Lead isotope systematics of porphyry–epithermal spectrum of the Birgilda–Tomino ore cluster in the South Urals, Russia

Trace-element geochemistry of molybdenite from porphyry Cu deposits of the Birgilda-Tomino ore cluster (South Urals, Russia)

“…The general geology and tectonic setting of the Birgilda-Tomino ore cluster were described in detail by Puzhakov (1999), Grabezhev et al (1998) and Plotinskaya et al (2014bPlotinskaya et al ( , 2017a. The ore cluster is located within the East-Uralian Volcanic Terrane (the shaded area in the inset of Fig.…”

“…The Sm-Nd systematics of the diorite porphyry intrusions of the Birgilda-Tomino igneous complex (Grabezhev, 2009) confirms a mantle-derived source of the magma and most of the metals. A lead isotope study (Plotinskaya et al, 2017a) also provided evidence for a mantle-derived lead source. There was, however, the possibility of some input of both magma and metals from a crustal source such as might have been produced in a mature volcanic arc with the input of sediments containing crustal lead from denudation of pre-Cambrian crust into a subduction zone.…”

“…(1998) and Plotinskaya et al . (2014 b , 2017 a , b ). The ore cluster is located within the East-Uralian Volcanic Terrane (the shaded area in the inset of Fig.…”

“…Grabezhev and Shagalov, 2010; Grabezhev and Gmyra, 2014; Grabezhev and Hiller, 2015; Grabezhev and Voudouris, 2015; Plotinskaya et al ., 2014 a , 2015). Among the numerous porphyry deposits and occurrences known in the Urals (Plotinskaya et al ., 2017 a , b ) the area of the Birgilda-Tomino ore cluster is one of the most interesting due to a remarkable variability of styles of mineralization (Plotinskaya et al ., 2014 b ) and it is economically promising because of the large Tomino porphyry copper deposit. The rhenium distribution in molybdenite from the Tomino deposit was described by Grabezhev and Hiller (2015).…”