大坞尖北段土壤地球化学特征及找矿意义

通过在安徽省宁国市大坞尖北段开展1〖DK（〗∶〖DK）〗10 000土壤地球化学测量，对数据进行分析，研究区内不同元素的地球化学异常特征。利用软件成图区分对主次成矿元素，根据不同元素的地球化学性质，采用因子分析法确定元素在空间上的异常组合，元素组合中不同元素之间的异常在空间上会出现叠加的现象。结合区域地层、岩浆岩、构造等地质特征，根据不同的元素在空间上的异常叠加状况划分成矿远景区，经解释分析，研究区内共圈定出6处异常区，具有较好的找矿前景。

Soil Geochemical Characteristics and Prospecting Significance of the North Region of Dawujian

The 1∶10 000 soil geochemical survey is conducted in the north region of Dawujian in Ningguo city,Anhui province,the measurement datas are analyzed to do research on the geochemical anomalous characteristics of different elements in the research region.The primary and secondary ore-forming elemenets are distinguished by using the mapping sofware.According to the geochemical characteristics of the different elements,the factor analysis method is adopted to identify the element anomaly combinations, the superposition phenomenons of the element anomaly combinations of different elements appear in space.Combined with the geological characteristics of regional strata,magmatic,rocks and structures,the mineral prospecting areas are divided in accordance with the superposition phenomenous of different elements appeared in space.Besices that,the mineral prospecting areas are interpreted and analyzed,so the six anomaly area in the research area are obtained.The research results in this paper indicated,the ore prospects of the research area is good.