Studying the mylonite gabbroes petrography in the northeast of Serow(west Azarbaijan)

Category Other
Group GSI.IR
Location 20th symposium on geosciences
Holding Date 16 April 2008

     The investigated area is located to the NE of Serow. In this region, granitoid and gabbroic mylonites are outcropped, which are dynamically metamorphosed during shearing.
The basic rocks which are mylonitized show typical foliation, stretching lineation, porphyroclast with monoclinic symmetry,
synthetic and antithetic structures with shear sense, mica fish, S-C fabrics and banding segregation, all produced in non-coaxial shear zones.
These rocks are essentially composed of plagioclase, hornblende, actinolite, chlorite, epidote with very rare remnant of pyroxene. In many basic mylonites primary textures and structures and minerals of magmatic origin are still preserved.
In this region, metamorphism is consistent with upper and lower boundaries of epidote-amphibolite sub facies.