Abstract
Safed-koh Trend is located in D.G.Khan district, Punjab province, Pakistan. It is a north south trending fold belt that lies in Eastern Part of Sulaiman Fold Belt. Seismic data correlation is done with the help of well data, Formations' tops, Synthetics and general stratigraphy of the area. The Structural and Stratigraphical interpretation shows subsurface variations. Depth model shows Dhodak, Rodho, Afiband and Zindapir anticlines, the four culminations of Safed-Koh Trend without marking the faults. Dhodak is a northern lower most culmination. Zindapir is the most uplifted one and broader structure comparatively that lies at southern edge. 3D subsurface Time & Depth models of Rubbly Limestone, Dunghan Formation, Pab Sandstone, Lower Goru Formation and Chiltan Limestone map Dhodak anticlinal structure with reverse faults at its flanks. Dunghan, Ranikot, Pab and Chiltan Formations in this area have already proved to be good quality reservoirs for gas. Pab Sandstone and sands of Lower Goru Formation of Cretaceous and Chilton Limestone of Jurassic age could also be the important reservoirs in unexplored area. Rock Physics analysis of Chilton Formation confirms the hydrocarbon potential.
Highlights
Research area comprises of Safed Koh Trend, a first line of folding of Sulaiman Fold Belt, Pakistan
Muhammad Iqbal et al, (2004) suggest basement of the Indo-Pakistan is involved in structural deformation of Zindapir Anticlinorium and its surroundings
Research area lies in the Central Indus Basin of Pakistan
Summary
Humayon et al (1991) and Jadoon et al (1994) interpretated structurally the eastern & central Sulaiman Foldbelt, on the basis of surface geology and seismic analysis. According to them the sedimentary strata was detached from the basement with a floor thrust in Paleozoic strata and roof-thrust in Cretaceous (Sembar Formation) except in the frontal part of the Sulaiman Foldbelt where it occurs in Eocene sequences. Kemal et al; (1991) consider East Sulaiman structural play of narrow straight anticlines as Structural and Stratigraphical Interpretation of Seismic Profiles along. Flower Structure due to large scale distributive wrench faulting. Lillie et al (1987), Humayun et al (1991) and Jadoon et al (1992) believed there is a basal decollement in pelitic rocks or fine carbonates above the crystalline basement at a depth more than 11 km
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