Using regional geochemical exploration data, the authors figured out moving window contrast values through window moving average operation,delineated single-element anomalies and multi-element accumulative (multiplicative) anomalies according to contrast values,and drew single element and multi-element background diagrams,accumulative (multiplicative) multi-element contrast anomalies and background diagrams,which make up the locating prognostic chart for the ore-prospecting target. The effects of its application in Xinjiang and a certain ore belt in Qinba area are described in this paper.
杜佩轩. EGMA系统及其应用效果——找矿靶区的定位预测[J]. 物探与化探, 1998, 22(5): 371-378.
Du Peixuan . EGMA SYSTEM AND ITS APPLYING EFFECTS:THE LOCATING PROGNOSIS OF ORE-PROSPECTING TARGETS. Geophysical and Geochemical Exploration, 1998, 22(5): 371-378.