“…The archaeological record is particularly rich, and has been analysed by excavation and field survey (Burgess, 1984;Gates and O'Brien, 1988;Harding, 1981;Hope-Taylor, 1977;Miket, 1976Miket, , 1981. The vegetation history of the basin and the surrounding hills has been reconstructed in varying detail (Borek, 1975;Clapperton et al, 1971;Davies and Turner, 1979;Turner, 1968;Tipping, 1992). However, despite the basin having substantial accumulations of fluvial sediments (Payton, 1980) there has been no published attempt to analyse the chronology of alluviation in the Late Quaternary.…”