Aeolian processes - Wikipedia
The movement of sediments in aeolian systems can be represented by sand-flow maps. These are based on meteorological observations, bedform orientations, and trends of yardangs. They are analogous to drainage maps, but are not as closely tied to topography, since wind can blow sand significant distances uphill.
Aeolian sand sorting and megaripple formation | Nature Physics
2018年4月30日 · Here, we argue that, under erosive conditions, sand sorting and structure formation can conspire to create distinct bedforms in the ‘forbidden wavelength gap’ between aeolian ripples and dunes....
Aeolian Sand and Sand Dunes - SpringerLink
It is more than half a century since the publication of R. A. Bagnold’s classic book The physics of blown sand and desert dunes, and it is a tribute to the quality of Bagnold’s work that many of the fundamental principles which he developed - main valid today.
Aeolian sands: Characterization, options of improvement and …
2014年12月30日 · Research on aeolian sands has been carried out in different branches of the physical and earth sciences. Early substantial publications have been reported concerning the geological origin of aeolian sands alluding to their physical, morphological, chemical and mineralogical properties.
Aeolian (Dunes) Landforms - U.S. National Park Service
Sand dunes (both active and stabilized by vegetation) can be found along beaches, and in arid or semi-arid regions. Dunes are mounds of loose sand created by wind and are the most well known aeolian features. There are a varitety of types of dunes, depending on their shape.
Aeolian Sand and Sand Dunes | Request PDF - ResearchGate
2009年1月1日 · Variations in grain shape, surface texture, porosity and permeability in aeolian sediments are reviewed, and consideration given to the sources and mineral composition of aeolian sands. This...
Geochemistry of aeolian sand in the Taklamakan Desert and …
2022年1月1日 · Geochemical characteristics of aeolian sand from two different dune fields were studied. Spatial differences are primarily caused by surface processes and provenances. Aeolian sand in the Horqin Sandy Land experienced intense chemical weathering. Coarse and fine sand fractions move via separate transportation pathways.
Climatic background of aeolian sand accumulation in the …
2024年6月30日 · Based on age data compiled from published studies, we analyze the climatic background of aeolian sand accumulation in the proximal sandy deserts/lands, and the potential linkage between aeolian sand accumulation and the synchronous aeolian dusts in the CLP.
Static Mechanical Properties of Aeolian Sand Improved with Silt
2024年11月28日 · Wei et al. employed fine angular gravel to improve aeolian sand, revealing that aeolian sand is a badly graded sand. Not only did the addition of fine angular gravel enhance the particle gradation of aeolian sand, but it also improved the mechanical properties of aeolian sand.
Scaling Laws in Aeolian Sand Transport Under Low Sand Availability
2022年5月24日 · Aeolian (wind-blown) sand transport produces ripples and dunes and plays a vital role in shaping the Earth's surface. This transport occurs mainly through sand grains hopping along the surface (saltation), thereby transferring to the ground momentum that may set new particles into hopping, rolling or sliding motion (Bagnold, 1941 ; Kok et al ...
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