Fig. 4From: Engineering failure analysis and design of support system for ancient Egyptian monuments in Valley of the Kings, Luxor, Egypta Esna Shale and b Marl Limestone (Member 1), Gebel El-Gurnah. The main exposed rocks in Gebel El-Gurnah are the Esna Shale (late Paleocene- Early Eocene) and the conformatably overlying Thebes formation (Early Eocene)Back to article page