Ch. 13 Terms Continued
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12 terms
Terms | Definitions |
|---|---|
 Pothole | deep, circular basins formed in bedrock when river forms small whirlpools. |
| Watershed/Drainage basin | all the land that drains directly into a river or through its tributaries |
| Divide | high land that separates drainage basins from one another; Major divide in U.S: Rocky Mountains |
| Mississippi River System | Largest drainage basin in U.S. |
| discharge | how much water in a river passes a certain point at a certain time. More rain = more discharge/ desert= less discharge |
| deposition | process of a river depositing materials. |
| Delta | fan-shaped deposit that forms when a river flows into a quiet/large body of water (lake/ocean/sea) |
| Headward Erosion | when land is worn away from the head of a stream/gully |
| Natural levees | Deposits that form elevated ridges (which prevent flooding) |
| Oxbow lake | curved body of water formed when deposits separate a meander from its river. |
| Stream Piracy | When part of the drainage of one stream is captured by another, faster-eroding stream. |
| Meanders | curvy rivers/streams that wind back and forth; important in erosion of material |
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