EM聚类方法在岩性复杂区水系沉积物地球化学异常圈定中的应用
孙尧尧, 郝立波, 赵新运, 陆继龙, 马成有, 魏俏巧

The application of EM clustering method to the determination of stream sediment geochemical anomalies in areas with variable lithologies
SUN Yao-Yao, HAO Li-Bo, ZHAO Xin-Yun, LU Ji-Long, MA Cheng-You, WEI Qiao-Qiao
图6 传统方法(左侧)与EM方法(右侧)圈定的W、Sn地球化学异常
Fig.6 Geochemical anomalies of W and Sn delineated by traditional method(left) and the EM method(right)