Eina Member
(Einaleddet)
(Opalinski & Harland 1981).
Main Lithologies. Calcisiltite, peloidal, dolomitic and micritic limestone.
Basal Stratotype. Mjøsa (Toten): disused quarry at Eina (Opalinski & Harland 1981, Fig. 7) (NN 876 238).
Definition. The Eina Member is restricted to the Toten district and comprises grey calcisiltites overlain by a sequence of peloidal, dolomitic and micritic limestones. The base is a fairly abrupt change from the dark bioclastic limestones of the underlying Furnesfjorden Member and the thickness of 38.4m of the Eina Member in its type locality is broadly maintained over the district.
Fauna and Flora. The Eina Member contains diverse but at many levels fragmentary shelly fossils along with algae and stromataporoids. Local 'reefs' were described by Opalinski& Harland (1981 pp.67-69).
(From Owen et al., 1990: The Ordovician Successions of the Oslo Region, Norway. NGU Special Publication 4. Figs. refer to the printed version.