LocNo: 7186Silica Fm.
| Country: |
USA
|
| Province: |
Ohio, Lucas County
|
| Locality: |
Silica, Medusa N.Quarry
|
| Layer: | Silica Fm. |
| Lower Boundary: |
mid.--up.varcus Zone [17,00], 389 million years
|
| Upper Boundary: |
UD1L--UD2A:(frechi Zone base) [06,10], 374.5 million years
|
| Georeference: |