Abstract:
The study area forms eastern part of the Potwar Fold and Thrust Belt located to
the south east of Soan Syncline. The exposed stratigraphy of the study area comprising of
Chinji Formation, Nagri Formation, Dhok Pathan Formation and Soan Formation,
overlain by Quaternary alluvium. Chinji Formation mostly occupies the core of
anticlines, whereas the rest of the formations occupy the flanks of the anticlines. The
stratigraphy below Chinji Formation is based on the well data drilled in the study area
and its surrounding which includes Kamlial Formation, Murree Formation of Miocene
age and Chorgali Formation/Sakasser Formation of Eocene age respectively.
The structural geometry of the study area is dominated by folds namely Soan
Syncline in the northwest, Pindori Anticline in the central part and Dhanda Syncline
towards the southeast of the study area. Generally, the synclines are broad and open as
compared to anticlines which are relatively tight. All the fold structures trend in the
northeast-southwest.
The sequential evolution of structures is believed to be initiated as result of thrust
fault emanating from the basal decollment with associated development of hanging wall
anticlines which are later on disrupted by back thrust splaying from the fore thrust. The
basal decollment is interpreted to be located near the interface of sedimentary rocks with
crystalline basement.
