Langesundstangen Member
(Langesundstangleddet)
(Harland 1980)
Main Lithologies. Limestone and mudstone.
Unit Stratotype. Skien Langesund: Steinvika (Harland 1980, Fig. 7) (NL 429 397).
Definition. This limestone-mudstone member is developed in the southern and central parts of Skien-Langesund. Its diachronous base overlies the Bunes Member over most of its outcrop and the Åsstranda Member in its most northerly exposures. The top of the member interfingers irregularly with the Skavråker Member (see Fig. 18). The Langesundstangen Member is 14.1 m thick at Steinvika and tapers out northwards.
Fauna. Harland (1980 p.275) recorded fossils and bioclasts to be abundant at several horizons. Recognisable fossil material includes brachiopods, trilobites and bryozoans.
(From Owen et al., 1990: The Ordovician Successions of the Oslo Region, Norway. NGU Special Publication 4. Figs. refer to the printed version.