Exhumed Paleozoic glacial deposits and landforms of the North Gondwana are reported here for the first time from the South Eastern Desert (SED) of Egypt. Using field observations and remote sensing datasets (Advanced Land Observing Satellite [ALOS], Phased Array L-band Synthetic Aperture Radar [PALSAR] radar, multispectral Landsat TM datasets, and digital elevation models [DEMs]), we mapped the distribution of Paleozoic glacial features (i.e. deposits and landforms) in the SED. Two main glaciogenic facies were identified in three locations in the SED: (1) massive, poorly sorted, matrix supported, boulder-rich diamictites in Wadi El-Naam and Korbiai, and (2) moderately-sorted, occasionally bedded outwash deposits in Betan area. Inspection of radar, DEMs, and Landsat Operational Land Imager (OLI) images revealed previously unrecognized ENE-WSW trending glacial megalineations (MLs) over the peneplained Neoproterozoic basement rocks in the central sections of the SED, whose trends align along their projected extension with those of glacial features (tunnel valleys and striation trends) reported from Saudi Arabia. The glaciogenic features in the SED are believed to be largely eroded during the uplift associated with the Red Sea opening, except for those preserved as basal units beneath the Nubia Sandstone Formation or as remnant isolated deposits within paleo-depressions within the basement complex. The apparent spatial correlation of the SED glacial features with well-defined Late Ordovician deposits in North Africa and in Saudi Arabia, and the reported thermochronometric analyses and fossil records are consistent with a Late Ordovician age for the SED glaciogenic features and support models that call on the continuation of the Late Ordovician (Hirnantian) ice sheet from the Sahara into Arabia through the SED of Egypt.

No abstract

No abstract

No abstract

The land-water boundary known as the shoreline is the area most conducive to development. Due to both natural and human influences, these areas are highly variable. To study the coastline morphology, the coastal region of the northern Suez Canal is chosen. Shoreline retreat is extracted, monitored, measured, and interpreted using GIS and remote sensing techniques. Three zones made up the area under investigation. The shoreline studying and monitoring showed that zone 1, Suffering from erosion rates was found on the coast of El-Tina plain (-17.2 to -11.9 m/year). Converted Eastward to accretion at rates reached +19.7 m/year. While over zone II, the results show that the investigated zone suffer from continuous regression (-0.82 to -5.690 m/year) and in Zone III, the results show that the investigated zone suffered from regression in the western side by rates reached -8.52 m/year and accretion at rates reached to +13.7 m/year. Prediction of shoreline position in years (2030, 2040 and 2050) is implemented based on the rates of changes.