Meandering rivers Flashcards
1
Q
point bars
A
-make epsilon cx beds that dip 90 degrees to flow direction on the cutbank
2
Q
point bar structures
A
soil, current ripples, dunes, plane beds, cx trough beds of channel floor (pt bar to cut bank)
3
Q
overbank sedimentation architectural elements
A
meander scar, meandering stream, oxbow lake, pt bars, bluffs, backswamp, floodplains, levees, crevasse splays
4
Q
when are levee sediments deposited
A
when channel is no longer confined. the reduced velocity leads to sedimentation. seds are low energy types
5
Q
what do anastomosing rivers have
A
sheetlike crevasse splays, mudstone floodplains (humid climate)
