Ancient Rock Paintings at Region del Cabo-BCS, Mexico: An Analytical Study

A groundbreaking analysis of ancient rock paintings in the Sierra de San Francisco, Mexico, reveals that iron and calcium compounds form the primary constituents of the pictorial layers. Fourier-transform infrared spectroscopy further suggests the use of a flora-based composite as the binding agent. Researchers employed scanning electron microscopy-energy dispersive X-ray spectroscopy to analyze samples from six panels and one solitary figure across four archaeological sites in the Sierra de las Cacachilas, identifying intrusive igneous rocks in the supports. These findings are crucial for the conservation efforts of this UNESCO World Heritage Site, providing insights into the materials and techniques used by ancient artists.

Méndez-Mejía, Ú., Tenorio, M. D., Jiménez-Reyes, M., & Rodríguez-Tomp, R. (2023). Ancient Rock Paintings at Region del Cabo-BCS, Mexico: An Analytical Study. Brazilian Journal of Analytical Chemistry. https://doi.org/10.30744/brjac.2179-3425.ar-16-2023