First advances in the geochemical characteristics of volcanics of outcrops of Antofagasta de la Sierra (province of Catamarca, Argentina)
In different sectors of the Antofagasta de la Sierra micro-region (Catamarca Province, Southern Argentine Pune) outcrops of macroscopically very similar vulcanites (volcanic rocks with ratios of glass below 80%, sensu Aschero et al. 2002/2004) have been recorded. In order to differentiate between th...
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| Autores principales: | , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Facultad de Filosofía y Humanidades. Museo de Antropología
2013
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/antropologia/article/view/5502 |
| Aporte de: |
| Sumario: | In different sectors of the Antofagasta de la Sierra micro-region (Catamarca Province, Southern Argentine Pune) outcrops of macroscopically very similar vulcanites (volcanic rocks with ratios of glass below 80%, sensu Aschero et al. 2002/2004) have been recorded. In order to differentiate between these and contribute to their identification in the archaeological record, various methods and techniques were applied to samples of these rocks. In this instance, the initial results obtained from geochemical characterization, through Energy Dispersive X-ray Fluorescence, are presented. The vulcanites from different outcrops tend to show different concentrations for some elements. The results are promising and encourage further investigation into the application of geochemical methods for the differentiation and determination of the origin of these volcanic rocks. Note that in the Argentine Northwest geochemical methods have been exclusively applied to a particularly volcanic rock, obsidian, and have not yet been used on less homogeneous volcanic rocks with more irregular surfaces. |
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