Relationships between arc maturity and Cu–Mo–Au porphyry and related epithermal mineralization at the Cenozoic Arasbaran magmatic belt

Multiphase magma intrusion, ore-enhancement and hydrothermal carbonatisation in the Siah-Kamar porphyry Mo deposit, Urumieh-Dokhtar magmatic zone, NW Iran

“…Similar Eocene-Oligocene high-K calc-alkaline to shoshonitic magmatism as reported from the SKMD (Khaleghi et al, 2013;Nabatian et al, 2017b) has been also reported in many studies along the UDMZ, AMZ, BAMZ, Lesser Caucasus, and the western Alborz (e.g., Aftabi and Atapour, 2000;Ahmadian et al, 2009;Aghazadeh et al, 2010;Sarjoughian et al, 2012;Kananian et al, 2014;Jamali and Mehrabi, 2015) (Fig. 1).…”

Eocene K-rich adakitic rocks in the Central Iran: Implications for evaluating its Cu–Au–Mo metallogenic potential

“…We suggest that the slower convergence rate caused crustal thickening (e.g., Shellnutt et al, 2014) and that caused increasing crustal thickness caused , which resulted in delamination of the lower crust and emplacement of the hot asthenosphere that generated the adakitic magmatism (Jamali and Mehrabi, 2015). This delaminated lower crust hypothesis generally involves continent-continent collision and (or) intracontinental subduction, crustal thickening, and then delamination (see Wang et al, 2007d);…”

Zircon U–Pb ages and petrogenesis of late Miocene adakitic rocks from the Sari Gunay gold deposit, NW Iran

“…Numerous researchers have postulated a genetic relation between adakitic melts and the generation of porphyry Cu-Au deposits (Sajona & Maury, 1998;Castillo, 2012;Richards et al 2012;Lohmeier et al 2019). A genetic relationship between adakitic melts and porphyry Cu-Au deposits is well recognized in Iran (Jamali et al 2010;Aghazadeh et al 2011;Asadi et al 2014;Jamali & Mehrabi, 2015;Alirezaei et al 2017). Furthermore, a genetic relation seems to exist between the adakitic volcanic rocks and the Au deposit in the Sari Gunay area, which is the subject of the present study.…”

“…Cenozoic calc-alkaline adakite-like magmas of the Arasbaran belt (Fig. 1) originated from partial melting of peridotites, while Neogene magmas of this belt were generated by partial melting of garnet-bearing hydrous amphibolite at the lower crust (Jamali & Mehrabi, 2015). Furthermore, the adakites in the northern SaSZ originated from melting of the metasomatic mantle wedge above the oceanic slab, accompanied by minor assimilation of lower mafic calc alkaline continental crust (Azizi et al 2014a(Azizi et al , 2015.…”