The BGS Lexicon of Named Rock Units — Result Details

Lower Cretaceous Rocks (Undifferentiated)

Computer Code: LOCR Preferred Map Code: notEntered
Status Code: Pending Upgrade
Age range: Not Entered (?) — Not Entered (?)
Lithological Description: The unit comprises a succession of sedimentary rocks dominated by mudstone or clay and sandstone, with subordinate amounts of calcareous mudstone and argillaceous limestone, and at the top in Yorkshire, Lincolnshire and the southern North Sea, chalk.
Definition of Lower Boundary: none recorded or not applicable
Definition of Upper Boundary: none recorded or not applicable
Thickness: none recorded or not applicable
Geographical Limits: Onshore in the UK3D model, the unit occurs in eastern North Yorkshire, the East Riding of Yorkshire and north Lincolnshire, almost entirely concealed beneath Upper Cretaceous rocks. Offshore in the UK3D model the unit occurs close to the north coast of the Moray Firth, and very locally in the Bristol Channel and Western Approaches.
Parent Unit: Not Entered (?)
Previous Name(s): Lower Cretaceous Rocks [Obsolete Code Due To Duplication: Use LOCR] (LCRE)
Alternative Name(s): none recorded or not applicable
Stratotypes:
none recorded or not applicable
Reference(s):
Tappin, D R, Chadwick, R A, Jackson, A A, Wingfield, R T R and Smith, N J P. 1994. United Kingdom offshore regional report; the geology of Cardigan Bay and Bristol Channel. (London: HMSO for the British Geological Survey.) 
Evans, C D R. 1990. The geology of the western English Channel and its western approaches. British Geological Survey United Kingdom offshore regional report. 
BGS 1:625 000 scale Bedrock Geology UK North and South geological maps (BGS 2007a, b) 
Andrews, I J, Long, D, Richards, P C, Thomson, A R, Brown, S, Chesher, J A, and McCormac, M. 1990. The geology of the Moray Firth. (London: British Geological Survey.) 
Cameron, T D J, Crosby, A, Balson, P S, Jeffery, D H, Lott, G K, Bulat, J, and Harrison, D J. 1992. The geology of the southern North Sea. United Kingdom offshore regional report. (London: HMSO for the British Geological Survey.) 
Kent, P E. 1980. Eastern England from the Tees to The Wash (Second). British Regional Geology. (London: HMSO for British Geological Survey.) 
National Bedrock Fence Diagram of the United Kingdom - UK3D_v2015 doi:10.5285/ 54057516-dec9-48b7-a717-0c341a3846dc 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E089 S013