How does the type of bedrock over which a stream flows affect?

How does the type of bedrock over which a stream flows affect?

The type of bedrock may change as a river flows downstream, affecting erosional processes. The main processes being: stream power, abrasion, quarrying, wedging, and dissolution. These rivers are a combination of all of these processes but are dependent upon the individual river and its type of bedrock.

How does the speed of surface water movement relate to the size of soil particles the moving water can carry?

The faster the water moves, the larger the particles it can carry both in suspen- sion and as part of its bed load.

What are three methods a stream can use to erode bedrock quizlet?

Streams transport sediment in three ways:

• in solution (dissolved load)
• in suspension (suspended load)
• scooting or rolling along the bottom (bed load)

What is a bedrock stream?

bedrock stream. A stream that is carved into bedrock, commonly in mountainous areas. (

What are smaller streams called?

A stream is a body of water that flows on Earth’s surface. As smaller streams flow downhill, they often merge together to form larger streams. These smaller streams are called tributaries. Streams create channels by wearing down rock and carrying it and other sediment downstream.

What factors control a stream’s velocity?

The velocity of a river is determined by many factors, including the shape of its channel, the gradient of the slope that the river moves along, the volume of water that the river carries and the amount of friction caused by rough edges within the riverbed.

When a river flows over a steep edge what is created?

Rapids are sections of a river where the river bed has a relatively steep gradient, causing an increase in water velocity and turbulence. Rapids are hydrological features between a run (a smoothly flowing part of a stream) and a cascade.

What are three methods a stream can use to erode bedrock?

Hydraulic action, abrasion, and solution are the three main ways that streams erode the earth’s surface.

What factors control a stream’s velocity quizlet?

Factors that influence a stream’s velocity include gradient, channel shape, and channel roughness.

How does the base level of a stream affect erosion?

This lowered velocity leads to less erosion of the stream’s channel. Another example of a local base level is a dam. If you were to take a truckload of boulders and drop them into a stream, they would stop the flow of water. The water behind your dam would pool and slow the velocity of the water flowing toward the dam.

What happens when a river overflows its channel?

When a river floods or overflows its channel, the area where the stream flows is suddenly much broader and shallower than it was when it was in its channel. This slows down the velocity of the stream’s flow and causes the stream to drop off much of its load.

What happens to a stream as it moves out of the mountains?

As a stream moves out of high mountainous areas into lower areas closer to sea level, the stream is closer to its base level and does more work eroding the edges of its banks than downcutting into its stream bed. At some point in most streams, there are curves or bends in the stream channel called meanders (Figure 10.3).

Why is the base level of a stream important?

The base level of a stream can be defined as the lowest level to which running water can flow. At the base level, the water in the stream has less velocity, which means the water flow has less energy, so its ability to erode or chip away at the land surrounding it is decreased. This inability to erode is important; in fact,…