Short sediment cores were collected from the deepest parts of lagoons within the three cuspate forelands by pressing plexiglass tubes into the sediment (Fig. The sediment cores were described, and samples were collected for 14 dating and for particle size and chemical analyses.
Particle sizes were analysed by the sieve and pipette method.
3 and 4) using electronic theodolite and echo-sounder.
To allow comparison of altitudes between this and future investigations, a local datum (mean sea-level) was based on tidal observations over eight days.
Landward the profiles crosses a washover ridge (the present beach), a beach ridge plain (the cuspate foreland) and a coastal cliff.