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Intersecciones en antropología

On-line version ISSN 1850-373X


ELIAS, Alejandra M; TCHILINGUIRIAN, Pablo  and  ESCOLA, Patricia. From the macroscopic to the microscopic: similar volcanic rocks with different origins from Antofagasta de la Sierra, Catamarca province. Intersecciones antropol. [online]. 2011, vol.12, n.1, pp.207-220. ISSN 1850-373X.

This paper presents a macroscopic and petrographic comparative analysis of volcanic rocks with similar characteristics but pertaining to different outcrops: Campo Cortaderas, Los Negros and Afloramientos de Vulcanita 8 in the Antofagasta de la Sierra microregion. The samples studied were obtained from different areas of each outcrop, the objective being to examine internal variability and therefore establish differences between the outcrops and the rocks present in them. The results enabled preliminary macro and microscopic criteria of differentiation to be established, contributing to the identification of different types of rocks, which in turn helps determine the potential spatial origin of similar rocks from the archaeological record.

Keywords : Volcanic rocks; Intern outcrop variability; Macroscopic characterization; Petrography; Potential spatial origin.

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