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Abstract
The bedrock in Iowa is covered nearly everywhere by unconsolidated deposits of glacial drift and alluvium, which range in thickness from less than 1 foot to more than 400 feet, and from less than 1 foot to about 60 feet, respectively. The configuration of the bedrock surface is the result of a complex system of ancient drainage courses which were developed during a long period of preglacial erosion and during shorter, but more intesne periods of interglacial erosion.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Bedrock topography of southeast Iowa |
| Series title | IMAP |
| Series number | 808 |
| DOI | 10.3133/i808 |
| Year Published | 1973 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Iowa City, IA |
| Contributing office(s) | Iowa Water Science Center |
| Description | 2 Plates: 31.96 x 36.58 inches and 28.23 x 41.80 inches |
| Country | United States |
| State | Iowa |
| Scale | 25000 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |