Dewey Formation
Geologic formation in Iowa and Oklahoma, USA
From Wikipedia, the free encyclopedia
The Dewey Formation is a geologic formation in Iowa and Oklahoma. It preserves fossils dating back to the Carboniferous period.
| Dewey Formation | |
|---|---|
| Stratigraphic range: Carboniferous | |
| Type | Formation |
| Lithology | |
| Primary | Limestone |
| Location | |
| Region | Iowa, Oklahoma |
| Country | United States |
| Type section | |
| Named for | Dewey, Washington County, Oklahoma |
| Named by | D. W. Ohern, 1910[1] |
