Tehran Plain
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The Tehran Plain is a landscape formation in Iran delimited by the adjacent Alborz Mountain range. It is a site of prehistoric archaeological and geoscientific interest. Numerous faults and deformed quaternary units in the Tehran plain prove it is a region of ancient tectonic activity.
The Tehran Plain is a landscape formation in Iran. It consists of Neogene and Quaternary sediments.[1]
The North Tehran Fault thrust up Eocene rocks of the Alborz Mountain range. Geomorphologically three different zones can be described:[1] In the western part, the plain has been deformed by thrusting, as can be seen by a segmented and internally deformed anticline and old and diverted channels on both sides. This process has been dated at possibly after 25,000 years. In the central part of the plain, which lies below the megacity of Tehran, thrusting and left-lateral strike-slip faulting has caused several uplifted fluvial terraces, reminiscent of a transpressional structure of uncertain age, possibly ~195,000 years, i.e. Pleistocene.
In the Eastern part, ramp-structures are ~195,000y-old, of middle Pleistocene.[1]