Ciencias Geológicas RM de. Covers, Revista Mexicana de Ciencias Geológicas, vol. 26, num. 3, December 2009. revmexcg [Internet]. 2024 Apr. 26 [cited 2025 Mar. 15];26(3). Available from: https://rmcg.unam.mx/index.php/rmcg/article/view/1826