Burkh Anticline having a length of 50 km and a width of 9 km is located 40 km to the north of Bastak City in Internal Fars zone along folded-thrust belt of Zagros. In order to assess the active tectonics in the area of study, morphotectonical indices such as valley index (V), ratio of valley floor to valley height (Vf), channel sinuosity index (S), mountain front faceting index (F%) and mountain front sinuosity(Smf) are studied. These investigations show that the activity is not equal in various sections along Burkh Anticline and the central part of this anticline is the most active one.
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