Evaluation of the activity of the tectonic processes in the channel of the lower Zab river from Delga to Derband of Rania

الملخص

This research is about geomorphology and geometric of the Lower Zab river channel between Delga into to Derband of Rania in Pshdar district, it is by using of some coefficient geomorphology index for river basin with the way of occurring. It can show the tectonic activities in the research area; the purpose of this research is to evaluate the activity of the tectonics in the fourth round of the Lower Zab River Path in the research area, along the foot of the Asos Mountain Range on the right side of the path. The river is from Dalga village to Darband of Rania, and the importance of this research is that it shows the continued influence of tectonically activities in the research area through these blocks, these Indexes are used by some of the researchers for recent geomorphological research in the different regions in the world. In this research we depend of (DEM 12.m) by using (ARCGIS. version. 10.8), with applied metrical coefficient geomorphology index on the main stream water of lower Zab river in the research area. the results will illustrate the serve, moderate and light tectonic activity with used of methods for each coefficient. In general, the value of all coefficient in the tectonic activity in the research area are high. Therefore, it means abrasion and erosion are high in the river channel, especially in the north of the lower Zab river in the research area, because the mainstream river is located in the rift and fault area, along the foot of the Asos Mountain Range