Tectonomagmatic char acteristic and geochronology of Gooshe granitoid mass (south west of Arak)

Subject Areas :

عباس Asgari ¹

1 - گروه زمین شناسی دانشگاه آزاد اسلامی واحد محلات

Received: 2016-09-06 Accepted : 2016-09-06 Published : 2009-09-23

Keywords: Goosheh, upper Eocen, Priabonian, Sanandaj- Sirjan, geochronology,

Abstract :

Goosheh granitoid body is located to Sanandaj – Siran Zone (SSZ).The age of this granitoid mass isupper Eocene (priabonian).It consists of Syenogranite, Monzogranite and alkali granite.discriminant geochemical diagram show anorogenic characteristics of this intrusive mass. depletion incompatible element such as Cr, Ni and High Ga/AL , FeO/ MgO+Fe Ratio, and peraluminous indexare characteristic of a type granit (crustal granit) . This body have ( )I = 0.7055 ± 0.004discrimination diagram show WPG for this body (A type granite). Rb-Sr Geochronology methodobtaine age 41 ± 6ma (priabonian) for goosheh granitoid mass.