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Publication Citation
| USGS Series | Professional Paper |
|---|---|
| Report Number | 1620 |
| Title | Origin, extent, and thickness of Quaternary geologic units in the Willamette Valley, Oregon |
| Edition | - |
| Language | ENGLISH |
| Author(s) | O'Connor, Jim E.; Sarna-Wojcicki, Andrei M.; Wozniak, Karl C.; Polette, Danial J.; Fleck, Robert J. |
| Year | 2001 |
| Originating office | |
| USGS Library Call Number | - |
| Physical description | 52 p.; 1 plate in pocket |
| ISBN |
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Abstract
This report provides stratigraphic framework for the Quaternary deposits of the Willamette Valley, Oregon, that serves as a basis for a 1:250,000-scale map, as well as for thickness estimates of widespread Quaternary geologic units. Eleven separate Quaternary units, differentiated on the basis of stratigraphic, topographic, pedogenic, and hydrogeologic properties, were mapped. These units reflect four distinct episodes in the Quaternary geologic development of the Willamette Valley.
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