
PorterGeo Database
The ArabianNubian Shield also covers parts of Yemen, Egypt, Sudan, Eritrea, Ethiopia and Kenya. It evolved between ~870 and 550 Ma and is one of the largest tracts of juvenile Neoproterozoic crust on Earth. It extends over a northsouth interval of 3500 km and at its widest is >1500 eastwest. It is dominated by intraoceanic arc volcanism ...