(1980) New Evidence of Early Ordovician Tectonism in the Upper Mississippi Valley, January 1980. University of Iowa
|
PDF
Tis-09.pdf File Size:3MB |
Abstract
The Quaternary or unconsolidated materials constitute a very important resource to the state of Iowa. These glacial, wind-blown, and stream-laid sediments covers approximately 97% inches to over 600 feet. These are the parent materials for the rich agricultural soils which are the backbone of Iowa's economy. They also constitute an economic resource for the aggregate, brick and tile, and construction material industries. With the widespread nature and great thickness of the Quaternary deposits they also are a major factor in most engineering works.
| Item Type: | Departmental Report |
|---|---|
| Keywords: | Investigative Reports, aeromagnetic maps, subsurface rock, gravity data, groundwater |
| Subjects: | Natural resources and environment Natural resources and environment > Earth sciences Natural resources and environment > Maps and gazetteers |
| ID Code: | 26459 |
| Deposited By: | Margaret Barr |
| Deposited On: | 29 Jan 2018 20:37 |
| Last Modified: | 29 Jan 2018 20:37 |
| URI: | https://publications.iowa.gov/id/eprint/26459 |