| 西南天山萨瓦亚尔顿金(锑)矿床成矿时代与赋矿地层时代 |
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| 关键词:Sawayaerdun gold-antimony deposit Rb-Sr isochron age metallogenic epoch ore-bearing strata |
| 基金项目:国家305项目;原地质矿产部定向基金 |
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| Metallogenic Epoch and Ore-bearing Strata Age of the Sawayaerdun Gold-Antimony Deposit in Tianshan Mountains, China |
| Located in the southwestern Tianshan mountains, the Sawayaerdun gold (antimony) deposit is similar to the Muruntau gold deposit of Uzbekstan in metallogenic characteristics. The Rb-Sr isochron age (231±10Ma) of fluid inclusions in quartz from the ores indicates that the metallogenic epoch is Indosinia,consistent with the intracontinental collision stage of the South Tianshan Mountains. According to Rb-Sr isochron age (389±42Ma) of fluid inclusions in quartz from bedding quartz-carbonate veins, the ages of the main ore-bearing strata (2 and 3 sections) are between Silurian and Devonian. However,the two lithologic members above and below the main ore-bearing strata belong to Carboniferous according to fossils. |
| YE Jin-hua,WANG Li-ben,YE Qing-tong,LI Hua-qin,ZHANG Xiao-hua.1999.Metallogenic Epoch and Ore-bearing Strata Age of the Sawayaerdun Gold-Antimony Deposit in Tianshan Mountains, China[J].Acta Geoscientica Sinica,20(3):278-283. |
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