Stream and River Deposits
The deposits in streams and rivers
What are stream and river deposits
Rivers and streams move enormous amounts of sediments, such as soils and rocks. Although erosion is a serious problem, rivers and streams also renew soils and form new land. Sometimes when there is to much sediments they need to be laid down which is a process called deposition. Deposition occurs where the current of a stream or river is decreased. Most of the time a river deposition occurs where a delta is located. A delta is a fan-shaped area where the speed of the river decreases And is normally is in water. An example is shown on the right picture. Another type of delta is called an alluvial fan which is the same thing but it occurs on land. Example shown on the left.
Floodplains and the dangers of flooding
Floodplains are areas where rivers overflow and deposition occurs along the banks of the river. Floodplains are rich farming areas because it bring new soil to the land. A flood plain is shown in the middle picture above this paragraph. Sometimes a river can overflow to much and cause a flood. The dangers of flooding are things like damage to property and death. Some pictures of hurricane katrina are shown in the left and right picture below. A way to make sure floods wont happen are with dams. The Hoover Dam is in the middle picture below.
This is what the flood that hurricane katrina made looks like
This is the Hoover Dam
This is the kind of damage that hurricane katrinas flood did and what most floods do to an area