engleski

Ce, La and Y concentrations in agricultural and grazing-land soils of Europe

Ce, La and Y from agricultural (Ap) and grazing land (Gr) soils of Europe have been investigated using new geochemical data produced by the GEMAS (Geochemical mapping of agricultural and grazing land soils) project. Interpolated maps showing Ce, La, and Y distributions in Ap and Gr were generated using ArcView and classified with the concentration — area (CA) fractal method. The median values of the investigated elements show similar concentrations in Ap and Gr soils, while the median values obtained by XRF-total analyses are generally higher than those obtained by aqua regia extraction, ICP-MS (aqua regia). In general, high pH alkaline soils have higher REE concentrations while specific anomalies can often be correlated with known phosphate and REE mineralizations. The GEMAS and the topsoils media from the FOREGS (Forum of European Geological Surveys) Project databases are compared. FOREGS geochemical data shows larger extended anomalies, such as the European wide north–south division, which are difficult to attribute to local processes, while the GEMAS anomalies are spatially more restricted, and can be related to a number of more local factors (e.g., climate, geology, pH, clay content and presence of till).

REEs; GEMAS; FOREGS; Agricultural soli; Grazing land soil; Mineralization

S.I.: Rare earth elements : The role of geology, exploration, and analytical geochemistry in ensuring diverse sources of supply and a globally sustainable resource ; Svi članovi GEMAS tima sudjelovali su u izvođenju EuroGeoSurveys Geochemistry Expert Group projekta „Geochemistry of Agricultural and Grazing Land Soils in Europe“ i u intereptaciji rezultata za pojedinu zemlju. GEMAS Project Team: Albanese, S., Andersson, M., Arnoldussen, A., Baritz, R., Batista, M.J., Bel-lan, A., Birke, M., Cicchella, D., Demetriades, A., Dinelli, E., De Vivo, B., De Vos, W., Duris, M., Dusza-Dobek, A., Eggen, O.A., Eklund, M., Ernsten, V., Filzmoser, P., Finne, T.E., Flight, D., Forrester, S., Fuchs, M., Fugedi, U., Gilucis, A., Gosar, M., Gregorauskiene, V., Gulan, A., Halamić, J., Haslinger, E., Hayoz, P., Hobiger, G., Hoffmann, R., Hoogewerff, J., Hrvatović, H., Husnjak, S., Janik, L., Johnson, C.C., Jordan, G., Kirby, J., Kivisilla, J., Klos, V., Krone, P., Kwecko, P., Kuti, L., ladenberger, A., Lima, A., Locutura, J., Lucivjansky, P., Mackovych, D., Malyuk, B.I., Maquil, R., McLaughlin, M., Meuli, R.G., Miošić, N., Mol, G., Negrel, P., O'Connor, P., Oorts, K., Ottesen, R.T., Pasieczn