PALEOSTRUCTURAL ANALYSIS OF MESOZOIC–CENOZOIC DEPOSITS IN THE SOUTHWESTERN GISSAR PETROLEUM REGION
The effectiveness of oil and gas exploration in complex geological environments directly depends on the accuracy of reconstructing
structural trap development history. Based on a paleostructural analysis of the Mesozoic–Cenozoic sedimentary cover in the
Southwestern Gissar petroleum region, this paper reconstructs its tectonic evolution and establishes the evolutionary stages of its
main structural elements. The study relies on a detailed stratigraphic breakdown of 70 wells. A structural map on top of the Middle–
Upper Jurassic carbonate deposits was selected as a key reference horizon, from which a series of six paleostructural maps was
constructed by sequentially adding the thicknesses of overlying strata. Paleostructural modeling reconstructed the regional tectonic
evolution—from the formation of the Dehkanabad Trough in the Late Jurassic to the Paleogene growth of anticlinal zones—
demonstrating high consistency with the present-day structural framework.
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