LocNo: 4511R1a, H.magistrorum band
| Country: |
Great Britain
|
| Province: |
England,Lancashire
|
| Locality: |
Blackburn, Samlesbury Bottoms, R. Darven
|
| Layer: | R1a, H.magistrorum band |
| Lower Boundary: |
GBY H2c--R1(prereticul.--Ho.magistrorum), 317 million years
|
| Upper Boundary: |
GBY R1a3--R1a4 (R.subretic.--todmorden.), 316.4 million years
|
| Georeference: |