| 北祁连山石居里沟富铜矿床成矿特征 |
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| 引用本文： | 杨合群,李文渊.北祁连山石居里沟富铜矿床成矿特征[J].地质与勘探,2000,36(6):20-22,31. |
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| 作者姓名： | 杨合群 李文渊 |
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| 作者单位： | 中国地质调查局西安地质矿产研究所,西安,710054 |
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| 摘 要： | 讨论北祁连山石居里沟富铜矿床成矿特征，通过分析认为：成矿环境为中奥陶世弧后扩张脊，容矿岩石为蛇绿岩套上部火山岩或火山－沉积岩系，矿体赋存部位受海底裂隙系统的控制，含矿热液起源于海水与玄武岩在高温下的反应，成矿金属元素主要来自火山岩，矿化剂硫来自二者。
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| 关 键 词： | 铜矿床 成矿特征 成矿环境 矿床地质 成矿物质 |
METALLOGENIC FEATURE OF SHIJULIGOU COPPER-RICH ORE DEPOSITS IN NORTHERN QILIAN MOUNTAINS |
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| YANG He-qun,LI Wen-yuan,ZHAO Dong-hong,SONG Zhong-bao.METALLOGENIC FEATURE OF SHIJULIGOU COPPER-RICH ORE DEPOSITS IN NORTHERN QILIAN MOUNTAINS[J].Geology and Prospecting,2000,36(6):20-22,31. |
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| Authors: | YANG He-qun LI Wen-yuan ZHAO Dong-hong SONG Zhong-bao |
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| Abstract: | Discusses metallogenic feature of Shijuligou copper-rich ore deposits in Northern Qilian Mountains. The main conclusions are as follows: The metallogemic setting was back-arc spreading ridge in Meso-Ordovician Epoch; The host rock belongs to volcanic rocks or volcanic-sedimentary rocks in the upper part of ophiolite suite; The location of ore bodies were controled by the system of fissures in the sea floor; The hydrothermal ore-forming solution originated from reaction between sea-water and basaltic rocks under high temperature, in which, the ore-forming metal elements came from the basaltic rocks and the mineralizer sulfur from both the former and the latter. |
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| Keywords: | Northern Qilian Mountains Shijuligou back-arc spresding ridge copper ore |
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