The possibilities of identification and interpretation of the simple structure of geochemical factors by the biplot method
Yu. Tyutyunnik, O. Shabatura and J. Daunis-i-Estadella
Event name: 17th International Conference on Geoinformatics - Theoretical and Applied Aspects
Session: Mathematical Methods and Computer Technologies in Geophysics and Geology
Publication date: 14 May 2018
Info: Extended abstract, PDF ( 634.4Kb )
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CoDa is vector product of the all measured values. Geostatistical model biplot of CoDa is a hyperspace of l factors and reasons with dimension that corresponding to the amount determined poinrs. Projection of hyperspace on the plane with "star" biplot especially together with projection of points able to demonstrate the probabilities of indicators of action of various factors and causes. Average concentrations of chemical elements in the soil depends on the action of natural and techogenic factors and are characterized by different regularities of migration and accumulation in the lateral and radial directions. Study of concentrations of chemical elements in soils of different elementary geochemical landscapes possible to identify some of the important statistically significant regularities of distribution of chemical elements in the territory of Irpin-Bucha-Vorzel of Kyiv suburban area. The analysis of 190 samples formed the basis of compositional data (CoDa). Established that the geostatistical parameters obtained by modeling SoDa in La-Ce-Nd 12-dimensional hyperspaces mark an area of geochemical factor "influence of initial mineral composition of rocks"; beam of Rb-Sr-Ba is linked to the 'acid-alkaline conditions in soils'; manganese (Mn) - the oxidation-reduction conditions; lead (Pb) - ''man-made impact' associated with vehicle emissions; Zn-Cu - "biogenic processes".