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Cretaceous to Miocene age and was relatively well known since
the investigations of ZITTEL (1883) about 100 years ago. South
of the marine Tertiary and Late Cretaceous strata practically
everything above the Precambrian basement was summarized as
"Nubian Sandstone" or "Nubia Formation". The stratigraphic
interpretation of this sequence varied from Cretaceous to an
all-including formation of Early Palozoic to Cretaceous age.
The common agreement was the continental origin of the Nubian
"Sandstone".
Based on the field investigations of KLITZSCH (1978) the former
Nubian has been subdivided into six formations, two of which
are mainly marine to deltaic (KLITZSCH, HARMS, LEJAL-NICOL &
LIST 1979). These formations range in age from Jurassic to
Late Cretaceous (Turonian/Campanian).
In addition, Paleozoic strata have been found in the Gilf
Kebir area and so a new and much more complete picture of the
basin of Southwestern Egypt has evolved.
3. Methods
From the beginning, it was clear that extensive field work
would be needed in combination with the intensive use of
remote sensing methodology in order to produce results within
a reasonable time.
The only remote sensing data available were LANDSAT images and
magnetic tapes - a situation probably true for a great part
of our earth's surface. In addition, some oblique color
photography on 35 and 70 mm film was used as interpretation
help.