Kleber, Arno. “Heavy-Mineral Analysis As a Tool in Tephrochronology, With an Example from the La Sal Mountains, Utah, U.S.A”. Geologos 19, no. 1-2 (May 31, 2013): 87–94. Accessed May 19, 2024. https://pressto.amu.edu.pl/index.php/logos/article/view/logos-2013-0006.