The study includes the sedimentary characteristics of sand bed. This bed is exposed
in the lower part of the Naqaza member in Wadi Ghanima (Al-Khums) northwest of Libya. This layer exposed in another location around the Al-Khums region. It outcroups in more than one location on both sides of the Wadi Ghanima stream. Two parts of studies were conducted on the sand layer. This include the field observations, and the laboratory work later on.