The BGS Lexicon of Named Rock Units — Result Details

Coal Pit Formation

Computer Code: COP Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Marine Isotope Stage 6 (QMIS006) — Marine Isotope Stage 3 (QMIS003)
Lithological Description: Sandy silty clay and interlaminated clay and fine-grained silty sand; clay generally stiff and overconsolidated with some pebbles. Shell fragments and complete valves abundant in places.
Definition of Lower Boundary: Basal erosion surface dissects Fisher, Ling Bank and Aberdeen Ground Formations.
Definition of Upper Boundary: Eroded at top by pre-Forth Formation erosive phases.
Thickness: 76 metres in erosive feature; lateral variations between 0-180 metres.
Geographical Limits: Not defined.
Parent Unit: Reaper Glacigenic Group (REAP)
Previous Name(s): Lower Upper Channel Deposits (-808)
Upper Channel Deposits (-5062)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Stoker, M S, Balson, P S, Long, D, and Tappin, D R. 2011. An overview of the lithostratigraphical framework for the Quaternary deposits on the United Kingdom continental shelf. British Geological Survey Research Report, RR/11/03. 48pp. 
Stoker, M S, Long, D, and Fyfe, J A. 1985. A revised Quaternary stratigraphy for the central North Sea. Report of the British Geological Survey, Vol. 17, No. 2. 
Cameron, T D J, and Holmes, R. 1999. The Continental Shelf. 125-139 in A revised correlation of Quaternary deposits in the British Isles. Bowen, D Q (editor). Special Report of the Geological Society of London, No. 23. 
Holmes, R. 1977. Quaternary deposits of the central North Sea 5. The Quaternary geology of the UK sector of the North Sea between 56° and 58° N. Report of the Institute of Geological Sciences, No. 77/14. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
none recorded or not applicable