Agents of Erosion Agents of erosion include -- Running water is the big Kahuna of all erosional agents.
How does water carry the sediments? Water carries sediments in the following ways: – Solution – - – Suspension – - – Rolling or bouncing along the streambed. – Floating – -
River Floor Flow of the River Cobbles & Pebbles Move by sliding, rolling along the river floor Slower than the water flow Sand Bounces along river floor Slower than the water flow Colloids (Silt & Clay) & Dissolved Ions Carried in suspension Same speed as water Streams act as conveyor belts
Lake Ocean Stream Side View Greatest Potential Energy = Stored Energy Greatest Kinetic Energy = Energy of Motion Low Kinetic & Potential Energy Most Erosion Most Deposition Dynamic Equilibrium Rate of Erosion = -
Changing Stream Velocity: A. -- B. -- Stream velocity determines size of sediment carried. ESRT pg 6 Take out your ESRT!