River Flood Plains: Some Observations On Their Formation

____-----__-___-___..______-_--_-__________ Introduction_______________________________________ Frequency of overbank flow.__________________________ Formation of a typical flood plain_____._______________ The characteristics of point bars._________________ Sediments forming a typical point bar_________ Process of formation and elevation of the surface of point bars.____________________________ Rate of lateral migration.___________________ Overbank deposition.__^________________________ Nature and amount of overbank deposition Natural levees,_____________________________ Page 87 87 88 91 91 91 92 96 97 97 Page Foimation of a typical flood plain—Continued Overbank deposition—Continued Hypothetical construction of a flood plain by overbank deposition______________________ 100 Conditions affecting amounts of overbank deposition. ______________________________ 100 Flood plains in stable, aggrading, and degrading streams _ 103 Channel pattern and formation of the flood plain.______ 105 Conclusion,_ _______________________________________ 106 References cited--___-__--__-----_--_-_--______----106 Index. ______...______________________ 109