Abstract: Combination characteristics of geochemical elements in the known gold ore field and tin ore field are analyzed by means of C-means which takes the geochemical elements as data objects and the sample analysis results as attribute values. The results indicate that C-means clustering algorithm can discover the combination characteristics of geochemical elements objectively and effectively in the given ore fields. At the same time, the combination characteristics of geochemical elements in a geochemical sampling area which is located in a polymetallic metallogenic belt is analyzed. Based on the analyzing result we can deduce that the geochemical sampling area is a target region which is related with gold, silver and polymetallic resources. 

Key words: Data mining, Fuzzy C-means clustering, Geochemical elements, Combination characteristics of elements