Lithofacies, architectural elements and tectonic provenance of the siliciclastic rocks of the Lower Permian Dorud Formation in the Alborz Mountain Range, Northern Iran

• Dorud Formation is Lower Permian in age.
• The Dorud Formation consists of siliciclastic sediments.
• 7 lithofacies, 2 petrofacies and 4 architectural elements were recognized in this formation.
• The Dorud Formation was deposited in the sandy meandering river.
• The Dorud Formation was deposited under humid weather in a craton interior and on a recycled tectonic setting.

The siliciclastic deposits of the Lower Permian Dorud Formation widely crop out in the eastern part of the Alborz Mountain Range (northern Iran). In order to interpret the sedimentary environments and tectonic provenance of these deposits, two sections in the Kiyasar and Talmadareh with 112 and 122 m thickness, respectively; have been studied. The analysis of lithofacies and architectural elements, leads to recognition of seven lithofacies (Gmm, Sr, Sl, Sh, Sp, Fl, and Fm), and four architectural elements (FF, LA, CH, and CR). Based on these results, the sedimentary environment of these deposits has been identified as a sandy meandering river. The petrographical analysis indicates that these sediments were deposited under humid weather in the craton interior and recycled orogeny tectonic provenance.