Metallogenesis of the pan-African sedex massive sulfide deposits of Abu Samar, southern red sea hills, Sudan

Abstract EN

-The Abu Samar massive sulfide and Ba-Mn deposits and the adjacent occurrences are hosted the Tolik gneissic and migmatized series.

They were repeatedly metamorphosed and deformed due to subsequent episodes of metamorphism and contemporaneous deformations.

These events left an ore that is highly rich in extraordinary mineralogical assemblages most of which are actually out of equilibrium.

A model was envisaged for these ores that they were first deposited as accumulations of Ba-Mn-Zn with primordial sulfide fractions in the form of chemical sediments, metalliferous mud and exhalites via sea-floor exhalative (SEDEX) processes, deposited proximal to their sources with syn-sedimentary tectonic rifting.

This model is comparable to those generating polymetallic massive sulfide deposits at modern sea floors.