| 新疆萨瓦亚尔顿金锑矿床成矿作用同位素地质年代学 |
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| 关键词:gold-antimony deposit isotopic geochronology for mineralization Sawayaerdun China-Kirghiz border area |
| 基金项目:国家重点基础研究发展规划项目(编号:2001CB409810和G1999043201)，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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| Metallogenic Chronology of the Sawayaerdun Gold-Antimony Deposit in Xinjiang |
| The ore-forming ages and phases of the Sawayaerdun gold-antimony deposit constitute a problem of long controversy. Isotopic geochronological study of the ore-forming process shows that fluid inclusion Rb-Sr isochron ages for gold- and polymetallic sulfides-bearing quartz veins and gold-bearing quartz veins with small quantities of sulfides are 342±27 Ma and 246±16 Ma,respectively,which indicate that mineralization of gold in this orefield experienced at least two epochs,namely Carboniferous and Late Permian-Early Triassic. The single zircon U-Pb age of 133.7～131.0 Ma for monzonite-porphyry in the orefield implies that the magma was intruded after the ore-forming process in Late Jurassic to Early Cretaceous. |
| CHEN Fu-wen,LI Hua-qin.2003.Metallogenic Chronology of the Sawayaerdun Gold-Antimony Deposit in Xinjiang[J].Acta Geoscientica Sinica,24(6):563-567. |
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