Mesoproterozoic evolution of the Nampula Block, N. Mozambique.

The Nampula Block is the largest Mesoproterozoic crustal domain in northern Mozambique, covering >100,000 km2 and constituting one of the most important components of the southern part of the Neoproterozoic to Cambrian (“Pan-African”) East African Orogen. The Nampula Block is bounded in the north by the WSW–ENE-trending Lúrio Belt and by younger rocks to the south and east. The oldest rocks of the Nampula Block, the Mocuba Suite, are a polydeformed sequence of upper amphibolite-grade layered grey gneisses and migmatites associated with intrusive trondhjemite-tonalite-granodiorite and granitic orthogneisses