Variaciones del color. Primeros estudios físicoquímicosde las pinturas rupestres de la Mariá, provincia de Santa Cruz

Abstract

COLOR VARIATION: INITIAL PHYSICO-CHEMICAL ANALYSES OF THE ROCK ART OF LA MARÍA, SANTA CRUZ PROVINCE. In this paper, the initial results of the physico-chemical analyses of the rock art of the La Mariá archaeological locality, Santa Cruz province, are presented. A micro-stratigraphic approach, a novel methodology for the study of pigments in Southern Patagonia, was implimented. Samples were analyzed using scanning electron microscopy with energy-dispersive X-ray spectroscopy and micro-Raman spectroscopy. This methodology enabled the main colors found in the locality (red, white, yellow and black) to be characterized in elemental and molecular terms. Results show that the composition of the paintings.