Tectonic Control on Drainage Network Evolution in the Upper Narmada Valley: Implication to Neotectonics

Figure 7

Residual velocities shown for the 1-block model (black vectors) and 2-block India model (white vectors). Separation of the Indian block (grey line) is along the Narmada-Son Lineament in Central India [51]. The relative pole of rotation for the 2-block India model is shown in the west with a 20 sigma error ellipse. The rotation rate of 0.162 deg/My predicts contraction along the Narmada-Son line from 5 mm/yr in the east to 0 mm/yr near the pole in the west (black triangles). Extensional rates in Arabian Sea are shown by White triangles [51].