relative sea level, Nile Delta, eustatic sea level, sediment deprivation, Egypt, human activity, Coastal protection, cores, strata thickness, geotechnical properties, sediment color, subsidence, compaction, Holocene, coastline shifts, Geography, Coastal landforms, Climatology, Landforms, Paleoclimatology, Geomorphology, Sedimentary petrology, Petrology, Sedi...