Meandering rivers

Question 1

point bars

Answer 1

-make epsilon cx beds that dip 90 degrees to flow direction on the cutbank

Question 2

point bar structures

Answer 2

soil, current ripples, dunes, plane beds, cx trough beds of channel floor (pt bar to cut bank)

Question 3

overbank sedimentation architectural elements

Answer 3

meander scar, meandering stream, oxbow lake, pt bars, bluffs, backswamp, floodplains, levees, crevasse splays

Question 4

when are levee sediments deposited

Answer 4

when channel is no longer confined. the reduced velocity leads to sedimentation. seds are low energy types

Question 5

what do anastomosing rivers have

Answer 5

sheetlike crevasse splays, mudstone floodplains (humid climate)