Research Associate Professor
ESS Mailing Address
Fax: 206-543-0489 (shared)
Email: sletten @ ess.washington.edu
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.
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> <br><br> 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> <br><br> 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> <br><br> 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