2623 Geochemical mapping is one of the main activities performed in national geological surveys and organizations. Following the recommendations in the Final Report of Project 259 for the International and National Geochemical Programs (Darlney et al., 1995), the Geological Survey of Spain achieved the Geochemical Mapping of Spain (Locutura et al., 2012). The main results accomplished with the data of the regional soil survey in the Iberian Pyrite Belt are presented below. Figure 1 - Critical and Strategic raw materials for UE The study zone corresponds to the Spanish part of IPB that covers an area of about 3.000 km2 in Huelva and Seville provinces. The Iberian Pyrite Belt (IPB) is a well-known area for its exceptional relevance and abundance of mineral deposits, extending around 230 km long and 40 km wide from Seville (Spain) to Lisbon (Portugal) (Quesada, 1996; Tornos, 2006). It is one of the most significant accumulations of metals contained in volcanogenic massive sulfide (VMS) deposits worldwide (Almodóvar et al., 2019; Leistel et al., 1997) with more than 80 known deposits containing > 1700 Mt of sulfide ore (mined and reserves), and several tens of Mn occurrences (Fig. 2). STRATEGIC RAW MATERIALS CRITICAL RAW MATERIALS
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