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Journal of the Geological Society; 2005; v. 162; issue.1; p. 5-8;
DOI: 10.1144/0016-764904-085
© 2005 Geological Society of London

Short Communication

Evolution of Neoproterozoic–Lower Palaeozoic Lufilian arc, Central Africa: a new model based on syntectonic conglomerates

MAREK WENDORFF

University of Botswana, Geology Department, Gaborone, Botswana (e-mail: wendorff@mopipi.ub.bw; mpw@it.bw)

The Lufilian arc, a segment of the Neoproterozoic–Lower Palaeozoic Pan-African orogenic network within southern and central Africa, deforms the sedimentary succession of the Katanga Supergroup and contains large bodies of fragmental rocks previously considered as tectonic friction breccias. These are re-interpreted as syntectonic conglomerate complexes, which reveal the existence of two previously unrecognized basins and shed new light on the Katangan stratigraphy and tectonics. A prominent uplift in the southern part of the Roan rift at c. 760 Ma resulted in conglomerates/olistostromes underlying the succeeding Guba rift sequence. During post-735 Ma orogenesis, north-advancing nappes supplied coarse detritus into the Fungurume foreland.

Key Words: Lufilian arc • Katanga Supergroup • conglomerates • rift zones • forelands




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M. Wendorff
Lithostratigraphy of Neoproterozoic syn-rift sedimentary megabreccia from Mwambashi, Copperbelt of Zambia, and correlation with olistostrome succession from Mufulira
South African Journal of Geology, 2005; 108: 505 - 524.
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