Concerning NPD bulletins
The NPD bulletins summarise the current stratigraphical nomenclature (naming system) on the Norwegian shelf.
Stratigraphy is the geology branch which studies strata, age, composition and distribution of stratified geological sediments.
Investigations conducted by the Norwegian Petroleum Directorate (NPD) have thrown new light on the geology of Svalbard and the northern Barents Sea.
Investigation of Oligocene to Lower Pliocene deposits in the Nordic offshore area and onshore Denmark.
Upper Palaeozoic lithostratigraphy of the southern Norwegian Barents Sea.
Structural elements of the Norwegian continental shelf . Part II: The Norwegian Sea Region.
Structural elements of the Norwegian continental shelf . Part 1: The Barents Sea Region.
Isaksen, D. & Tonstad, K., 1989: A revised Cretaceous and Tertiary lithostratigraphic nomenclature for the Norwegian North Sea. NPD Bulletin No. 5, 59 pp.
A lithostratigraphic scheme for the Mesozoic and Cenozoic succession offshore mid- and northern Norway
A revised triassic and jurassic lithostratigraphic nomenclature for the Norwegian North Sea