stripes
A 12 km diameter pluton is intrusive into Precambrian granites and andesitic volcanic rocks. On the western side a 10 km long arcuate dyke-like mass may be a ring-dyke. The principal rock type is a coarse-grained quartz syenite with aegirine and amphibole.
CAVANAGH, B.J. 1979. Rb-Sr geochronology of some pre-Nubian igneous complexes of central and northeastern Sudan. Ph.D. Thesis, University of Leeds. 239 pp. (unpublished)HUSSEIN, I.M. 1977. Geology of the Halaib area of the northern Red Sea Hills, Sudan, with special reference to the Sol Hamed basic complex, M.Phil. thesis, Portsmouth Polytechnic. 175 pp. (unpublished).VAIL, J.R. 1976. Location and geochronology of igneous ring-complexes and related rocks in north-east Africa. Geologisches Jahrbuch, B20: 97-114.