
handle: 11336/80039
En el presente trabajo se identifican, describen y se muestra la distribución areal de las facies y evapofacies asociadas al ambiente evaporítico del Salar Hombre Muerto, ubicado en el borde oriental de la Puna Austral, en una zona con una amplia difusión de yacimientos de boratos. El salar puede ser dividido en dos subcuencas, la occidental y la oriental, ambas separadas por el islote central de Farallón Catal. La subcuenca oriental es boratífera, con bajo contenido en cloruros, mientras que la subcuenca occidental presenta tanto en superficie como en profundidad potentes acumulaciones de halita (hasta 900 m) y es prácticamente estéril en boratos. Se plantean varias hipótesis sobre la génesis de la evapofacies boratífera, representada mineralógicamente por el borato ulexita. Esta es la evapofacies de interés económico y que se explota en el salar, donde además se extraen salmueras de litio.
This paper identifies, describes and shows the areal distribution of facies and evapofacies associated with Salar Hombre Muerto, located in the eastern border of the Southern Puna, in an area with a wide diffusion of borates. The salar can be divided in two sub-basins, the western and the eastern, both separate for the central island of Farallón Catal. The eastern sub-basin is boratiferous, with low chlorides contained, while the western one shows a thick halite accumulation (up to 900 m) in surface and in depth and it is practically sterile in borates. Several hypothesis on the genesis of the boratiferous evapofacies, minerallogically represented by the borate ulexite, are proposed. This evapofacies is the economic interest mined area, where lithium brines are also extracted.
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta. Facultad de Cs.naturales. Escuela de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Instituto Superior de Correlación Geológica. Grupo Vinculado al INSUGEO- Centro de Estudios Geologicos Andinos; Argentina
Fil: Vinante, Daniel. Alexander Gold Group LTD; Argentina
EVAPOFACIES, SALARES, https://purl.org/becyt/ford/1.5, PUNA, ULEXITA, https://purl.org/becyt/ford/1
EVAPOFACIES, SALARES, https://purl.org/becyt/ford/1.5, PUNA, ULEXITA, https://purl.org/becyt/ford/1
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