Shigekazu Yoneda

Papers

  • Yokoyama, T., K. Misawa, O. Okano, C.-Y. Shih, L. E. Nyquist, J. I. Simon, M. J. Tappa and S. Yoneda, 2013.
    Rb-Sr isotopic systematics of alkali-rich fragments in the Yamato-74442 LL-chondritic breccia.
    Earth and Planetary Science Letters, 366: 38-48.
  • Hidaka, H. and S. Yoneda, 2013.
    Radioactive Cs capture in the early solar system.
    Scientific Reports, 3: 1330 (6pp).
  • Yoneda, S., H. Hidaka, S. Machida, T. Yokoyama, K. Misawa, S. Sasaki and N. Kanazawa, 2012.
    Special features of the new thermal ionization mass spectrometer installed at the National Museum of Nature and Science, and their precision, reproducibility and long term stability on isotopic ratio measurements.
    Bulletin of the National Museum of Nature and Science, Series E, 35: 1-6.
  • Hidaka, H., T. Kondo and S. Yoneda, 2012.
    Heterogeneous isotopic anomalies of Sm and Gd in the Norton County meteorite: Evidence for irradiation from the active early Sun.
    The Astrophysical Journal, 746: 132 (8pp).
  • Hidaka, H. & S. Yoneda, 2011. Diverse nucleosynthetic components in barium isotopes of carbonaceous chondrites: Incomplete mixing of s- and r-process isotopes and extinct 135Cs in the early solar system. Geochimica et Cosmochimica Acta, 75: 3687-3697.
  • Hidaka, H. & S. Yoneda, 2011. Neutron capture records of mesosiderites and an iron meteorite. Geochimica et Cosmochimica Acta, 75: 5706-5715
  • Hidaka, H., S. Yoneda & K. Nishiizumi, 2010. A neutron capture study of the Jilin chondrite. Meteoritics and Planetary Sciences, 45: 1973-1981.
  • Hidaka, H., S. Yoneda & K. Nishiizumi, 2009. Cosmic-ray exposure histories of Martian meteorites studied from neutron capture reactions of Sm and Gd isotopes. Earth and Planetary Science Letters, 288: 564-571.
  • Hidaka, H. & S. Yoneda, 2009. Isotopic evidence of non-thermalized neutron irradiation in solar-gas-rich meteorites: Possibility of the interaction with solar neutrons and activity from the early Sun. Earth and Planetary Science Letters, 285: 173-178.
  • Hidaka, H. & S. Yoneda, 2007. Sm and Gd isotopic shifts of Apollo 16 and 17 drill stem samples and their implications for regolith history. Geochimica et Cosmochimica Acta, 71: 1074-1086.
  • Hidaka, H., S. Yoneda & K. Marti, 2006. Regolith history of the aubritic meteorite parent body revealed by neutron capture effects on Sm and Gd isotopes. Geochimica et Cosmochimica Acta, 70: 3449-3456.
  • Naraoka, H., H. Mita, M. Komiya, S. Yoneda, H. Kojima, & A. Shimoyama, 2004. A chemical sequence of macromolecular organic matter in the CM chondrites. Meteoritics and Planetary Sciences, 39: 401-406.
  • Miyata, Y., S. Nakai, & S. Yoneda, 2004. Evaluation of chlorine isotope blank in Cl-37/Cl-35 isotopic measurements using total evaporation thermal ionization mass spectrometry (TE-TIMS). Bulletin of the National Science Museum, Series E, 27: 21-26.
  • Park, J., R. Okazaki, M. Kusakabe, K. Nagao, & S. Yoneda, 2003. Noble gas and oxygen isotopic compositions of Towada H6-chondrite from Aomori Prefecture, Japan. Geochemical Journal, 37: 639-648.
  • Hidaka, H., Y. Ohta, & S. Yoneda, 2003. Nucleosynthetic components of the early solar system inferred from Ba isotopic compositions in carbonaceous chondrites. Earth and Planetary Science Letters, 214: 455-466.
  • Oura, Y., M. Ebihara, S. Yoneda, S. & N. Nakamura, 2002. Chemical composition of the Kobe meteorite; Neutron-induced prompt gamma ray analysis study. Geochemical Journal, 36: 295-307.
  • Yoneda, S., T. Nagamine, Y. Oura, & M. Ebihara, 2002. Precise determination of the Mn-53/Mn-55 isotopic ratio in the ALH77250 iron meteorite. Bulletin of the National Science Museum, Series E, 25: 7-14.
  • Hidaka, H., Y. Ohta, S. Yoneda & J.R. DeLaeter, 2001. Isotopic search for live 135Cs in the early solar system and possibility of 135Cs-135Ba chronometer. Earth and Planetary Science Letters, 193: 459-466
  • Shimizu, H., T. Kunimaru, S. Yoneda & M. Adachi, 2001. Sources and depositional environments of some Permian and Triassic cherts: Significance of Rb-Sr and Sm-Nd isotopic and REE abundance data. Journal of Geology, 109: 105-125
  • Hidaka, H., M. Ebihara. & S. Yoneda, 2000. Isotopic study for neutron capture effects on Sm and Gd in chondrites. Earth and Planetary Science Letters, 180: 29-37
  • Tanaka, T., S. Togashi, H. Kamioka, H. Amakawa, H. Kagami, T. Hamamoto, M. Yuhara, Y. Orihashi, S. Yoneda, H. Shimizu, T. Kunimaru, K. Takahashi, T. Yanagi, T. Nakao, H. Fujimaki, R. Shinjyo, Y. Asahara, M. Tanimizu & C. Dragusanu, 2000. JNdi-1: A neodymium isotope reference in consistency with LaJolla neodymium. Chemical Geology (Isotope Geoscience), 168: 279-281
  • Hidaka, H., M. Ebihara & S. Yoneda, 2000. Neutron capture effects on Sm, Eu and Gd in Apollo 15 deep drill core samples. Meteoritics and Planetary Sciences, 35: 581-589
  • Hidaka, H., M. Ebihara & S. Yoneda, 1999. High fluences of neutrons determined from Sm and Gd isotopic compositions in aubrites. Earth and Planetary Science Letters, 173: 41-51
  • Yoneda, S. & K. G. Heumann, 1998. Formation of negative thermal ions from a mixed solution of platinum group elements. Bull. National Science Museum, Tokyo, Ser. E, 21: 1-7
  • Yoneda, S., M. Shima, H. Hidaka & M. Ebihara, 1995. An attempt of isotopic abundance determination of natural radioactive nuclides, 53Mn and 230Th, by thermal ionization mass spectrometry. Bull. Natn. Sci. Mus., Tokyo, Ser. E, 18: 1-8
  • Yoneda, S. & L. Grossman, 1995. Condensation of CaO-MgO-Al2O3-SiO2 liquids from cosmic gases. Geochimica et Cosmochimica Acta, 59: 3413-3444
  • Honda, M., S. Yoneda & H. Nagai, 1995. Determination for Natural Yttrium Along with Rare Earths by Neutron Activation. Geochemical Journal, 29: 55-65
  • Simon, S. B., S. Yoneda, L. Grossman & A.M. Davis, 1994. A CaAl4O7-bearing refractory spherule from Murchison: evidence for very high temperature melting in the solar nebula. Geochimica et Cosmochimica Acta, 58: 1937-1949

back