Mwembeshi Shear Zone

[5] The date of around 550 Ma for the Mwembeshi shear zone is based on U-Pb zircon ages of syntectonic granites from the Hook massif and of associated hypabyssal rhyolite.

[5] The sinistral sense shows that, in modern coordinates, the Congo-Sao Francisco Craton approached the remainder of southwestern Gondwana from the north, although at the time southwestern Gondwana was oriented about 90 degrees clockwise of today's orientation, and the Congo Craton approached from the east.

[7] There was little vertical displacement, but Mwembeshi is a major sinistral transcurrent shear zone.

[2] The shear zone accommodates a change in the structural vergence between the Zambezi Belt and the Lufilian Arc.

[5] Further to the southwest, the shear zone extends along part at least of the Damaran belt.