Geochemical Characteristics and Preliminary Assessment of Geochemical Threshold Values of Technology-Critical Elements in Soils Developed on Different Geological Substrata Along the Sava River Headwaters (Slovenia, Croatia) (CROSBI ID 290221)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lučić, Mavro ; Vdović, Neda ; Bačić, Niko ; Mikac, Nevenka
engleski
Geochemical Characteristics and Preliminary Assessment of Geochemical Threshold Values of Technology-Critical Elements in Soils Developed on Different Geological Substrata Along the Sava River Headwaters (Slovenia, Croatia)
The increased demand for technology-critical elements (TCEs) in emerging technologies brings about the need to determine their spatial distribution in the environment and establish regulatory guidelines. In this paper, concentrations of Li, Sc, Nb, W, Ga, Ge, and REY (rare earth elements, including yttrium) in soils collected from different parent materials in the upper catchment of the Sava River (Slovenia, Croatia) were analysed. Results of multivariate (principal component analysis) and univariate (threshold methods) statistical techniques were used to determine geochemical characteristics of studied soils to identify the background variations and to establish geochemical threshold values. The investigated area is characterized by great lithological diversity and substantial variation of TCE concentrations. Among methods for assessment of geochemical threshold, the TIF (Tukey inner fence) and 97.5th percentile delivered the most reasonable results. Some exceedances above the 97.5th percentile were natural in origin, caused by local geology. These findings can provide baseline data because little is known about TCE variation on different geological substrata.
technology-critical elements ; soil geochemistry ; geochemical threshold ; the Sava River
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Podaci o izdanju
81
2021.
541-552
objavljeno
0090-4341
1432-0703
10.1007/s00244-020-00781-4
Povezanost rada
Geologija, Interdisciplinarne prirodne znanosti