| 新疆可可塔勒铅锌矿床同位素地球化学研究 |
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| 引用本文： | 周刚,韩东南.新疆可可塔勒铅锌矿床同位素地球化学研究[J].矿产与地质,1998,12(1):33-38. |
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| 作者姓名： | 周刚 韩东南 |
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| 作者单位： | 中国有色金属工业总公司北京矿产地质研究所 |
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| 摘 要： | 同位素资料表明，可可塔勒铅锌矿床成矿时代为早泥盆世，与下泥盆统海相火山岩系年代一致；矿石铅主要来自于活动造山带，与弧盆系火山岩有关，属幔壳混合铅；矿石的硫源与赋矿围岩或后期脉状矿石的硫源存在明显的差异，前者属细菌成因硫和海水硫酸盐还原硫的混合，后者属深部火山硫或岩浆硫；主成矿期的成矿介质水主要是海水，可能有少量大气降水加入，后期矿化则以混合岩浆水为主。矿床形成属海底火山喷气－沉积迭加改造型矿床。
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| 关 键 词： | 铅锌矿床，同位素地球化学，可可塔勒，新疆 |
STUDY OF ISOTOPE GEOCHEMISTRY ON THE KEKETALE LEAD ZINC DEPOSIT,XINJIANG |
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| Zhou Gang,Han Dongnan,Deng Jiniu.STUDY OF ISOTOPE GEOCHEMISTRY ON THE KEKETALE LEAD ZINC DEPOSIT,XINJIANG[J].Mineral Resources and Geology,1998,12(1):33-38. |
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| Authors: | Zhou Gang Han Dongnan Deng Jiniu |
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| Abstract: | It is shown through isotopic data that the lead Zinc Deposit of Keketale in Xinjiang was formed in Lower Devonian in coincidence with the time of host rock.The origin of ore lead belongs to the mantle upper crust mixture type derived mainly from active orogenic belt and related to volcanic rocks of arc basin series.There is an obvious discrepancy between the sulfur of ore and the sulfur of hostrock or that of the veined ores formed in the late superimposed stage,the former belonging to the reduced sulfur from sea water sulfates and bacteria,the latter being the sulfer from deep volcano or the magma.The water of ore forming fluid came mainly from sea water possibly mixed with some meteoric water,but the water in the late superimposed mineralization is mainly mixed magmatic water.It is believed that the deposit belongs to the type of submarine volcanic exhalation sedimentation superimposition. |
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| Keywords: | Lead zinc deposit Isotope geochemistry Keketale Xinjiang |
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