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Field characteristics of five Quaternary Faults, surveyed by the author are as follows:
The Astaneh Fault: This fault is situated north west of Damghan and cuts the young Quaternary deposits of the Astaneh valley with left lateral motion.
The Damghan Fault: This fault passes the area north of Damghan. Along Damghan fault, the Quaternary fanglomerates of the Damghan plain are faced to the Olio - Miocene
beds.
The Gorgan Fault: This fault separates the plain of Gorgan from the Southern high mountains. The fault trace can be followed along the mountain foot.
The Babtangol Fault: This fault which is situated along the Kuhhanan fault zone. has cut the Quaternary sediments of the east Zarand pediment right laterally.
The Nozad Fault: This fault is situated east of Birjand and forms the distinct border between the Banddar mountain and Asadabad plain r LL —
The above mentioned Quaternary faults are situated along the pre -Quaternary fault zones
and are the result of reactivation of these faults. The mecanism of faulting has changed from normal to reverse along Gorgan fault, from reverse to strike slip along the Babtangol fault. in the three other ones, fault mecanism has not changed.