合仁坪金矿H-O-S-Pb同位素地球化学特征及其成因机制.

The geochemical analysis of H-O-S-Pb isotopes in the Herenping Gold Mine was carried out. The δ34S values of sulfides from ore lie in-4.8‰~2.0‰. The ratios of 206Pb/204Pb， 207Pb/204Pb and 208Pb/204Pb from sulfide ores are 17.419~17.436， 15.519~15.535 and 37.86~37.90， respectively. The δD values of the fluid fall in-62.3‰~-53.0‰，and the δ18O values of the fluid are 4.2‰~11.8‰. These sulfur， lead， hydrogen and oxygen composition indicate that the ore-forming materials originate from the depth and the ore-forming fluid from magmatic hydrothermal， and mineralization has the characteristics of redox which formed the faded alteration zone in the region. Considering that the Herenping gold deposit is related to the deep magmatism， the ore prospecting should focus on the redox interface in the host strata and the faded alteration is the main indicator for the deposit. [ABSTRACT FROM AUTHOR]