Keyes, Charles, 1941, Serial relations of Cambric and pre-Cambric sedimentation at Grand Canyon [abs.]: Pan-American Geologist, v. 76, no. 1, p. 76. Authors Keyes, Charles Publication Date 1941 Citation Pan-American Geologist, v. 76, no. 1, p. 76. State AZ Province CP TR County CN MO Placenames Marble Canyon Keywords Stratigraphy Cambrian Proterozoic More Keywords Stratigraphy, Cambrian, Proterozoic, AzGeoBib RefNum 5309