Análisis de residuos orgánicos aplicados a metates y pocitos del sitio Presa de la Luz, Jalisco

This article focuses on the archaeological site known as Presa de la Luz (600 AD - 1000 AD), located in Jalisco, Mexico. The site is distinguished by the presence of a variety of graphic-rock manifestations (GRMs), both on the surface and beneath it. Human activities have been continuous and evident, resulting in significant alterations to the archaeological remains. This environment offers a rich setting for archaeological studies aimed at understanding the social and cultural dynamics of the region. While previous research has primarily focused on documentation and description, there has been little in-depth exploration into the interpretation of the use and functionality of these manifestations in the past. Therefore, the research objective was to analyze the GRMs at the site as indicators of spatial appropriation and to determine their use and functionality through a multidisciplinary methodology. This approach incorporated data from material records, natural elements, and chemical analyses. As a result, starch granules were identified in grinding stones and pocitos (which exhibit characteristics of permanence), particularly those of corn and beans.