Situated immediately west of Kidal-Tibeljeljeline (No. 105-00-020) Djounhane is an almost perfectly circular complex 15 km in diameter which is revealed strikingly on satellite photographs (Ba et al., 1985, Fig. 3; Liégeois and Black, 1984). The first phase is a coarse peralkaline to peraluminous granite which forms an outer ring-dyke that has weathered to an annular ridge. This rock consists of perthite, quartz, aegirine-hedenbergite and sodic and calcic-sodic amphiboles which passes into a rock with biotite and calcic amphibole. This is intruded by a heterogeneous hastingsite-biotite granite which in turn is cut by an inner plug of fine-grained biotite-chlorite granite.