|Thickness and grain-size distribution of Indian Ocean tsunami deposits distributed in the Khao Lak and Phra Thong Island, south-western Thailand|
Fujino, S.; Naruse, H.; Suphawajruksakul, A.; Jarupangsakul, T.; Maruyama, M.; Ichihara, T. (2008). Thickness and grain-size distribution of Indian Ocean tsunami deposits distributed in the Khao Lak and Phra Thong Island, south-western Thailand, in: Shiki, T. et al. (Ed.) Tsunamiites: features and implications. pp. 123-132
In: Shiki, T. et al. (Ed.) (2008). Tsunamiites: features and implications. Elsevier: Amsterdam. ISBN 978-0-444-51552-0. xiii, 411 pp., more
Grain size; Sediment deposition; Tsunamis; ISEW, Thailand [Marine Regions]; Marine
Tsunami deposit, Thickness, Grain size, Multiple-graded layers, Thailand
|Authors|| || Top |
- Fujino, S.
- Naruse, H.
- Suphawajruksakul, A.
- Jarupangsakul, T.
- Maruyama, M.
- Ichihara, T.
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. Themaximum 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 froma 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 ofmediumto very fine sand, and fines inland, reflecting loss of energy. It is graded or massive. Sets of graded units result from multiple waves.