Lucas SG, McIntosh WC, González-León CM. Eocene Ar40-Ar39 age data of supposed Cretaceous volcanics (Rhyolite Tuff formation) in northeastern Sonora, Mexico. revmexcg [Internet]. 2019 Jan. 14 [cited 2025 May 2];13(2):184-7. Available from: https://www.rmcg.unam.mx/index.php/rmcg/article/view/1156