| 1 | Pirajno, F., 1992. Hydrothermal mineral deposits, prenciples and fundamental concepts for the exploration geolologist, Springer-Verlag, p.709, Heidelbeg. |
| 2 | Barnes, H.L., 1979, Geochemistry of hydrothermal ore deposits, John Wiley & Sons Inc., 798 p., New York. |