Writers : Khatib,Mohammad Mahdi;Zarinkoub,Mohammad Hossein
Refference : The 23th Symposium on Geoscience;Tehran
Publishing Year : 1383

Abstract :

Some acidic magmatic intrusions have emplaced in open spaces with rhombohedra shape in northern part of Sistan suture zone. There is some compressional sinstral shear zones with east-west general trend that show with en-echelon pattern in this area. Koch compressional -sinstral shear zone in north-east of Birjand cut and create a brittle deformation zone in tertiary flysch facies in upper part of crust. Due to intersection of R & P fractures within the shear zones created rhombohedra shape fault blocks. The movement of R fractures produced open space with rhombohedra shape. The ratio between maximum diameters to minimum diameter of rhombohedra is 2.2:1 and the attitude of rhombohedra axis are N50E, 67. Rhombohedra and dyke form outcrops of Khoshineh granite show a unique source of magma and emplaced them by structural controlling in Koch compressional sinstral shear zone with N78W, 72NE.

Subject List : Stractural Controller