| 
Country:
 | 
Poland 
 | 
| 
Province:
 | 
Lublin Coal Basin 
 | 
| 
Locality:
 | 
Minkowice 1 borehole 
 | 
| 
Layer:
 | 
Go alpha, 1430-1433 m | 
| 
Lower Boundary:
 | 
DER Go alpha 1--Go alpha 2 [11.00], 333 million years
 
 | 
| 
Upper Boundary:
 | 
DER Go alpha 3--Go alpha 4  [13.00], 332 million years
 
 | 
| 
Georeference:
 | 
 |