Fig. 1

Colored upper part shows the geological map of the Kopet Dagh and the East Alborz (modified after Afshar 1982, 1983; Afshar et al. 1984; Afshar Harb et al. 1986; Behrouzi et al. 1993; Bolourchi et al. 1987; Eftekhar-Nezhad et al. 1992; Jalilian et al. 1992; Tatavousian et al. 1993). Red circled arrows indicate local vertical-axis rotation (Hollingsworth et al. 2010). Black rectangle shows location of Fig. 2. Gray-scaled lower left part shows Iran and its tectonic blocks and major sutures. Blue and orange arrows indicate paleomagnetic directions from Mattei et al. (2017; 2019) related to oroclinal bending of the Alborz. Black square indicates location of the colored map above