caa a22 4500 60614983X CHVBK 20210128100536.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s00531-015-1180-4 doi (NATIONALLICENCE)springer-10.1007/s00531-015-1180-4 Structural model of the Balkassar area, Potwar Plateau, Pakistan [Elektronische Daten] [Shahid Iqbal, Gulraiz Akhter, Sehrish Bibi] Balkassar is an important hydrocarbon producing area of the Potwar Plateau, Pakistan. Two-dimensional seismic reflection data of the area revealed tectonically controlled, distinct episodes of (1) normal faulting in the basement followed by (2) reverse faulting in the cover sequence. Himalayan orogeny and associated diapirism of the Precambrian Salt Range Formation have produced many salt-cored anticlines in the Potwar Plateau, and one such salt-cored anticline is present in the Balkassar. This anticline has NE-SW-oriented axis, and both the SE and NW limbs are bounded by reverse faults. The basement normal faults indicate Jurassic rifting and splitting of Pangaea. We interpret reverse faults with dip angles of about 60°-75° in the cover sequence, having both hinterland and foreland vergence. Both NW- and SE-dipping faults are present in contrast to the only southward-directed thrusts of previous models. Duplexes and triangle zones, which are common in the northern part of the Potwar Plateau, are not developed in the Balkassar area due to comparatively less crustal shortening in the area. The present interpretation can help in understanding the complex structures in other parts of the Potwar Plateau for hydrocarbons exploration and also in deformed foreland basins worldwide that display similar characteristics but are considered to be dominated by low-angle thrust tectonics. Springer-Verlag Berlin Heidelberg, 2015 Balkassar nationallicence Potwar Plateau nationallicence Himalayan orogeny nationallicence Crustal shortening nationallicence Foreland basin nationallicence Iqbal Shahid Department of Earth Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut Akhter Gulraiz Department of Earth Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut Bibi Sehrish Schlumberger, Islamabad, Pakistan aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/8(2015-11-01), 2253-2272 1437-3254 104:8<2253 2015 104 531 https://doi.org/10.1007/s00531-015-1180-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-015-1180-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Iqbal Shahid Department of Earth Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Akhter Gulraiz Department of Earth Sciences, Quaid-i-Azam University, 45320, Islamabad, Pakistan aut NATIONALLICENCE 700 1- Bibi Sehrish Schlumberger, Islamabad, Pakistan aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/8(2015-11-01), 2253-2272 1437-3254 104:8<2253 2015 104 531