湖南省九龙山铅锌矿物化探异常综合分析与找矿前景

为进一步摸清九龙山地区区域化探异常与铅锌矿化之间的因果关系、成矿规律和控矿因素,投入1∶1万地质调查、土壤地球化学测量、岩石地球化学测量和激发极化法测量工作,通过综合分析,发现区内4个激电异常区与土壤异常形态相似,平面位置基本重叠吻合,且反映强烈。利用浅表槽探工程在异常中心处揭露到铅锌矿脉,长约760 m,平均厚度为1.40 m,铅平均含量为3.03%,锌平均含量为2.78%,说明九龙山勘查区成矿条件良好,矿产富集,未来深部找矿工作潜力较大。

A comprehensive analysis of lead-zinc geophysical and geochemical anomalies and ore-search prospect in the Jiulong Mountain,Hunan Province

In order to get to know the relationship between regional lead-zinc geochemical anomalies and mineralization, metallogenic regularity and ore-forming factors, the authors carried out 1∶10 000 geological survey, soil-rock geochemical measurement and IP survey. Based on comprehensive study, it is found that four geophysical IP anomalies are similar to geochemical soil anomalies in shape and geographical position and both have strong reflection. With the length of 760 m,average thickness of 1.40 m, 3.03% lead and 2.78% zinc, an ore-bearing vein was detected by shallow trenching at the center of the anomaly, which shows good metallogenic conditions, rich minerals and great potential of deep prospecting in Jiulongshan survey area.