| 中条山铜矿床同位素地球化学研究 |
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| 引用本文：徐文忻,汪礼明,李蘅,郭新生.2005.中条山铜矿床同位素地球化学研究[J].地球学报,26(z1):130-133. |
| DOI：10.3975/cagsb.2005.s1.45 |
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| 基金项目:本文为山西省地质矿产局地质所资助项目。 |
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| 中文摘要: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15.500~15.684，208 Pb/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,硫化物的产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206 Pb/204 Pb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‰。 |
| 中文关键词:稳定同位素 铜矿床 中条山 |
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| Isotope Geochemistry of Copper Deposits in the Zhongtiao Mountain |
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| Abstract:Lead, sulfur, carbon, hydrogen and oxygen isotope determination was carried out for copper deposits in the Zhongtiao Mountain, which yielded various kinds of data. In the Henglinguan type ore deposits, 206Pb/204Pb ratios are 17.746~19.270, 207Pb/204Pb ratios are 15.500~15.684,208Pb/204Pb ratios are 37.236~39.931，δ34S values of sulfides are -8.1‰~+36.9‰，δ13C values of carbonate rock are-7.1‰~+2.6‰, δ18O values of water are +1.7‰~+5.7‰, and δD values are-58.4‰~-111.3‰. In the Tongkuangyu type ore deposits, 206Pb/204Pb ratios are 18.040~46.243, 207Pb/204Pb ratios are 15.565~18,765,208Pb/204Pb ratios are 37.682~69.623, δ34S values of sulfides are -7.2‰~+10.2‰，δ13C values of carbonate rock are -6.7‰~+0.6‰, δ18O values of water are + 6.3‰~+10.5‰, andδD values are -52.8‰~-123.3‰. In the Luojiahe type ore deposits, 206Pb/204Pb ratios are 17.591~19.270 , 207Pb/204 Pb ratios，15.494~15. 684, 208Pb/204Pb ratios are 37.263~39.931，δ34 S values of sulfides are -1‰~+21.9‰，δ13C values of graphite are -35‰~-25‰, δ18O values of water are +3.6‰～+6.4‰, andδD values are -35.8‰~-70‰．In the Hubi type ore deposits, 206Pb/204Pb ratios are 18.097~249.50,207Pb/204Pb ratios are 15.578~44.230,208Pb/204Pb ratios are 35.379~51.480, δ34S values of sulfides are 3.4‰~23.2‰，δ18O values of water are +7.59‰~+12.5‰, and δD values are -36.3‰~-72.2‰. All these data indicate that the Tongkuangyu type ore deposits were formed by magmatism, whereas the Henlinguan type, Luojiahe type and Hubi type ore deposits were formed by metamorphism. |
| keywords:stable isotope copper deposit Zhongtiao Mountain |
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