Ciencias Geológicas RM de. Covers, Revista Mexicana de Ciencias Geológicas, vol. 30, num. 2, August 2013. revmexcg [Internet]. 2024 Apr. 26 [cited 2025 Apr. 5];30(2). Available from: https://rmcg.unam.mx/index.php/rmcg/article/view/1815