Field Observations and Some Properties for the Coastal Sand Dunes of the Nile Delta in the Past Thirty-One Year, Egypt

Abstract

The coastal sand dunes of the Nile Delta change strongly and removed from more than thirty years ago. But in the fact the all geomorphologic units of the coastal areas of the Nile delta changed due to the construction of Aswan High Dam in 1964. This change in geomorphologic units occurred due to the lack of sediments arrived to the Mediterranean Sea. This manuscript showing the types and the occurrence of sand dunes in the past and in the present as well as showing the relationship between the sand dunes and the beaches from sedimentological point of view in each zone in the study area. In general, Mz and sorting of dunes is better than the corresponding beaches.