Petrofabrics and Final Strain of Muteh-Golpayegan Amphibolites: Evidence of constructional Deformation in Sanandaj-Sirjan Metamorphic Zone

The Muteh–Golpayegan Metamorphic Complex is located within the center of the Sanandaj-Sirjan Metamorphic Zone. The strain parameter measurements by the strain ellipsoid including strain ratio in the XZ principal plane, strain ellipsoid (RXZ), strain ellipsoid shape (K), and strain intensity (D) exhibit prolate  shape for the amphibole mineral for the deformed amphibolitic rocks in the Muteh–Golpayegan Metamorphic Complex. Several kinematic shear sense indicators consist of the asymmetric fold, kink fold, boudin, S/C fabrics, oblique grain shape, and mineral fishes show a dextral shear sense. The quantitative kinematic analyses highlight that Wk varies between 0.6 and 0.93, implying a general shear flow with 42% < simple shear <74% and 26% < pure shear <58%.