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Advanced mathematical theories like fuzzy set theory play an increasingly important role in exploration and assessment of mineral deposit. A method based on this theory, Fuzzy C-means Clustering, is presented to determine the background of the elements. In the following research, Fuzzy C-means Clustering (FCMC) method is applied to quantify the lithological background in Khouni Mountain, Central Iran. By applying this method, 254 stream sediment samples classified into 4 clusters according to the membership degree...

Multivariate statistics analysis is one of the base stages in geochemical data processing. In this branch of mathematics, “Hierarchical Clustering Analysis” applied to identify the relations between the variables such as elements and samples. Hence, different types of mineralization would define. However, any missing or errors in entrance the data make a wrong or not clear result. Sometimes misinformation or data errors appear because of analytical errors, missing some information, or problems in sam pling or ...

Geochemical prospecting is one of the most useful methods in mining deposits exploration. For most of minerals and elements, geochemical data are reliable and helpful. As these methods are not expensive we can use theme in large scale. But non of these methods ( based on sampling from rocks, stream sedimentary, soil, water etc.) are complete and need complementary methods such as heavy mineral study, geophysics, remote sensing etc. Heavy mineral study is one of the best complementary methods. Based on this method ...

Multivariate analysis is one of the base stage in heavy geochemical prospecting (heavy mineral study). Factor and clustering analysis identify different type of mineralization and the relation between minerals in studied area. But in these methods for each mineral it is necessary to be at least 10 valid samples. Therefore some minerals can’t be analyzed by such methods and we miss some minerals in multivariate analysis and can’t identify the relation between these minerals and others. Jaccard coefficient can b...