Subsurface geological model of sedimentary and metasedimentary wedge from Mansehra to Battal based on gravity data, Hazara area, Pakistan

• DOI: 10.1016/j.engeos.2021.06.004
• Publication Date: 2021-06-24T10:57:46Z
• Authors: Rizwan Sarwar Awan; Ashar Khan; Chenglin Liu; Shangfeng Yang; Qibiao Zang; Yuping Wu; Guoxiong Li; Khawaja Hasnain I...; Muhammad Tahir; Sajjad Ali
• Keywords: Thrust fault; Wedge (geometry)

This study is aimed to delineate the subsurface structural elements using geophysical techniques in Haraza area of Pakistan. We investigated Oghi and Battal thrust faults, sedimentary metasedimentary wedge, absolute crustal thickness based on terrestrial gravity data. Unlike seismic survey relying wave propagation, magnetic both attraction repulsion, electrical electromagnetics induction. The attractive field produces relatively simpler patterns anomalies, like a series highs lows over regions with undulating basements buried structures. A qualitative interpretation data reveals good deal information. During collision Indian Eurasian Plates, compressional structures were developed Lesser Himalayas or northwest Hazara Kashmir Syntaxis. mainly focuses western limb regional local Bouguer anomalies incorporated units. model computed through technique along profile A-A' from Mansehra that demarcates blind Thrust emergent Thrust. Tanol Formation Precambrian age near Kotli Pine while demarcated within Granite Cambrian Ordovician Battal. Along Thrust, fault gouge breccias have been observed during studies. total sedimentary/metasedimentary wedge areas was estimated be 13.6 km 14.2 km. In comparison, crust 51.6 52.2 km, respectively.