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Morphology and Weathering Trends of the Sangamon Soil Complex in South-Central Indiana in Relation to Paleodrainage

Published online by Cambridge University Press:  20 January 2017

Peter M. Jacobs*
Affiliation:
Department of Geography, University of Wisconsin-Whitewater, Whitewater, Wisconsin, 53190

Abstract

Three paleodrainage groups are proposed for profiles of the Farmdale–Sangamon soil complex in south-central Indiana. The groups (good, intermediate, and poor) are differentiated on the basis of matrix colors and color patterns. Genetic support for the groupings is provided by morphological trends still evident following > 100,000 yr of pedogenesis and burial by late Wisconsinan loess. Depth of carbonate leaching, solum thickness, and argillic horizon thickness all decrease with poorer drainage. Clay mineralogy also reflects paleodrainage. Illite degradation is intense in all profiles, but profiles with good drainage have poorly crystalline, interstratified expandable minerals, while well crystalline smectites dominate in profiles with poor drainage. Remanent aggregation in former A horizons is stronger in more poorly drained profiles, while the effects of structural overprinting from the modern soil increase with better modern drainage. Soil morphology, mineralogy, and parent material–paleolandscape position of Sangamon profiles are all internally consistent with color development under soil hydrological conditions during the last interglacial to glacial transition. The occurrence frequency of each drainage group indicates that the Sangamon soilscape was better drained than now, and morphology and clay mineral evidence suggests that areas with poor drainage did not experience the extreme seasonal groundwater shifts that the modern landscape experiences.

Type
Original Articles
Copyright
University of Washington

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References

Borchardt, G. (1989). Smectites. Minerals in Soil Environments Soil Science Society of America, Madison.p. 675–727Google Scholar
Curry, B.B., and Follmer, L.R. (1992). The last interglacial–glacial transition in Illinois: 123–25 ka.Clark, P.U., Lea, P.D. The Last Interglacial–Glacial Transition in North America 7178.CrossRefGoogle Scholar
Curry, B.B., and Pavich, M.J. (1996). Absence of glaciation in Illinois during Marine Isotope Stages 3 through 5. Quaternary Research 46, 1926.Google Scholar
Follmer, L.R. (1998). Klumpen—A mesoscale level of classification for soil structure: Rationale. Quaternary International. CrossRefGoogle Scholar
Follmer, L.R. (1983). Sangamonian and Wisconsinan pedogenesis in the Midwestern United States.Porter, S.C. Late Quaternary Environments of the United States, Vol. I, The Late Pleistocene Univ. Minnesota Press, 138144.Google Scholar
Follmer, L.R. (1982). The geomorphology of the Sangamon surface: Its spatial and temporal attributes.Thorn, C.E. Space and Time in Geomorphology Allen and Unwin, London.117146.Google Scholar
Follmer, L.R. (1978). The Sangamon soil in its type area—A review.Mahaney, W.C. Quaternary Soils GeoAbstracts, Norwich.125165.Google Scholar
Follmer, L.R., McKay, E.D., King, J.E., and King, F.B. (1990). Athens quarry sections: Type locality of the Sangamon Soil. Wisconsinan and Sangamonian Type Sections of Central Illinois p. 27–40Google Scholar
Gray, H. H (1988). Relict Drainageways Associated with the Glacial Boundary in Southern Indiana.Google Scholar
Hall, R.D. (1992). The Sangamonian–Wisconsinan Transition in Southwestern Ohio and Southeastern Indiana.Google Scholar
Jacobs, P.M. (1998). Influence of parent material grain size on genesis of the Sangamon Geosol in south-central Indiana. Quaternary International. CrossRefGoogle Scholar
Jacobs, P. M (1994). Stratigraphy, Landscape Evolution, and a Pleistocene Buried Soil Lithosequence in the Flatwoods Region of Owen and Monroe Counties. Indiana.Google Scholar
King, J.J., and Franzmeier, D.P. (1981). Morphology, hydrology, and management of Clermont soils. Proceedings of the Indiana Academy of Science 90, 416422.Google Scholar
Moore, D.M., Reynolds, R.C. Jr.(1989). X-Ray Diffraction and the Identification and Analysis of Clay Minerals. Oxford Univ. Press, New York.Google Scholar
Ransom, M.D., Smeck, N.E., and Bigham, J.H. (1987). Micromorphology of seasonally wet soils on the Illinoian till plain, U.S.A. Geoderma 40, 8399.CrossRefGoogle Scholar
(1992). Keys to Soil Taxonomy. United States Government Printing Office, Washington.Google Scholar
(1993). Soil Survey Manual (Revised). United States Government Printing Office, Washington.Google Scholar
Tandarich, J.P., Follmer, L.R., and Darmody, R.G. (1994). The pedoweathering profile: A paradigm for whole regolith pedology from the glaciated midcontinental United States of America.Cremeens, D.L., Brown, R.B., Huddleston, J.H. Whole Regolith Pedology 97118.Google Scholar
Thompson, M.L. (1986). Morphology and mineralogy of a pre-Wisconsinan paleosol in Iowa. Soil Science Society of America Journal 50, 981987.Google Scholar
Thompson, M.L., and Soukup, T.A. (1990). Morphological characterization of a suite of buried and exhumed Sangamon paleosols in Pottawattomie County, Iowa.Bettis, E.A. Holocene alluvial stratigraphy and selected aspects of the Quaternary history of western Iowa Midwest Friends of the Pleistocene Conference, 175183.Google Scholar
Thorp, J., Johnson, W.M., and Reed, E.C. (1951). Some post-Pliocene buried soils of the central United States. Journal of Soil Science 2, 119.CrossRefGoogle Scholar
Woida, K., and Thompson, M.L. (1993). Polygenesis of a Pleistocene paleosol in southern Iowa. Geological Society of America Bulletin 105, 14451461.Google Scholar