中条山铜矿床同位素地球化学研究

摘要

笔者对中条山绛县群和中条群主要铜矿床进行铅、硫、碳、氢、氧同位素测定,获得:横岭关型矿床的206Pb/204Pb比值为17.746～19.270,207Pb/204Pb比值为15.500～15.684,208Pb/204Pb比值为37.236～39.931,硫化物的δ34S值为-8.1‰～+36.9‰,δ18OH2O值为+1.7‰～+5.7‰,δD值为-58.4‰～-111.3‰;铜矿峪型矿床的206Pb/204Pb比值为18.040～46.243,207Pb/204Pb比值为15.565～18.765,208Pb/204Pb比值为37.682～69.623,硫化物的δ34S值为-7.2‰～+10.2‰,δ18OH2O为+6.3‰～+10.5‰,δD值为-52.8‰～-123.3‰;落家河型矿床的206Pb/204Pb比值为17.591～19.270,207Pb/204Pb比值为15.494～15.684,208Pb/204Pb比值为37.263～39.931,硫化物的δ34S值为-1‰～21.9‰,δ18OH2O值为+3.6‰～+6.4‰,δD值为-35.8‰～-70‰;胡-蓖型矿床206Pb/204Pb比值为18.097～249.50,207Pb/204Pb比值为15.578～44.230,208Pb/204Pb比值为35.379～51.480,硫化物的δ34S值为3.4‰～23.2‰,δ18OH2O值为+7.5‰～+12.5‰,δD值为-36.3‰～-72.2‰。