Writers : Yousefi, F.; Zarin Koob, M. H.; Keramati, F.
Refference : 28th Symposium on Geosciences and the 14th Symposium on Geological Society of Iran
Publishing Year : 1389

Abstract :

In the southwest of Birjand is complex of givshad. This complex consists sub volcanic rocks that outcrops in the paleocene flysch type. Type of this complex is porfiritic diorite. Their texture are porfiric and microgranolar. Plagioclase, amphibole, biotite and Quartz are main minerals. and petty mineral is opaque. zoning observe in this plagioclase. The effective of agents in rise and increase velocity of magma are difference of density between magma and that’s formation environment and creation fracture in surface. For showing of this subject, we use raws of fluors mechanic and modeling.

Subject List : sub volcanic