Dunes and Arid Landscapes. v 0022 of 'Wind' by Greg Pouch at 2011-02-28 20:22:10 LastSavedBeforeThis 2011-01-19 17:38:19. Dunes and Arid Landscapes. 3 Wind 4 Eolian Processes 5 Eolian Erosion 6 Eolian Deposition > Fines 7 Eolian Deposition > Sand Dune Types
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
v 0022 of 'Wind' by Greg Pouch at 2011-02-28 20:22:10 LastSavedBeforeThis 2011-01-19 17:38:19
Dunes and Arid Landscapes
4 Eolian Processes
5 Eolian Erosion
6 Eolian Deposition > Fines
7 Eolian Deposition > Sand
8 Dune types > Barchans, a.k.a. Crescentic dunes
9 Dune types > Longitudinal Dunes, a.k.a seifs, linear dunes
10 Dune types > Transverse Dunes
11 Dune type > Parabolic Dunes, a.k.a. blowout dunes, hairpin dunes, U-shaped dunes
12 Dune type > Star dunes
14 Deserts and Other Arid Regions
13 (Photo of)Typical Arid Landscape [NOTE REVERSAL OF ORDER IN OUTLINE]
15 Arid Landscapes Processes
16 Arid Landscapes Products
17 Typical Arid Landscape
19 Plateau, Mesa, and Butte Topography
20 Fault-Block Mountains with Alluvial Fans
21 Bryce Canyon (Badlands)
22 Fajada Butte at Chaco Canyon National Park
Like water, wind can carry sediment in suspension or saltation, and very limited “bed load”.
In the photo, the wind is coming from upper left to lower right; the dune is propagating towards lower right.
Most desert landscapes are dominated by stream and mass-wasting processes, not eolian. The sporadic rainfall, less water, and vegetation modify "normal" (humid) stream processes in several ways.
Distributary, flashy streams in alluvial fans
Perennial stream fed by groundwater