Frontal Fars Paleo-High evolution history, SE Zagros fold-and-thrust belt

A synthesis of 2-D seismic interpretation, exploration well data and field survey permit us to decipher the structural evolution history in the front of Fars paleo-high area, located in SE Zagros fold-and-thrust belt. In the current study, a structural evolution model is proposed for the region, according to a sequential restoration, which was performed based on the growth stratal unit’s pattern, together with constant length and area assumptions. The result of the sequential restoration indicated that in the late Eocene time, Tanbak anticline incepted on the hangingwall of the inverted mountain front basement fault, as an out of sequence forced fold. Although, thin-skinned detachment folding initiated in the lower Miocene, shortening and amplification of anticlines did not accelarated until the late Miocene time, when thrust faults formed on the limb of growing anticlines while Dashtak middle detachment thickened in the fold crestal areas, likely due to an intensified regional shortening.