تحليل ساختار و زمين ساختي طاقديس سبزپوشان بر اساس مطالعات مرفوتكنونيكي و تحليل آماري درزه ها (جنوب غرب ايران )

Structural and Tectonic analyses of The Sabzpushan Anticline Based on Morphotectonic Studies and Statistical Analyses of Joints (SW-Iran)

Sabzpushan Mt. is an anticlinorium located in the Suthwestern area of Shiraz,within the so - called " Zagros Folded Belt". Its axial trend has been diverted from the general NW-SE trend of the Zagros, e.g. from the trend of the two adjacent anticlines (Figurel). It has been rotated in a clockwise direction. A transverse strike-slip fault divides the Sabzpushan Mt. into a bigger northwestern and a smaller southeastern blocks . Qualitative and quantitative methods of morphotectonics illustrate different rate of uplift in different parts of the Mountain . SL-index contour map of the anticline displays that on the widened central part , uplift is symmetric with reference to the axis of the anticline but it is more prominent adjacent to the transverse strike - slip fault . Drainage pattern study of the different parts of this anticline demonstrates that the trend of the anticline axis offsets at the central part. Statistical joint analysis of the different parts show that a local compressional stress trending N66° E has caused a clockwise rotation of the total axial trend of the anticline,a right-lateral movement of Sabzpushan transverse fault, and many other structural and morphotectonic changes.