The Irumide Belt is a Mesoproterozoic terrane of deformed basement and folded supracrustals, which occurs along the southern margin of an Archaean/Palaeoproterozoic unit called the Bangweulu Block in Zambia.
Together with the Damara Belt, it separates the Congo and Kalahari cratons.
The Irumide Belt comprises deformed crystalline basement units dated at 2.7 Ga and between 2.05 and 1.93 Ga, unconformably and in places structurally overlain by a supracrustal sequence of shallow water quartzites and pelites, the Muva Supergroup, in which sparse volcanic tuffs have given ages of between 1.88 and 1.85 Ga.
1.66-1.55 Ga and an extensive suite of syn-orogenic plutonic rocks at between 1.05 and 1.00 Ga.[1]
This article about a specific stratigraphic formation in Africa is a stub.