fleuve (1) substitution (1) métal (1) lac (1) enrichissement (1) distribution (1) faille (1) Area (1) Specimens (1) Hydrothermal alteration (1) Area (1) Units of measurement (1) Quartz (1) Process (Law) (1) Gold (1) Geology, Stratigraphic--Archaean (1) Example (1) Crystallization (1) Carbonates (1) Albite (1) Location (1) or (1) dépôt (1) ceinture (1)