Writers : Babaei, L.; Khatib, M. M.; Zarinkoub, M. H.
Refference : 29th symposium on geosciences
Publishing Year : 1389

Abstract :

There are some dykes with different strikes, dip and dip directions in Rokat area, in southwest of Birjand. Their strikes are N96, N28, N41, N64 and N88. There are two faults with left lateral characteristic in north and south of studied area, that their operations caused left lateral shear zone in this area. After that, the magma is injected into joints that are created by shear zone in form of dykes. Microscopic data like boudinage and plagiodase directions in NW-SE and NE-SW show that different stress fields are forced on this area. The first maximum principle stress is N220 and minimum is N130. But because of left lateral shear zone these stress field is rotate and the maximum principle stress is N160 and the minimum is N70. Micro-faults strikes follow the macro-faults in this area.

Subject List : Stress