| 东天山康古尔塔格金矿带年代学研究 |
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| 引用本文： | 姬金生 杨建国. 东天山康古尔塔格金矿带年代学研究[J]. 地质科学, 1996, 31(1): 80-89 |
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| 作者姓名： | 姬金生 杨建国 |
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| 作者单位： | 1. 西安地质学院地质系 西安 710054;2. 地质矿产部西安地质矿产研究所 西安 710054 |
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| 基金项目： | 国家305重点科技攻关项目 |
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| 摘 要： | 康古尔塔格金矿带分布于东天山石炭系中、下统火山岩区,近年来发现了浅成低温热液型、韧性剪切带型和石英脉型3种成因类型的金矿。经Rb-Sr等时线法、U-Ph法、40Ar/39Ar法等地质年代学研究,认为容矿岩石火山岩的年龄为300-280Ma;矿化发生在海西晚期到印支早期(270-220Ma),经历了多期次的成矿作用;各矿区的花岗质侵入岩与成矿有一定的时空关系。
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| 关 键 词： | 金矿床 火山岩 同位素年代学 新疆康古尔 |
| 收稿时间： | 1994-04-21 |
| 修稿时间： | 1994-04-21; |
CHRONOLOGY STUDY OF KANGGULTAGE GOLD METALLOGENIC BELT, EAST TIANSHAN |
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| Ji Jinsheng, Zhang Lianchang, Zeng Zhangren Lu Dengrong, Yang Xingke. CHRONOLOGY STUDY OF KANGGULTAGE GOLD METALLOGENIC BELT, EAST TIANSHAN[J]. Chinese Journal of Geology, 1996, 31(1): 80-89 |
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| Authors: | Ji Jinsheng Zhang Lianchang Zeng Zhangren Lu Dengrong Yang Xingke |
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| Affiliation: | 1. XI’an Collage and Mineral Resource Xi’an 710054;2. Institute of Geology and Mineral Resouce Xi’an 710054 |
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| Abstract: | he Kanggultage gold metallogenic belt is located in east Tianshan volcanic rock distrct of Early-middle Carboniferous. The gold deposits of epithermaltype,dutile shear zone-type and quartz vein were found in the belt, for example,Xitan, Kanggul, Xifengshan etc.In Xitan gold deposit, it is indicated that the Rb-Sr isochron age of host volcanic rock is 290 Ma, while the age of mineralization is 276-244 Ma. There are similar (87Sr/86Sr)i (0.7059-0. 7044) between the host rock and ore. Xitan gold deposit is of epithermal type.Using the methods of Rb-Sr isochron age, 40Ar/39Ar age spectrum and U-Ph age for Kanggul gold deposit, it is showed that the age if host volcanic rock is 300-280 Ma, while the age of mineralization is 267-220 Ma. There are smillar (87Sr/86Sr),(0. 7125-0. 7079)between the host rock and ore.Kanggul gold deposit is controlled by ductile shear zone.Based on chronology study of Kanggultage gold metallogenic belt, the age of host volcanic rock is 300-280Ma,the time of mineralization is late Variscan early Indo-Chinese epoch(270-220 Ma),in which multi-stage mineralization took place. There are time-space relationships between the granitoid intrusion and gold mineralization. |
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| Keywords: | Gold deposit Volcanic rock Isotope chronology Kanggul of Xinjiang |
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