introduction iran forms a relatively compact zone of active continental deformation resulted from the northward collision of arabia with eurasia during late cenozoic times, which is continuing to the present-day at a rate of 25 mm/yrs (from gps data). evidences of active tectonic in different parts of iran, has been studied and identified. the arid climate, low rates of erosion, and minimal veg...

A poorly defined boundary between the Nubia and Eurasian plates runs along Northern Tunisian continental margin. The Tunisia margin is deformed by a slow NW–SE trending convergence resulting in diffuse deformation zone with scarce scattered seismicity compared to seismic activity into neighboring regions east west boundary. area has been studied therefore its recent evolution almost unknown, pa...

The concept of tectonics has always been dependent on the duality between technology and representation. Botticher (1852) acknowledged the tectonic duality between structure and cladding. Semper (1951), conversely, highlighted the role of the joint in tectonics within its four elements of earthwork, hearth, framework–roof and enclosing membrane. His approach promoted the essence of the presence...

abstract alluvial fans are the most striking phenomena o fluvial geomorphology . these forms are found in frount of mountains and pediments of arid and semiarid zones . alluvial fans are affected by climate changes and tectonics . occurring of tectonic events lead to reaction of alluvial fans . some of these reactions appear on dissection of alluvial fans and displacement of depocenters on allu...