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JOHN C. DIXON 102-B Ozark Hall 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
Recent M.A. theses supervised:
Drinking water quality variability in Kuwait from 1998-2001.
(Mohammad Alajmi 2005)
A landuse evaluation of physical factors affecting the development potential of the Wilson Springs site of Fayetteville, Arkansas. (Robyn Lane, 2005)
Evaluating the standard GIS wetland prioritization methodology (SGWPM) at finer resolution: An example from Belvoir, Virginia. (Christopher Landgraf, 2004)
The effect of landuse/landcover change on the water quality of the Okavango River, Namibia.
(Fiona Trewby, 2003)
Recent Ph.D. dissertations supervised:
Did extreme climate conditions stimulate the migration of the Germanic tribes?
(David Holt. 2002)
Landscape geochemistry in Karkevagge, Swedish Lapland.
(Sean Campbell, 2002)
Application of neuro-fuzzy techniques to predict ground water vulnerability in northwest Arkansas.
(Barnali Dixon, 2001)
Effects of anthropogenic activities upon land cover changes in Johnson County Arkansas.
(Michael Garner, 2001)
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
Job Duties:
Within the Department of Geosciences Dr. Dixon teaches upper division undergraduate courses in oceanography, natural regions of North America, and geomorphology and graduate courses in Quaternary environments, research methods, and the history of geography. In addition he advises five doctoral students andsix M.A. students.
Academic Interests and Accomplishments:
Dr. Dixon teaches the required graduate courses in the History and Philosophy of Geography and Research Methods and his research interests lie generally within the field of Geomorphology, the study of landforms and landforming processes. 
He is actively working in two subfields of this scientific discipline. The first of these is in the area of periglacial geomorphology, the study of cold, nonglacial environments, where is focus of interest is the role of chemical processes in landscape evolution. Dr. Dixon is currently working on the nature of periglacial processes operating in the Arctic mountains of Swedish Lappland. His second field of interest is in arid and semi-arid geomorphic processes. His research focus in this area is in soils and chemical crusts developed in the deserts of Australia and the southwestern United States.
Dr Dixon also has research interests in the area of geoarcheology where he works on environmental reconstructions of river valley and rockshelter settings and has taught courses in Geomorphology, Oceanography, Physical Geography of North America, and Quaternary Environments.
Personal Information:
Awards
2005 Leading Scientists of the World, International Biographical Centre
1996 Distinguished faculty Award, Arkansas Geographic Alliance
1996 Distinguished Teaching Achievement Award, National Council for Geographic Education
Professional memberships
American Geophysical Union
Geological Society of America
International Permafrost Association
Association of American Geographers
International Association of Geomorphologists
Publications/Presentations:
ARTICLES
Dixon, J.C. Scale in periglacial geomorphology. Geomorphologie: Relief, Processes, Environment. Accepted
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Karkevagge Autumn by Katya Laute
Grants:
NASA
National Geographic Society (NGS)
National Science Foundation (NSF)
Royal Swedish Academy of Sciences