Document Type

Article

Publication Date

1979

Abstract

This paper deals with a study of Test Project color photographs. On geologic struc- tures using enlargements Apollo-Soyuz The two study areas are Abu Rawash and Wadi el Natrûn; both are in the northern part of the Western Desert of Egypt. Because the structures are small, aerial photographs were studied and field checks were made to verify the findings from Apollo-Soyuz photographs. The Apollo-Soyuz photographs of Abu Rawâsh clearly show structural uplifts that brought white chalk dertlpits to the surfacc. The photographs also depict the distribution of dark volcanic rocks in the region and clearly delineate complex struc- tures including several domes and plunging anti- clines. Diffcrences and similarities between these structures are clearly displayed in the Apollo- Soyuz photographs Wadi el Natrûn is an elongate depression that is probably ectonic in origin. The Apollo-Soyuz photographs display its structures as well as the string of salt lakes within it The natural color of these photographs enables distinction between these lakes on the basis of color. Natural color also enables recognition of the barren nature of thc northern and southern extrcmities of the depression The photographs also reveal that there isa potential for iner easing the area of cultivated land on the castern slope of the depression.

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