| 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,(6):20- |
| 北祁连山石居里沟富铜矿床成矿特征 |
| METALLOGENIC FEATURE OF SHIJULIGOU COPPER-RICH ORE DEPOSITS IN NORTHERN QILIAN MOUNTAINS |
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| DOI： |
| 中文关键词: 铜矿床 成矿特征 成矿环境 矿床地质 成矿物质 |
| 英文关键词: Northern Qilian Mountains,Shijuligou, back-arc spresding ridge, copper ore |
| 基金项目: |
| 杨合群 李文渊 |
| 中国地质调查局西安地质矿产研究所,西安 |
| 摘要点击次数: 2005 |
| 全文下载次数: 1060 |
| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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