Gålås Member
(Gålåsleddet)
(Opalinski & Harland 1981).
Main Lithologies. Micritic and peloidal limestones.
Basal Stratotype. Mjøsa (Nes-Hamar): Snippsand (Opalinski & Harland 1981, Fig. 8) (PN 074 430).
Definition. This member is only developed in northern Nes-Hamar where it is approximately 36.5m thick at Snippsand and Furuberget. It overlies the Furnesfjorden Member and is dominated by pale grey micrites and peloidal limestones. Selective dolomitization of burrow systems give weathered surfaces a reticulate appearance.
Fauna and Flora. The Gålås Member is poorly fossiliferous although widely spaced stromatoporoids occur at levels throughout the member and Solenopora and shelly fossils are known from some horizons.
(From Owen et al., 1990: The Ordovician Successions of the Oslo Region, Norway. NGU Special Publication 4. Figs. refer to the printed version.