Table 2: Geologic units in the Wadi Hammamat area as shown on the map

in Figure 9 (adapted from Harrell and Brown 1992: Table 4)

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Geologic

Age Name Description

Quaternary Wadi Alluvium Sand with lithologically diverse pebbles and cobbles

of many colors but especially white, pink, brown, dark

gray and green.

Upper Nubia Sandstone. From a distance appears purplish-

Cretaceous Sandstone black due to a coating of ‘desert varnish’.

Late Fawakhir Granite and granodiorite with abundant iron-

Precambrian Granite stained, gold-bearing, hydrothermal quartz

veins. From a distance appears pink to pale red

due to natural coloring.

Hammamat A variety of slightly metamorphosed sedimentary

Siliciclastics rocks, including (meta) greywacke sandstone to

siltstone (the ancient Egyptian bekhen-stone),

conglomerate and shale. From a distance appears

dark brownish-gray due to a coating of ‘desert varnish’.

Dokhen A variety of slightly metamorphosed volcanic

Volcanics rocks, including (meta) rhyolite, andesite and basalt.

From a distance appears pinkish-brown due to

weathering.

Atalla Serpentinite. From a distance appears pinkish-

Serpentinite brown due to weathering.

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