Elaiussa Sebaste is located on the coast of Rough Cilicia, in a region dominated by Miocene and Quaternary soils. It lies sandwiched between the Ecemis Fault Zone to the north and the Kozan Fault Zone to the south (Aksu et al. 2005: Fig. 10). Sampling of clay sediments in the Cilicia Basin by the coast of Elaiussa showed a composition of: 15-25% smectite, 55-65% illite, 10% chlorite, and negligible amounts of serpentine (Shaw 1978: Figs. 2-4).