waterfall Flashcards
what stage is the waterfall found
in the youthful/old
example in Ireland
pollaphuca on the liffey Co Wiclow
Tore waterfall kilarney kerry
Powerscourt Wicklow
why does a waterfall occur
it occurs over a lede where there is hard and soft rock
what is created when when the falling water hits the bottom of the bed
plunge pool
what is created when the falling water begins to undercut the rock by hydraulic action
overhang
overtime it becomes_____
unstable
when the water fall retreats what can be formed
steep sided gorges EG Niagara falls
what is often formed above the area of hard rock
a series of rapids
what does the swirl of water cause in a plunge pool
eddying
what happens to the soft rock
is is eroded and transported downstream
what happens to the hard rock
when the soft rock is eroded the remaining hard rock is left exposed and collapses