Changes of Sediment Nature by Enviromental Impacts,
Sharm Abu Makhadeg Area, Red Sea, Egypt
Abbas M. Mansour
Geology Dept., Fac. Sciences, South Valley Univ., 83511 Qena, Egypt |
Fourteen recreational projects occupy the Red Sea coast of Sharm (small bay) Abu Makhadeg,
Egypt. Landscape destruction, landfills, shoreline change, dredging rocky tidal
flat and brine water discharge are the main environmental impacts in the area. The
depositional hydrodynamic pattern has been affected as a result of blocking littoral
currents by beach fill and dredging routes. Subsequently, some parts of beach fill have
been subjected to local erosion.
Grain size distribution and chemical characteristics of sediments samples (51 sp.) using
some statistical methods reveal the dominance of muddy sediments in the dredging areas
with abundance of organic matter and trace elements than background areas. These reflect
the negative impact on the biologic life and humans. Only a significant coarser fill
material (fine gravel) may effectively extend beach fill longevity. Locating sufficient
coarser material of alluvial fan near the beach will solve the problem.
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