Alum Shale Formation
Norwegian: Alunskiferformasjonen
Superior unit: Røyken Group
Age: Middle Cambrian - Early Ordovician
Geographic distribution: Oslo
Type locality: ?
Type locality map coordinates (ED50):
Parish (number): 0-Ukjent kommune (0)
Reference: Owen et al., 1990 page: 7
Additional refs. / originally described in:
Full text
Outcrop pictures:
Alum Shale nodule, Nærsnes
Alum Shale Fm., basement and mænaite sill, Slemmestad
Alum Shale Fm., Slemmestad
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© UNM/Geology, UiO, 2004