G. Gietelink. A Prominent Shear Zone Runs E-W across Singhbhum. Structural Analysis Indicates Three Phases of Folding, All With E-W Axial Planes Dipping Northerly or Subvertically to the North of the Shear Zone. South of This Shear Zone There Are Two Phases of Folding . njg 1978, 65-76.