ABSTRACT
The Ariab gold-bearing sulphide occurences are located within the late Proterozoic Ariab-Arbaat volcanic arc sequences which extend for a distance of about 250 km in NE strike in the Red Sea Hills, Sudan. The characteristic gold-barite-silica paragenesis at Hassai is closely associated with gossan formation which is more correlative to recently published evidences of hydrothermally formed gossans and supergene gold enrichment of submarine environments at back-arc settings than to enrichment processes under subsurface weathering conditions.
