نشانه های ترافشارش و تقسیم‌شدگی کرنش حاصل از کوهزاد ایوسیمرین در پنجره فرسایشی ‏آق‌دربند

Theerosional window of aghdarband , located in ne iran to the se of mashhad is a unique place for study of the eo-cimmerian event. this ‎event (late triassic-middle jurassic) resulted from clousureof thepaleothetys ocean and collision between the iran and turan plates. these two ‎plates were separated from each other before late triassic, and therefore they had different tectonic and sedimentary histories. at this time the ‎aghdarband area was located on active margin of eurasia, and therefore the units that are exposed in the erosional wiondow of aghdarband have ‎basic differences with their counterparts in other places of iran. during the eo-cimmerian event, the aghdarband area was affected by a ‎sinistraltranspression. strain in this transpressional zone was intensively partitioned, and three major structural domains with different structural ‎characteristics were formed in it. a sinistral strike-slip fault zone and an imbricate thrust fault zone were formed respectively in northern and ‎southern part of the aghdarband area. development of this transpressional zone may be attributed to the oblique convergence between iran and ‎turan plates during above mentioned time interval‎