| 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 | 489 | 2009 |
| 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 | 454 | 2014 |
| 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 | 248 | 2008 |
| 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 | 200 | 2012 |
| 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 | 197 | 2008 |
| 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 | 162 | 2013 |
| 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 | 152 | 2009 |
| Evolution of protoplanetary disk inferred from 26Al chronology of individual chondrules NT Kita, T Ushikubo Meteoritics & Planetary Science 47 (7), 1108-1119, 2012 | 139 | 2012 |
| 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 | 132 | 2015 |
| 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 | 130 | 2007 |
| 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 | 129 | 2011 |
| 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 | 128 | 2015 |
| 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 | 128 | 2013 |
| 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 | 121 | 2012 |
| 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 | 120 | 2012 |
| 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 | 111 | 2012 |
| 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 | 109 | 2013 |
| 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 | 108 | 2011 |
| 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 | 106 | 2011 |
| 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 | 98 | 2011 |
NORIKO T. KITAUniversity of Wisconsin-Madison確認したメール アドレス: geology.wisc.edu
