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<br />IV <br /> <br />f ' l.. <br />It;. .~,(, <br /> <br />Figures <br /> <br />1. Location map at Grand Canyon, with study areas indicatednuu.m-------um------mm---n.3 <br />2. Aerial photograph 12002) of the Palisades study area m________oo.m______oom_n______moo_____7 <br />3. Photograph ot aeolian dunes at Palisades______n___mm___nm_.m_____oomoo___n_mm____nB <br />4. Photographs of playa deposits at the eastern edge of the Palisades study area ___nmm_____9 <br />5. Aerial photograph 11965) at the Palisades study area oo_________oo_m______oom_n____mm______9 <br />6. Grain-size plots tor units F and G of section 1, Palisades _______oo_m____h_m___________m____ 11 <br />7. Grain-size plot for unit H at section 3, Palisades ___oom________mm_______oom_n____mm____l1 <br />B. Grain-size data from section 4, Palisadesoo_______oom_____n____oo_m____oom_n____n_moo____ 11 <br />9. Grain-size data for samples of a flood deposit, unit B of section 4, Palisades _n___mm_____l1 <br />10. Photographs at driftwood logs at Palisades _____mmn______nmoo______oom________oom____n12 <br />11. Graph of stage-discharge relationship forthe Palisades area, based on <br />elevations at driftwood logs m____nnoooo_______mm___n___n_moo____noom___n___mm___n 13 <br />12. Graph showing proportions of sediments of different depositional <br />environments in sections at Palisades oon____mm__________m______nmm________oooooo____oo. 13 <br />13. Aerial photograph 120021 of the Lower Comanche study areaoon___nmm____nmm______n_15 <br />14. Aerial photograph of the arroyo system at Lower Comanche oon_____mm______oom___nnm 15 <br />15. Aerial photograph (19651 of the Lower Comanche areaoooomnn____mm______oom________m16 <br />16. Photograph of the white-layer horizon at Lower Comanche _nnn_mm______nm________oooo16 <br />17. Grain-size plots for units C and F of section 2, Lower Comanche---oom------oooooo--------m-19 <br />lB. Grain-size plots for units B, E, and F of section 6, Lower Comanche nmm_______moo______n19 <br />19. Graph of stage-discharge relationship for the Lower Comanche area, <br />based on elevations of driftwood logs_nnn__mm_______oom_n_____oo_mn___n_m______nm 20 <br />20. Graph showing proportions at sediments of different depositional <br />environments in sections at Lower Comanche m_______oom__________mm___nmm_______oooo 20 <br />21. Aerial photographs (20021 of the Arroyo Grande study areaoo_____oom____n____oom______moo 22 <br />22. Photographs of the main arroyo network at Arroyo Grande______n_mm____oooooo______noom 22 <br />23. Aerial photograph 11965) of the Arroyo Grande area noomoonn_oomoo____nmmn___noooooo 23 <br />24. Photograph showing a wide drainage at the downstream end of the <br />Arroyo Grande area_oomh____nmoooo__n__moo_______m__oo___n_moo________moo______oooo_m 23 <br />25. Grain'size-plots fof sections 1 a and 1 b, Arroyo Grande oo______noooo.________oooooo_______"_.moo 24 <br />26. Grain-size plots tor two flood units lunits C and H) in section 5, Arroyo Grande _____oooomm 25 <br />27. Grain-size plots tor subunit G3 of section 6, Arroyo Grande ______m________moo_______oomm_ 25 <br />28. Grain-size plots for section B, Arroyo Grande _______oom____n.oom______n_moo____n_m____n 25 <br />29. Grain-size plots for section 10, Arroyo Grande ____oomoo_______oo_m______oooon_nnnm_m___ 25 <br />30. Graphs showing grain-size trends within four flood units at Arroyo Grande m___.noom_____ 26 <br />31. Graph showing proportions of sediments of different depositional <br />environments in sections at Arroyo Grande m_______m_____n_oom___nnm__oo___n_m____n_ 27 <br />32. Stratigraphic diagram for section 1, Palisades ____moom___nmm_______m__________mmoooo 37 <br />33. Stratigraphic diagram for section 2, Palisades ___nmm___nm________noomn______oom______ 3B <br />34. Stratigraphic diagram for section 3, Palisadesn___oom_______moo_______.m_______nnh_m_oo 39 <br />35. Photograph showing units A, B, and C of section 4, Palisades oooo______noomm____mmoo_oo 40 <br />36. Stratigraphic diagram for section 4, Palisades oonnmoo__________m_______m_m______oomm_ 40 <br />