Conodont biostratigraphy of the Upper Devonian–Lower Carboniferous Shahmirzad section, central Alborz, Iran

Mississippian lithofacies and foraminiferal biozonation of the Alborz Mountains, Iran: Implications for regional geology

“…The southern Alborz emerged after the Tournaisian and experienced nondeposition up to the Early Permian (Figures and ). Furthermore, in some areas such as Semnan (Shahmirzad and Peyghambaran sections), the sedimentary gap persists through the Triassic (Habibi et al, ). Hence, the Triassic Elika Formation overlies the Tournaisian Mobarak Formation with a lateritic contact (Habibi et al, ; Mosaddegh, ; this study).…”

“…The Alborz Mountains have attracted for a long time the attention of stratigraphers and palaeontologists for relatively rich fossiliferous, complete successions ranging from the Neoproterozoic–Cambrian (Brasier et al, ; Etemad‐Saeed et al, ; Hamdi, Brasier, & Zhiwen, ), Ordovician–Silurian (Jenny, ; Popov, Bassett, Holmer, & Ghobadi‐Pour, ), Devonian–Carboniferous (Alipour, Hosseini‐Nezhad, Vachard, & Rashidi, ; Habibi, Corradini, & Yazdi, ; Vachard, ), and Permian (Angiolini, Checconi, Gaetani, & Rettori, ; Gaetani et al, ; Zandkarimi, Najafian, Bahrammanesh, & Vachard, ) through Mesozoic (Fürsich, Wilmsen, Seyed‐Emami, & Majidifard, ; Seyed‐Emami, Fürsich, Wilmsen, Schairer, & Majidifard, ) to Cenozoic (Mehr & Adabi, ). The Alborz Mountains are also of high potential for researches on the active tectonics and seismology (Asiabar & Bagheriyan, ; Berberian, Qorashi, Jackson, Priestley, & Wallace, ; Berberian & Walker, ; Ehteshami‐Moinabadi, ; Ehteshami‐Moinabadi & Yassaghi, ; Ritz et al, ) and Palaeo‐Tethys evolution (Alavi, ; Rossetti et al, ; Şengör, ; Zanchetta, Zanchi, Villa, Poli, & Muttoni, ; Zanchi, Berra, Mattei, Ghassemi, & Sabouri, ).…”

“…The Mobarak Formation was introduced by Assereto () in the Mobarakabad area, central Alborz, and comprises black fossiliferous limestone with subordinate black marl in the lower part. It has been widely studied and dated in central Alborz using brachiopods (Bahrammanesh, Angiolini, Antonelli, Aghababalou, & Gaetani, ; Gaetani, , , ; Qiao, Falahatgar, & Shen, ), conodonts (Ahmadzadeh Heravi, ; Habibi et al, ), and foraminifers (Bozorgnia, ; Devuyst & Kalvoda, ; Falahatgar, Vachard, & Sakha, ; Vachard, ; Zandkarimi, ; Zandkarimi, Najafian, Vachard, Bahrammanesh, & Vaziri, ; Zandkarimi, Vachard, Cózar, et al, ; Zandkarimi, Vachard, Najafian, Hamdi, & Mosaddegh, ). The Mississippian of the north‐eastern Alborz in addition to the Mobarak Formation contains relatively similar strata to the Dozdehban Formation, which was referred to as the “Bagherabad Formation” (Leven & Gorgij, ; Lys, Stampfli, & Jenny, ).…”

Devonian palaeobiogeographic affinities of Afghanistan and surrounding areas (Iran, Pakistan)

“…Vachard (1996) emphasized the presence of a complete Devonian succession in eastern Alborz, whereas in Central Alborz the Devonian is reduced to its highest part. Conodont studies have been more developed in Iran (Weddige, 1983(Weddige, , 1984bYazdi, 1999;Turner et al, 2002;Wendt et al, 2002Wendt et al, , 2005Gholamalian, 2003Gholamalian, , 2007Ashouri, 2006;Habibi et al, 2008;Bahrami et al, 2011) than in Afghanistan.…”

Conodont biostratigraphy of the upper Frasnian-lower Famennian transitional deposits in the Shotori Range, Tabas area, Central-East Iran Microplate

“…In the central Alborz Mountains, north Iran, Upper Devonian rocks belongs to the Geirud Formation (Assereto 1963), a huge sequence of shales, quartzites, sandstones, conglomerates and sandy limestones deposed in a fluvial deltaic to shallow marine environment (Ueno et al 1997, Wendt et al 2005, Habibi et al 2008. The fossils content is in general scarce and is mainly represented by brachiopods and palynomorphs, that allow to date the unit to a late Middle Devonian to Early Carboniferous, but are not sufficient to precisely locate the F/F boundary in any section.…”