Maxson, J.H., and Campbell, I., 1934, Archean ripple mark in Grand Canyon: American Journal of Science, 5th ser., v. 28, p. 298-303. Authors Maxson, J.H., and Campbell, I. Publication Date 1934 Citation American Journal of Science, 5th ser., v. 28, p. 298-303. State AZ Province CP County CN Keywords Metamorphic Petrology Proterozoic More Keywords Metamorphic Petrology, Proterozoic, AzGeoBib RefNum 6535