Dr. John C. Dixon

Dr. John C. Dixon
 
219 Gearhart Hall
Fayetteville, AR 72701

Phone: (479) 575-5808
FAX: (479) 575-3469
jcdixon@uark.edu
Degrees Ph.D University of Colorado, Boulder, 1983
  M.A. University of Adelaide, South Australia, 1978
  B.A. University of New South Wales, Australia (First Class Honours) 1975
Teaching Areas Oceanography
Geomorphology
Research Methods
Quaternary Environments
Conservation of Natural Resources
History and Philosophy of Geography
M.A. Thesis Supervised
Maguigan, M. 2012. Role of vegetation and environmental characteristics on slope stability in northwest Arkansas.
Howe, K. 2012. Origin of dark streaks on Mars: A simulation Study. (SPAC)
McFee, D. 2012. An alternate approach to ecosystem mapping: Fusing Infrared orthophotography with Multitemporal Landsat Thematic Mapper Satellite Imagery for an object-oriented classification of bottomland and pine-hardwood forest, south eastern Arkansas.
Underwood, K.R. 2009.  The effects of hillslopes on trail degradation, Olympic National Park, Washington
Ph.D, Dissertations Supervised
Beauford, R. E. 2015. Physical Records of Impacts in the Early and Modern Solar System. (With D. Sears). (SPAC).
Auld, K. 2014. Classification and Experimental Simulation of Martian gullies. (SPAC)
Marnocha, C. 2013. Bacterially-mediated formation of rock coatings in Kärkevagge, Swedish Lapland as an astrobiological analog for Mars. (SPAC)
Androes, D.S. 2012. Orbital periodicities reflected in ancient surfaces and implications for early life in the solar system. (SPAC)
Research Interests Professor Dixon's research interests lie primarily in the area of Critical Zone processes and landscape evolution. He is primarily interested in the nature and rates of chemical weathering in Arctic and alpine environments.  Since 1990, he and his research team have worked inScandinavia, especially in Swedish and Norwegian Lapland, as well as in the Jotunheimen of southern Norway.In addition he is also interested in regolith processes in arid environments, especially in the genesis and environmental significance of relict soils.
Professional Biography
Professor, Department of Geosciences, 2000-present
Associate Professor 1987-2000
Assistant Professor 1981-1987
Chairman Department of Geography 1993-1998
Visiting Professor, University of Wollongong, Australia. 1996
Visiting Professor, University of Adelaide, South Australia 1988
2012 Outstanding Faculty Nominee
University of Arkansas
Resident Interhall Congress and Associated Student Government
2010 Outstanding mentor
University of Arkansas
Office of nationally Competitive Awards
Refereed Book Chapters
Dixon, J.C. 2015. Soil morphology in the critical zone: The role of climate, vegetation, and geology in soil formation in the critical zone. In: Principles and Dynamics of the Critical Zone. Giardino, R. and Houser, C. (eds.). Elsevier, Amsterdam. pp. 147-172.
Dixon, J.C. 2015. Lag deposit. In: Kereszturi, A. and Hargitai, H. (eds.) Encyclopedia of Planetary Landforms. Springer Reference, New York. pp. 1108-1112.
Dixon, J.C. 2015. Desert pavement. In: Kereszturi, A. and Hargitai, H. (eds.) Encyclopedia of Planetary Landforms. Springer Reference, New York. pp. 575-579.
Barta, G., Golden, D.C., Dixon, J.C. 2015. Spherule.  In: Kereszturi, A. and Hargitai, H. (eds.) Encyclopedia of Planetary Landforms. Springer Reference, New York. pp. 2040-2047.
 
Brye, K., Booth, T., Dixon, J.C. 2015. Soil property differences among dominant vegetation types in the northern Chihuahuan Desert of Big Bend National Park, Texas, U.S.A. Geoderma Regional, 4, 79-90.
 
Marnocha, C.L. and Dixon, J.C. 2014. Endolithic bacterial communities in rock coatings from Kärkevagge, Swedish Lapland. FEMS Microbiology Ecology, 90, 533-542.
 
Marnocha, C.L. and Dixon, J.C. 2014. Bacterially-facilitated rock coating formation as a component of the geochemical budget of cold climates: An example from Kärkevagge, Swedish Lapland. Geomorphology, 218, 45-51.
 
Marnocha, C.L. and Dixon, J.C. 2013. Bacterial communities in Fe/Mn films, sulfate crusts, and aluminum glazes from Swedish Lapland: Implications for astrobiology on Mars. International Journal of Astrobiology, 12, 345-356.
 
Dixon, J.C. 2014. Lag deposit. In: Kereszturi, A. and Hargitai, H. (eds.) Encyclopedia of Planetary Landforms. Springer-Verlag, Berlin. 5 pp.
 
Dixon, J.C. 2014. Desert pavement. In: Kereszturi, A. and Hargitai, H. (eds.) Encyclopedia of Planetary Landforms. Springer-Verlag, Berlin. 5 pp.
 
Dixon, J.C. 2014. Glacial and periglacial geomorphology. In: Warf, B. (ed.) Oxford Bibliographies in Geography. Oxford University Press. Oxford. 17p.
 
Dorn, R.I., Gordon, S., Allen, C.D., Cerveny, N., Dixon, J.C., Groom,K.M., Hall, K., Harrison, E., Mol, L., Paradise, T.R., Sumner, P., Thompson, T., Turkington, A.V. 2013. The role of fieldwork in rock decay research: Case studies from the fringe. Geomorphology,
 
Beylich, A.A., Decauline, A., Dixon, J.C., Lamoureux, S.F., Orwin, J.F., Otto, J.Ch., Overeem, I., Saemundsson, Th., Warburton, J., Zwolinski, Z. (2012).  The global I.A.G./A.I.G. Sediment Budgets in Cold Environments (SEDIBUD) Programme: Coordinated efforts to quantify sedimentary fluxes and budgets in changing cold environments. Zeitschrift fur Geomorphologie Supplement, 56, 3-8.
 
Dixon, J.C., Campbell, S.W., Durham, B. 2012. Geologic nitrogen and climate change in the geochemical budget of Kärkevagge, Swedish Lapland. Geomorphology. In Press.
 
Shepherd, S.L., Dixon, J.C., Davis, R.K. 2011. Are Ozark streams underfit? Using GIS to re-examine Dury’s theory of underfit streams. Physical Geography, 32, 179-194.
 
Dixon, J.C. 2010. Origin of calcrete and dolocrete in the carbonate mantle of St Vincent Basin, southern South Australia. Cadernos Laboratoir Xeoloxico de Laxe, 35, 109-122.
 
Shepherd, S.L., Dixon, J.C. Davis, R.K., Feinstein, R. 2010. The effect of landuse on channel geometry and sediment distribution in gravel mantled bedrock streams, Illinois River watershed, Arkansas. River Research and Applications,27, 857-866.
 
Bryson, K.L., Dixon, J.C., Sears, D.W.G. 2010. Evaporation effects on the formation of Martian gullies. Icarus, 210, 72-82.
 
Beylich, A.A., Lamoureux, S. F., Decaulne, A., Dixon, J.C. et al. 2010. Sedimentary fluxes and budgets in changing cold environments: The global IAG/AIG sediment budgets in cold environments (SEDIBUD) programme. Geografiska Annaler, 92A, 151-153.
 
Coleman, K.A., Dixon, J.C., Howe, K.L., Roe, L.A., Chevrier,V. 2009. Experimental simulation of Martian gully forms. Planetary and Space Science, 57, 711-716.
 
Thorn, C.E., Darmody, R.G., Holmqvist, J., Jull, A.J.T., Dixon, J.C., Schlyter, P. 2009. Comparison of radiocarbon dating of buried paleosols using arbiscular mycorrhizae spores and bulk soil samples. The Holocene, 19, 1031-1037.
 
Darmody, R.G., Thorn, C.E., Dixon, J.C. 2008. Differential rock weathering in the ‘Valley of Boulders’, Kärkevagge, Swedish Lapland. Geografiska Annaler, 90A, 201-209.
 
Book Chapters
 
Dixon, J.C. 2013. Response of periglacial geomorphic processes to global change. In:James, L.A., Harden, C.P., Clague, J.J. (eds.) Treatise on Geomorphology, Academic Press, San Diego CA. Vol. 13 Geomorphology of Human Disturbances, Climate Change, and Natural Hazards. pp. 176-189.
 
Dixon, J.C. 2013. Pedogenesis with respect to geomorphology. In Pope, G.A. (ed.) Treatise on Geomorphology, Academic Press, San Diego , CA. Vol. 4. Weathering and Soils Geomorphology. pp. 27-43
 
 
Dixon, J.C. 2013. Weathering in cold regions: chemical. In: Pope, G. (ed.). Treatise on Geomorphology, Academic Press, San Diego, CA. Vol.4. Weathering and Soils Geomorphology. pp. 245-257
 
Thorn, C.E., Darmody, R.G., Dixon, J.C. 2011. Rethinking weathering and pedogenesis in alpine periglacial regions: some Scandinavian evidence. In: Martini,I.P., French, H.M., Perez Alberti, A. (eds.) Ice-Margin and Periglacial Processes and Sediments. Geological Society of London Special Publication, 354, 183-193.
 
Dixon, J.C. 2010. Canyonlands and Arches: Windows on landscapes in the American southwest. In: Mignon, P (ed.) Geomorphological Landscapes of the World. Springer Science. London. 39-47.
 
Dixon, J.C. and S. McLaren 2009. Duricrusts. In:  Parsons, A. and A.D. Abrahams (eds) Geomorphology of Desert Environments 2nd. edition. London. Springer. 123-152. 
 
Dixon, J.C. 2009. Aridic soils, patterned ground and desert pavements. In:. Parsons, A. and A.D. Abrahams (eds.) Geomorphology of Desert Environments 2nd edition. London. Springer.101-122.
Darmody, R.G., Thorn, C.E., and Dixon, J.C.  2008.  Competence and decay in the "Valley of Boulders" Karkevagge. Swedish Lapland.  Geografiska Annaler, 90A, 201-209.
Dixon, J.C., Thorn, C.E., and Darmody, R.G.  2008.  Spatial scale andchemical weathering in Karkevagge:  Influences on landscape evolution.  Zeitschrift fur Geomorphologie, 52, Suppl. 1, 27-49, doi: 10.1127/0372-8854/2008/0052S1-0027.
Thorn, C.E., Darmody, R.G., Campbell, S.W. Allen, C.E., and Dixon, J.C.   2007.  Microvariability in the early stages of cobble weathering by environment on a glacier foreland, Storbreen, Jotunheimen, Norway.  Earth Surface Processes and Landforms, 32, 2199-2211, doi: 10.1002/esp.1528.
Darmody, R.G., Thorn, C.E., and Dixon, J.C.  2007.  Pyrite enhanced chemical weathering in Karkevagge, Swedish Lapland.  Bulletin of the Geological Society of America, 119, 1477-1485, doi: 10.1130/B26228.1.
Dixon, J.C.  2006.  Scale in periglacial geomorphology.  Geomorphologie:  Relief, Processus, Environment.  Summer, #3, 175-186.
 
Thorn, C.E., Dixon, J.C., Darmody, R.G., and Allen, C.E. 2006. Ten years (1994-2004) of ‘potential’ weathering in Kärkevagge, Swedish Lapland.  Earth Surface Processes and Landforms.  31, 992-1002, doi: 10.1002/esp.1323.
Thorn, C.E., Dixon, J.C., Darmody, R.G., and Allen, C.E. 2006. A ten-year record of the weathering rates of surficial pebbles, Kärkevagge, Swedish Lapland.  Catena, 65, 272-278.
Dixon, J.C., Campbell, S.W., Thorn, C.E., and Darmody, R.G. 2006 Incipient weathering rind development on introduced machine-polished granite disks in an Arctic environment, northern Scandinavia. Earth Surface Processes and Landforms, 31, 111-121, doi: 10.1002/esp.1241.   
Dixon, J.C. and Thorn, C.E. 2005.  Chemical weathering and landscape development in mid-latitude alpine environments.  Geomorphology, 67, 127-145. 
Dixon, J.C., Thorn, C.E., and Darmody, R.G.  2004. Measuring the extent of chemical weathering in subarctic alpine environments: Implications for future research.  Polar Geography, 28, 63-75, doi: 10.1080/789610160.
Darmody, R.G., Thorn, C.E., Schlyter, P., and Dixon, J.C.  2004. Relationship of vegetation distribution to soil properties in Kärkevagge Swedish Lapland.   Arctic, Antarctic, and Alpine Research, 36, 21-32, doi: 10.1657/1523-0430(2004)036[0021:ROVDTS]2.0.CO;2.
Dixon, B., Scott, H.D., Dixon, J.C., and Steele,K.F.  2002. Prediction of aquifer vulnerability to pesticides using fuzzy logic-based models at a regional scale.  Physical Geography, 23, 130-153.
Dixon, J.C., Thorn, C.E., Darmody, R.G., and Campbell, S.W.  2002. Post-glacial rock  weathering processes on a roche moutonnée in the Riksgränsen area (68oN), northern Norway.  Norsk Geografisk Tidsskrift, 56, 257-264.
Campbell, S.W., Dixon, J.C., Thorn, C.E., Darmody, R.G. 2002. Chemical denudation rates in Kärkevagge, Swedish Lapland.  Geografiska Annaler, 84A, 179-185, doi: 10.1111/j.0435-3676.2002.00172.x.
Darmody, R.G., Campbell, S.W., Dixon, J.C., and Thorn, C.E.  2002. Enigmatic efflorescence in Kärkevagge, Swedish Lapland: the key to chemical weathering.  Geografiska Annaler, 84A, 187-192, doi: 10.1111/j.0435-3676.2002.00173.x.
Thorn, C.E., Darmody, R.G., Allen, C.E., and Dixon, J.C.  2002. Near surface ground temperature regime variability in selected microenvironments, Kärkevagge, Swedish Lapland.  Geografiska Annaler, 84A, 289-300, doi: 10.1111/j.0435-3676.2002.00183.x.
Thorn, C.E., Darmody, R.G., Dixon, J.C., and  Schlyter, P.  2002. Weathering rates of buried machine-polished rock disks, Kärkevagge, Swedish Lapland.  Earth Surface Processes and Landforms, 27, 831-845, doi: 10.1002/esp.355.
Dixon, J.C., Thorn, C.E., Darmody, R.G., and Campbell, S.W. 2002. Weathering rinds and rock coatings from an Arctic alpine environment, northern Scandinavia.  Bulletin Geological Society of America, 114, 226-238.
Campbell, S.W., Dixon, J.C., Darmody, R.G., and Thorn, C.E. 2001. Spatial variation of early season surface water chemistry in Kärkevagge, Swedish Lapland.  Geografiska Annaler, 83A, 169-178, doi: 10.1111/j.0435-3676.2001.00152.x.
Dixon, J.C., Thorn, C.E., Darmody, R.G., and Schlyter, P. 2001. Weathering rates of fine pebbles at the soil surface in Kärkavagge, Swedish Lapland. Catena, 45, 273-286.
Darmody, R.G., Allen, C.E., Thorn, C.E., and Dixon, J.C. 2001. The poisonous rocks of Kärkavagge.  Geomorphology, 41, 53-62.
Thorn, C.E., Darmody, R.G., Dixon, J.C., and Schlyter, P. 2001. The chemical weathering regime of Kärkevagge, Arctic-alpine Sweden. Geomorphology, 41, 37-52.
Allen, C.E., Darmody, R.G., Thorn, C.E., Dixon, J.C., Schlyter, P.  2001.  Clay mineralogy, chemical weathering and landscape evolution in Arctic-alpine Sweden.  Geoderma, 99, 277-294.
Darmody, R.G., Thorn, C.E., Dixon, J.C., and Schlyter, P. 2000. Soils and landscapes of  Kärkevagge, Swedish Lapland.  Soil Science Society of America Journal, 64, 1455-1466.
Darmody, R,G., Thorn, C.E., Harder, R.L., Schlyter, P., and Dixon, J.C. 2000. Weathering implications of water chemistry in an Arctic environment, northern Sweden.  Geomorphology, 34, 89-100.
Thorn, C.E., Schlyter, P., Darmody, R.G., and Dixon, J.C. 1999. Statistical relationships between daily and monthly air and shallow ground temperature in Kärkevagge, Swedish Lapland.  Permafrost and Periglacial Processes, 10, 317-330.
Dixon, J.C. 1998. Need for an international consensus on calcareous paleosol classification.  Quaternary International, 51/52, 11-12.
Mitra, B., Scott, H.D., Dixon, J.C., and McKimmey, M. 1998. Fuzzy logic applications to soil erosion.  Geoderma, 86, 183-209.
Dixon, J.C., Darmody, R.G., Thorn, C.E., and Schlyter, P. 1995. Preliminary investigation of  geochemical process responses to potential environmental change in the mountains of northern Scandinavia.  Geografiska Annaler , 77A, 259-267.
Pope, G.A., Dorn, R.I., and Dixon, J.C. 1995. A new conceptual model for the understanding of geographical variations in weathering.  Annals of the Association of American Geographers, 85, 38-64.
Wasklewicz, T., Dorn, R., Clark, S., Hetrick, J., Pope, G., Liu, T.,  Krinsley, D., Dixon, J.C., Moore, R., and Clark, J. 1993. Olivine does not necessarily weather first.  Singapore Journal of Tropical Geography, 14, 72-80.
Dixon, J.C. and Thorn, C.E. 1993. Preliminary investigation of chemical weathering of coarse debris from two alpine environments.  Extended Abstracts, International Geographical Union’s Commission on Frost Environments. Pennsylvania State University, Miscellaneous Publication #125. pp14-19.
Dixon, J.C. 1991. Alpine and subalpine soil properties as  paleoenvironmental indicators.  Physical Geography, 12, 370-384.
Kay, M. and Dixon, J.C. 1990. Archeology and geomorphology of the Cherokee Turnpike : Mayes County, Oklahoma. Bulletin of the Oklahoma Anthropological Society, 39, 57-101.
Odell, G.H., Dixon, J.C., Dickerson, K.E., Shingler, K.L., and Vereecken-Odell, F. 1990. An archeological investigation of the Arkansas River bluffline between Jenks and Bixby, eastern Oklahoma.  Contributions in Archeology, 17, 1-98.
Thorn, C.E., Dixon, J.C., Darmody, R.G., and Rissing, J.M. 1989. Chemical weathering trends in fine debris beneath a snowpatch, Niwot Ridge, Front Range, Colorado. U.S.A.  Physical Geography, 10, 307-321.
Dixon, J.C. 1988. Preliminary fluvial geomorphic investigation, western Wagoner County, Oklahoma. In: Odell, G., Arias, P., Hagen, D., and Gaston, D. (eds.) An archeological survey of western Wagoner County, Oklahoma. Contributions in Archeology, 16, 160-186.
Nicholas, R.N. and Dixon, J.C. 1986. Sandstone scarp form and retreat in The Land of Standing Rocks, Canyonlands National Park, Utah.  Zeitschrift fur Geomorphologie, 30, 167-187.
Dixon, J.C. 1986. Soil geomorphology as an integrative approach in physical geography: A review of four books.  Physical Geography, 7, 334-343.
Brussock, P.P., Brown, A.V., and Dixon, J.C. 1985. Channel form and stream ecosystem models. Water Resources Bulletin, 21, 859-866.
Dixon, J.C., Thorn, C.E., and Darmody, R.G. 1984. Chemical weathering processes on the Vantage Peak nunatak, Juneau Icefield, southern Alaska.  Physical Geography, 5, 111-131.
Young, R.W. and Dixon, J.C. 1983. Weathering and hydrothermal alteration: Critique of Ollier’s argument.  Catena, 10, 439-440.
Dixon, J.C. and Young, R.W. 1981. Character and origin of deep arenaceous weathering mantles on the Bega batholith, southeastern Australia.  Catena, 8, 97-109.
Hutton, J.T. and Dixon, J.C. 1981.  The chemistry and mineralogy of some South Australian calcretes and associated soft carbonates and their dolomitization.  Journal of the Geological Society of Australia, 28, 71-79.

BOOKS
Dixon, J.C., Veltre, D.W., and Savelle. J.M.  (eds.) 2004. Arctic Anthropology: Issue in Honor of Allen P. McCartney. University of Wisconsin Press. Madison. 250pp
Dixon, J.C. and Abrahams, A.D. (eds.) 1992. Periglacial geomorphology.  John Wiley and Sons. Chichester. 394p.

BOOK CHAPTERS
Dixon, J.C. and Thorn, C.E. 2005. Chemical weathering and landscape development in mid-latitude alpine environments.  In: Turkington, A.V., Phillips, J.D., and Campbell, S.W. (eds.). Weathering and Landscape Evolution.  Elsevier. Amsterdam. pp 127-145
Dixon, J.C. 2005.  Frost and frost phenomena. In: Nuttall, M. (ed.) Encyclopedia of the Arctic. Routledge. London. pp 686-687.
Dixon, J.C. 2005. Gelifluction processes. In: Nuttall, M. (ed.) Encyclopedia of the Arctic. Routledge. London. pp 706-708.
Dixon, J.C. 2004. Weathering. In: Goudie, A. (ed.) Encyclopedia of Geomorphology. Routledge, London. pp. 1108-1112.
Dixon, J.C. 2003.  Environment and environmental  change in the western Arctic and subarctic: Implications for whaling. In:  McCartney, A.P. (ed.). Indigenous ways to the present: native whaling in the western Arctic.  Canadian Circumpolar Institute. Edmonton. pp1-22
Dixon, J.C. 2002. Floodplain geomorphology. In: G.Odell (ed.). LaHarp’s Post: A tale of French-Wichita contact on the eastern Plains. University of Alabama Press. Tuscaloosa. pp 143-153.
Dixon, J.C. 2002. Weathering and soils. In: Orme, A. (ed.). The Physical Geography of North America. Oxford University Press. Oxford. pp178-198.
Dixon, J.C. 1997. Lakes. McGraw Hill encyclopedia of science and technology. 8th edition. McGraw Hill. New York. pp613-618.
Dixon, J.C. 1994.  Duricrusts. In: Abrahams, A.D. and Parson, A. (eds.). Geomorphology of Desert Environments  Chapman-Hall. London.  pp 82-105.
Dixon, J.C. 1994. Desert soils, patterned ground and pavements. In: Abrahams, A.D. and Parson, A. (eds.).  Geomorphology of Desert Environments. Chapman-Hall. London. pp 61-78.
Dixon, J.C. 1986. Solute movement on hillslopes in the alpine environment of the Colorado Front Range. In: Abrahams, A.D. (ed.). Hillslope Processes. George Allen and Unwin. London.  pp139-159.
Grants
NASA
 
National Geographic Society (NGS)
 
National Science Foundation (NSF)
 
Royal Swedish Academy of Sciences
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