Application Of Several Kinds Of Statistical Analysis Methods In The Geochemical Data Processing

"Geochemical principle" and "statistical methods" are considered as the essence of exploration geochemistry. It is easy to test or extend the application of statistical ideas in exploration geochemistry based on the MATLAB platform, by virtue of a series of independent algorithms or program designs. Finally, this paper has availably realized the extraction of metallogenetic information, precision prediction model, and geochemical characteristics in both Tongcun Mo-Cu deposits and Zhexi region.Experimental results have established the Mo's metallogenetic predominance in both orefield and region (Cu next).Simultaneously, the 3E (EEI-EII-ESI) model for assessment of elemental enrichment feature or metallogenic prediction has been set up. Forward considerations, this paper has discussed the numeral characters of some simple fractal models as T1-2, D2-3,Hurst, etc, and delineated the scope of regional anomaly. Forward again, on a basis of the screening model of mixed massing, division rule of the original-overlying massing is proposed, which is a valuable criterion of the elemental geochemical behaviours in this region. Forward still, through lower order statistics, the ordered existences of chemical elements both in different forms and amounts have also been studied, namely the spacial anomaly and variability, then their decomposition modes within various non-scale ranges.Herein, "Forward"stands for a decline of the moment of n-th order.Anyhow, according to the geological setting of Tongcun deposits and Zhexi area, also the knowledge of element geochemistry, according to the integrative and decomposed methods, finally this paper has achieved the quantitative description of elemental enrichment characteristics from various points of view and believes that:1,As to the region, discussing the application of method of undetermined coefficients in delineating geochemical anomalies, and the demarcation rule of original sample and late superimposed one, so do their properties favorable for the concentration and mineralization. Generally, Sn,Mo,Cu and etc dominating in the potential,intensity and scope of metallogenetic anomaly, while V,Pb,Zn,U,Au,W only in some limited regions, performing as the associated elements or some small-scale ores.2,As to the deposit, the reducing of variability Cu>W>Mo may correspond to increasing in turn of the degree of order, others just doing the reverse, within both the non-scale range 1 & 2, where such 2 series of anomaly evolutionary process keeping the same, while the variability sequences separating irregularly. Besides,the axial zoning sequence appears as:Hg-Sb-Zn-Bi-Au-Pb-Ag-U-W-Mo-As-S-Cu-Mn-Sn,it is possible that an independently and Cu-enriching geological process relative to Mo, so this sequence ought to be the the unity of several independent sequences caused by the multistage metallogenesis which maybe characterized by nature of the hydrothermal solution and its invasion place.