RT Journal Article T1 Biogeochemical prospecting of metallic critical raw materials: soil to plant transfer in SW Ciudad Real Province, Spain A1 Barquero Peralbo, Jose Ignacio A1 Lorenzo Álvarez, Saturnino A1 Rivera Jurado, Sofía A1 González Valoys, Ana A1 García Ordiales, Efrén A1 Esbrí Víctor, José María A1 Higueras, Pablo AB The soil–plant transfer of trace elements is a complex system in which many factors are involved such as the availability and bioavailability of elements in the soil, climate, pedological parameters, and the essential or toxic character of the elements. The present study proposes the evaluation of the use of multielement contents in vascular plants for prospecting ore deposits of trace elements of strategic interest for Europe. To accomplish this general goal, a study of the soil–plant transfer of major and trace elements using Quercus ilex as a study plant has been developed in the context of two geological domains with very different characteristics in geological terms and in the presence of ore deposits: the Almadén syncline for Hg and the Guadalmez syncline for Sb. The results have made it possible to differentiate geological domains not only in terms of individual elements, but also as a combination of major and trace elements using Factor Analysis. The bioconcentration factors have demonstrated the uptake of macronutrients and micronutrients in very high concentrations but these were barely dependent, or even independent of the concentrations in the soil, in addition to high values of this factor for Sb. The Factor Analysis allowed for the differentiation of geogenic elements from other linked to stibnite ore deposits (Sb, S, and Cu). This element (Sb) can be uptake by Quercus ilex via the root and from there translocating it to the leaves, showing a direct relation between concentrations in soil and plants. This finding opens the possibility of using Quercus ilex leaves for biogeochemical prospecting of geological domains or lithological types of interest to prospect for Sb deposits. PB Springer SN 0944-1344 YR 2024 FD 2024-04-06 LK https://hdl.handle.net/20.500.14352/103723 UL https://hdl.handle.net/20.500.14352/103723 LA eng NO CRUE-CSIC NO ERA-MIN2 478 European Project NO Junta de Comunidades de Castilla-La Mancha DS Docta Complutense RD 9 abr 2025