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Takayuki USHIKUBO
Takayuki USHIKUBO
Kochi Institute, JAMSTEC
Verified email at jamstec.go.jp
Title
Cited by
Cited by
Year
High precision SIMS oxygen isotope analysis and the effect of sample topography
NT Kita, T Ushikubo, B Fu, JW Valley
Chemical Geology 264 (1-4), 43-57, 2009
4862009
Hadean age for a post-magma-ocean zircon confirmed by atom-probe tomography
JW Valley, AJ Cavosie, T Ushikubo, DA Reinhard, DF Lawrence, ...
Nature Geoscience 7 (3), 219-223, 2014
4512014
Chondrulelike objects in short-period comet 81P/Wild 2
T Nakamura, T Noguchi, A Tsuchiyama, T Ushikubo, NT Kita, JW Valley, ...
Science 321 (5896), 1664-1667, 2008
2462008
Lithium in Jack Hills zircons: Evidence for extensive weathering of Earth's earliest crust
T Ushikubo, NT Kita, AJ Cavosie, SA Wilde, RL Rudnick, JW Valley
Earth and Planetary Science Letters 272 (3-4), 666-676, 2008
1962008
Primordial oxygen isotope reservoirs of the solar nebula recorded in chondrules in Acfer 094 carbonaceous chondrite
T Ushikubo, M Kimura, NT Kita, JW Valley
Geochimica et Cosmochimica Acta 90, 242-264, 2012
1942012
26Al‐26Mg isotope systematics of the first solids in the early solar system
NT Kita, QZ Yin, GJ MacPherson, T Ushikubo, B Jacobsen, K Nagashima, ...
Meteoritics & Planetary Science 48 (8), 1383-1400, 2013
1612013
Intratest oxygen isotope variability in the planktonic foraminifer N. pachyderma: Real vs. apparent vital effects by ion microprobe
R Kozdon, T Ushikubo, NT Kita, M Spicuzza, JW Valley
Chemical Geology 258 (3-4), 327-337, 2009
1512009
Evolution of protoplanetary disk inferred from 26Al chronology of individual chondrules
NT Kita, T Ushikubo
Meteoritics & Planetary Science 47 (7), 1108-1119, 2012
1382012
Oxygen isotope ratios of FeO-poor chondrules in CR3 chondrites: Influence of dust enrichment and H2O during chondrule formation
TJ Tenner, D Nakashima, T Ushikubo, NT Kita, MK Weisberg
Geochimica et Cosmochimica Acta 148, 228-250, 2015
1322015
High-precision oxygen isotope analysis of picogram samples reveals 2 μm gradients and slow diffusion in zircon
FZ Page, T Ushikubo, NT Kita, LR Riciputi, JW Valley
American Mineralogist 92 (10), 1772-1775, 2007
1302007
Perspectives on the origin of plagiogranite in ophiolites from oxygen isotopes in zircon
CB Grimes, T Ushikubo, R Kozdon, JW Valley
Lithos 179, 48-66, 2013
1282013
Presidential address. Nano-and micro-geochronology in Hadean and Archean zircons by atom-probe tomography and SIMS: New tools for old minerals
JW Valley, DA Reinhard, AJ Cavosie, T Ushikubo, DF Lawrence, ...
American Mineralogist 100 (7), 1355-1377, 2015
1272015
Uniformly mantle-like δ18O in zircons from oceanic plagiogranites and gabbros
CB Grimes, T Ushikubo, BE John, JW Valley
Contributions to Mineralogy and Petrology 161, 13-33, 2011
1272011
Seasonal resolution of Eastern Mediterranean climate change since 34 ka from a Soreq Cave speleothem
IJ Orland, M Bar-Matthews, A Ayalon, A Matthews, R Kozdon, T Ushikubo, ...
Geochimica et Cosmochimica Acta 89, 240-255, 2012
1212012
Well-resolved variations in the formation ages for Ca–Al-rich inclusions in the early Solar System
GJ MacPherson, NT Kita, T Ushikubo, ES Bullock, AM Davis
Earth and Planetary Science Letters 331, 43-54, 2012
1192012
Oxygen isotope systematics of chondrule phenocrysts from the CO3. 0 chondrite Yamato 81020: Evidence for two distinct oxygen isotope reservoirs
TJ Tenner, T Ushikubo, E Kurahashi, NT Kita, H Nagahara
Geochimica et Cosmochimica Acta 102, 226-245, 2013
1082013
SIMS analyses of silicon and oxygen isotope ratios for quartz from Archean and Paleoproterozoic banded iron formations
PR Heck, JM Huberty, NT Kita, T Ushikubo, R Kozdon, JW Valley
Geochimica et Cosmochimica Acta 75 (20), 5879-5891, 2011
1082011
Li isotopes and trace elements as a petrogenetic tracer in zircon: insights from Archean TTGs and sanukitoids
AS Bouvier, T Ushikubo, NT Kita, AJ Cavosie, R Kozdon, JW Valley
Contributions to Mineralogy and Petrology 163, 745-768, 2012
1072012
Constraining atmospheric oxygen and seawater sulfate concentrations during Paleoproterozoic glaciation: In situ sulfur three-isotope microanalysis of pyrite from the Turee …
KH Williford, MJ Van Kranendonk, T Ushikubo, R Kozdon, JW Valley
Geochimica et Cosmochimica Acta 75 (19), 5686-5705, 2011
1062011
Oxygen isotope systematics of chondrules in the Allende CV3 chondrite: High precision ion microprobe studies
NG Rudraswami, T Ushikubo, D Nakashima, NT Kita
Geochimica et Cosmochimica Acta 75 (23), 7596-7611, 2011
982011
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