Compositional analysis of obsidian artifacts from the Templo Mayor of Tenochtitlan, capital of the Mexica (Aztec) Empire - Diego Matadamas-Gomora; Jason Nesbitt; Rodolfo Aguilar Tapia; Leonardo López Luján; Julia Sjödahl; Tatsuya Murakami; Alejandro Pastrana (Proceedings of the National Academy of Sciences, 2025)