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Geochemical atlas of the Republic of Croatia

Regional geochemical mapping is being carried out as part of the national project “ The basic geochemical map of the Republic of Croatia” . The current investigations, were based on the analyses of content and areal distribution of chemical elements in the topsoil (0-25 cm). The sampling of the entire area of the Republic of Croatia was conducted in a regular grid of 5x5 km (1 sample per 25 km2) with 2778 samples collected throughout the country. Regarding detection limits, accuracy and precision, 25 elements (Al, Ca, Fe, K, Mg, Na, P, Ti, As, Ba, Cd, Co, Cr, Cu, La, Mn, Ni, Pb, Sc, Sr, Th, V, Y, Zn, Zr) were presented on single-element geochemical maps. The maps were produced using ESRI® ; ArcGIS™ 9.2 software, Geostatistical Analyst extension. Data was classified into 8 classes according to the values of the 5th, 10th, 25th, 50th, 75th , 90th and 98th percentile of the probability distribution of each element including their minimum and maximum values. The method of deterministic spatial interpolator Inverse Distance Weighting (IDW) was used to generate the filled contours of the single-element maps.

Geochemistry ; Geochemical Mapping ; Soils ; Croatia

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