erosion and transportation proses Flashcards
what is hydraulic action
Hydraulic Action is the sheer force of water crashing against the coastline causing material to be dislodged and carried away by the sea. Compression. Compression occurs in rocky areas when air enters into crack in rock.
what is abraton
Abrasion is when rocks and other materials carried by the sea are picked up by strong waves and thrown against the coastline causing more material to be broken off and carried away by the sea.
what is solution
When the water dissolves certain types of rocks, eg limestone.
what is attrition
when rocks that the sea is carrying knock against each other. They break apart to become smaller and more rounded.
what is suspension
lighter sediment is suspended (carried) within the water, most commonly near the mouth of the rive
what is Traction
the rolling or dragging of large grains along a river bed or shore, aided by the push of the smaller grains
what is saltation
the bouncing of sand grains as they are picked up, carried along, and dropped repeatedly by flowing water
