壤中汞气测量在于都营脑隐伏矿产勘查中的应用  

The application of soil mercury survey method to the exploration of concealed mineral resources in Yinnao,Yudu area

作　　者：李伟[1] 刘翠辉 贺根文 温珍连 陈琪[1] 

机构地区：[1]江西省地矿局赣南地质调查大队,江西赣州341000

出　　处：《物探与化探》2017年第5期840-845,共6页Geophysical and Geochemical Exploration

基　　金：中国地质调查局地质调查项目"江西于都银坑-宁都青塘金银多金属矿整装勘查区关键基础地质研究"(12120114034801)和"江西于都银坑-宁都青塘地区金银多金属矿整装勘查区矿产调查与找矿预测"(121201004000150017-14)

摘　　要：营脑矿区位于南岭银坑贵多金属矿田西部,以破碎蚀变岩型银多金属矿产为主。该区壤中汞气异常明显,最大含量为5 200.0 ng/m^3,峰背比最高达60.4。汞气异常形态与区内NE向控矿破碎带分布基本一致,对含矿破碎带表现出异常叠加的特征。以汞气异常为依据,结合研究区成矿地质条件,综合圈定出3个找矿远景区,并认为Ⅲ远景区找矿潜力最大。The Yinnao deposit is located in the west of the Yinkeng Au-Ag polymetallic orefield. The main mineral type is altered rock type in the fracture zone. According to the results of the soil mercury gas survey, the study area shows a significant anomaly with the maximum content of 5 200.00 ng./m3 and the largest peak/background ratio is 13.4. The anomaly shape is consistent to the NE-trending ore-controlling structure, and shows a anomaly superposition feature. Combining the distribution of mercury anomalies with ore-forming geological conditions, the authors delineated three metallogenic prospective areas, with the Ⅲ prospective area exhibiting the greatest prospecting potential.

关 键 词：汞气异常 次生晕 隐伏矿体 找矿远景区 银坑矿田 

分 类 号：P632[天文地球—地质矿产勘探]