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Juske Horita

Senior Research Scientist

Tokyo Institute of Technology, Ph.D., Geochemistry

Staff Member, Oak Ridge National Laboratory, 1995 to Present

Research Interests:

 General stable isotope geochemistry

 Experimental and theoretical isotope geochemistry

 Neutron applications to fluids to minerals to extreme conditions

 Geologic CO2 sequestration

 Isotope hydrology

 Environmental and forensic stable isotope geochemistry

Professional Societies:

 The Geochemical Society
  American Geophysical Union
 The Geological Society of America
 American Chemical Society - Geochemistry Division
 Geochemical Society of Japan

Selected Publications:

  1. Polyakov, V.B., Horita, J., Cole, D.R., and Chialvo, A.A., "Novel corresponding - states principle approach for the equation of state of isotopologues: H218O as an example", J. Phys. Chem., 111, 393-401 (2007).
  2. Chialvo, A.A. and Horita, J., "Liquid-vapor isotopic fractionation factors of diatomic fluids: A direct comparison between simulation and experiment", J. Chem. Phys., 125, 034510 (2006).
  3. Horita, J., "Stable isotope thermometry: There is more to it than temperature", Geochemical Journal, 39, 481-496 (2005).
  4. Horita, J., "Some perspectives on isotope signatures for early life", Chemical Geology, 218, 171-186 (2005).
  5. Horita, J. and Kendall, C., "Stable isotope analyses of water and aqueous solutions by conventional dual-inlet mass spectrometry." In Handbook of Stable Isotope Analytical Techniques, Volume-I (ed. P.A. de Groot) Elsevier, 1-37 (2004).
  6. Horita, J., Zimmermann, H., and Holland, H.D., "Chemical evolution of seawater during the Phanerozoic: Implications from the record of marine evaporates", Geochim. Cosmochim. Acta, 66, 3733-3756 (2002).
  7. Horita, J., Cole, D.R., Polyakov, V.B., and Driesner, T., "Experimental and theoretical study of pressure effects on hydrogen isotope fractionation in the system brucite-water at elevated temperatures", Geochim. Cosmochim. Acta, 66, 3769-3788 (2002).
  8. Horita, J., "Carbon isotope exchange in the system CO2-CH4 at elevated temperatures", Geochim. Cosmochim. Acta, 65, 1907-1919 (2001)
  9. Horita, J. and Berndt, M.E., "Abiogenic methane formation and isotopic fractionation under hydrothermal conditions", Science, 285, 1055-1057 (1999).

  10. Horita, J., Cole, D.R., and Wesolowski, D.J., "The activity-composition relationship of oxygen and hydrogen isotopes in aqueous salt solutions. III: Vapor-liquid water equilibration of NaCl solutions to 350°C", Geochim. Cosmochim. Acta, 59, 1139-1151 (1995)

Aqueous Chemistry & Geochemistry Group Staff

 Provided by Oak Ridge National Laboratory's Chemical Sciences Division 
Rev: March 2009