Active Deformation Patterns in the Northern Birjand Mountains of the Sistan Suture Zone, Iran

In this paper, faults, one of the most important causes geohazards, were investigated from a kinematic and geometric viewpoint in northern part Sistan suture zone (SSZ), which serves as boundary between Afghan Lut blocks. Furthermore, field evidence was analyzed order to assess structural type deformation mechanism research area. Birjand mountain range, several ~E–W striking faults cut through geological units; analyses these indicate that almost all have main reverse components, reveals existing compressional stress study The range is characterized by four with striking: F1–F4. F1 F2 southward dips, while F3 F4 northward dips. Moreover, lengths F1, F2, F3, are 31, 17, 8, 38 km, respectively. These components interactive relationships each other, form high relief structures. area’s including F4, extensions Nehbandan fault system, their kinematics geometry point an N–S pop-up structure.