Geodynamic history and sedimentary basin model of Hezardareh Formation

In our country, the formation of the Quaternary period, and in particular the Hezardareh Formation, has been studied very little and many of its sedimentary features are unknown. These deposits are related to the river s environment, which has been abandoned by many floods in the early Quaternary and at the same time as rainy periods In the middle-late Miocene, with the increase in the Alborz shortening rate, the growth of compressive faults has increased and a number of thrust faults have been formed in the Alborz forehead and different sheets have been displaced on each other. With the formation of a new fault, the main fault of the north of Parchin and its reach (north fault of Tehran), the Alborz mountain range is strongly influenced by the level of this fault, and a large difference between this zone and the pre-section (Thousand valley basin) It has emerged. At this time, the basin of the Thousand Durah hosted the eroded and transported materials from the Alborz heights and the rate of sedimentation has risen sharply. At the end of the Miocene and the beginning of the Pliocene, with the continuation of the Alborz shortening along the northern fault of Tehran, a large volume of erosion has entered the 1000-D river basin and accumulated a large amount of continental facies (around 1000 meters). The last phases of the Alpine orogeny, including the Pasadenian phase, have affected the accumulated deposits and given China. The degree of folding is such that sometimes the slope of the layers reaches around 40 degrees in some places. Folding is accompanied by faulting, and a variety of faults have cut and felled these corrosive deposits.