“…The gneisses are invaded by numerous pegmatitic dykes and veinlets, which in some places contain garnets. The amphibolite bands surrounding the core gneisses are also strongly foliated and display alternating bands of metamorphic biotite-and hornblende-gneisses of amphibolitie facies (Rashwan, 1991;El Ramly et al, 1993;Abd El-Naby and Frisch, 2006). The banded amphibolites are overlain, to the east, by a package of a triangular zone of intensively folded biotite-and hornblend-rich metasediments, and by Hafafit psammitic gneisses to the south (Figs.…”