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.
Saskatchewan River Delta Saskatchewan River Delta The Saskatchewan River Delta (SRD) is a large alluvial delta that straddles the border between the provinces of Saskatchewan and Manitoba in south-central Canada. Currently terminating at Cedar Lake, Manitoba, the delta is composed mainly of various types of wetlands, shallow lakes, and active and abandoned river channels bordered by forested natural levees. Sixty-five percent of the delta is occupied by vegetated wetlands, over one third of which comprise peat-forming fens and bogs. Geographically, the SRD consists of two parts---western and eastern---separated by a prominent moraine (The Pas Moraine) that was deposited by the Laurentide Ice Sheet