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Document Type

Research

Abstract

Kansan till outcrops over approximately 25 percent of the surface area in southern Iowa. Most natural outcrops occur along the flanks of loess-capped hills. The texture of the till may be roughly divided into thirds each of clay, silt, and sand and gravel. Quartz and feldspar are the dominant minerals along with montmorillonite and illite-group clay minerals. The majority of the calcareous till classifies as an A-6 engineering material.

Publication Date

1959

Journal Title

Proceedings of the Iowa Academy of Science

Volume

66

Issue

1

First Page

283

Last Page

301

Copyright

© Copyright 1959 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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