Simon R. Poulson

BA University of Cambridge 1985
PhD The Pennsylvania State University 1990

Research Associate Professor
Environmental and stable isotope geochemistry

Dept. of Geological Sciences & Engineering, MS-172
University of Nevada, Reno
1664 N. Virginia St.
Reno, NV 89557-0138
. USA
(775) 784-1104
Fax: (775) 784-1833
Email: poulson@mines.unr.edu

Experience:
    • 2006 - present   Research Associate Professor
            Dept. of Geological Sci. & Eng., University of Nevada, Reno
    • 2006   JSPS Visiting Research Fellow
            Dept. of Earth Sciences, Okayama University
, Japan
    • 1998 - 2006   Research Assistant Professor
            Dept. of Geological Sci. & Eng., University of Nevada, Reno

    • 2001   JSPS Visiting Research Fellow
            Dept. of Chemistry, Tokyo Metropolitan University, Japan
    • 1994 - 1998   Post-Doctoral Research Associate
            Dept. of Geology & Geophysics, University of Wyoming
    • 1992 - 1993   Post-Doctoral Research Associate
            Dept. of Earth Sciences, Dartmouth College
    • 1991   Visiting Research Fellow
            Dept. of Geological Sciences, Tohoku University, Sendai, Japan
    • 1990 - 1992   Post-Doctoral Research Associate
            Dept. of Geosciences, The Pennsylvania State University   

Research Interests:

My current research interests are strongly focused upon environmental contaminant geochemistry, and in particular, applying stable isotope techniques to studying the behavior of ground water contaminants. Stable isotope geochemistry has an important role to play in understanding the behavior of environmental contaminants, as it can provide insight as to the various chemical, physical, and biological processes controlling the behavior of the contaminant. Hence, stable isotope geochemistry is of great value when studying the remediation of environmental contaminants, whether it be effected by engineered treatment or by natural degradation. Moreover, stable isotope geochemistry can provide information as to the original source of the contamination, so it can also be used to help prevent further contamination by controlling the original source of the problem, once this source is identified.

The most well-known application of stable isotope geochemistry to study contaminant behavior is using N and O isotopes to study nitrate contamination in ground water.  More recently, C, H, and Cl stable isotope analysis has been applied to the study of environmental organic contaminants such as monoaromatic hydrocarbons (benzene, toluene, ethylbenzene, xylenes) and chlorinated solvents (trichloroethylene, methylene chloride, chloroform). However, the technique has possible future application to almost any organic contaminant of concern, including other gasoline components, gasoline additives such as MTBE, pesticides, and explosive munitions such as TNT.  Stable isotope geochemistry also has possible application to the study of the complex biogeochemical behavior of inorganic contaminants such as selenium, which is a contaminant of particular concern in the arid states of the western U.S.
 

Recent Publications:

• Poulson S.R. and Naraoka H. (2006) Carbon Isotope Fractionation during Degradation of Benzene, Trichloroethene, and Tetrachloroethene under Ultraviolet Light. Geochemical J., 40: 291-296.

• Benson L.V., Hattori E.M., Taylor H.E., Poulson S.R., and Jolie E.A. (2006) Isotope sourcing of prehistoric willow and tule textiles recovered from western Great Basin rockshelters – proof of concept.  J. Archaeol. Sci., in press.

• Gammons C.H., Poulson S.R., Pellicori D.A., Reed P.J., Roesler A.J. and Petrescu E.M. (2006) The hydrogen and oxygen isotopic composition of precipitation, evaporated mine water, and river water in Butte, Montana, USA. J. Hydrology, in press.

• Poulson S.R. (2005) The effect of sulfate-δ18O upon on-line sulfate-δ34S analysis, and implications for measurements of δ33S and Δ33S. Rapid Commun. Mass Spectrom., 19: 105-107.

• Parker S.R., Poulson S.R., Gammons C.H. and DeGrandpre M.D. (2005) Diel cycles in stable isotopic composition of dissolved O2 and DIC in a river due to biogeochemical processes.  Environ. Sci. Tech., 39: 7134-7140.

• Pellicori D.A., Gammons C.H. and Poulson S.R. (2005) Geochemistry and stable isotope composition of the Berkeley pit lake and surrounding mine waters, Butte, Montana.  Appl. Geochem., 20: 2116-2137.

• Chikaraishi Y., Naraoka H. and Poulson S.R. (2004) Hydrogen and carbon isotopic fractionations of lipid biosynthesis among terrestrial (C3, C4 and CAM) and aquatic plants. Phytochemistry, 65: 1369-1381.

• Chikaraishi Y., Naraoka H. and Poulson S.R. (2004) Carbon and hydrogen isotopic fractionation during lipid biosynthesis in a higher plant (Cryptomeria japonica).   Phytochemistry, 65: 323-330.

• Poulson S.R. and John B.E. (2003) Stable isotope and trace-element geochemistry of the basal Bouse Formation carbonate, southwestern USA: Implications for the Pliocene uplift history of the Colorado Plateau. Geol. Soc. America Bull., 115: 434-444.

• Gammons C.H., Poulson S.R., Metesh J.J., Duaime T.E. and Henne A.R. (2003) Geochemistry and isotopic composition of H2S-rich flooded mine waters, Butte, Montana. Mine Water and the Environment, 22: 141-148.

• Madison J.P., Gammons C.H., Poulson S.R. and Jonas J.P. (2003) Oxidation of Pyrite by Ferric Iron in the Acidic Berkeley Pit Lake, Montana, USA. In: Proceedings 6th International Conference on Acid Rock Drainage (6th ICARD), Cairns, Australia, pp. 1073-1078.

• Poulson S.R. and Naraoka H. (2002) Carbon Isotope Fractionation during Permanganate Oxidation of Chlorinated Ethylenes (cDCE, TCE, PCE).  Environ. Sci. Tech., 36: 3270-3274.




Last update: 26 May 2006