Monitoring geochemistry of the evolution of natural system: salar de Huasco (Chile)
Evaporation process affecting brines in salar of Huasco (Chile) has been reproduced at laboratory scale with the main objective of studying its geochemical evolving path. Natural brines have been evaporated under isothermal conditions, precipitating progressively calcite, gypsum, thenardite, and ha...
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| Format: | Article |
| Language: | English |
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Universidad de Antioquia
2013-03-01
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| Series: | Revista Facultad de Ingeniería Universidad de Antioquia |
| Subjects: | |
| Online Access: | https://revistas.udea.edu.co/index.php/ingenieria/article/view/14809 |
| _version_ | 1827981277712613376 |
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| author | Ingrid Garcés Millas Pedro López Julián |
| author_facet | Ingrid Garcés Millas Pedro López Julián |
| author_sort | Ingrid Garcés Millas |
| collection | DOAJ |
| description |
Evaporation process affecting brines in salar of Huasco (Chile) has been reproduced at laboratory scale with the main objective of studying its geochemical evolving path. Natural brines have been evaporated under isothermal conditions, precipitating progressively calcite, gypsum, thenardite, and halite. This mineral sequence confirms the evolution of equilibrium conditions calculated by means of PHRQPITZ geochemical code.
Geochemical modeling has allowed to determine that saline minerals reach saturation along the experiment performed at different evolutive moments that they do in natural conditions. This fact is due to two main causes, first to the interaction between dilute solutions entering salar with the external saline rim mainly composed of gypsum, whose solubilization causes that brines reach faster saturation respect to gypsum in the natural system compared to experiments in laboratory; and second, to precipitation of mirabilite as consequence of thermal oscillations to daily scale causing that halite equilibrium is reached for higher brine concentrations in salar that in laboratory, since mirabilite precipitation produces a significant depletion of sodium concentration in brines.
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| first_indexed | 2024-04-09T22:06:57Z |
| format | Article |
| id | doaj.art-2fefc9b5f1cd4fae8fa0e36f7fde678c |
| institution | Directory Open Access Journal |
| issn | 0120-6230 2422-2844 |
| language | English |
| last_indexed | 2024-04-09T22:06:57Z |
| publishDate | 2013-03-01 |
| publisher | Universidad de Antioquia |
| record_format | Article |
| series | Revista Facultad de Ingeniería Universidad de Antioquia |
| spelling | doaj.art-2fefc9b5f1cd4fae8fa0e36f7fde678c2023-03-23T12:35:22ZengUniversidad de AntioquiaRevista Facultad de Ingeniería Universidad de Antioquia0120-62302422-28442013-03-0152Monitoring geochemistry of the evolution of natural system: salar de Huasco (Chile)Ingrid Garcés Millas0Pedro López Julián1University of AntofagastaUniversity of Zaragoza Evaporation process affecting brines in salar of Huasco (Chile) has been reproduced at laboratory scale with the main objective of studying its geochemical evolving path. Natural brines have been evaporated under isothermal conditions, precipitating progressively calcite, gypsum, thenardite, and halite. This mineral sequence confirms the evolution of equilibrium conditions calculated by means of PHRQPITZ geochemical code. Geochemical modeling has allowed to determine that saline minerals reach saturation along the experiment performed at different evolutive moments that they do in natural conditions. This fact is due to two main causes, first to the interaction between dilute solutions entering salar with the external saline rim mainly composed of gypsum, whose solubilization causes that brines reach faster saturation respect to gypsum in the natural system compared to experiments in laboratory; and second, to precipitation of mirabilite as consequence of thermal oscillations to daily scale causing that halite equilibrium is reached for higher brine concentrations in salar that in laboratory, since mirabilite precipitation produces a significant depletion of sodium concentration in brines. https://revistas.udea.edu.co/index.php/ingenieria/article/view/14809Huasco salar's evaporationgeochemistrynatural brinesPHRQPITZsaturation |
| spellingShingle | Ingrid Garcés Millas Pedro López Julián Monitoring geochemistry of the evolution of natural system: salar de Huasco (Chile) Revista Facultad de Ingeniería Universidad de Antioquia Huasco salar's evaporation geochemistry natural brines PHRQPITZ saturation |
| title | Monitoring geochemistry of the evolution of natural system: salar de Huasco (Chile) |
| title_full | Monitoring geochemistry of the evolution of natural system: salar de Huasco (Chile) |
| title_fullStr | Monitoring geochemistry of the evolution of natural system: salar de Huasco (Chile) |
| title_full_unstemmed | Monitoring geochemistry of the evolution of natural system: salar de Huasco (Chile) |
| title_short | Monitoring geochemistry of the evolution of natural system: salar de Huasco (Chile) |
| title_sort | monitoring geochemistry of the evolution of natural system salar de huasco chile |
| topic | Huasco salar's evaporation geochemistry natural brines PHRQPITZ saturation |
| url | https://revistas.udea.edu.co/index.php/ingenieria/article/view/14809 |
| work_keys_str_mv | AT ingridgarcesmillas monitoringgeochemistryoftheevolutionofnaturalsystemsalardehuascochile AT pedrolopezjulian monitoringgeochemistryoftheevolutionofnaturalsystemsalardehuascochile |