Abstract

ABSTRACT
The lithological and structural characteristics of Danko northwestern part of Zuru Schist Belt have been investigated and analyzed with the aim of unraveling the structural evolution of this part of the basement complex. The area comprises of muscovite schist, quartzites, quartz schist, late and post tectonic granite (fine to medium grained) including pegmatite and aplite veins and dykes. The basement have been subjected to three phases of tectonic deformation denoted as D1, D2 and D3. The first phase of deformation (D1) was associated with the development of a regional foliation S1 on an S0 bedding plane and a flat lying partially obliterated minor assymetrical fold F1. The second phase of deformation (D2) is the main deformation phase and involved a heterogeneous deformation that gave rise to large scale upright tight to isoclinal folds F2 with a NNE-SSW trend of axial plane orientation and an S2 crenulation foliation. D3 deformation phase is a late stage phase that involves brittle deformation marked by late sub-vertical fractures which gave rise to granitic veins, pegmatite, faults and joints. These extensional fractures show a bimodal orientation mainly in WNW-ESE and NW-SE directions that are nearly perpendicular to the regional metamorphic foliation.

Key words: Keywords: - Pan-African, Eburnean, Deformation, Crenulation foliation, Tectonic.