Purgatory Conglomerate
| Purgatory Conglomerate | |
|---|---|
| Stratigraphic range: Carboniferous (Pennsylvanian) | |
| Type | Formation |
| Unit of | Narragansett Bay Group Informal: Rhode Island Group (RI) |
| Lithology | |
| Primary | "near metamorphic" conglomerate |
| Location | |
| Region | New England (Rhode Island) |
| Country | United States |
| Type section | |
| Named for | Purgatory, Middletown, Newport, RI |
Dating to the Carboniferous period, the Purgatory Conglomerate is a geologic formation in Rhode Island.