Mass Movement
Mass movement is the downward movement of rocks and soil due to gravity. In this process gravity, moves loose material down a slope. There are multiple types of mass movement. We will be starting off by explaining landslides, then mudflows, followed by my favorite, creeps, and last but not least, slumps.
Landslides
As you can see in the picture above, landslides are very dangerous and can destroy hundreds of peoples houses. How this happens is when heavy rain or earthquakes loosen the material on the slope, which causes a landslide
Mudflows
Rapid mass movement of soil and other sediment mixed with water. It usually occurs where fine sediment collected in thick layers. The rain losens these lays and increases the overall weight of the soil. After it rains, the sediment mixed with water goes down the slope
Creep
Creep is when soil slowly "creeps" down a slope. It occurs because of ice forming when the ground freezes, which makes the soil expand outwards. When the ground thaws, soil move a small distance downhill. They can cove a lot of distance over time
Slumping
A Slumping when weak layers of soil or rock suddenly move downslope as a single unit. Gravity acts on water saturated soil and rock and leaves curved scar in the landscape