Geometric analysis of fault-related folding of active Balarud blind fault: A case study from Siah Kuh anticline, SW Iran

The Siah Kuh anticline is located between Lorestan (in North) and Dezful Embayment (in South) zones in the Zagros fold-thrust belt. This anticline and adjacent anticlines are affected by the Balarud blind thrust fault zone, which is a part of Mountain Front Fault. The Mountain Front Fault is a major topographic front that is traced along the Zagros fold-thrust belt in the Izeh, Fars, Lorestan and Dezful Embayments. The field observations, analyses of the geometric parameters and comparison of the anticline with the theoretical fault-related folding models suggest that the Siah Kuh anticline, as a Transported Fault-Propagation Fold, is sheared by Balarud fault zone. The position of this anticline confirms this suggestion.