River delta The Okavango Delta in Botswana is one example. The generic term "mega delta" can be used to describe very large Asian river deltas, such as the Yangtze, Pearl, Red, Mekong, Irrawaddy, Ganges-Brahmaputra, and Indus. The formation of a delta is complicated, multiple, and cross-cutting over time, but in a simple delta three main types of bedding may be distinguished: the bottomset beds, foreset/frontset beds, and topset beds. This three part structure may be seen in small scale by crossbedding. The Ganges/Brahmaputra combination delta, which spans most of Bangladesh and empties into the Bay of Bengal, is the world's largest delta.
Indus River Delta , 220 km, and . Because the Indus river has switched its location at various points in history, it has an "active" delta region, and total delta region (all area that was once a part of the delta). The total area is estimated at , and . The active area is estimated at , and . The length of the total delta along the axis of Indus is estimated at , whereas the current delta stretches from the Arabian Sea to just south of Thatta (~). There are currently 17 major creeks(Including Sir Creek, Bhitiaro Creek and Kori Creek) and