THE INFLUENCE OF SEDIMENT SOURCE, VEGETATION AND MICROTOPOGRAPHY ON TSUNAMI DEPOSIT CHARACTERISTICS

摘要

Spatial distribution and sedimentary features of tsunami deposits are controlled by environmental settings where erosion and deposition occurred by the tsunami. We show variability of the typical trends of thickness and grain size for the different type of beach, and the influence of microtopography on sandy tsunami deposits in coastal wetland at cold districts where uneven surface has been developed by vegetation at the time of the tsunami inundation.