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Introducing Physical Geography 4th edition. Alan strahler...
Chapter 16
13
Geography
05/12/2009

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Term
Colluviums
Definition
Deposit of sediment or rock particles accumulating from overland flow at the base of a slope and originating from higher slopes where sheet erosion is in progress
Term
Accelerated erosion
Definition
Soil erosion occurring at a rate much faster than soil horizons can be formed from the parent regolith
Term
Sheet erosion
Definition
Type of accelerated soil erosion in which thin layers of soil are removed without formation of rills or gullies
Term
Rill erosion
Definition
Form of accelerated erosion in which numerous, closely spaced miniature channels (rills) are scored into the surface of exposed soil or regolith
Term
Stream order
Definition
One way to study the properties of streams is to organize them by stream order, in which stream segments are ordered from those draining the smallest of slopes to those formed far down stream from the progressive joining of many upstream segments. 554
Term
Alluvial terraces
Definition
Bench-like landform carved in alluvium by a stream during degradation
Term
Entrenched meanders
Definition
Winding, sinuous valley produced by degradation of a stream with trenching into the bedrock by downcutting
Term
Influent Streams
Definition
A stream that contributes water to the zone of saturation of groundwater and develops bank storage. Also known as losing stream
Term
Effluent streams
Definition
A stream that is fed by seeping groundwater
Term
Erosional landforms
Definition
Ravines, valleys, peaks, canyons, spurs, and col
Term
Deposiitonal landforms
Definition
Delta, fan, and floodplain
Term
Natural levee
Definition
Belt of higher ground paralleling a meandering alluvial river on both sides of the stream channel and built up by deposition of fine sediment during periods of overbank flooding
Term
Backswamp
Definition
Area of low, swampy ground on the floodplain of an alluvial river between the natural levee and the bluffs