The Morphotectonic Study of Lut Formation by using landsat satellite images (ETM+)

Abstract

The subject of this paper is deformations results in Lut Formation. In the past studies, researchers announced that Yardang troughs have been formed by wind & water erosin, thus they selected the Hydroeolian term for this kind of erosion. Nevertheless, in this paper it will be mentioned that besides of wind factor lineaments are so important as well through use of satellite images. The satellite image of Lut 's vastness displays a set of lineaments correspond with major & wide troughs in the north area  causing right-lateral displacement in the shoor river course; and can be followed up to young alluvial in the 31 00 N. At last, they will join to meet the nayband fault. Some of lineaments have affected the olivine basalt flows with quaternary age and cause right – lateral movement on their length. The path of lineaments show that the trend of N 30 W in 30 40 N comes to be N 20 W in 29 50 N and keep their sigmoidal shape. They come close beneath the 29 50 N with the shape of splay. The lineaments have also vertical components because the width of segments in the top of 30 00 N have gradually decreased in southwest and show shortening.

Keywords: Morphotectonic, Yardang trough, Hydroeolian, Lineament, landsat satellite images (ETM⁺)  , sigmoidal, splay