陕西青山金矿深部找矿前景评价研究
投稿时间:2009-05-20  修订日期:2009-08-21  点此下载全文
引用本文:周云.陕西青山金矿深部找矿前景评价研究[J].地质与勘探,2009,45(5):493-501
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作者单位
周云 成都理工大学地球科学学院,成都 
基金项目:成都理工大学地质调查项目(编号:HQ0013)资助。
中文摘要:[摘要]在总结陕西青山金矿床产出地质背景、矿床地质特征的基础上,分析和研究了矿区控矿 因素、成矿元素基本分析统计规律、黄铁矿标型特征、成矿流体特征和矿床成矿模式,矿体主要受含矿岩 系、岩相和次级构造的控制,从地表到深部金和铁的品位的变化趋势是越来越高,黄铁矿晶体形态以五 角十二面体和五角十二面体与立方体聚型为主,流体包裹体为单相及气液两相,均一温度、盐度在垂向 上呈正弦波状变化, 建立了青山金矿热泉型成矿模式。由此对青山金矿的深部找矿远景作出了预测, 初步认为青山金矿远景资源量较大,找矿潜力良好。
中文关键词:预测 找矿 青山金矿 陕西
 
The Evaluation of Ore Potential in Depth of Qingshan Gold deposit,Shaanxi Province
Abstract:Abstract:Based on the geological setting of the deposit genesis and the features of Qingshan gold deposit in Shaanxi, we studied the ore-prospecting targets in the deep and peripheral area of Qingshan gold deposit, ore control factors, statistical law of the ore-forming elements爷s basic analysis, typomor鄄 phic features of the pyrite, ore-forming fluids characteristics and the metallogenetic model. The orebody are mainly controlled by ore-bearing rock series, lithofacies and secondary tectonics. The grade of gold and iron is higher from deep to upper level. The crystal form of pyrite is mainly pentagonal dodeca鄄 hedron and its complex with cube. Fluid inclusions occurred in single phase and gas-liquid phase. Homogenization temperatures and salinity changed si鄄 nusoidally. Based on that discussion, the ore-genesis model of hot spring water of Qingshan gold deposit is established. It is suggested that the deep part of Qingshan gold deposit are an important prospective area of locatingr the blind ore body.
keywords:prediction,ore prospecting,Qingshan gold deposit,Shanxi province
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