Fluvial Landforms
energy: gradient = vertical/horizontal, channel shape, channel roughness, vegetation
Erosion - high energy; hydraulic action, abrasion, corrosion (dissolution); downward erosion, V-shaped valleys, lateral erosion, headward erosion
Deposition - loss in energy; delta - stream meets calm water (usually ocean), alluvial fan - abrupt change in gradient, flood plain, levee, meandering stream - point bar, cut bank, oxbow lake, braided stream - longitudinal bar
Describe the factors
that control the energy of a stream. How does energy affect erosion?
deposition? Describe the three main processes by which
streams cause erosion. Also, describe
the three general ways in which erosion can change the size and shape of a
stream. (downward erosion, lateral erosion, headward erosion) Compare and contrast the different types of stream
deposits: deltas, alluvial fans, levees, floodplains, and point bars.
Compare and contrast meandering streams and braided streams. Describe the types of deposits associated with each.