Term
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Definition
| Headwater, Floodplain, Mouth |
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Term
| Headwater (Shape, Sediment Preservation?) |
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Definition
| Top of a river, V Shaped, No Sediment Preservation |
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Term
| Floodplain (Shape, Sediment Preservation?) |
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Definition
| Broad and Flat, Sediment Preservation |
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Term
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Definition
| Running water usually flows in streams, ribbons of water confined to channels, or troughs, cut into the land. |
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Term
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Definition
| When the volume of water flowing in a stream exceeds the volume of the channel. |
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Term
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Definition
| When the extra flow of water deepens a channel relative to its surrounding, creating a stream. |
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Term
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Definition
| When the extra flow of water deepens a channel relative to its surrounding, creating a stream. |
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Term
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Definition
| As the main channel lengthens, smaller side channels, or tributaries, merge with the main channel. |
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Term
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Definition
| The array of interconnecting streams together. |
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Term
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Definition
The volume of water passing through an imaginary cross section of the stream in a unit of time.
D = Area of the Stream x Average Velocity |
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Term
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Definition
| Running water removes loose fragments of sediment, a process called scouring. |
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Term
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Definition
| Sand or gravel laden water acts like sandpaper and grinds away at the channel floor and walls. |
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Term
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Definition
| Running water dissolves soluble minerals as it passes. |
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Term
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Definition
| Running water dissolves soluble minerals from the sediment or rock of its substrate, and groundwater seeping into a stream through the channel walls brings the dissolved minerals with it. |
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Term
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Definition
| Consists of tiny solid grains, that swirl along with the water without settling to the floor of the channel. It carries 70% of the sediment. |
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Term
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Definition
| Consists of larger particles that bounce or roll along the stream floor. |
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Term
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Definition
| Maximum particle size a stream carries. High competence=large particles. Low competence=small particles. |
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Term
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Definition
| Total quantity of sediment it can carry. |
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Term
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Definition
| Sediments transported by a stream. |
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Term
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Definition
| Fluvial deposits (or alluvium) may accumulate along the stream bed in elongate mounds, called bars. |
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Term
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Definition
| Where a stream empties into a standing body of water, the water slows and a wedge of sediment called a delta accumulates. |
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Term
| Longitudinal Level (Profile) |
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Definition
| A cross-sectional image showing the variation in the river’s elevation along its length is roughly a concave-up curve. |
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Term
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Definition
| The lowest elevation a stream channel’s floor can reach at a given locality. |
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Term
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Definition
| In places where the walls collapse as fast as the stream down cuts, landslides and slumps gradually cause the slope of the walls to approach the angle of repose. |
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Term
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Definition
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Term
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Definition
| Where a fast-moving stream abruptly emerges from a mountain canyon into an open plain at the range front, the water that was once confined to a narrow channel can spread out over a broad surface. Here, the water slows and drops its sedimentary load. |
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Term
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Definition
| When a river channel winds back and forth in a series of snake-like curves. |
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Term
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Definition
| On the inside edge of a meander, water slows down so that its competence decreases and sediment accumulates in a wedge-shaped deposit. |
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Term
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Definition
| As a flood comes through a meandering stream, it cuts off some of the meanders by making a straighter line. The cut off part is an oxbow lake. |
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Term
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Definition
| When sediment creates a pair of low ridges on either side of the stream. |
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Term
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Definition
| When a river divides into a fan of small streams. |
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Term
| Delta (SP?CP). Grows by what? |
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Definition
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Term
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Definition
| Amount of energy needed to do work. Move Sediment, Erode Bedrock. SP= Slope x Discharge |
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Term
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Definition
| Energy needed to move sediment |
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Term
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Definition
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Term
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Definition
| The process by which one material grinds away at another. |
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Term
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Definition
| SP=CP. Concave up. Response to dams and faulting. |
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Term
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Definition
| Fluid flows in parallel layers. |
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Term
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Definition
| Fluid regime characterized by chaotic property changes. |
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