Values (3) Quartz (3) Clay minerals (3) Calcite (3) zone humide (2) puits (2) minéral (2) matériau (2) lignite (2) lac (2) comparaison (2) Comparison (2) Case (2) Area (2) Area (2) Solids (2) Lignite (2) Grammar, Comparative and general--Case (2) Electric conductivity (2) Case (2) végétation (1) élément trace (1) norme (1) limon (1) sable (1) tourbe (1) papier (1) cendre (1) minerai (1) surveillance (1)