Ron Sletten
  Research Associate Professor
  Office: JHN-363
     ESS Mailing Address
  Phone: 206-543-0571
  Fax: 206-543-0489 (shared)
  Email: sletten @ ess.washington.edu
  Homepage: http://depts.washington.edu/icylands/

  Research Groups: Cosmogenic/Stable Isotope Geochemistry, Quaternary Research

Areas of Interest:
Permafrost soils and periglacial geomorphology, soil and water chemistry, climate

Current Research Interests:
Ron Sletten studies chemical and physical processes in surficial deposits including how they are influenced by biological processes. His primary interest is in permafrost-influenced soil and has worked extensively in Alaska, High Arctic field sites (Svalbard, Devon Island, Greenland) and the Dry Valleys, Antarctica. His active research includes carbon cycling in Greenland soils; ground ice and surface stability of the Dry Valleys; and diffusion in frozen porous media.

Sletten also conducts research on diverse topics in soil and water chemistry including natural organic matter, heavy metals; and diffusion of water in frozen soils. His laboratory includes an ICP-OES, ICP-MS, laser diffraction particle size, carbon analyzer. He develops instruments for automatic monitoring of soil processes using data loggers and ground water sampling equipment.

Selected Publications:

Hagedorn, B., R. S. Sletten, B. Hallet, D. F. McTigue and E. J. Steig (2010). Ground ice recharge via brine transport in frozen soils of Victoria Valley, Antarctica: Insights from modeling delta O-18 and delta D profiles. Geochimica et Cosmochimica Acta 74(2): 435-448.

Burnham, J. H. and R. S. Sletten (2010). Spatial distribution of soil organic carbon in northwest Greenland and underestimates of high Arctic carbon stores. Global Biogeochemical Cycles 24: 14p.

Sletten, R. S., D. H. Mann, W. C. McIntosh, N. W. Dunbar, M. L. Prentice, W. Dickinson and J. O. Stone (2007). Possible redeposition of volcanic ashes in the Dry Valleys by glacier transport: in Antarctica. A Keystone in a Changing World - Online Proceedings of the 10th ISAES. A. K. Cooper, C. R. Raymond and ISAES Editorial Team: Extended Abstract 158, 4 p.


Ng, F., B. Hallet, R. S. Sletten and J. O. Stone (2005). Fast-growing till over ancient ice in Beacon Valley, Antarctica. Geology 33(2): 121-124.<br>
  <a href="http://www.gsajournals.org/archive/0091-7613/33/2/pdf/i0091-7613-33-2-121.pdf">http://www.gsajournals.org/archive/0091-7613/33/2/pdf/i0091-7613-33-2-121.pdf</a>
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Sletten, R. S., B. Hallet and R. C. Fletcher (2003). Resurfacing time of terrestrial surfaces by the formation and maturation of polygonal patterned ground. Journal of Geophysical Research 108(E4): 8044, doi:10.1029/2002JE001914.<br>
<a href="http://www.agu.org/journals/je/je0304/2002JE001914/2002JE001914.pdf">http://www.agu.org/journals/je/je0304/2002JE001914/2002JE001914.pdf</a>
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Anders, A. M., R. S. Sletten, L. A. Derry and B. Hallet (2003). Germanium/silicon ratios in the Copper River Basin, Alaska: Weathering and partitioning in periglacial versus glacial environments. Journal of Geophysical Research 108(F1): 6005, doi:10.1029/2003JF000026. <br>
<a href="http://www.agu.org/journals/jf/jf0304/2003JF000026/2003JF000026.pdf">http://www.agu.org/journals/jf/jf0304/2003JF000026/2003JF000026.pdf</a>
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Lombi, E., R.S. Sletten, and W.W. Wenzel (2000). Sequentially extracted arsenic from different size fractions of contaminated soils, Water Air and Soil Pollution, 124 (3-4), 319-332