Freda Sandstone
The Freda Sandstone is a geologic formation in Michigan. It dates back to the Proterozoic. Lithologically, the Freda Sandstone is a lithic, red-brown, cyclic sequence of sandstones, mudstones and shales (conglomerates are rare).
| Freda Sandstone | |
|---|---|
| Stratigraphic range: Proterozoic | |
| Type | Formation |
| Underlies | Jacobsville Sandstone |
| Overlies | Nonesuch Shale |
| Lithology | |
| Primary | sandstone |
| Other | mudstone, shale |
| Location | |
| Region | Michigan and Wisconsin |
| Country | United States |
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