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Loess Distribution in Central and Eastern Kentucky
Author(s) -
Barnhisel R. I.,
Bailey H. H.,
Matondang Sahat
Publication year - 1971
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1971.03615995003500030042x
Subject(s) - loess , transect , silt , geology , geomorphology , feldspar , glacial period , hydrology (agriculture) , geochemistry , physical geography , paleontology , oceanography , geotechnical engineering , geography , quartz
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.