"Briton's Lane Sand And Gravel Member"@en . "0.0118"^^ . "The maximum observed is 40m."@en . . . . "Gravel and sand. Stratified superficial deposits. Occurs onshore. Formed during the Pleistocene Epoch (Quaternary Period) (2.58-.0118 Ma BP)."@en . "2.58"^^ . . . "stable"@en . . "Briton's Lane Sand And Gravel Member"@en . . "Briton's Lane Sands and Gravels [Obsolete: use BRLSG]"@en . . "The Brition's Lane Sand and Gravel Member is commonly exposed at the surface although in places it has a thick palaeosol developed within the upper 2-3m."@en . "The lower boundary is generally well defined with sands and gravels resting upon an erosion surface that cuts down into and draped over tills of the Sheringham Cliffs Formation."@en . "The Briton's Land Sand and Gravel Member consists of horizontal, massive and low angle planar cross-bedded gravels and cobble gravels with thin seams of horizontal and rippled sand. The lithology has a distinctive high flint content (c.85-89%) of which the majority is of non-chatter marked variety (c.78-85%). The gravels also contain a wide range of far-travelled crystalline erratics including rocks of British and Scandinavian provenance."@en . . "BRLSG"@en .