Tectonic record and gold mineralization in the central part of the Neoproterozoic Keraf suture, Gabgaba district, NE Sudan

The central Keraf suture recorded complex lithospheric-scale deformation associated with the formation of Neoproterozoic Arabian-Nubian shield and hosts WG03, Central Zone UTM gold deposits, Gabgaba district, NE Sudan. This study aims at (i) unravelling tectonic history by (ii) interpreting spatial genetic relationships between structural setting mineralization. To this end, we coupled field petrographic observations measurements made along a 50 km-long geological cross-section through district macroscopic microscopic description mineralized structures. is dominated progressive deformation, from ductile D1a thrusting to ductile-brittle D1b sinistral shearing in prolonged northwest-orientated convergence regime. A first mineralization event, leading minor endowment, relates magmatic accretion pre-dating suturing. second episode characterized ore veining as response late collisional strike-slip may be classified orogenic gold. Most budget formed stage. In summary, exemplifies that contains significant polyphase These structures record evolution collision, strong control on endowment.