TY - JOUR T1 - A gravel beach-rip channel system: the Westleton Beds (Pleistocene) of Suffolk, England JF - Proceedings of the Geologists' Association Y1 - 1996 A1 - Mathers, S.J. A1 - Zalasiewicz, J.A. AB - The Westleton Beds of northeast Suffolk, England, represent a Pleistocene gravelly shoreline within which three facies are distinguished. A large-scale, cross-stratified, gravel-dominated facies (A) dips predominantly offshore and is interpreted as a beach-face deposit. This facies passes seawards into a 'transitional' zone characterized by a horizontally stratified sand facies (B). This is incised into, and replaced seawards, by a third facies (C) deposited in channel-forms. Nearshore these channels are gravel-filled; further offshore they are regularly spaced, up to 2 m deep, their bases commonly being rimmed by gravel which fines upwards into sand. Several such fining-upward pulses are present in the infill of some of the larger channel-forms. It is suggested that these channels were cut and infilled by sporadic high-energy seaward-directed rip-currents. VL - 107 ER - TY - JOUR T1 - The lithostratigraphy of the Coralline Crag (Pliocene) of Suffolk JF - Proceedings of the Geologists' Association Y1 - 1993 A1 - Balson, Peter S. A1 - Mathers, S.J. A1 - Zalasiewicz AB - A series of 7 boreholes (3 rotary and 4 shell and auger) were drilled by the British Geological Survey through the main outcrop of the Pliocene Coralline Crag Formation between Gedgrave and Aldeburgh in Suffolk between 1982 and 1985. The boreholes proved three members distinguished on the basis of grain size, sorting, carbonate content and fauna. The oldest, the Ramsholt Member, rests unconformably on the Palaeocene-Eocene London Clay Formation. It comprises a basal phosphorite-rich gravel with shelly mud-rich sands above. The Sudbourne Member unconformably overlies the Ramsholt Member and consists of cross-stratified, well-sorted carbonate sands, laid down as a tidal sand ridge. A third member, the Aldeburgh Member is found only in the northern part of the outcrop where it overlies the Ramshot Member. It consists of mud-poor, moderately sorted carbonate sand, and is probably the offshore (deeper water) equivalent of the Sudbourne Member. VL - 104 ER -