The Influence of Active Tectonic on Morphology of Derakhtangan Alluvial Fan of (Shahdad in Kerman)

The alluvial fan of the Shahdad in Derakhtangan River is one of the biggest alluvial in perfectly dry region in the north- north eastern Kerman. This alluvial fan is formed by the effect of different materials erosion in to the drainage basin of Derakhtangan river and laying these materials in the final part of this drainage basin called Lut plain. Tectonic acts with efficacy in the place of the settlements of the alluvial fan. The region, which is being studied, is one of the active tectonic regions. The severe tectonic activities in the studied region have been proved by several evidences. One of the most important evidences in the region is the various faults in the area and imply to fan alluvium (from head to end), study line profile in past and present. The most important fault of the region is the great fault of "Nay band“the southern fault of "shahdad" and the series of faults having the direction of "north–western to south-eastern and northern and Southern". The drainage basin of alluvial fan of the Derakhtangan river leads from east to "Kavir-lut" and from west to the mountains of "Baghe–Bala and Kalisaky" from north to the altitutes of "Dahran" and from south to the mountains of "Jeftan". The aim of this article is the morphology of Derakhtangan river fan indicative on neotectonics in the region.