Institut Cartogràfic i Geològic de Catalunya

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System of symbols that indicates the tendency of ions to concentrate in the core, mantle, igneous rocks, ocean floors, seawater, river waters, sediments, soils, the atmosphere and different types of nutrients

Example of geophysical information synthesis: Conca del Vallès (central sector) (Download PDF, Catalan)

Figure 1. 1:25,000 Soil map in a Geographic Information System.