The particles in a sand dune deposit are small and very well sorted and have surface pits that give them a frosted appearance this deposit most likely was transported by wind.
Sand grains are categorized as sedimentary grains that are carried from one place to another by natural factors such as wind and water. These sedimentary grains are formed by the erosion of rocks through the physical weathering process.
Erosion is defined as the decomposition and transportation of rock to far-off distances.
In general, sand dune deposit is a collection of small sized-sand particles that are transported and deposited by wind and ultimately accumulated to form a ridge or mound of sand under the force of gravity.
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