Abstract
The results of a geochemical study of groundwater in an area of dawsonite mineralization are reported. The studied groundwater has a sodium bicarbonate composition, with pH 7.3-9.2, and a salinity of 0.4-7.2 g/L. The equilibrium conditions in the water with respect to dawsonite, calcite, gibbsite, kaolinite, montmorillonite, quartz, albite, anorthite, and analcime were investigated. A comprehensive consideration of groundwater composition and ore-forming properties of the water-rock system led to the conclusion that dawsonite is a product of aluminosilicate rock weathering. However, this mineral is formed only under conditions of reduced water exchange providing a long-term water-rock interaction and accumulation of sufficient amounts of Na +, OH -, HCO 3 -, CO 3 2-, and Al(OH) 4 -.
Original language | English |
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Title of host publication | Water-Rock Interaction - Proceedings of the 13th International Conference on Water-Rock Interaction, WRI-13 |
Pages | 747-750 |
Number of pages | 4 |
Publication status | Published - 2010 |
Event | 13th International Conference on Water-Rock Interaction, WRI-13 - Guanajuato, Mexico Duration: 16 Aug 2010 → 20 Aug 2010 |
Other
Other | 13th International Conference on Water-Rock Interaction, WRI-13 |
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Country | Mexico |
City | Guanajuato |
Period | 16.8.10 → 20.8.10 |
ASJC Scopus subject areas
- Geology