LocNo: 3306black chert in Alapah Lst.
| Country: |
USA
|
| Province: |
Alaska, Brooks Range
|
| Locality: |
Nuka River, N bank of, 12787
|
| Layer: | black chert in Alapah Lst. |
| Lower Boundary: |
UAK Alapah Lst. base, 333.5 million years
|
| Upper Boundary: |
UAK Alapah Lst. top, 326.4 million years
|
| Georeference: |