| 中条山铜矿床同位素地球化学研究 |
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| 关键词:stable isotope copper deposit Zhongtiao Mountain |
| 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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| Isotope Geochemistry of Copper Deposits in the Zhongtiao Mountain |
| 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. |
| XU Wenxin,WANG Liming,Li Heng,GUO Xinsheng.2005.Isotope Geochemistry of Copper Deposits in the Zhongtiao Mountain[J].Acta Geoscientica Sinica,26(z1):130-133. |
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