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该矿床不同阶段脉石英δ~(18)O值稳定在16‰±,计算的δ~(18)O_(H_2O)达8‰±;脉石英包裹体δD_(H_2O)产值稳定在-60‰±。从地表向不同深度,直到1200m以下,蚀变岩石δ~(18)O值从15‰±,逐渐降为11‰±。各种水-岩交换计算表明,成矿流体是大气降水与千枚岩在350℃和有效W/R值为0.1左右时形成的,当它进入上部矿化体系线形水-岩交换时,有效W/R值增大为5.0以上。进而建立了缓冲开放体系两阶段水-岩交换演化成矿模式。
The δ 18 O values of vein quartz at different stages of the deposit are stable at 16 ‰ ±, and δ 18 O_ (H_2O) is 8 ‰ ±. The output value of δ D_ (H_2O) in vein quartz inclusions is stable at -60 ‰ ± . From the surface to different depths, up to 1200m, the δ 18 O value of alteration rocks gradually decreases from 15 ‰ ± to 11 ‰ ±. Various water-rock exchange calculations show that the ore-forming fluid is formed when the precipitation of the atmosphere and the phyllite at 350 ° C and the effective W / R value of about 0.1, when it enters the linear water-rock exchange of the upper mineralization system W / R value increased to 5.0 or more. Then a two-stage water-rock exchange and mineralization model of buffer open system was established.