Quaternary geology of the Granite Park area, Grand Canyon, Arizona; aggradation-downcutting cycles, calibration of soils stages, and response of fluvial system to volcanic activity, with an appendix synopsis of Granite Park archeology - Lucchitta, Ivo; Curtis, G.H.; Davis, M.; Davis, S.W.; Turrin, B.; Coder, Christopher (Open-File Report, 1995)