H–O, S and Pb isotope geochemistry of the Awanda gold deposit in southern Tianshan, Central Asian orogenic belt: Implications for fluid regime and metallogeny

Electron microprobe analyses of ore minerals and H–O, S isotope geochemistry of the Yuerya gold deposit, eastern Hebei, China: Implications for ore genesis and mineralization

“…O water values that are typical of magmatic fluids (5.5‰-9.5‰; Ohmoto, 1986;Sheppard, 1986) and similar to other Mesozoic granitoid-related gold deposits within the NCC (e.g., 4.5‰-5.7‰ for the Anjiayingzi gold deposit in Inner Mongolia, Li et al, 2004a;5.0‰-7.5‰ for the Qiyugou gold deposit in Henan Province, Fan et al, 2011), but distinctly lower than the values expected for orogenic gold deposits (e.g., 8‰-16‰ for gold deposits within the North American Cordillera, Jia et al, 2003;6.7‰-14.7‰ for the Sawayaerdun gold deposit within the Tianshan orogenic belt, Chen et al, 2012;6.9‰-11.2‰ for the Jinshan gold deposit in southern China, Zhao et al, 2013;7.8‰-12.2‰ for the Awanda gold deposit, Ding et al, 2014). These data indicate that the fluids that formed the Yuerya gold deposit are dominated by a magmatic component, as exemplified by the fact that the majority of the data for the deposit either overlap or plot close to the field for primary magmatic fluids (Fig.…”

“…Other data are from Kong et al (2013 fluids contain a proportion of mantle-derived and/or magmatic fluids. In addition, the δD values of ore-forming fluids associated with the Yuerya gold deposit are different from those associated with orogenic gold deposits associated with fluids that are presumed to have a metamorphic origin (e.g., −65‰ to −10‰ for gold deposits of the North American Cordillera, Jia et al, 2003; −71‰ to −46‰ for the Jinshan gold deposit within southern China, Zhao et al, 2013;−116.3‰ to −87.6‰ for the Awanda gold deposit within the Tarim Block of NW China, Ding et al, 2014), but are similar to numerous other Mesozoic granitoidrelated gold deposits within the NCC (e.g., −63.8‰ to −80.6‰ for the Sanshandao gold deposit within the Jiaodong gold province, Fan et al, 2003; −60.1‰ to −83.6‰ for the Qiyugou gold deposit in Henan Province, Fan et al, 2011). The δ…”

“…O values for quartz also differ from the compositions of quartz from numerous Archean to Cenozoic orogenic gold deposits (e.g., 14.6‰-22.2‰ for gold-bearing veins quartz within the North American Cordillera, Jia et al, 2003;16.2‰-17.6‰ for the Jinshan gold deposit, Zhao et al, 2013;15.9‰-20.3‰ for the Awanda gold deposit, Ding et al, 2014), but again are similar to numerous other Mesozoic granitoid-related gold deposits within the NCC (e.g., 10.2‰-13.7‰ for the Sanshandao gold deposit, Fan et al, 2003;10.3‰-11.9‰ for the Qiyugou gold deposit, Fan et al, 2011). The calculated δ…”

Gold‐copper deposits in Wushitala, Southern Tianshan, Northwest China: Application of ASTER data for mineral exploration

“…The Southern Tianshan area is one of the most important gold belts in Asia and hosts numerous gold and gold-copper deposits (Ding et al, 2014;Gao et al, 2009;Graupner et al, 2006;Seltmann, Konopelko, Biske, Divaev, & Sergeev, 2011;Xue et al, 2014). Some medium to small gold deposits (e.g., Sawayaerdun and Dashankou) have been discovered in recent years within Chinese territory along the belt (Chen, Zhang, Li, & Zhang, 2013;Liu et al, 2007;Yang et al, 2005).…”

40Ar/39Ar dating, fluid inclusions and S–Pb isotope systematics of the Shabaosi gold deposit, Heilongjiang Province, China

“…The δ 34 S values of sulphides from the Shabaosi gold deposit are slightly lower than the published δ 34 S values for most orogenic gold deposits elsewhere (typically δ 34 S = 0-9‰, Groves et al, 1998;Kerrich et al, 2000;Goldfarb et al, 2001), but are generally similar to some of the sediment-hosted orogenic gold deposits (Chang et al, 2008), such as from À0.13‰ to 7.3‰ in Amantaytau gold deposit in Uzbekistan (Pasava et al, 2013), À5.0‰ to 2.3‰ in Macraes gold deposit in New Zealand (Craw et al, 1995), À6.3‰ to 2.6‰ in Natalka gold deposit in Russia (Eremin et al, 1994), À1.4‰ to 9.3‰ in the Bendigo gold deposit in Australia (Bierlein et al, 2004) and À3.6‰ to 6.2‰ in the Awanda gold deposit in China (Ding et al, 2014 The gases of fluid inclusions from auriferous quartz sample were released by progressive crushing 25 547 times during steps 1-33. The δ 34 S values of sulphides from the Shabaosi gold deposit are slightly lower than the published δ 34 S values for most orogenic gold deposits elsewhere (typically δ 34 S = 0-9‰, Groves et al, 1998;Kerrich et al, 2000;Goldfarb et al, 2001), but are generally similar to some of the sediment-hosted orogenic gold deposits (Chang et al, 2008), such as from À0.13‰ to 7.3‰ in Amantaytau gold deposit in Uzbekistan (Pasava et al, 2013), À5.0‰ to 2.3‰ in Macraes gold deposit in New Zealand (Craw et al, 1995), À6.3‰ to 2.6‰ in Natalka gold deposit in Russia (Eremin et al, 1994), À1.4‰ to 9.3‰ in the Bendigo gold deposit in Australia (Bierlein et al, 2004) and À3.6‰ to 6.2‰ in the Awanda gold deposit in China (Ding et al, 2014 The gases of fluid inclusions from auriferous quartz sample were released by progressive crushing 25 547 times during steps 1-33.…”