The BGS Lexicon of Named Rock Units — Result Details

Pipe Rock Member

Computer Code: PPR Preferred Map Code: notEntered
Status Code: Full
Age range: Comley Series (EC) — Comley Series (EC)
Lithological Description: Mature bioturbated, predominantly white quartz arenite with Skolithos burrows.
Definition of Lower Boundary: Conformable and gradational boundary with underlying Basal Quartzite Member.
Definition of Upper Boundary: Defined at the distinct boundary with the overlying Fucoid Beds Member of the An t-Sron Formation.
Thickness: 75 m - 100 m thick.
Geographical Limits: The Eriboll Formation (including the Pipe Rock Member) forms a narrow belt, extending along the north-western side of Scotland from the Durness-Eriboll area, through Assynt, Dundonnell, Kinlochewe and Kishorn, to Skye.
Parent Unit: Eriboll Formation (ERSA)
Previous Name(s): Pipe Rock Formation (-467)
Pipe Rock (-1768)
Upper Quartzite Pipe-Rock Or Piped Quartzite (-1769)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Reference Section  East and west shores of Loch Eriboll, Durness area, north coast of Scotland. Grid references refer to section along eastern shore of Loch. Prigmore and Rushton , 1999. 
Reference Section  Skiag Bridge by Loch Assynt displays a good reference section through the Pipe Rock Member, and shows excellent examples of Skolithos 'pipes'. Peach et al., (1907) Johnson and Parsons (2000) 
Reference(s):
Holland, C H (Editor). Lower Palaeozoic Rocks of the World, Vol.2. (John Wiley & Sons.) 
Johnson M R W and Parsons, I. 2000. Macgregor and Phemister's geological excursion guide to the Assynt district of Scotland. (Edinburgh Geological Society.) 
Phemister, J. 1948. British Regional Geology: Scotland: the Northern Highlands (2nd edition) (Edinburgh: HSMO for the Geological Survey and Museum.) 
Wright, D T and Knight, I. 1995. A revised chronostratigraphy for the lower Durness Group. Scottish Journal of Geology, Vol. 31, 11-22. 
Lapworth, C. 1883. The secret of the Highlands. Geological Magazine, Decade 2, Vol. 10, 120-128, 193-199, 337-344. 
Cowie, J W. 1974. The Cambrian of Spitsbergen and Scotland. 123-155 in Cambrian of the British Isles, Norden and Spitsbergen, Holland, C H (editor). Lower Palaeozoic Rocks of the World, Vol. 2. (John Wiley and Sons.) 
Peach, B N, Home, J, Gunn, W, Clough, C T and Hinxman, L W, 1907. The Geological Structure of the northwest Highlands of Scotland. Memoir of the Geological Survey of Great Britain. 
Park, E G, Stewart, A D and Wright, D T. 2002. The Hebredean Terrane. 45-80 in the Geology of Scotland. Trewin, N H (Editor). (The Geological Society, London.) 
Prigmore, J K and Rushton, A W A. 1999. Scotland: Cambrian and Ordovician of the Hebridean Terrane. 295-315 in British Cambrian to Ordovician Stratigraphy. Rushton, A W A, Owen, A W, Owens, R M and Prigmore, J K (editors). Geological Conservation Review Series. (Joint Nature Conservation Committee.) 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S114 S071 S107 S108 S081 S082 S092 S092 S101 S102