1 Insertion â when a base is added to the sequence. 2  Deletion â when a base is deleted from the sequence.  Copy number variation (CNV) is a type of mutation where large chunks of DNA are inserted, repeated or lost. These regions of DNA can be between 10,000 and 5,000,000 bases long.
Wind deposition can result in dunes and loess deposits.
Large basins are complex and there is often one or more non-aeolian processes work. These non-aeolian processes include tectonics, glacial and alluvial forces. (See Table 1) Depositional Landforms Deposition is the laying down of sediment transported by wind, water or ice.