Figure 19
Conceptual model showing the different tectonic events and formation of respective weathered zone thickness. (a) Development of different planar fabrics over time. The early foliation was developed by the NE-SW compression between 875 and 857 Ma. The compression event is followed by an event of strike-slip shearing between 834 and 778 Ma. The last event, predominantly NE-SW extension, predominate the area between 764 and 650 Ma resulted the normal faults. Age data were compiled from Singh et al.37 and Tiwari and Biswal60. (b) Structurally controlled bedrock weathering in different zones resulted variability in the weathered zone thickness. Zone-II and Zone-IV have a maximum and minimum weathered zone thickness respectively.
