Abstract
Abstract The landward changes in grain size and thickness of the 26 December 2004 Indian Ocean tsunami deposit on Phra Thong Island and in the Khao Lak Area, south-western Thailand, are summarized in this chapter. The maximum heights of the tsunami on Phra Thong Island and Khao Lak were 7 and 10 m, respectively. The tsunami produced 1- to 4-m-high erosional scarps at the shoreline in these areas. The tsunami deposit is a sheet of sand ranging from a few centimetres to 22-cm thick over a distance of 1500 m inland. It thins near its distal margin, but the thickness is strongly affected by local topography and lacks a consistent trend. The deposit is composed of medium to very fine sand, and fines inland, reflecting loss of energy. It is graded or massive. Sets of graded units result from multiple waves.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call