山东招远灵雀山金矿床铅、硫同位素地球化学特征

Lead and sulfur isotope geochemical characteristics of the Lingqueshsn gold deposit in Zhaoyuan,Shangdong Province

研究表明灵雀山金矿硫同位素组成为：δ^34S值为6．6‰～10．4‰，平均值为7．9‰。矿石铅同住素组成为：206Pb／204Pb为17．114～17．774，平均17．467；207Pb／204Pb为15．451～15．566，平均15．508；208Pb／204Pb为36．917～38．737，平均37．870。与其赋矿围岩的同位素组成不同。这说明该矿床的成矿物质可能部分来自幔源，具有与招掖金矿带其它金矿类似的特征。

Sulfur isotope analyses show that δ34S values of pyrites vary in the range of 6.6‰-10. 40‰, with an average of 7.9‰. Pb isotope analyses show that 206Pb/204pb, 2207Pb/204pb and 2208Pb/204pb rations of the ore lend are 17.114-17. 774, 15.451- 15. 566,36. 917-38. 737, and with an average of 17. 467, 15. 508 and 37. 870 respectively, which are significantly different from the data of granites. The research results show that ore-forming materials of the Lingqueshan gold Deposit might have partly derived from the mantle, and the geochemial characteristics are similar to the Zhao-Ye gold zone one.