Graubank Member
Geology
Group: Buntsandstein
Formation: Calvoerde
Lithologies: claystone (6), mudstone (2), siltstone (12), sandstone (1)
Paleoenvironments: marine indet. (15)
Age range: Buntsandstein or 259.51000 to 251.90200 Ma
Graubank Member
Group: Buntsandstein
Formation: Calvoerde
Lithologies: claystone (6), mudstone (2), siltstone (12), sandstone (1)
Paleoenvironments: marine indet. (15)