Cenozoic porphyry and other hydrothermal ore deposits along the South Caucasus-West Iranian tectono-magmatic belt: A critical reappraisal of the controlling factors

Low‐Temperature Thermochronologic Response to Magmatic Reheating: Insights From the Takab Metallogenic District of NW Iran, (Arabia‐Eurasia Collision Zone)

“…The geodynamic setting that caused migmatization, however, is not clear and has been linked either to core complex formation during upper plate (intra‐arc) extension (Shafaii Moghadam et al., 2016, 2017; Stockli et al., 2004) or partial melting of a thickened lithosphere during collisional deformation (Hajialioghli et al., 2011; Honarmand et al., 2018). Partial melting may have been facilitated by the occurrence of a lithospheric scale, inherited boundary such as a slab tear that could have focused asthenospheric upwelling (Rabiee et al., 2020, 2022).…”

“…The TRC presents a few peculiarities such as the exposure of a metamorphic basement and the occurrence of Eocene to late Miocene magmatism and associated mineralizations (Figure 2 and Table 1). The Eocene magmatism has a magmatic arc signature whereas the Miocene magmatism is interpreted as syn-collisional, most likely resulting from partial melting of the Eurasian mantle lithosphere metasomatized by fluids from the subducted Neo-Tethys oceanic lithosphere (e.g., Azizi et al, 2021;Kaislaniemi et al, 2014;Rabiee et al, 2020Rabiee et al, , 2022. Syn-collisional magmatism is spatially and temporally scattered across the entire Arabia-Eurasia collision zone and has been interpreted to occur in areas of variable lithospheric thickness in response to small-scale convection at the lithosphere-asthenosphere boundary (Kaislaniemi et al, 2014).…”