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Published in Soil Sci Soc Am J 35:483-487 (1971)
© 1971 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Loess Distribution in Central and Eastern Kentucky1

R. I. Barnhisel, H. H. Bailey and Sahat Matondang2

ABSTRACT

The loess distribution along a transect from Louisville to eastern Pike County, Kentucky was studied. The parameters used to determine the extent and depth of loess were particle size analyses, titanium content of—and relative amounts of feldspar in—the coarse, medium, and fine silt fractions. The best criterion was the expression of data on the percent silt on a clay-free basis. It was determined that the loess mantle extends about 148 km (92 miles) eastward from the Ohio River. Beyond this distance the loess was either too thin to be recognized due to mixing with residuum or loess was not present. The entire soil profile was developed in loess up to 68 km (42 miles) from the source and from 84–148 km (52–92 miles) along the transect, the upper part of the solum was in loess, the lower part was developed in residual material. It appeared that loess of two ages associated with the glaciation periods, was present in the initial part of the transect, up to 84 km (52 miles) from the Ohio River.

NOTES

1 Contribution from the Department of Agronomy, University of Kentucky, Lexington. The research reported in this paper (no. 70-3-60) is in connection with a project of the Kentucky Agr. Exp. Sta. and published with the approval of the Director. Received May 15, 1970. Approved Mar. 2, 1971. Presented in part before Div. S-2, Soil Science Society of America, at New Orleans, La., Nov. 14, 1968.

2 Associate Professors, and former Graduate Assistant, respectively.






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Copyright © 1971 by the Soil Science Society of America.