The eastern part of what has become known as the Arabian-Nubian Shield (e.g., Johnson and Woldehaimanot, 2003), particularly Saudi Arabia, has been extensively explored since the 1970s, with numerous discoveries of deposits of a variety of commodities including gold, silver, copper, molybdenum, zinc, tin, tungsten, tantalum, and uranium. By contrast, the western Arabian-Nubian Shield, here defined as that segment west and south of the Red Sea (Figure 1), has received less exploration attention due to a combination of factors, including that, until recently, exploration and mining legislation required further clarity. From a geologic standpoint, the western Nubian...
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