Larger sediments that bounce, roll, or slide along the bottom 2. Ions in solution that are dispersed throughout the flow 3. Fine sediments that are held up by the water and carried throughout the water column 1. Bed Load 2. Dissolved Load 3. Suspended Load (Refer to P4) What kind of stream channel is visible here? a. Overflow channel b.
Erosion will occur near the head of the stream, but nowhere else c. Water is moving so smoothly that the sediments are carried in the center of the water current. d. Turbulent flow contributes to erosion because it lifts particles from the stream bed. d. Turbulent flow contributes to erosion because it lifts particles from the stream bed.
Streams generally receive their water from two sources. What are those two sources? a. Groundwater and evaporation b. Lakes and meteorites d. Meteorites and comets Why are urban areas susceptible to flash floods? a. Oil, gasoline, and other auto fluids repel more water into the stream system b.
True or False: Maximum velocity occurs when the stream is at the bankfull stage. (Refer to P1) What kind of stream channel is visible here? a. Meandering channel
bedrock stream. A stream that is carved into bedrock, commonly in mountainous areas. ( 16.2) braided stream. A stream or river with an interconnecting network of branching and reuniting shallow channels. (
Most braided streams occur where there are almost no lateral confining banks, as on large alluvial piedmont fans or sandurs, but in certain regions they occur in confined valleys (often “underfit”; see Streams—Underfit).
Which of the three stream cross-sections is associated with a high-gradient stream ? The second stream cross-section (B) is associated with a high-gradient stream.
When a stream is a v-shaped valley running on bedrock, the stream is? Well above base level. A stream meanders across a broad, flat valley with numerous swamps and lakes.
Are bedrock channels more likely to be found near the head or the mouth of a stream? Bedrock channels are more likely to be found at the head of a stream where gradient is steep.
How are Braided Rivers Formed? Braided river formations are common where water flow is slow and there is a build up of sediment in the river. This can cause changes in the direction of the river and create new channels. This can occur to form a river delta, which is a form of braided river.
Capacity is the maximum load of solid particles a stream can transport per unit of time, whereas competence is a measure of a stream's ability to transport particles based on size rather than quantity.
What is a stream's longitudinal profile? a cross-sectional view of a stream from the headwaters to its mouth.
Terms in this set (41) a stream begins at the source, and then flows along a path called the channel until it reaches the mouth where it empties into a body of water. overtime a river will ______, which deepens the river's channel. this "downward" erosion forms a __________.
The middle course of a river is found on gently sloping land, and is typically identified by its meandering path - the sweeping side to side curves. The middle course has two main features - meanders and ox-bow lakes.
Meandering Streams High-gradient streams can result in downward erosion, or downcutting. This makes steep, straight valleys with little or no floodplains. On the other hand, low- gradient streams wear land away both sideways and downward. This makes wider and wider valleys.
V-shaped valleys are carved out by the river in their youthful stages. They are formed by the erosional actions of the rivers. Their shapes are of the letter of the English alphabet V. They are associated with gorges, canyons etc.