92 19 LAYBROOK BRICK WORKS Upper Barremian - Wealden CLAY IBSTOCK BRICK PITS TQ 11.6 18.9 Sheet 152. on Brighton Sheet 198 weald clay parallel bedded + laminated w biotur- bation on some surfaces ANOXIC CLAY dark grey but this is RARE mostly mottled and shows some SIGNS of at least some disturbations worm tubes on horizontal SURFACES below ironstone [~~~] - 1cm.