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Abstract The present work aims to study and assess the grain size distribution and mineralogical concentration, composition and distribution of the black sand sediments onshore (beach zone) and on the prodelta zone along Rosetta coastline area, Mediterranean Sea coast. In addition, the study objective is to reveal the relevant processes those control mineral-sorting, sediments transport, and depositional mechanisms. Furthermore, the study works towards defining the erosion and accretion patterns by estimating the shoreline change rates alongshore of the study area. To achieve these aims,field studies were conducted and 68 samples of beach & prodelta sediments were collected along profile lines perpendicular and parallel to the shoreline.Textural analysis was subjected to all the collected samples in the beach and prodelta area for detailed descriptions of the size distribution of the area sediments and applying their relevant environmental implications.Mostly fine sand sediments control the grain size distribution of the beach study sediment as a predominant constituent mixed with varying subordinate populations of mainly medium and very fine sand classes. The grain size distribution of the prodelta samples shows varying texture between sand and mud content where sand content decrease northerly with increasing depth.Heavy mineral separation approach was used to weigh the percentages of both the light and heavy minerals (LM and HM) that assist to trace heavy mineral sources, transport pathways, concentrations distribution,and the relevant processes roleplay the spatial dispersal of heavy minerals.The conducted mineralogical analyses of light and heavy mineral concentrations presented both intersample and intrasample variability and longshore and crossshore variations mainly controlled by the coastline geomorphology as the first order factor, grain size, hydrodynamic forces, and the human contributions. |