The 120-km-long Kalabagh fault zone is formed by transpressive right-lateral strike-slip along the western Salt Range-Potwar Plateau in northern Pakistan. kalabagh fault between mianwali and kalabagh. it truncates at the western margin of salt range thrust
Jhelum fault and kalabagh fault are the geological boundaries of salt rang
we see continuity of salt range along the kalabagh fault and this is known as trans Indus range. while the area lying to the east of the kalabagh fault is the Cis salt Indus range
Kalabagh fault is an active dextral wrench fault with a 16-19 km of strike-slip movement. This fault has been dated as 2.1-1.0 Ma (McDougaII and Khan 1990). Near Jaba Nala, the Kalabagh fault splays out and forms two subparallel faults, Ainwan and Dinghot faults (Fig 2). These faults form a lateral ramp extending to the base of Salt Range Potwar Plateau allochthon.
kalabagh fault form the east lateral thurst ramp of potwar plateau connecting the frontal thrust along with the salt range in the southeast and the surghar range in the northeast.
Lateral ramping from a decollement thrust along an Eocambrian evaporite layer produced NNW- to NW-trending folds and NE- to N-dipping thrust faults in a topographically emergent zone up to 10 km wide.
Piercing points along the main Kalabagh fault indicate 12–14 km of middle to late Quaternary right-lateral offset
Total displacement is reduced northward in the Kalabagh fault zone where north-dipping thrust faults splay to the west. Cumulative right-slip offset in the Kalabagh fault zone is comparable to displacement along the Salt Range frontal thrust, at a minimum average displacement rate of 7–10 mm/year near the Indus River since 2 Ma.
The eastern flank of this basement ridge probably ramped allochthonous strata upward from a depth of over 5 km in the Kalabagh fault zone.
Kalabagh faulting displaced and uplifted Holocene terrace deposits and shifted the course of the Indus River eastward.
earthquakes the maximum credible earthquake which can occur in 10,000 years are:
Kalabagh Fault — M 7.0 at 7.5 miles (12 km) distance with a focal depth of 4.6 miles (7.5 km).
A high slip rate and associated seismicity indicate that the Kalabagh fault zone should be considered active and capable of earthquakes.