1:5万岩石构造地球化学测量在粤北一六矿田中的应用
吴卫国

The application of 1:50 000 rock structure geochemical survey in the Yiliu orefield of northern Guangdong Province
Wei-Guo WU
图3 粤北地区元素衬值累加、累乘比值等值线