Fig. 3.

Side-scan sonar image (top) and seafloor type map (bottom) offshore Khao Lak, down to approx. 35-m water depth. The seafloor type map is based primarily on the classification from side-scan sonar data and is verified by the analyses of surface sediment samples. The insets A and B show details of the borders of the seafloor types and peculiar features of the seafloor, which are discussed in detail in the text.