Revealing of gold mineralization by sequential stages of exploration in Derbikwan Area Red Sea Hills, NE Sudan

Abstract EN

Sequential exploration stages were carried out in Derbikwan, including sampling of stream sediments, soil sampling, trenches and boreholes drilling.

These stages revealed that gold was mainly associated with pyrite disseminated carbonate schists and in pyrite disseminated in quartz filling tension gashes related to D3 deformation.

Similar occurrences of Derbikwan were found along Nakasib Suture Zone.

These collectively, represent province referred to, in this study, as Derbikwan Type of Mineralization.

The main features of this province were as following: Location on top of subduction zone, existence of post subduction calcalkaline intrusions, gold mineralization is found to occur in sinsrtal shear zone and minor dextral shear related to D3 deformation and existence of alteration.

These features can be considered prospecting criteria for gold in similar geotectonic-geochemical environment.