Reika Yokochi
- Research Scientist at the Dept. of Geophysical Sciences, The University of Chicago (Apr 2010 - present)
- Visiting Research Assistant Professor at the Dept. of Earth and Environ. Sci., University of Illinois at Chicago (Apr 2008 - present)
- Jan 2009 - May 2009, Visitor in Geochemistry, California Institute of Technology
- Sept 2005 - Mar 2008, Postdoctoral Research Associate, University of Illinois at Chicago
- 2005 Ph.D. Institut National Polytechnique de Lorraine, Nancy, France
- 2001 M.Sc. Hiroshima University, Japan
- 1999 B.Sc. Hiroshima University, Japan
- Dec 2012 NASA Planetary Science Early Career Fellow
- Dec 2012 Young Scientist Award, Geochemistry Research Association of Japan
- R. Yokochi, N.C. Sturchio, R. Purtschert, W. Jiang, G.-M. Yang, P. Mueller, Z.-T. Lu, and
B.M. Kennedy, Noble Gas Radionuclides in Yellowstone Geothermal Gas Emissions: A Reconnaissance.
Chemical Geology, 339, 43-51.
- R. Purtschert, R. Yokochi and N. Sturchio (2013) 81Kr dating of old groundwater. in "Dating
old groundwater: A guide book", A. Suckow (Ed.), IAEA, pp. 400
- R. Yokochi, N. Sturchio, R. Purtschert (2012). Determination of crustal
fluid residence times using nucleogenic 39Ar. Geochimica et Cosmochimica Acta, 88, 19-26.
- R. Yokochi, U. Marboeuf, E. Quirico & B. Schmitt (2012). Pressure dependent trace gas
trapping in amorphous water ice at 77K: Implications for determining conditions of comet
formation. Icarus, 218 (2), 760-770.
- R. Yokochi & A.M. Mandell (2011) Water, delivery on Earth. in Encyclopedia of Astrobiology,
M. Gargaud, R. Amils, J. C. Quintanilla, H. J. Cleaves, W. M. Irvine, D. L. Pinti, & M. Viso
(Eds.), Springer, pp. 1770-1773.
- W. Williams, Lu, Z.-T., K. Rudinger, C. Xu, R. Yokochi & P. Mueller (2011). Spectroscopic
study of the cycling transition 4s[3/2]2-4p[5/2]3 at 811.8 nm in 39Ar:
Hyperne structure and isotope shift. Physical Review A, 83, 012512
- . Yokochi, B. Marty, G. Chazot and P. Burnard, Nitrogen in peridotite xenolith: Large
isotopic heterogeneity and N2/Ar enrichment. (2009) Geochimica et Cosmochimica Acta 73,
4843-4861.
- N. Coltice, B. Marty and R. Yokochi (2009) Xenon constraints on the thermal evolution of the
Earth. Chemical Geology 266 (1-2), 4-9.
- R. Yokochi, N. Sturchio and L. Heraty (2008) Method for purication of Kr from environmental
samples for analysis of radiokrypton isotopes. Analytical Chemistry 80(22), 8688-8693.
- R. Yokochi, D. Ohnenstetter and Y. Sano (2008) Intra-grain variation in δ13C and nitrogen
concentration associated with textural heterogeneities of carbonado. The Canadian Mineralogist 46(5),
1283-1296.
- B. Marty and R. Yokochi (2006) Water in the Early Earth. in Water in Nominally anhydrous
minerals (Reviews in Mineralogy and Geochemistry) 62, 421-450.
- P.-H. Blard, R. Pik, J. Lav, D. Bourls, P.G. Burnard, R. Yokochi, B. Marty and F. Trusdell
(2006) Cosmogenic 3He production rates revisited from evidences of grain size dependent
release of matrix-sited helium. Earth and Planetary Science Letters 247 (3-4), 222-234.
- R. Yokochi and B. Marty (2006) Nitrogen isotope disequilibrium in mantle xenoliths, Fast
chemical and isotopic exchange of nitrogen during reaction with hot molybdenum. Geochemistry Geophysics
Geosystems 7 (1), Q07004, doi:10.1029.
- R. Yokochi and B. Marty (2005) Geochemical Constraints on Mantle Dynamics in the Hadean.
Earth and Planetary Science Letters 238, 17-30.
- R. Yokochi, B. Marty, R. Pik and P. Burnard (2005). High 3He/4He ratios in peridotite
xenoliths from SW Japan revisited: Evidence for cosmogenic 3He released by vacuum crushing.
Geochemistry Geophysics Geosystems 1 (6), Q01004, doi:10.1029.
- R. Yokochi and B. Marty (2004) A determination of neon isotopic composition of the deep
mantle. Earth and Planetary Science Letters 225, 77-88.
- Y. Sano, T. Kosugi, N. Takahata and R. Yokochi (2004) Helium isotopes in Pacic waters from
adjacent region of Honshu, Japan. Journal of Oceanography 60, 625-630.
- N. Takahata, R. Yokochi, Y. Nishio and Y. Sano (2003) Volatile element isotope systematics
at Ontake volcano, Japan. Geochemical Journal 37, 299-310.
- Y. Sano, R. Yokochi, K. Terada, M.L. Chaves and M. Ozima (2002) Ion Probe Pb-Pb dating
of carbonado, polycrystalline diamond. Precambrian Research 133, 155-168.