caa a22 4500 445390085 CHVBK 20180317143044.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00710-011-0144-z doi (NATIONALLICENCE)springer-10.1007/s00710-011-0144-z A cervelleite-like mineral and other Ag-Cu-Te-S minerals [Ag2CuTeS and (Ag,Cu)2TeS] in gold-bearing veins in metamorphic rocks of the Cycladic Blueschist Unit, Kallianou, Evia Island, Greece [Elektronische Daten] [Panagiotis Voudouris, Paul Spry, Gregory Sakellaris, Constantinos Mavrogonatos] A cervelleite-like mineral, two unnamed silver sulfotellurides in the system Ag-Cu-Te-S [Ag2CuTeS, (Ag,Cu)2TeS], Te-rich polybasite and cadmian tetrahedrite occur in gold-bearing quartz veins in metapelites and faults within brecciated marbles of the Cycladic Blueschist Unit in the Kallianou area (southern Evia Island, Greece). The quartz veins and faults are discordant to syn-metamorphic structures and formed during ductile to brittle deformation in the final stages of exhumation of the Styra Nappe extrusion wedge (~21Ma). Te-rich polybasite (up to 7.4 wt. % Te), cadmian tetrahedrite (up to 12.4 wt. % Cd), together with electrum (23-54 wt. % Ag) and the sulfotellurides, are the main silver carriers in the mineralization. The two unnamed sulfotellurides, Ag2CuTeS and (Ag,Cu)2TeS are believed to be new quaternary minerals in the system Ag-Cu-Te-S. These minerals and the cervelleite-like phase could have exsolved from galena during cooling (below 200°C). Initial temperatures for the formation of the sulfotellurides, in the form of hessite-intermediate solid solution, at Kallianou may be up to 300°C under logfS2 values between ~ −11.5 to −8.3, and logfTe2 from ~ −14.8 to −7.8. The values of logfTe2 and logfS2 during re-equilibration (at ~200°C) were constrained to −19.5 to −15.2 and to −15.8 to −11.5 respectively. Springer-Verlag, 2011 Voudouris Panagiotis Department of Mineralogy-Petrology, Faculty of Geology & Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, 15784, Athens, Greece aut Spry Paul Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IA, USA aut Sakellaris Gregory RWTH Aachen University, Aachen, Germany aut Mavrogonatos Constantinos Department of Mineralogy-Petrology, Faculty of Geology & Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, 15784, Athens, Greece aut Mineralogy and Petrology Springer Vienna 101/3-4(2011-03-01), 169-183 0930-0708 101:3-4<169 2011 101 710 https://doi.org/10.1007/s00710-011-0144-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00710-011-0144-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Voudouris Panagiotis Department of Mineralogy-Petrology, Faculty of Geology & Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, 15784, Athens, Greece aut NATIONALLICENCE 700 1- Spry Paul Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IA, USA aut NATIONALLICENCE 700 1- Sakellaris Gregory RWTH Aachen University, Aachen, Germany aut NATIONALLICENCE 700 1- Mavrogonatos Constantinos Department of Mineralogy-Petrology, Faculty of Geology & Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, 15784, Athens, Greece aut NATIONALLICENCE 773 0- Mineralogy and Petrology Springer Vienna 101/3-4(2011-03-01), 169-183 0930-0708 101:3-4<169 2011 101 710 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer