arid landforms
Post on 16-May-2015
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DESCRIPTION
Overview of arid landforms as an intro to the subject area
TRANSCRIPT
- 1. Arid Landforms
2. Basic Concepts
I. Most deserts exhibit highly angular landscapes.
- mechanical weathering dominates
3. angular particles of weathered rock; bedrock outcrops 4.
little soil or vegetation to soften landscape II. Softer, more
rounded landscapes appear where deposition is
predominant.
- dunes
III. Desert rainfall is infrequent, intense, and
unreliable.
- intense flash flooding, intense erosion
5. ephemeral streams
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