| 东天山硫磺山铜多金属矿床成岩成矿作用同位素地质年代学 |
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| 关键词:copper-polymetallic deposit rock-forming and ore-forming eventsisotopic chronology Liuhuangshan East Tianshan Mountains |
| 基金项目:国家重点基础研究发展规划项目(编号:G1999043201和2001CB409810)，国家科技攻关计划“新疆优势矿产资源勘查综合研究”(编号:2001BA609A0718) |
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| Rock-forming and Ore-forming Chronology of the Liuhuangshan Copper-Polymetallic Deposit in East Tianshan Mountains |
| Based on the lead model age and the phenomenon that Cu-Pb-Zn orbodies are controlled by carbonate of the Ordovician Liuhuangshan Group,It was previously considered that the Liuhuangshan Copper-polymetallic deposit was of stratabound type formed in Ordovician. In view of the facts that the quartz porphyry in the orefield has been mineralized and the orebodies show transitional relationship with the porphyry, the authors believe that the deposit should be a porphyry Cu-Pb-Zn polymetallic one. Isotopic chronological studies show that the fluid inclusion Rb-Sr isochron age(346±30 Ma)of mineralized quartz veins is consistent with the zircon U-Pb age(340～360 Ma)of quartz porphyry in test errors,suggesting that the rock-forming and ore-forming events occurred during Early Carboniferous to Late Devonian and the ore-forming process is related to the porphyry in time and space. |
| LI Hua-qin,CHEN Fu-wen.2003.Rock-forming and Ore-forming Chronology of the Liuhuangshan Copper-Polymetallic Deposit in East Tianshan Mountains[J].Acta Geoscientica Sinica,24(6):555-558. |
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