كاربرد روش خوشه بندي فازي در خنثي سازي اثر سنژنتيك داده هاي ژئوشيميايي رسوبات آبراهه اي در منطقه طارم

Applying the fuzzy C-means clustering method to remove the effect of the geochemical stream sediment syngenetic components in Tarom area

Geochemical exploration, using the stream sediment method, involves two components that control the concentration of elements in the samples: syngenetic and epigenetic. The epigenetic component is useful factor for exploration goals. However, usually as the syngenetic component is stronger, it dwarfs the effect of epigenetic component. There are several methods used to eliminate the effect of syngenetic component on geochemical data processing; such as, separation of upstream rock groups, principal component analysis (PCA) and fuzzy c-means clustering method (FCM). The effect of the syngenetic component, from stream sediment samples obtained from Yamaghan, was removed using the both separation of upstream rock groups and fuzzy clustering method. Then results from this method were compared to the results from the separation of the upstream rock groups method. Based on the following research, Fuzzy coefficient is calculated to be 1.4 and the number of clustering is equal to 2 in the selected C-means method. New anomalies have been recognized that they have not been mentioned based on the separation of upstream rock group method. In the