Quantitative Geomorphology of analyzing tectonic activity in the Roczek and Shwork rivers valley in the Zagros Mountains (Iraqi Kurdistan)

Study area is located in the higher folded belt in the Zagros Mountain in the Iraqi Kurdistan. Analyzed geomorphic indices included sixteen sub basins: the stream gradient index (SL), drainage basin asymmetry (AF), hypsometric integral (Hi), Valley floor width-valley height ratio (VF) and mountain front sinuosity (J) is obtained relative of tectonic activity in the study area. These indices above based to calculated (lat), so classified theses values into very high, high, modern and low, Basins 3,4 and 16 are very high lat, basins 2, 7,8, 13 , 14, 15 are high relative of tectonic, modern relative are in 5, 9, 10 ,11,12 and low relative of tectonic is in sub basin 1. The uplift of Arabian plate was more impact in the Pleistocene. In the Pleistocene its importance was lesser in comparison with the influence of climate changes. Climate changes result in diversity fluvial processes mainly in the time, variety of neotectonic movements result in their diversity in the space more than in the time.