The Neogene stratigraphy of the glaciated European margin from Lofoten to Porcupine

This section presents a summary of the megasequences that comprise the lower Pliocene to Holocene succession on the Atlantic margin of NW Europe. These stratigraphic units consist of the Naust Formation (Fig. 21), FSN-1 Megasequence (Fig. 22) and RPa Megasequence (Fig. 23). The definition of the stratigraphic terms together with a listing of the key boreholes and well sections used in this study is presented below. All depths are below sea bed. Other sample sites that have previously been used for descriptive purposes to this part of the stratigraphic section are also indicated below should the reader require further specific lithostratigraphic information. 

Naust Formation

Name: Defined by Dalland et al. (1988), the name represents the Norwegian word for a boathouse.

Key borehole/well sections:

ODP 642: 0–65.7m
6607/5-1: 0–1654m
6610/7-2: 0–767m

NB: well 6507/12-1 was previously quoted by Dalland et al. (1988) as the well type section.

FSN-1 Megasequence

Name: Named by GEUS and BGS. The upper-case notation (FSN) stands for Faroe–Shetland Neogene; the number (1) represents the specific megasequence.

Key borehole/well sections:

214/4-1: 0–300m
BGS 99/3: 0–56m
BGS 77/9: 0–61.5m

NB: well 208/15-1A and BGS boreholes 77/7, 82/10, 84/4 and 85/1 were utilised by Stoker (1999) to describe this section, which was previously assigned to the Middle and Upper Nordland units on the West Shetland margin.

RPa Megasequence

Name: Named by BGS, UCD and Royal NIOZ. The upper-case notation (RP) stands for Rockall–Porcupine; the lower-case letter (a) represents the specific megasequence.

Key borehole/well sections:

ODP 981: 0–271m 
BGS 88/7,7A: 0–89.25m

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References

Dalland, A., Worsley, D. & Ofstad, K. 1988. A lithostratigraphic scheme for the Mesozoic and Cenozoic succession offshore mid- and northern Norway. NPD-Bulletin No. 4 (Stavanger, Norway).

Stoker, M.S. 1999. Stratigraphic nomenclature of the UK North West Margin. 3. Mid- to late Cenozoic stratigraphy. British Geological Survey, Edinburgh.

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