安徽新屯仓地区土壤地球化学特征及找矿潜力

Soil geochemical characteristics and metallogenic potential in Xintuncang area,Anhui

安徽新屯仓地区位于张八岭隆起东缘,为明确找矿潜力,对研究区进行1∶5万土壤地球化学测量。根据区内1∶5万土壤地球化学测量数据,分析研究了12种元素的地球化学特征,发现Au、Pb元素有局部富集成矿的可能性;总结了各元素分布规律,发现研究区内Cu、Cr、Ni、Co 4种元素的分布规律非常相似,4种元素的地球化学图对区域地层划分具有重要的参考价值;圈定了综合异常16处,对主要异常进行了成矿潜力评价。综合分析后认为AP5异常具有寻找矽卡岩型铜(金)矿体的潜力,AP10异常具有寻找低温热液型铅锌矿的潜力,AP12、AP14异常具有一定的找矿潜力,二者均需要开展进一步的异常查证工作。

Xintuncang area is located in the eastern margin of the Zhangbaling uplift,in order to provide metallogenic potential,the 1∶50000 soil geochemical survey has been undertaken in the study area.On the basis of 1∶50000 soil geochemical data,the geochemical characteristics of 12 elements have been studied,it is found that the Au and Pb elements have the possibility of local enrichment mineralization.The distribution law of 12 elements have been summarized,it is found that the distribution law of Cu,Cr,Ni and Co is very similar in the study area,the geochemical maps of the four elements have important reference value for regional stratigraphic division.Sixteen comprehensive anomalies are delineated and the metallogenic potential of the main comprehensive anomalies is evaluated.It can be found that AP5 comprehensive anomaly has potential for skarn-type Cu-Au mineralization and AP10 comprehensive anomaly has potential for low-temperature hydrothermal Pb-Zn mineralization,the comprehensive anomalies of AP12 and AP14 have certain prospecting potential,and both of them need to carry out the further abnomal verification work.