent occurrence of moderately elevated 18O magmas in Acasta gneiss complex from 4.0 to 3.5 Ga
Goldschmidt 2015, 2015年08月18日 - 牛久保 孝行; 伊藤 元雄; 富岡 尚敬; 清水 健二; 石川 剛志
高知コア研究所におけるSIMSを用いた高精度局所同位体比分析法開発の取り組みと、今後の研究の展望
JpGU 2015, 2015年05月26日 - 牛久保 孝行; Valley J. W
二次イオン質量分析計(SIMS)を用いたジルコンのリチウム濃度・同位体比組成の探求
日本地質学会, 2012年09月17日, [招待有り] - 牛久保 孝行; 木村 眞; Tenner T. J; 中嶋 大輔; Valley J. W; 木多 紀子
コンドルール形成環境の酸素同位体比の特徴
日本地球化学会, 2012年09月12日 - Ushikubo T; Tenner T. J; Hiyagon H; Kita N. T
Lifetime of 16O-rich Oxygen Isotope Reservoir in the Solar Nebula
Workshop of the first solids in the solar system, 2011年11月09日 - 牛久保 孝行
Oxygen isotope systematics of chondrules: An example of combined oxygen-isotope analyses using 3m and 15m primary beams
Biennial GeoSIMS Workshop 6, 2011年11月03日 - Ushikubo T; Kimura M; Kita N. T; Valley J. W
Primordial Oxygen Isotope Reservoirs of the Solar Nebula Recorded in Chondrules from Acfer 094 Carbonaceous Chondrite
Lunar and Planetary Science Conference XLII, 2011年03月08日 - Ushikubo T; Kita N. T; Valley J. W
Recent progress of small spot oxygen isotope analysis at WiscSIMS
Goldschmidt 2010, 2010年06月14日 - Ushikubo T; Kimura M; Nakashima D; Kita N. T
A Combined Study of the Al-Mg Systematics and O Isotope Ratios of Chondrules from the Primitive Carbonaceous Chondrite Acfer 094
Lunar and Planetary Science Conference XLI, 2010年03月05日 - Ushikubo T; Kimura M; Kita N. T; Valley J. W
Oxygen isotopic compositions of phenocrysts in chondrules from the primitive carbonaceous chondrite Acfer 094
Lunar and Planetary Science Conference XL, 2009年03月25日 - Ushikubo T; Kita N. T; Cavosie A. J; Wilde S. A; Rudnick R. L; Valley J. W
Lithium in Jack Hills Zircon: Evidence for extreme weathering of Earth’s Crust at 4300 Ma
Goldschmidt 2008, 2008年07月14日 - Ushikubo T; Kita N. T; Cavosie A. J; Wilde S. A; Rudnick R. L; Valley J. W
Li in >4.0 Ga Jack Hills zircon
5th Biannual GeoSIMS Workshop, 2008年06月14日 - Ushikubo T; Page F. Z; Kita N. T; Riciputi L. R; Valley J. W
Sub-um size high precision analysis of d18O in zircon by SIMS
Goldschmidt 2007, 2007年08月 - USHIKUBO T; Kita N. T; Valley J. W; Weidel B; Kitchell J. F; Carpenter S. R; Cole J. J; Pace M. L
In situ C and O isotopic measurements of a fish otolith
SIMS in Space Sciences: The Zinner Impact, 2007年02月03日 - Ushikubo T; Guan Y; Hiyagon H; Sugiura N; Leshin L. A
36Cl, 26Al, and oxygen isotopes in an Allende CAI: Implications for secondary alteration in the early Solar System
Lunar and Planetary Science Conference XXXVII, 2006年03月16日 - Ushikubo T; Guan Y; Leshin L. A
10Be-10B systematics of hibonite-bearing inclusions from Murchison (CM2) and Kainsaz (CO3)
Lunar and Planetary Science Conference XXXVII, 2006年03月16日 - Ushikubo T; Guan Y; Leshin L. A
36Cl and 26Al in the Allende carbonaceous chondrite: Implications for secondary alteration in the early Solar System
4th Biennial Goechemical SIMS Workshop, 2005年12月10日 - Ushikubo T; Hiyagon H; Sugiura N
Oxygen, Ca, and Ti iostopic compositions of hibonite-bearing inclusions
Lunar and Planetary Science Conference XXXVI, 2005年03月17日 - Ushikubo T; Hiyagon H; Hashimoto A; Kimura M
Oxygen isotopic composition and REE abundances of a Zr-rich-oxide-bearing inclusion from Murchison
Annual Meeting of the Meteoritical Society, 2004年08月05日 - Ushikubo T; Hiyagon H; Kimra M; Hashimoto A
An ultra-refractory nodule in an Allende fine-grained inclusion: Isotopic studies using SIMS
Goldschmidt 2003, 2003年09月08日 - Ushikubo T; Hirain K; Hiyagon H
Mg isotopic compositions of W-L and accretionary rims of CAIs
Goldschmidt 2002, 2002年08月20日 - Ushikubo T; Hirai K; Hiyagon H
Mg isotopic compositions of Wark-Lovering and accretionary rims of CAIs
Lunar and Planetary Science Conference XXXIII, 2002年03月14日 - Ushikubo T; Hiyagon H; Sugiura N
A FUN-like hibonite inclusion in Kainsaz CO3 chondrite with large 41K and 26Mg excesses at the level of normal CAIs
Lunar and Planetary Science Conference XXXI, 2000年03月15日 - Ushikubo T; Hiyagon H; Sugiura N; Ulyanov A. A
Combined ion microprobe studies of O and Mg isotopes in an Efremovka CAI
Lunar and Planetary Science Conference XXX, 1999年03月16日 - Ushikubo T; Hiyagon H; Sugiura N; Ulyanov A. A
Mg isotopic anomaly of two types of anorthite in CAIs
Antarctic meteorite XXIV, 1999年03月16日 - Ushikubo T; Hiyagon H; Sugiura N
A preliminary experiment for K isotope analysis of CAI
Antarctic meteorite XXIII, 1998年06月12日
