This paper is a continuation of the work previously reported by Dahl, Handy and Davidson (1), and summarizes currently available information on properties of the Wisconsin loess. New areas of investigation are in northwest and eastern Iowa. Depth measurements and samples in the bluffs region were obtained mostly from the traverses of Hutton (2) and Davidson, et al. (3). Riggs (4) continued these traverses and the northwest-southeast traverses of Lyon, et al. (5), and established a grid-like sample pattern in southwest Iowa. Dahl (6) and Hansen (7) extended the grid eastward to the Mississippi River. Data on northwest Iowa was obtained from the east-west traverses initiated by Davidson (8).
Proceedings of the Iowa Academy of Science
© Copyright 1958 by the Iowa Academy of Science, Inc.
Hansen, J. A. Jr.; Dahl, A. R.; and Davidson, D. T.
"Further Studies of Loess in Iowa: Thickness, Clay Content, and Engineering Classification,"
Proceedings of the Iowa Academy of Science, 65(1), 317-322.
Available at: https://scholarworks.uni.edu/pias/vol65/iss1/46