Petrology, mineral chemistry and petrogenesis of metapelites of Tanbour metamorphic complex, east of Sirjan (Kerman province)

Tanbour metamorphic complex east of Sirjan is compoused of metasediments and metabasic rocks. Petrofabric study of this complex shows two metamorphic and two deformational phases. Chemical studies of index minerals indicate that second phase of metamorphism occurred with a degree up to lower amphibolite facies. Mineral assemblage of first phase are biotite, muscovite and garnet while staurolite appears in peak of second phase of metamorphism. Mineral chemistry studies indicate that second phase of metamorphism occurred up to staurolite zone. Tempretures and pressures about 550-590 ºC and 7-8/48 kb were also estimated using geothermobarometry. The data suggest that these metamorphic rocks underwent a medium P metamorphic event