化探在福建北部1∶5万区域矿产远景调查中的找矿效果及应用前景  

Application of Geochemical Exploration to the Survey of Regional Mineral Resources at Scale 1∶50000 in Northern Fujian Province and Iits Exploration Potential

作　　者：刘乃忠[1,2] 陈郑辉[3,4] 

机构地区：[1]中国地质大学(武汉),湖北武汉430074 [2]福建省地质调查研究院,福建福州350013 [3]中国地质大学(北京),北京100083 [4]中国地质科学院矿产资源研究所,北京100037

出　　处：《地质与勘探》2011年第3期414-422,共9页Geology and Exploration

基　　金：中国地质调查局大调查项目"福建建瓯-南平地区矿产远景调查"(1212010881402);"全国重要矿产和区域成矿规律研究"(1212010733803)联合资助

摘　　要：根据福建省北部井后、上房等新发现的钼、钨、金矿产的地球化学异常特征,阐述区域矿产远景调查的异常评价,评价步骤为1∶5万水系沉积物测量→1∶1万土壤测量→地质观察→地表揭露→深部钻探验证。研究认为,次生晕异常特征可反映矿床原生地球化学异常的组份分带,可用原生晕分带理论判断异常的含矿性与否,进而选择有较强针对性的指示元素,开展下一步化探工作,以最经济成本达到最好的异常评价效果。Based on the geochemical anomaly features of Mo, W and Au newly found in the Jinghou and Shangfang areas of northern Fujian Province, we made an assessment of mineral resource prospect for this region. The evaluation steps include water sediment measurements at 1：50000 scale, soil ts at 1：10000 scale, geological observations, surface exposure, and deep drilling validation. The study shows that the features of the secondary haloes indicate the composition zoning of original geochemical anomalies of ore deposits. Based on the theory of original halo zoning, it was determined whether these anomalies arc associated with ores contained. Then the indicative elements that are well focused the target were chosen for further geochemical survey. The purpose was to attain the best anomaly assessment by the minimum economic cost.

关 键 词：1∶5万化探 井后 上房 找矿效果 应用前景 

分 类 号：P618[天文地球—矿床学]