首页> 中文期刊> 《安徽地质》 >安徽池州杨北寨铜矿与铜山铜矿等矿床的比较研究

安徽池州杨北寨铜矿与铜山铜矿等矿床的比较研究

         

摘要

杨北寨铜矿、施村金矿位于湖区,可利用的工作方法手段有限,找矿难度大。通过将以往所取得的两矿区片段地质资料的结合,在区域地质背景分析和与相邻的铜山铜矿成矿地质条件对比研究的基础上,明确找矿思路,进行预测定位,并经有效可行的物探方法再对比论证,优化设计方案。施工首孔于相应的设计部位打穿五通组顶板,各预测主要见矿部位均见矿体;其后的验证又获得很多重要发现:深部发现花岗闪长斑岩岩体、斑岩型钼矿化及赋存于不同部位的铜多金属矿化。经再次与相邻矿集区铜陵狮子山等矿田对比研究,认为杨北寨矿区具“多位一体”矿化特征,找矿潜力大,提出新的找矿思路,进行了新的预测定位;同时对池州其他地区的找矿也提出设想。%The Yangbeizhai copper deposit and the Shicun gold deposit are situated in lake areas, in which ore prospecting is difficult for the limit of available work means and method. By combining some geological data obtained previously in pieces of the two ore districts, and analysis of regional geological setting and comparison with the neighboring Tongshan copper deposit in geological conditions, we have got a definite train of thought for ore prospecting, then make positioning prognosis, and optimize the design through contrast analysis using workable geophysical survey methods. The first borehole at designed place penetrated the ceiling of the Wutong Formation and intersected ore bodies at major prognostic places. Later test brought more important findings:granodiorite porphysy rock mass, porphyry molybdenum mineralization, and copper polymetallic mineralization hosted in different places are discovered in depth. After another comparison with the Shizishan ore field and others in the adjacent mining camp, it is suggested that the Yangbeizhai ore district has the “all in one”mineralizaton feature with great potential for ore prospecting.

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