Özet:

The work area is located in the southeastern Anatolian region, east of the Dicle Division. This area is also equal to the eastern border of the southeastern Anadolu region. The current structural characteristics and tectonic formation of the work area and surrounding curvation systems occurred with Alpine orogenesis. In the work area that occurred depending on the fasting movements towards the north, Jura-type curvations were formed. The field of study has taken the present morphological appearance as a result of the mutual interaction of structural-tektonism and fluvial effects. The important of the structural origins of the morphological units in the area, Gercüş and Raman are anti-clinical. In the field of study, the semi-terrestrial climate characteristics that dominate a large part of the southeastern Anadolu region are seen, and as a result, the natural plant cover is the step formation. It is the river of Dicle. The Ilısu barge project and barge lake, which is thought to be made on this river, will also affect the work area. After the project is carried out, different views are made on how the natural environment will be affected and the level of physical-human destruction that will arise. Keywords: Anti-clinals, curved structures, subsecant depression, Dicle river, cavity drainage. The research area is on the east of Dicle (Tigris) Basen in the Southestern Anatolia Region. This division is on the east border of the Southest Anatolia Region at the same time. The structural features and tectonic shaping of the research area has been realized with alpine orogenesis. In the reserch area which is affiliated with Northern and Southern folding movements, the Jura foldings has been formed.  The present morphological apperance of the research area has been occured with the reciprocal interaction of the structure-tectonism and fluvial effects.The most important morphological structure of the research area is Gercüş and Raman anticlinal. In the research area, the semi-terestrial climate type is common in the Southeastern Anatolia Region and as a result of this the natural vegetation is the steppe formation.  The most important stream of the research area is Dicle (Tigris) River. The project of the Ilısu Dam and dam lake, which is to be constructed on the Dicle River will affect the research area. After the realization of the project, there are various ideas about how the natural environment will be affected and the level of the occurring physical - human devastation. Keys Words: Anti-Clinal, Folded Structure, Sub Secant Depression, Tigris River, orthogonal drainage.