The record of periglacial cryoturbation features in the continental interior is poor, particularly in Ohio. Many such features may be present but are overlooked or misinterpreted because of their small size. In eastern Ohio, small, 15-cm involutions were amplified in a recently made roadcut by the low angle of the cut and accentuated by moisture contrasts between the texturally dissimilar materials of the involutions. The involutions occurred above deeply weathered Illinoian outwash gravels at the contact between pebbly silty materials of Wisconsin age and Wisconsin loess. The small size of the features, the result of a periglacial climate of short duration, was revealed by careful leveling.

First Page Preview

First page PDF preview
You do not currently have access to this article.