Isotopic characteristics of gold deposits in the Yangshan Gold Belt, West Qinling, central China: Implications for fluid and metal sources and ore genesis

2016 ◽  
Vol 168 ◽  
pp. 103-118 ◽  
Author(s):  
Li-Qiang Yang ◽  
Jun Deng ◽  
Nan Li ◽  
Chuang Zhang ◽  
Xing-Zhong Ji ◽  
...  
Keyword(s):  
Gold Deposits ◽  
Central China ◽  
Ore Genesis ◽  
West Qinling ◽  
Metal Sources

Geology, Pb Isotope Geochemistry and Ore Genesis of the Liziyuan Gold Deposit, West Qinling Orogen, Central China

2018 ◽  
Vol 92 (3) ◽  
pp. 1082-1099 ◽  
Author(s):  
Lele DING ◽  
Laimin ZHU ◽  
Honglin YUAN ◽  
Rukui LU ◽  
Xiao XIONG ◽  
...  
Keyword(s):  
Gold Deposit ◽  
Isotope Geochemistry ◽  
Central China ◽  
Qinling Orogen ◽  
Pb Isotope ◽  
Ore Genesis ◽  
West Qinling ◽  
West Qinling Orogen

Geology, distribution, and classification of gold deposits in the western Qinling belt, central China

2002 ◽  
Vol 37 (3-4) ◽  
pp. 352-377 ◽  
Author(s):  
Jingwen Mao ◽  
Yumin Qiu ◽  
Richard Goldfarb ◽  
Zhaochong Zhang ◽  
Steve Garwin ◽  
...  
Keyword(s):  
Gold Deposits ◽  
Central China ◽  
Western Qinling

Metamorphic fluid superimposition of the Changba–Lijiagou Pb–Zn deposit, West Qinling Orogen, central China

2018 ◽  
Vol 478 (1) ◽  
pp. 265-286 ◽  
Author(s):  
Pei Ni ◽  
Tian-Gang Wang ◽  
Guo-Guang Wang ◽  
Wen-Sheng Li ◽  
Jun-Yi Pan
Keyword(s):  
Central China ◽  
Metamorphic Fluid ◽  
Qinling Orogen ◽  
West Qinling ◽  
West Qinling Orogen

Au-Ag-Te–RICH MELT INCLUSIONS IN HYDROTHERMAL GOLD-QUARTZ VEINS, XIAOQINLING LODE GOLD DISTRICT, CENTRAL CHINA

2021 ◽  
Author(s):  
Wei Jian ◽  
Jingwen Mao ◽  
Bernd Lehmann ◽  
Nigel J. Cook ◽  
Guiqing Xie ◽  
...  
Keyword(s):  
Melt Inclusions ◽  
Experimental Studies ◽  
Gold Deposits ◽  
Central China ◽  
Lode Gold ◽  
Quartz Veins ◽  
The North ◽  
Reduction Mechanisms ◽  
Adsorption Reduction ◽  
Lode Gold Deposits

Abstract We present petrographic and microthermometric evidence for precipitation of Au-Ag-Te–rich melt directly from hydrothermal fluids and subsequent entrapment as primary melt inclusions within pyrite from quartz veins of the Xiaoqinling lode gold district, southern margin of the North China craton. We propose the formation of Au-Ag-Te–rich melt through adsorption-reduction mechanisms on pyrite and subsequent growth of the melt nuclei via direct scavenging of metals from fluids. Because neither initial formation nor later growth of the melt require saturation of the ore fluid with respect to the constituent metals, this mechanism offers a new understanding of the enrichment of low-abundance ore components, such as gold. Our model may thus partly explain the discrepancy between the high gold solubilities reported from experimental studies and the much lower gold concentrations usually measured in natural fluids. This study also implies that Au-Ag-Te–rich melt has probably gone unrecognized in other lode gold deposits in which Au-Ag tellurides are present.

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