| Author: | Pratt, Walden P. |
|---|---|
| Year: | 1995 |
| Document Type: | N/A |
| SUDOC: | I 19.3:1989-G |
| Series: | Strategic and Critical Minerals in the Midcontinent Region, United States |
| Report Number: | USGS Bulletin 1989-G |
| Subjects: | Carbonate rocks -- Middle West. |
| Geology, Stratigraphic -- Paleozoic. | |
| Lead ores -- Middle West. | |
| Zinc ores -- Middle West. | |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc304478/ |